Omega OMB DAQBOARD 500 User Manual

User’s Guide

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OMB-DAQBOARD-500 Series

16-Bit, 200-KHz PCI Data Acquisition Boards

OMB-1138-0901 rev 2.3

324545A-01

Warnings, Cautions, Notes, and Tips

Refer all service to qualified personnel. This symbol warns of possible personal injury or equipment damage under

noted conditions. Follow all safety standards of professional practice and the recommendations in this manual. Using

this equipment in ways other than described in this manual can present serious safety hazards or cause equipment

damage.

This warning symbol is used in this manual or on the equipment to warn of possible injury or death from electrical

shock under noted conditions.

This ESD caution symbol urges proper handling of equipment or components sensitive to damage from electrostatic

discharge. Proper handling guidelines include the use of grounded anti-static mats and wrist straps, ESD-protective

bags and cartons, and related procedures.

This symbol indicates the message is important, but is not of a Warning or Caution category. These notes can be of

great benefit to the user, and should be read.

In this manual, the book symbol always precedes the words “Reference Note.” This type of note identifies the location

of additional information that may prove helpful. References may be made to other chapters or other documentation.

Tips provide advice that may save time during a procedure, or help to clarify an issue. Tips may include additional

reference.

Specifications and Calibration

Specifications are subject to change without notice. Significant changes will be addressed in an addendum or revision to

the manual. As applicable, we calibrate our hardware to published specifications. Periodic hardware calibration is not

covered under the warranty and must be performed by qualified personnel as specified in this manual. Improper

calibration procedures may void the warranty.

iii

Your order was carefully inspected prior to shipment. When you receive your order, carefully

unpack all items from the shipping carton and check for physical signs of damage that may have

occurred during shipment. Promptly report any damage to the shipping agent and your sales

representative. Retain all shipping materials in case the unit needs returned to the factory.

CAUTION

Using this equipment in ways other than described in this manual can cause

personal injury or equipment damage. Before setting up and using your

equipment, you should read all documentation that covers your system.

Pay special attention to Warnings and Cautions.

During software installation, Adobe^®PDF versions of user manuals will automatically

Note:

install onto your hard drive as a part of product support. The default location is in the

Programs group, which can be accessed from the Windows Desktop. Initial

navigation is as follows:

Start [Desktop “Start” pull-down menu]

⇒ Programs

⇒ Omega DaqX Software

You can also access the PDF documents directly from the data acquisition CD by using

the <View PDFs> button located on the opening screen.

Refer to the PDF documentation for details regarding both hardware and software.

A copy of the Adobe Acrobat Reader^®is included on your CD. The Reader provides

a means of reading and printing the PDF documents. Note that hardcopy versions of

the manuals can be ordered from the factory.

Table of Contents

OMB-DAQBOARD-500 Series, Installation Guide

1 – Introduction

Basic Information …… 1-1

Block Diagram …… 1-2

Board Features …… 1-3

2 – Connections and Pinouts

Overview …… 2-1

68-Pin SCSI Type III Connector …… 2-2

Signal Definitions …… 2-3

TB-100 Terminal Connector Option …… 2-6

External Connections …… 2-7

3 – Configuration

Configuration through Software …… 3-1

Analog Input Configuration …… 3-1

ADC Ranges …… 3-1

DAC Ranges …… 3-2

4 – Software and Board Operation

Overview …… 4-1

Out-of-the-Box Software ……4-1

Drivers for Third-Party, Icon Driven Software …… 4-2

DaqCOM Driver …… 4-2

Theory of Operation …… 4-3

5 – CE-Compliance

Overview …… 5-1

CE Standards and Directives …… 5-1

Safety Conditions …… 5-2

Emissions/Immunity Conditions …… 5-2

6 – Specifications

Glossary

DaqBoard/500 Series

989394

This product requires one of the

following Operating Systems:

Windows 2000

Windows XP

OMB-DAQBOARD-500 Series

Installation Guide

This guide tells how to complete the following steps for a successful installation.

Step 1 – Install Software …… page 2

Step 2 – Install Boards in Available PCI Bus-Slots …… page 3

Step 3 – Configure Boards ….. page 5

Step 4 – Test Hardware ….. page 6

Reference Note:

After you have completed the installation you should refer to the electronic documents that

were automatically installed onto your hard drive as a part of product support. The default

location is in the Programs group, which can be accessed from the Windows Desktop.

You should keep your DaqBoard’s serial number and your DaqView/500 authorization code (if applicable)

with this document. Space is provided below for recording up to 4 board numbers and their PCI bus-slot

locations. The board serial number and board type (500 or 505) is located on the solder-side of the board.

Board Identity on “Solder-Side” of the Board

Board Type

Serial Number

PCI Bus-Slot Location

(e.g. /500, /505)

Board 1

Board 2

Board 3

Board 4

The host PC can support up to four Boards.

DaqView/500 Authorization Code ____________________________

Customers who ordered DaqView/500 can find their authorization code on the authorization

code sheet located inside the sleeve of the install CD.

Customers who did not order DaqView/500 can run a 30-day free trial version, as discussed

elsewhere in the User’s Manual.

CAUTION

Take ESD precautions (packaging, proper handling, grounded wrist strap, etc.)

Use care to avoid touching board surfaces and onboard components. Only handle boards

by their edges (or ORBs, if applicable). Ensure boards do not come into contact with

foreign elements such as oils, water, and industrial particulate.

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1138-0940, rev 1.1

IG-1

Reference Notes:

Each DaqBoard/500 Series plugs into a PCI bus-slot. Consult your PC owner’s manual as needed.

Minimum System Requirements

Reference Note: Adobe PDF versions of user manuals will

automatically install onto your hard drive as a part of

product support. The default location is in the Programs

group, which can be accessed from the Windows Desktop.

Refer to the PDF documentation for details regarding both

hardware and software. Note that hardcopy versions of the

manuals can be ordered from the factory.

• PC system with Pentium^®3 Processor

• 500 MHz

• 128 M-byte RAM

• Windows 2000 or XP Operating System

Installation, A Pictorial Overview

Step 1 – Install Software

IMPORTANT: Software must be installed before installing hardware.

1. Remove previous version Daq drivers, if present.

You can do this through Microsoft’s Add/Remove Programs feature.

2. Place the Data Acquisition CD into the CD-ROM drive. Wait for PC to auto-run the CD. This may

take a few moments, depending on your PC. If the CD does not auto-run, use the Desktop’s

Start/Run/Browse feature and run the Setup.exe file.

3. After the intro-screen appears, follow the screen prompts.

Upon completing the software installation, continue with step 2, Install Boards in available

PCI Bus-slots.

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1138-0940, rev 1.1

Step 2 – Install Boards in available PCI Bus-slots

IMPORTANT: Software must be installed before installing hardware.

CAUTION

Turn off power to, and UNPLUG the host PC and externally connected equipment prior to

removing the PC’s cover and installing the DaqBoard. Electric shock or damage to equipment

can result even under low-voltage conditions.

Take ESD precautions (packaging, proper handling, grounded wrist strap, etc.)

Use care to avoid touching board surfaces and onboard components. Only handle boards by their

edges (or ORBs, if applicable). Ensure boards do not come into contact with foreign elements such

as oils, water, and industrial particulate.

IMPORTANT: Bus Mastering DMA must be Enabled.

For a DaqBoard/500 Series board to operate properly, Bus Mastering DMA must be Enabled on

the PCI slot [for which the board is to be installed]. Prior to installation, verify that your

computer is capable of performing Bus Mastering DMA for the applicable PCI slot. Note that

some computers have BIOS settings that enable [or disable] Bus Mastering DMA. If your

computer has this BIOS option, ensure that Bus Mastering DMA is Enabled on the appropriate

PCI slot.

Refer to your PC Owner's Manual for additional information regarding your PC and enabling

Bus Mastering DMA for PCI slots.

1. Turn off power to, and UNPLUG the host PC and externally connected equipment.

2. Remove the PC’s cover. Refer to your PC Owner’s Manual as needed.

3. Choose an available PCI bus-slot.

4. Carefully remove the DaqBoard from its anti-static protective bag. If you have not already done so,

write down the serial number of your board at this time.

5. Refer to the figure at the right. Remove the screw that

secures the blank adapter plate, which is associated with the

PCI slot you will be using. Refer to your PC Owner’s

Manual if needed.

6. Remove the blank adapter plate.

Removing a Blank Adapter Plate

1138-0940, rev 1.1

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DaqBoard/500 Series Installation Guide IG-3

7. Refer to the figure at the right. Align the groove in the

DaqBoard’s PCI edge-connector with the ridge of the

desired PCI slot, and with the PC’s corresponding rear-

panel slot.

8. Push the board firmly into the PCI slot. The board will

snap into position.

9. Secure the board by inserting the rear-panel adapter-plate

screw.

10. Using the previous steps, install additional boards into

available PCI bus-slots, if applicable to your application.

Installing a DaqBoard/500 Series Board

11. Replace the computer’s cover.

12. Plug in all cords and cables that were removed in step 1.

13. Apply power to, and start up the PC.

Note: At this point some PCs may prompt you to insert an

installation disk. While this is rare, if you do receive such a

prompt simply place the install CD-ROM into the disk drive

and follow additional screen prompts.

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1138-0940, rev 1.1

Step 3 – Configure Boards

DaqBoard/500 Series Boards have no jumpers or switches to set. Configuration is performed entirely

through software. Refer to the following figure and steps to complete the configuration. The numbers in

the figure correspond to the numbered steps.

1. Open the “Start” menu from the Windows desktop.

2. Select “Settings.”

3. Select “Control Panel.”

4. Double-click “Daq Configuration.” This opens the Daq Configuration window.

5. Double-click on the Device Inventory’s DaqBoard/500 Series icon. In the figure above the

DaqBoard/500 appears as “DaqBoard500_0.”

The DaqBoard’s Properties tab will appear (following figure).

Note: If the DaqBoard icon is not present, skip to the upcoming section, Using ‘Add Device.’

Accessing the DaqBoard/500 Properties Tab

6. Enter a “Device Name” in the text box, or use the default, e.g., DaqBoard500_0.

The Name is for identifying the specific DaqBoard, but actually refers to the PCI slot.

7. Verify that the “Device Type” shows the correct board, i.e., “DaqBoard/500 or

DaqBoard/505.” Other devices, if available can be viewed via the pull-down list.

8. Confirm that the DaqBoard’s text box shows a Bus #, Slot #, and Serial Number.

If this text box is empty, use its pull-down list and select the serial number that matches the

one for your board.

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DaqBoard/500 Series Installation Guide IG-5

Using “Add Device”

This method is for users who have accessed the Daq

Configuration control panel applet, but have no DaqBoard/500

Series device icon.

1. After accessing the Daq Configuration control panel applet,

click on the <Add Device> button (see figure, right). The

Select Device Type window will appear.

2. Using the Device Type’s pull-down list, select the

applicable board. In the example at the right

DaqBoard/500 is selected.

3. Click the <OK> button. The board’s Properties tab will

appear. The tab applies to all boards in the series.

At this point, complete steps 6 through 8 on page IG-5.

Using “Add Device”

Step 4 – Test Hardware

Use the following steps to test the DaqBoard. Note that these steps are continued from those listed under the

previous section, “Configure Board.”

1. Select the “Test Hardware” tab.

2. Click the <Resource Test> button.

3. After the test is complete, click <OK>.”

System capability is now tested for the DaqBoard and a list

of test results will appear.

Note: If you experience difficulties, please consult your user

documentation (included on your CD) before calling

for technical support.

Test Hardware Tab

(Condensed Screen Image)

At this point we are ready to connect signals. For DaqBoard/500 Series boards, connection is typically made via

a terminal board, such as the optional TB-100.

Reference Notes:

During software installation, Adobe^®PDF versions of user manuals are automatically installed onto

your hard drive as a part of product support. The default location is in the Programs group, which can

be accessed from the Windows Desktop. A copy of the Adobe Acrobat Reader^®is included on your

CD. The Reader provides a means of reading and printing the PDF documents. Note that hardcopy

versions of manuals can be ordered from the factory.

IG-6 DaqBoard/500 Series Installation Guide

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1138-0940, rev 1.1

Introduction

The DaqBoard/500 and DaqBoard/505 have 16 single-ended or 8 differential analog inputs multiplexed

to a 16-bit A/D converter with maximum throughput of 200 kHz, programmable gains of 1, 2, 4 or 8, one

counter input channel, two timer output channels, and 24 lines of digital I/O. In addition, DaqBoard/500

includes two clocked DACs.

The boards feature a DMA engine for optimum performance in supported Windows environments. Board

connections are terminated in a 68-pin “high density” SCSI III connector at the rear of the PC.

A digital calibration method is used for both analog-to-digital and digital-to-analog

conversions. Please contact the factory should you believe your board to be in need

of calibration.

Basic Information

16 Single-Ended or 8 Differential

Analog Inputs

Ranges

Unipolar

0 to10V

Bipolar

± 10V

0 to 5V

± 5V

0 to 2.5V

0 to 1.25V

± 2.5V

± 1.25V

16-bit

Resolution

200 kHz

A/D Sample Rate

Gains (Programmable)

x1, x2, x4, x8

2 Clocked DACs (DaqBoard/500 only)

D/A Outputs (16-Bit)*

Digital I/O

Counters (16-Bit)

Timers

TB-100 (optional)

Associated Terminal Board

Associated Cables

CA-G55:

CA-G56:

CA-G56-6:

68 Pin SCSI III Cable, 3 ft.

68 Pin SCSI III Cable, Shielded, 3 ft.

68 Pin SCSI III Cable, Shielded, 6 ft.

*D/A Outputs do not apply to DaqBoard/505.

DaqBoard/500 Series

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Introduction 1-1

Block Diagram

DaqBoard/500 Series Block Diagram

1-2

Introduction

947294

DaqBoard/500 Series User’s Manual

Board Features

Analog I/O

DaqBoard/500 Series boards support 16 single-ended or 8 differential analog inputs multiplexed to a 16-bit

A/D converter. The input multiplexer is supported by a 176 element channel gain RAM which allows the

board to select gain on a per channel basis and to access channels in any order. The 16-bit A/D has a

maximum throughput of 200 kHz. An A/D Pacer clock is provided to allow sampling rates from 0.0009 Hz

to 200 kHz. The DaqBoard/500 includes two DACs for analog output.*

Digital I/O

DaqBoard/500 Series boards have 24 lines of TTL level digital I/O programmable in three 8-bit ports as

either inputs or outputs. All 24 lines are brought out via the main 68-pin SCSI III connector.

Counter 1

Counter 1 (CNTR1) can provide either cumulative or incremental counting capabilities. The counter is

capable of counting 5 V LSTTL rising edges to a maximum count of 131071 decimal.

Timer 0 and Timer 1

Timer0 (TMR0) and Timer1 (TMR1) provide a 50% duty cycle square wave 5 V LSTTL output with an

output frequency range of 7.7 Hz to 500 kHz. The Timer’s output frequency is based on a 1 MHz

oscillation with a divisor of 1 to 65536 decimal.

PCI Interface

DaqBoard/500 Series boards communicate to the PCI bus through an interface controller. The boards are

fully plug-and-play and have no switches, potentiometers, or jumpers. The boards feature digitally

calibrated A/D and D/A’s, and plug-and-play compatibility to provide automatic integration into the PC’s

configuration when first installed.

The PCI interface provides access to all on-board registers for software configuration of all on-board

functions. For maximum performance, the boards feature a 32-bit bus-mastering DMA engine on the

ADC and DAC hardware to provide high-speed transfers between the board and system memory.

DMA Engine

Interrupt latency on the PCI bus can be extremely inefficient for high-speed data acquisition. For this

reason, DaqBoard/500 and DaqBoard/505 each use an onboard DMA engine. The engine [analogous to

the older ISA type DMA controller] supports scatter/gather (buffer chaining) with a pair of chain address

registers. These registers point to system memory for use in the buffered transfer.

The DMA controller is loaded with the previously allocated physical addresses of the buffers and only

generates interrupt requests when the current transfer buffer has been completed. This reduces the burden

of CPU interrupt intervention.

Both analog input and analog output channels* have on-board DMA engine support for high-speed data

transfers. The two analog output channels have individual DMA engines and clocking methods available.

The DAC1 clocking source may be set to the DAC0 clocking source to allow simultaneous DAC transfers.

All PCI bus transfers are 32-bit operations. Analog input and analog output transfers are each

independently software selectable to allow either 16-bit or 32-bit data transfers. An immediate

improvement of twice the memory bandwidth can be achieved by transferring two analog input data points

[or two analog output data points] into memory as a single 32-bit PCI transfer.

* The DAC analog output channels apply to DaqBoard/500 only.

DaqBoard/500 Series User’s Manual

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Daq Systems and Device Overviews 1-3

1-4

Introduction

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DaqBoard/500 Series User’s Manual

Connections and Pinouts

Overview …… 2-1

68-Pin SCSI Type III Connector …… 2-2

Signal Definitions …… 2-3

TB-100 Terminal Connector Option …… 2-6

External Connections …… 2-7

WARNING

Always turn the computer power OFF and unplug it before connecting or discon-

necting a screw terminal panel or a cable to the PCI card. Failure to do so could

result in electric shock, or equipment damage.

CAUTION

The discharge of static electricity can damage some electronic components.

Semiconductor devices are especially susceptible to ESD damage. You should

always handle components carefully, and you should never touch connector pins or

circuit components unless you are following ESD guidelines in an appropriate ESD

controlled area. Such guidelines include the use of properly grounded mats and

wrist straps, ESD bags and cartons, and related procedures.

Overview

DaqBoard/500 Series boards communicate [external from the host PC] through a 68-pin SCSI III

connector. An optional TB-100 terminal board offers convenient screw-terminal connections for all

signal I/O.

Pinouts for both the DaqBoard/500 Series connector and the TB-100 follow.

The TB-100 option can be easily connected to a DaqBoard/500 or DaqBoard/505 via one of three

68-conductor cables. These are: CA-G55, a 3 ft. unshielded cable; CA-G56, a 3 ft. shielded cable;

and CA-G56-6, a 6 ft. shielded cable.

DaqBoard/500 Series User’s Manual

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Connections & Pinouts 2-1

68-Pin SCSI Type III Pinout

Standard 68-Pin SCSCI Type III, Socket (Female) Connector with Orb

Signal

Description / Comments

DACLKIN/

CNTR1

See Pin 39 [Note

External DAC Clock In or

Counter 1. Rising or Falling

Edge Sensitive.

DGND

Digital Ground

ADCLKIN

External ADC Clock In

Digital Ground

See Pin 5 [Note 3]

ADTRGOUT/

TMR0

Internal ADC Trigger Output/

Timer 0 Clock Output

ADCLKOUT/

TMR1

Internal ADC Clock Output/

Timer 1 Clock Output

Reserved

DATRGIN

DAC0 External Gate

(Level Controlled), or

External Trigger (Edge Active).

ADCLKIN

See Pin 2 [Note 3]

External ADC Clock In

DACLKIN/

CNTR1

See Pin 1 [Note 4]

External DAC Clock In, or

Counter 1. Rising or Falling

Edge Sensitive.

ADTRGIN

ADC Trigger

DGND

Digital Ground

TTL Level Digital I/O Ch. C6

TTL Level Digital I/O Ch. C7

TTL Level Digital I/O Ch. C4

TTL Level Digital I/O Ch. C2

TTL Level Digital I/O Ch. C0

TTL Level Digital I/O Ch. B6

TTL Level Digital I/O Ch. B4

TTL Level Digital I/O Ch. B2

TTL Level Digital I/O Ch. B0

TTL Level Digital I/O Ch. A6

TTL Level Digital I/O Ch. A4

TTL Level Digital I/O Ch. A2

TTL Level Digital I/O Ch. A0

Power

TTL Level Digital I/O Ch. C5

TTL Level Digital I/O Ch. C3

TTL Level Digital I/O Ch. C1

TTL Level Digital I/O Ch. B7

TTL Level Digital I/O Ch. B5

TTL Level Digital I/O Ch. B3

TTL Level Digital I/O Ch. B1

TTL Level Digital I/O Ch. A7

TTL Level Digital I/O Ch. A5

TTL Level Digital I/O Ch. A3

TTL Level Digital I/O Ch. A1

Digital Ground

DGND

+5 VDC

ARET 1 [Note 2]

AOUT 1 [Note 2]

AOUT 0 [Note 2]

Analog Return 1

ARET 0 [Note 2]

AGND

Analog Return 0

Analog Ground

DAC1, Analog Out 1

DAC0, Analog Out 0

AGND

For Single Ended

For Differential

For Single Ended

For Differential

ANALOG INPUTS

AIN 15

AGND

AIN 6

AIN 13

AGND

AIN 4

AGND

AIN 3

AIN 10

AGND

AIN 1

AIN 8

Ch. 15

Analog Ground

Ch. 6

Ch. 7 Lo (-)

Analog Ground

Ch. 3 Hi (+)

Ch. 6 Lo (-)

AIN 7

AIN 14

AGND

AIN 5

AIN 12

SGND

AIN 11

AGND

AIN 2

AIN 9

AGND

AIN 0

Ch. 7

Ch. 14

Ch. 3 Lo (-)

Ch. 7 Hi (+)

Analog Ground

Ch. 2 Lo (-)

Analog Ground

Ch. 5

Ch. 13

Analog Ground

Ch. 4

Analog Ground

Ch. 2 Hi (+)

Analog Ground

Ch. 1 Lo (-)

Ch. 12

Ch. 6 Hi (+)

Signal Ground

Ch. 5 Lo (-)

Signal Ground

Ch. 11

Analog Ground

Ch. 3

Analog Ground

Ch. 2

Analog Ground

Ch. 1 Hi (+)

Ch. 4 Lo (-)

Ch. 10

Ch. 5 Hi (+)

Analog Ground

Ch. 0 Lo (-)

Analog Ground

Ch. 1

Ch. 9

Analog Ground

Ch. 0

Analog Ground

Ch. 0 Hi (+)

Ch. 8

Ch. 4 Hi (+)

Notes to this table appear on the following page.

2-2 Connections & Pinouts

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DaqBoard/500 Series User’s Manual

SCSI III Pinout Notes (Apply to the preceding table.)

Note 1: AOUT 1 (DAC1) applies to DaqBoard/500 only. The clock source of the secondary DAC1 channel may

be software command, DAC1 Pacer clock, or Channel 0 clock source. Likewise, the return line (ARET 1)

only applies to the DaqBoard/500.

Note 2: AOUT 0 (DAC0) applies to DaqBoard/500 only. The clock source of the primary DAC0 channel may be

software command, DAC0 Pacer clock, or an external event (DACLKIN). Likewise, the return line

(ARET 0) only applies to the DaqBoard/500.

Note 3: Pins 2 and 5 (ADCLKIN) are redundant signal connections. Only one of these pins is to be used at time.

Note 4: Pins 1 and 39 (DACLKIN/CNTR1) are redundant signal connections. Only one of these pins is to be used

at time. Use must be for either External DAC Clock In or Counter 1.

Signal Definitions

The following is a description of each of the signals available at the 68-pin SCSCI Type III connector,

as indicated in the preceding pinout.

Analog Input Channels

These channel signals are over-voltage protected to 20 V above or below the ±15 V power supply. The channel

inputs can withstand input voltages of up to ±20 volts when the power to the system is off.

Differential Channels, Pin Reference

HI (+) Pin #

LO (-) Pin #

Ch 0

Ch 1

Ch 2

Ch 3

Ch 4

Ch 5

Ch 6

Ch 7

Analog Outputs (applicable to DaqBoard/500 only)

AOUT 0, AOUT 1 - These signals are the voltage output signals from DAC0 and DAC1, respectively.

ARET 0, ARET 1 - These signals are the return lines for the voltage outputs. These inputs are essentially

tied to AGND (Analog Ground) on the board.

Digital I/O Lines (24 total)

A total of 24 digital I/O lines exist in three groups of eight. The groups are:

A0 through A7

B0 through B7

C0 through C7

Each group of eight TTL level digital control lines (A, B, and C) is configurable as 8 bit input or output.

DaqBoard/500 Series User’s Manual

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Connections & Pinouts 2-3

Clocks, Triggers, Counters, and Timers

ADCLKIN – Uses pin #2 or pin #5. ADCLKIN is the ADC External Pacer Clock Input. This input

recognizes TTL level signals and is edge sensitive. The active edge is selectable as either rising or falling.

The ADCLKIN signal connection can be made at either pin #2 or pin #5,

but NOT both at the same time.

ADCLKOUT/TMR1 – Uses pin #37 for one of the following two functions.

ADCLKOUT is the ADC’s External Clock Output. Each time the ADC is clocked from any of the

available clocking sources the ADCLKOUT signal pulses high for a period of 1micro-second. This output

can be used to synchronize multiple A/D converters on different PCI cards allowing simultaneous A/D

conversions by connecting the ADCLKOUT to the ADCLKIN input of each PCI card.

TMR1 is an LSTTL output signal that provides a second clock source with characteristics identical to

TIMER0. The connection makes use of a separate [and independent] TMR1 internal software pacer clock.

The ADCLKOUT signal line is shared with the on-board TMR1 Clock Output signal, pin #37

on the 68-pin SCSCI III connector. Only one output signal may be generated to the ADCLKOUT

/ TMR1 pin (or associated terminal) at any given time. TIMER 1 is automatically disabled in

hardware when the ADCLKOUT is enabled.

ADTRGIN – Uses pin #6. ADTRGIN is the External ADC Trigger/Gate Input. This input recognizes

TTL level signals and is used to start or stop the ADC acquisition process. The input is selectable as either

rising/falling edge or active high/low level sensitivity.

ADTRGOUT/TMR0 – Uses pin #3 for one of the following two functions.

ADTRGOUT is the internal ADC’s Trigger Output. Each time the ADC is triggered from any of the

available triggering sources the ADTRGOUT signal pulses high for a period of 1 µs. This output can be

used to synchronize multiple A/D converters on different cards allowing simultaneous A/D triggering by

connecting the ADTRGOUT to the ADTRGIN input of each PCI card.

The TMR0 LSTTL output signal provides a 50% duty cycle square wave derived from an independent

TMR0 internal software pacer clock. The pacer clock period can be set from 1 us to 65535 us, producing

an output clock rate from 500 KHz down to approximately 7.6295 Hz.

The ADTRGOUT signal line is shared with the on-board TIMER 0 Clock Output signal

(TMR0) pin #3 on the 68-pin SCSI III connector. Therefore only one output signal may be

generated to the ADTRGOUT / TMR0 terminal at any given time. The TIMER 0 is

automatically disabled in hardware when the ADTRGOUT is enabled.

2-4 Connections & Pinouts

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DaqBoard/500 Series User’s Manual

DACLKIN/CNTR1 – Uses pin # 1 or pin # 39 for one of the following two functions.

DACLKIN is the External DAC Pacer clock input. This input recognizes TTL level signals and is edge

sensitive. The active edge is selectable as either rising or falling.

CNTR1 is the general purpose Counter 1 clock input. This input recognizes TTL level signals and is rising

edge sensitive. The input clock rate cannot exceed 500 kHz. The clock source must provide a minimum

pulse width of 100 ns.

The DACLKIN signal line is shared with the on-board COUNTER 1 Clock Input signal

(CNTR1). This is true for both pin #1 and pin # 39 on the 68-pin SCSCI III connector.

Only one input signal may be connected to the DACLKIN/CNTR1 pin (or associated

terminal) at any given time; and the signal can only be connected to pin # 1 or pin # 39,

NOT both.

Attempting to use COUNTER 1 when the DAC Pacer Clock Source is set for an External

Clock Input would not be possible unless COUNTER 1 was being used to count the DAC’s

External Clock Input signal.

DATRGIN – Uses pin # 38. DATGRIN is the External DAC0 Trigger/Gate Input. This input recognizes

TTL level signals and is used to start or stop the DAC acquisition process. The input is selectable as either

rising/falling active edge or active high/low level sensitivity.

Ground Lines

SGND - This signal is the reference ground used for A/D conversions. If you are measuring from a fully

floating source in differential mode, it would be beneficial to tie one of the channel inputs to this point.

This signal should not be used for sinking large amounts of current. This signal also acts as the common

reference line when the board is configured for single-ended inputs.

AGND - This signal can be used just like SGND. In some environments AGND can also be used for tying

cable shields to reduce analog noise.

DGND - This signal is the +5 V power return line. It is generally noisier than AGND and is a good logic

low reference point.

Power Line

+5 V This signal is sourced directly from the PCI Bus. These lines are fused @ 1 Amp.

DaqBoard/500 Series User’s Manual

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Connections & Pinouts 2-5

TB-100 Terminal Connector Option

The TB-100 Terminal Connector option can be used to connect all signal I/O lines that

are associated with a DaqBoard/500 or /505. TB-100 can connect to either board’s 68-

pin SCSI III connector via a 3 ft., 68-conductor cable (CA-55 or the shielded CA-56); or

via a 6 ft. shield cable (CA-56-6).

TB-100 Pinout

The “Pin” column refers to the pin no. on the 68-Pin SCSI III Connector.

Screw Terminals for TB2 Side

Screw Terminals for TB1 Side

+5V

GND

Vcc (+5 VDC)

ACH0

ACH8

Analog Input Channel 0

Analog Input Channel 8

Note 1

Digital Common

Digital I/O Line A0

Digital I/O Line A1

AGND

ACH1

Analog Common

Note 2

Analog Input Channel 1

Digital I/O Line A2

ACH9

Analog Input Channel 9

Digital I/O Line A3

Digital I/O Line A4

AGND

ACH2

Analog Common

Note 2

Analog Input Channel 2

Digital I/O Line A5

ACH10

Analog Input Channel 10

Digital I/O Line A6

Digital I/O Line A7

AGND

ACH3

Analog Common

Note 2

Analog Input Channel 3

Digital I/O Line B0

ACH11

Analog Input Channel 11

Digital I/O Line B1

Digital I/O Line B2

AGND

ACH4

Analog Common

Note 2

Analog Input Channel 4

Digital I/O Line B3

ACH12

Analog Input Channel 12

Digital I/O Line B4

Digital I/O Line B5

AGND

ACH5

Analog Common

Note 2

Analog Input Channel 5

Digital I/O Line B6

ACH13

Analog Input Channel 13

Digital I/O Line B7

Digital I/O Line C0

AGND

ACH6

Analog Common

Note 2

Analog Input Channel 6

Digital I/O Line C1

ACH14

Analog Input Channel 14

Digital I/O Line C2

Digital I/O Line C3

AGND

ACH7

Analog Common

Note 2

Analog Input Channel 7

Digital I/O Line C4

Digital I/O Line C5

Digital I/O Line C6

Digital I/O Line C7

ACH15

Analog Input Channel 15

XDAC3

SGND

Analog Output, DAC3

Low Level Sense Common

POSREF

XDAC2

+5 VDC Positive Reference

Analog Output, DAC2

TTLTRG

ADTRGIN – External ADC

Trigger/Gate Input

Digital Common

Note 1

GND

NEGREF

AGND

- 5 VDC Negative Reference

Analog Common

CNT0

ADCLKIN (ADC Clock)

Note 2

Note 4

CNT1

DACLKIN (DAC Clock),

or CNTR1 (Counter 1)

----- Reserved -----

XDAC0

AGND

Analog Output, DAC0

Analog Common

Note 5

CNT2

CNT3

TMR0

Note 2

DATRGIN (DAC trigger/gate input)

XDAC1

AGND

Analog Output, DAC1

Analog Common

ADTRGOUT (ADC Trigger Output),

or TMR0 (Timer Output 0)

Note 2

TMR1

ADCLKOUT (ADC Pacer Clock),

or TMR1 (Timer Output 1)

XAPCR

ADCLKIN (A/D Pacer Clock)

Note 4

XDPCR

GND

DACLKIN (DAC Pacer Clock),

or CNTR1 (Counter 1)

Digital Common

GND

Digital Common

Earth Ground

Note 1

Note 5

Note 1

EGND

N/A

Notes, including a table for Differential Analog Input, appear on the following page.

2-6 Connections & Pinouts

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DaqBoard/500 Series User’s Manual

TB-100 Notes (Apply to the preceding table.)

Note 1: Digital Common Pins on the SCSI III connector are: 35, 36, and 40.

Note 2: Analog Common Pins on the SCSI III connector are: 24, 27, 29, 32, 59, 64, and 67.

Note 3: References are not provided for DaqBoard/500 Series devices. For this reason POSREF and NEGREF are

tied to the Analog Return signals. POSREF connects to ARET1 (Pin 20 on the DaqBoard) and NEGREF

connects to ARET0 (Pin 54 on the DaqBoard).

Note 4: In regard to DaqBoard/500 and DaqBoard/505: TB-100 connectors labeled “XAPCR” and “CNT0” are both

used for ADCLKIN (ADC Clock) and therefore cannot be used at the same time. The XAPCR connector is

assigned to SCSI-68 connector pin 2. The TB-100 connector labeled “CNT0” [used for ADCLKIN] is

assigned to SCSI-68 connector pin 5. Note that DaqBoard/500 Series devices have only one counter

implemented, i.e., Counter 1. Counter 0 is not implemented.

Note 5: In regard to DaqBoard/500 and DaqBoard/505: TB-100 connectors labeled “CNT1” and “XDPCR” are the

same dual-function signal (DACKLIN/CNTR1) and therefore cannot be independently driven. CNT1 is

assigned to SCSI-68 connector pin 39. XDPCR is assigned to SCSI-68 connector pin 1.

Note 6: The following table provides screw terminal reference for connecting analog channels differentially, as

opposed to single-ended.

Differential Channels,

Screw Terminal Reference

HI (+)

ACH0

ACH2

ACH4

ACH6

ACH8

ACH10

ACH12

ACH14

LO (-)

ACH1

ACH3

ACH5

ACH7

ACH9

ACH11

ACH13

ACH15

Ch 0

Ch 1

Ch 2

Ch 3

Ch 4

Ch 5

Ch 6

Ch 7

External Connections

WARNING

Always turn the computer power OFF and unplug it before connecting or discon-

necting a screw terminal panel or a cable to the PCI card. Failure to do so could

result in electric shock, or equipment damage.

The DaqBoard/500 Series boards bring out +5 V to the main I/O connector [J1]. This power line is fused to

protect the boards. Connecting or disconnecting cables or screw terminal panels (as well as any user

connections to the power line) may blow a fuse, or worse, cause damage to the board. If you are getting

incorrect data readings check that the fuse is not blown.

The power line fuse for the +5V to J1 is designated as F3. It is a “Pico Fuse” with a 1.0A, 125V rating.

Connecting User Wiring

Incorrect connection of user wiring is one of the most common problems experienced by users of data

acquisition boards. To ensure proper results, you must first determine what type of signal source you are

measuring (Ground Referenced Source or Floating Source), and then choose the appropriate input

configuration on your data acquisition board (Differential or Single-Ended).

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Connections & Pinouts 2-7

Signal Types

Floating Sources

A Floating Source is a signal that has no connection to the building's power ground. Examples of Floating

Sources are thermocouples, batteries and battery powered devices, and signals from optically isolated

devices. When connecting Floating Sources to a data acquisition board, the ground reference of the signal

must be tied to the analog ground (AGND) in order to establish a common reference point.

Ground Referenced Sources

A Ground Referenced Source is one that is connected to the same common ground as the host PC, and

therefore has the same ground as the data acquisition boards. An example is equipment that plugs into the

same building power source as the host PC.

Due to differences in a building's power system, the Ground Referenced Source and

the data acquisition board's ground may be at different voltage levels. This difference

is referred to as a Common Mode Voltage. Common Mode Voltage can be eliminated

by using Differential (DI) input configurations on the data acquisition board.

Choosing A/D Input Configuration

Once you have determined what type of input signal source you have, and the voltage level, you then need to select

the proper input configuration on your data acquisition board.

Single-Ended

Applications with a Floating Source are typically wired to a data acquisition board configured for Single-Ended

(SE) configuration. Since only one wire from each input signal is connected to a multiplexed input of the A/D, the

Single-Ended configuration provides a larger number of inputs per board than Differential (see below)

configuration. Grounded Signal Sources can be wired in Single-Ended configuration only when signal leads are less

than 12 feet AND when all signals share a common ground (the signals must be local to one another).

With the Single-Ended configuration, the input signals are tied to the Channel Hi side of an analog input, and all

signal low sides are tied to the SGND ground on the data acquisition board.

Single-Ended configuration should only be used when:

Channel-to-channel isolation is not required

Ground isolation is not required

Signal leads are less than 12 feet

Of the two possible input configurations, Single-Ended offers the least amount of noise rejection. Because of this,

Low Level signals should only be wired in Single-Ended configuration when you are certain that there is little or no

noise being introduced to the signal from the system, or the environment.

The following figure depicts proper wiring for Single-Ended configuration.

Single-Ended Configuration

Not recommended for Low Level Signals

2-8 Connections & Pinouts

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DaqBoard/500 Series User’s Manual

Differential (DIFF)

In installations where each Ground Referenced Source signal has a local ground [signals located remote from one

another] the Differential configuration must be used. Since the Differential configuration only responds to the

difference in a signal between its high and low voltages, any Common Mode Voltage will be cancelled out. In

addition, Differential configuration provides the best performance of the two configurations in an electrically noisy

environment.

The Differential configuration should be used when any of the following exist:

Each source has a local ground

Signal sources are remote from one another

Common Mode Voltage exists

Common Mode Noise exists

Signal sources are low-level (less than 1 V)

Signal source leads are longer that 12 feet

Differential for Grounded Signal Sources

The following figure is an example of a Differential Configuration for grounded signal sources.

Differential Configuration for Grounded Sources

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Connections & Pinouts 2-9

Differential for Floating Signal Sources

Floating Signal Sources are typically wired to a data acquisition board in Single-Ended configuration. However,

when the Floating Source signal leads pass through an electrically noisy environment, Differential configuration

will give the best performance.

When wiring Floating Signal sources in Differential configuration, a resistor can be connected from the low side of

the sources to analog ground (AGND). These resistors create a return path to AGND for the bias currents of the

instrumentation amplifier and can reduce the common mode noise.

All DaqBoard/500 Series boards provide 10 MΩ of resistance between each analog input and ground.

In most cases the 10 MΩ of resistance is sufficient for the return of bias current.

Resistor Connection Scenarios

If the Input Signal is DC Coupled

Use a Resistor Value from: 10 KΩ to 100 KΩ

Connect the resistor between:

If the Input Signal is AC Coupled

Use resistors with values from: 10 KΩ to 100 KΩ

(a) Connect one resistor between:

Input Signal Return (ARET) and AGND

Input Signal High and Input Signal Low

(b) Connect a second resistor between:

Input Signal Low and AGND

Making resistor connections as indicated will significantly increase the load on the measurement source, possibly

reducing the measured voltage. A trial and error approach may be required when trying to reduce common mode

noise.

The following figure shows how to properly wire a Floating Source Signal in Differential configuration.

Differential Configuration for Floating Sources

2-10 Connections & Pinouts

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DaqBoard/500 Series User’s Manual

Configuration

Configuration through Software

DaqBoard/500 Series boards have no hardware jumpers or switches. All data-acquisition settings such

as analog input, data collection rates, input voltage range, and operating modes are configured through

application software. A DaqView software driver provides an application level software interface to

Windows NT, 2000, and XP. Software packages such as LabVIEW can also be used. These packages

configure and collect, or output, acquisition data in a GUI based interface.

Analog Input Configuration

The analog inputs are impedance buffered and drive a differential gain amplifier that can be referenced in a

number of ways allowing for Single-Ended or Differential programmable input configurations.

A “1 to 176” element channel configuration RAM is provided to allow each ADC channel to be set with a

different Gain, Range, Thermocouple Type and Input Configuration selection combination.

ADC Ranges

The analog inputs may be configured for either ±10 V bipolar or 0 to10 V unipolar operation. The input

range is programmable on a channel by channel basis in a 176-element channel configuration RAM. Note

that the range selection also applies to expansion channels.

The programmable gain circuitry must also be taken into account in defining the usable error free input

range. The boards provide a wide range of programmable ranges and resolutions. The following tables

indicate the maximum resolution under different conditions. Note that resolution is not accuracy.

Resolution defines the minimum definable voltage increment. Absolute DC accuracy and relative accuracy

defines exactly how close the reading will be to the actual voltage input.

ADC INPUT

DaqBoard/500 Series Range Resolution

Bipolar

Programmable

Gain

Full Scale

Range

Microvolt

Resolution

± 10.00 V

± 5.00 V

± 2.50 V

± 1.25 V

310.140 µV/bit

155.070 µV/bit

77.535 µV/bit

38.768 µV/bit

Unipolar

Programmable

Gain

Full Scale

Range

Microvolt

Resolution

0 to 10.00 V

0 to 5.00 V

0 to 2.50 V

0 to 1.25 V

155.070 µV/bit

77.535 µV/bit

38.768 µV/bit

19.384 µV/bit

DaqBoard/500 Series

879095

Configuration 3-1

DAC Ranges

The output range of the DaqBoard/500 DACs [DAC0 and DAC1] can be independently set to either

±10 V, or 0 to 10 V.

The following table indicates the maximum resolution for each range. Note that resolution is not accuracy.

Resolution defines the minimum definable voltage increment. Absolute DC accuracy and relative accuracy

define exactly how close the actual voltage output will be to the expected output.

DAC OUTPUT

DaqBoard/500 DAC Range Resolution

Range

Configuration

Full Scale

Range

Microvolt

Resolution

BIPOLAR

± 10.00 V

305.600 µV/bit

UNIPOLAR

0 to 10.00 V

152.800 µV/bit

3-2 Configuration

879095

DaqBoard/500 Series

Software and Board Operation

Overview …… 4-1

Out-of-the-Box^TMSoftware …… 4-1

Drivers for Third-party, Icon-driven Software …… 4-2

DaqCOM Driver …… 4-2

Theory of Operation …… 4-3

Overview

DaqBoard/500 Series boards have several software options. Three types of software are available:

Out-of the-box graphical programs, e.g., DaqView, ViewXL, and post acquisition data

analysis programs such as eZ-PostView, eZ-TimeView, and eZ-FrequencyView.

drivers for third-party, icon-driven software such as LabVIEW.

various language drivers to aid custom programming using API; includes

DaqCOM^TMActiveX/COM support.

Out-of-theBox^TMSoftware

Out-of-the-Box programs are convenient for fill-in-the-blank applications that do not require programming

for basic data acquisition and display:

DaqView is a Windows-based program for basic set-up and data acquisition. DaqView lets you

select desired channels, gains, and a host of other parameters with a click of a mouse. DaqView

lets you stream data to disk and display data in numerical or graphical formats.

ViewXL allows you to interface directly with Microsoft Excel to enhance data handling and

display. Within Excel you have a full-featured Daq control panel and all the data display

capabilities of Excel.

eZ-PostView provides a simple method of graphically viewing acquired data. Up to 8 windows

can be displayed on one screen, with up to 16 channels overlaid on each window. eZ-PostView

makes it simple to visually inspect acquired waveforms from multiple channels within seconds of

acquiring the data. Documentation, in Adobe PDF format, is provided on the CD. Refer to the

PostAcquisition Analysis.PDF.

eZ-TimeView & eZ-FrequencyView

eZ-TimeView and eZ-FrequencyView are optional post-acquisition analysis packages, which are

related to eZ-PostView, but include more features. eZ-TimeView is targeted at time-domain

analysis, including min/max, peak-peak, mean, RMS, plus a wide variety of plotting and

waveform viewing capabilities. eZ-FrequencyView is targeted at post-acquisition frequency-

domain analysis, including FFT’s, octave analysis, plus dozens of other analysis features.

Documentation, in Adobe PDF format, is provided on the CD. Refer to the PostAcquisition

Analysis.PDF.

The Daq Configuration control panel allows for interface configuration, testing, and

troubleshooting.

DaqView can only be used with one DaqBoard at a time.

LabVIEW can be used with multiple boards.

For multiple board use (via custom programming) refer to the Using Multiple Devices

section of the Programmer’s Manual or to DaqCOM documentation.

DaqBoard/500 Series

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Software and Board Operation 4-1

Reference Notes:

The software documents: DaqView, ViewXL, and Post Acquisition Data Analysis User’s

Guide, are available in PDF version.

During software installation, Adobe^®PDF versions of user manuals will automatically

install onto your hard drive as a part of product support. The default location is in the

Programs group, which can be accessed from the Windows Desktop. Refer to the PDF

documentation for details regarding both hardware and software.

Note that the PDF documents can be read directly from the CD by using the <View PDFs>

button located on the opening install screen.

A copy of the Adobe Acrobat Reader^®is included on your CD. The Reader provides

a means of reading and printing the PDF documents. Note that hardcopy versions of the

manuals can be ordered from the factory.

Drivers for Third-party, Icon-driven Software

DaqView can only be used with one DaqBoard at a time.

LabVIEW can be used with multiple boards.

For multiple board use (via custom programming) refer to the Using Multiple Devices

section of the Programmer’s Manual or to DaqCOM documentation.

LabVIEW®

The DaqBoard/500 Series boards are fully supported by our data acquisition VIs for LabVIEW and include

engineering data conversion, data display and logging capabilities.

DaqCOM Driver

The DaqCOM™ suite of programming allows applications developers to rapidly develop and deploy

custom systems by leveraging COM (Component Object Model) technology. DaqCOM does this by

providing a powerful easy-to-use interface to most programming languages including, Visual Basic®,

VBA, C++, and J++. In addition, DaqCOM supports the new Windows.NET architecture and includes

examples for VisualBasic.NET and C++. Support for VisualStudio.NET is accomplished via the

COMInterop feature within VisualStudio.NET.

4-2 Software and Board Operation

988994

DaqBoard/500 Series

Theory of Operation

Process Definitions

In order to best understand how to operate the various board functions, it is important to first understand the

language that will be used to describe the board processes. The following is a list of pertinent terms and definitions

used in this document.

ADC Analog to Digital Converter, also referred to as A/D. This is the circuitry that samples the voltage present at

one of the inputs and translates that reading to a number that is representative of the input voltage. The number

supplied by the ADC is referred to as the ADC DATA or RAW DATA and its units are bits or binary digits.

DAC Digital to Analog Converter, also referred to as D/A. This is the circuitry that translates a binary data word

to a specific voltage level. The two DACs on the DaqBoard/500 are specified for DC accuracy. The DACs can be

clocked and triggered. The DAC outputs are updated as soon as they receive new data.

Note: DaqBoard/505 has no DACs.

ADC Channel One of 16 analog input channels (see ADC).

ADC [Raw] Data This is the unscaled number returned by the ADC. It will be in the range of 0 to +65536,

regardless of whether the data coding is for unipolar or bipolar inputs. The number is typically multiplied by a scale

factor to convert it to useful engineering units. For example: the bipolar ±10 V input uses a scale factor of

.005 V/bit. An ADC reading of +1000, when multiplied by .005 V, results in +5.000 V. Similarly, the 16-bit scale

factor for the ±10 V scale is .000130140 V/bit.

DAC [Raw] Data This is the unscaled number sent to each DAC channel. It will be in the range of 0 to +65536,

regardless of whether the data coding is for unipolar or bipolar inputs. The number is typically multiplied by a scale

factor to convert it to useful engineering units. For example: An input in the range of 0 to 10 V uses a scale factor of

0.000152800V/bit. A DAC DATA value of 32723, when multiplied by 0.00015280, results in 5.000044 V at the

DAC output line.

ADC Conversion This is the process of sampling a single input or transducer’s voltage and generating a

representative data value.

DAC Conversion This is the process of outputting a single voltage generated from representative data value.

ADC Acquisition This term refers to a series of A/D conversions. This series may consist of sampling a single

channel several times or sampling several channels sequentially one or more times. An acquisition has a clearly

defined Starting point and Ending point. Thus an acquisition may be STARTED and STOPPED.

DAC Acquisition This term is used to refer to a series of D/A conversions. This series may consist of outputting

a single DAC channel several times or outputting both channels simultaneously one or more times. An acquisition

has a clearly defined Starting point and Ending point. Thus an acquisition may be STARTED and STOPPED.

ADC and DAC Clock This is the signal or impetus that initiates an A/D or D/A conversion. To CLOCK the ADC

or DAC is to start an A/D conversion. The term clock is used for this process because typically a clock signal

consists of a series of pulses that are periodic or evenly timed. If the conversions are evenly spaced it is then

possible to digitally reconstruct the input waveform without distorting its component frequencies.

ADC and DAC PACER Clock This is a timed periodic signal that may either directly clock the ADC/DAC or

initiate a burst of ADC conversions. Thus the PACER clock is exclusive to both the ADC and DAC channels.

DaqBoard/500 Series

988994

Software and Board Operation 4-3

ADC and DAC Trigger This is the signal or impetus that initiates or terminates an Acquisition. Essentially the

Trigger Starts or Stops the ADC or DAC PACER Clock.

ADC Channel Configuration RAM This is the term used for the ADC’s Channel, Gain, Range, and Input

Configuration lookup table. The length of this table can be anywhere from 1 element to 176 elements. When an

ACQUISITION is in process, the board will sequentially go through this list to determine the channel and gain

setting for the next conversion. Thus, channels may be sampled in any order and at any gain. Note, however, that for

maximum performance, it is recommended that channels with like gains be grouped together in the sample

sequence.

ADC and DAC DMA Short for Direct Memory Access, DMA is the most self-sufficient of the Acquisition

Modes available over the PCI bus. In this mode, data from each conversion is automatically transferred directly

from the board to [or from] a pre-specified block of system memory. DMA allows the acquisition process to run in

the background with virtually no software overhead.

Clocking the ADC

The source of the ADC clock can be a Pacer Clock or an External Event (ADCLKIN).

ADC Pacer Clocking

A series of A/D conversions may be controlled by the on-board pacer clock. This timer can be programmed to

generate a periodic clock rate up to the ADC’s maximum rate or as slow as 4 samples per hour.

ADC External Event Clocking

Conversions may also be caused by an external event. ADCLKIN is an edge sensitive input that can be programmed

to cause conversions. The ADCLKIN is selectable as either rising or falling edge sensitive. Once an ADC clock is

received, the Analog input is immediately sampled. Converted data will become available within 5 microseconds

(max). Any attempt to clock the ADC while an A/D conversion is currently running will result in a Clock Error.

ADC Maximum Clock Rate

The maximum rate which the ADC should be clocked and retain optimal accuracy will vary depending on several

factors. These include ADC resolution (16-bits), gain setting, and sampling mode.

DaqBoard/500 Series boards use16-bit ADC chips. The chips sample at rates up to 200 kilo-samples per second.

These limits may not be exceeded. If the sample clock runs faster some of the clock pulses will be ignored by the

circuitry, and a clock error will be generated.

The second factor involves the front-end circuitry. The bandwidth of the front-end will vary depending on the gain

setting (and the required resolution). The bandwidth will limit the maximum signal frequency the board can pass.

Essentially, when sampling a single channel repeatedly, the ADC may be operated up to its maximum speed, but the

front-end will filter out any frequency components of the input signal that exceeds the bandwidth of the system.

When changing channels [even if the input signal is static] the front-end is required to respond to a changing input

each time the channel is changed. The net effect is that the maximum sampling speed of the ADC is limited to the

bandwidth of the front-end when changing channels.

Each time a conversion is initiated, the ADC goes into hold mode and the front-end begins to settle on the next

channel.

4-4 Software and Board Operation

988994

DaqBoard/500 Series

Starting (Triggering) an ADC Acquisition

There are several methods that can be used to initiate an acquisition, all of these are achieved by triggering or gating

the ADC clock as mentioned previously. Note that a trigger is an edge active event and a gate is a level controlled

enable.

An acquisition can be initiated via the following:

Software

External Gate (ADTRGIN)

External Trigger (ADTRGIN)

ADC Software

Software can be used to start and stop the on-board ADC pacer clock.

ADC External Gate

An ADC clock may be “switched On” (and Off) with the external ADTRGIN input. The input is level sensitive and

selectable as either active high or active low control. If the on-board pacer clock drives the ADC, the external gate

input is used to enable and disable the ADC’s pacer clock after being polarity conditioned. The ADC clock will be

enabled as long as the gate input is in the active state.

ADC External Trigger

The external gate/trig input (ADTRGIN) may also be configured as a rising or falling edge sensitive input to trigger

the start of the ADC clock. External triggers are ignored until the ADC is enabled. Once the ADC is enabled, the

next active edge signal on ADTRGIN will enable the ADC Clock source. To disable the clock, refer to the

following section, Stopping an ADC Acquisition (CLOCK).

DaqBoard/500 Series

988994

Software and Board Operation 4-5

Stopping an ADC Acquisition (CLOCK)

Typical ways of halting an acquisition involve use of one of the following:

Software

External Gate (ADTRGIN)

External Trigger (ADTRGIN)

ADC Software

The acquisition can be stopped by software control.

ADC External Gate

An ADC clock may also be “switched off” with the external trig/gate input (ADTRGIN).

Refer to the section entitled ADC External Gate (on page 4-5 ) for additional information about this mode.

ADC External Trigger

The external gate/trig input (ADTRGIN) may also be used to stop an acquisition. In this mode, referred to as

ABOUT Trigger Mode, the ADC is disabled after a certain number of conversions are performed following a

trigger. The number of conversions may be anywhere from 1 to 65,536, which represents the number of post trigger

conversions. Once triggered the ADC Conversion Counter immediately increments after each conversion until it

reaches 0, whereupon ADC conversions are automatically disabled. If the timer is loaded with a value of -1 the

ADC will be stopped after one valid clock. If this register is loaded with the value 0 the full count (65,536

conversions) will occur.

Note that the Software and External Gate modes described in the section entitled Starting (Triggering) an ADC

Acquisition (page 4-5 ) are ignored, i.e., the trigger source is always external when in the ABOUT Trigger Mode.

If the External Trigger input is disabled, conversions are enabled as soon as the ADC is enabled and the next valid

trigger will enable the internal counter to count conversions. If the External Trigger input is enabled, the first

external trigger will start the conversions and the next valid trigger will enable the internal counter to count

conversions.

ADC Clock and FIFO Errors

If the ADC is running in DMA operating modes the board will automatically interrupt if clock errors or FIFO

overflows become active.

4-6 Software and Board Operation

988994

DaqBoard/500 Series

Clocking the DAC

DaqBoard/500 Only

The DaqBoard/500 includes two DAC channels.

The clock source of the primary DAC0 channel may be any of the following:

DAC0 Pacer Clock

External Event (DACLKIN).

The clock source for the secondary DAC1 channel is limited to the following sources:

DAC1 Pacer Clock

Channel 0 Clock Source.

DAC Software Update

A single D/A conversion may be initiated by an asynchronous software update. The DAC will output the data

sample for the selected DAC channel.

DAC Pacer Clocking

A series of DAC conversions may be controlled by the on-board pacer clock. This timer may be programmed to

generate a periodic clock rate as high as 100 kHz or as slow as 4 samples per hour.

DAC External Event Clocking

Conversions may also be caused by an external event. DACLKIN is an edge sensitive input that can be programmed

to cause conversions. The DACLKIN is selectable as either rising or falling edge sensitive.

DAC Maximum Clock Rate

The maximum rate which the DAC should be clocked and retain optimal accuracy is limited by the DAC chip itself.

These limits may not be exceeded. If the pacer clock is run faster, some of the clock pulses will be ignored by the

circuitry, and the clock error flag will set.

Digital Acquisition

The boards support 24 bits of LSTTL compatible digital I/O. All ports are terminated to +5 V with 4.7 KΩ pull-up

resistors. The digital I/O ports operate with positive logic, in other words “0” represents TTL Low and “1”

represents TTL High.

Digital Input/Output -- Ports A, B, and C

The 24 digital I/O signals from three 8-bit ports [A, B, and C] are available at the main 68-pin I/O connector. The

port channel groupings are:

A0 through A7

B0 through B7

C0 through C7

For pin identities refer to the pinout in chapter 2.

Each of the three ports can be individually programmed as either an input or output.

DaqBoard/500 Series

988994

Software and Board Operation 4-7

4-8 Software and Board Operation

988994

DaqBoard/500 Series

CE-Compliance

Overview ……5-1

CE Standards and Directives …… 5-1

Safety Conditions ……5-2

Emissions/Immunity Conditions ……5-2

Overview

CE standards were developed by the European Union (EU) dating from 1985 and include specifications

both for safety and for EMI emissions and immunity. Now, all affected products sold in EU countries must

meet such standards. Although not required in the USA, these standards are considered good engineering

practice since they enhance safety while reducing noise and ESD problems.

In contracted and in-house testing, most Daq products met the required specifications. Those products not

originally in compliance were redesigned accordingly. In some cases, alternate product versions, shield

plates, edge guards, special connectors, or add-on kits are required to meet CE compliance.

CE-compliant products bear the “CE” mark and include a Declaration of Conformity

stating the particular specifications and conditions that apply. The test records and

supporting documentation that validate the compliance are kept on file at the factory.

CE Standards and Directives

The electromagnetic compatibility (EMC) directives specify two basic requirements:

1. The device must not interfere with radio or telecommunications.

2. The device must be immune from electromagnetic interference from RF transmitters, etc.

The standards are published in the Official Journal of European Union under direction of CENELEC

(European Committee for Electrotechnical Standardization). The specific standards relevant to Daq*

equipment are listed on the product’s Declaration of Conformity and include: CISPR22:1985;

EN55022:1988 (Information Technology Equipment, Class A for commercial/industrial use); and

EN50082-1:1992 for various categories of EMI immunity.

The safety standard that applies to Daq products is EN 61010-1 : 1993 (Safety Requirements for Electrical

Equipment for Measurement, Control, and Laboratory Use, Part 1: General Requirements).

Environmental conditions include the following:

•

indoor use

altitude up to 2000 m

temperature 5°C to 40°C (41°F to 104°F)

maximum relative humidity 80% for temperatures up to 31°C (87.8°F) decreasing linearly

to 50% relative humidity at 40°C (104°F)

•

mains supply voltage fluctuations not to exceed ±10% of the nominal voltage

other supply voltage fluctuations as stated by the manufacturer

transient overvoltage according to installation categories (overvoltage categories) I, II and III

For mains supply, the minimum and normal category is II

•

pollution degree I or II in accordance with IEC 664

DaqBoard/500 Series User’s Manual

888195

CE-Compliance 5-1

For clarification, terms used in some Declarations of Conformity include:

•

pollution degree: any addition of foreign matter, solid, liquid or gaseous (ionized gases) that may

produce a reduction of dielectric strength or surface resistivity. Pollution Degree I has no influence

on safety and implies: the equipment is at operating temperature with non-condensing humidity

conditions; no conductive particles are permitted in the atmosphere; warm-up time is sufficient to

avert any condensation or frost; no hazardous voltages are applied until completion of the warm-up

period. Pollution Degree II implies the expectation of occasional condensation.

•

overvoltage (installation) category: classification with limits for transient overvoltage, dependent

on the nominal line voltage to earth. Category I implies signals without high transient values.

Category II applies to typical mains power lines with some transients.

Safety Conditions

Users must comply with all relevant safety conditions in the user’s manual and the Declarations of

Conformity. This manual and Daq hardware make use of the following Warning and Caution symbols:

If you see either of these symbols on a product, carefully read the related information and be alert to the

possibility of personal injury.

This warning symbol is used in this manual or on the equipment to warn of possible

injury or death from electrical shock under noted conditions.

This warning/caution symbol is used to warn of possible personal injury or

equipment damage under noted conditions.

Take ESD precautions (packaging, proper handling, grounded wrist strap, etc.)

Use care to avoid touching board surfaces and onboard components. Only handle

boards by their edges (or ORBs, if applicable). Ensure boards do not come into

contact with foreign elements such as oils, water, and industrial particulate.

Daq products contain no user-serviceable parts; refer all service to qualified personnel. The specific

safety conditions for CE compliance vary by product; but general safety conditions include:

•

The operator must observe all safety cautions and operating conditions specified in the

documentation for all hardware used.

•

The host computer and all connected equipment must be CE compliant.

All power must be off to the device and externally connected equipment before internal access to the

device is permitted.

•

Isolation voltage ratings: do not exceed documented voltage limits for power and signal inputs.

All wire insulation and terminal blocks in the system must be rated for the isolation voltage in use.

Voltages above 30 Vrms or ±60 VDC must not be applied if any condensation has formed on the

device.

•

Current and power use must not exceed specifications. Do not defeat fuses or other over-current

protection.

Emissions/Immunity Conditions

The specific immunity conditions for CE compliance vary by product; but general immunity conditions

include:

•

Cables must be shielded, braid-type with metal-shelled connectors. Input terminal connections are to

be made with shielded wire. The shield should be connected to the chassis ground with the hardware

provided.

•

The host computer must be properly grounded.

In low-level analog applications, some inaccuracy is to be expected when I/O leads are exposed to

RF fields or transients over 3 or 10 V/m as noted on the Declaration of Conformity.

5-2 CE-Compliance

888195

DaqBoard/500 Series User’s Manual

Specifications

A digital calibration method is used for both analog-to-digital and digital-to-analog

conversions. Please contact the factory should you believe your board to be in need

of calibration.

General

Function:

High speed, 16 channel multiplexed 16 Bit Analog-to-Digital converter (ADC)

with programmable gain, and 24 digital I/O lines for PC compatibles.

DaqBoard/500 includes two Digital-to-Analog Converters (DAC0 and DAC1)

Board

Configuration:

Completely software configurable: Host PC sets all Bus-related selections. All data

acquisition-related configuration is done by the user via software.

Analog Inputs

Number of

Inputs:

16 Single-ended or

8 Differential programmable on per channel basis

Resolution:

155.070 µV/bit on 0 to 10 V range

200 kHz max

Acquisition

Rate:

A/D Full Scale

Ranges:

±10 V; 0 to 10 V

x1, x2, x4, x8

Programmable

Gain:

ADC

Nonlinearity

(Integral):

± 1 LSB

ADC

Nonlinearity

(Differential):

± 3 LSB, no missing codes

Settling

Time

Input Ranges

Range

Accuracy*

± 10 V

± 5 V

± 2.5 V

± 1.25V

± 0.008 V

± 0.006 V

± 0.004 V

± 0.0025V

5µs

20µs

Bipolar

0 to 10 V

0 to 5 V

0 to 2.5 V

0 to 1.25 V

± 0.006 V

± 0.004 V

± 0.0025 V

± 0.00125V

5µs

20µs

Unipolar

*Accuracy 1 year, 18 to 28°C, excluding noise.

Gain Drift:

Zero Drift:

± 7 ppm/ °C

± 2 ppm/ °C

Note: Specifications subject to change without notice.

DaqBoard/500 Series User’s Manual

947294

Specifications

6-1

Note: Specifications subject to change without notice.

Signal to Noise

and Distortion:

S/(N+D) 73 dB min. @ gain = 1

Total Harmonic

Distortion:

80 dB (typical) @ gain = 1, measured to 5th harmonic

1 MHz

Full Power

Bandwidth:

Input Impedance

Shunt Res. to

Ground:

10 M ohm

Shunt

Capacitance:

28 pf

Overvoltage

Protection:

±25 V

Acceptable

Operating Limit:

Signal Plus Common Mode: ±12 V

176 element

Gain/Channel

Selection:

Analog Input Triggering/Clocking

Clock Sources:

o on-board programmable pacer

o user defined external TTL

External Clock

Input Latency:

o 5us max

Trigger Sources

Stop Sources

o software command

o External (TTL)

o software Analog as follows:

• above level

o software command

o software Analog as follows:

• above level

• below level

• rising above level

• falling below level

• inside window

• outside window

• scan count

• below level

• rising above level

• falling below level

• inside window

• outside window

External TTL

Trigger Latency:

5us max

Software Analog

Trigger Latency

One scan period max

6-2 Specifications

947294

DaqBoard/500 Series

Note: Specifications subject to change without notice.

Analog Outputs DaqBoard/500 Only

Channels

2; two clocked DACs designated as DAC0 and DAC1

Resolution:

16 bit

Output Voltage Ranges:

±10 V, 0 to 10 V

Settling time to 0.006%

of FSR:

10 µsec for 20 V step

Differential Linearity:

Accuracy:

± 0.25 LSB @ 25° guaranteed monotonic

± 0.001 V

Data Storage:

Internal FIFO/PC Memory

Clock/Update Sources:

Asynchronous

Internal Pacer

External TTL

Max update rate/channel

Waveform Triggering:

100khz

Software Command

External Trigger TTL

Output Current:

±5 mA

Digital Inputs / Outputs

Channels

Ports

24 accessible from main I/O connector

3x8-bit Ports

I/O Direction Select:

Software selectable per three 8-bit ports

(Ports A,B, and C)

Input Level:

5.0V/3.3V CMOS/LSTTL compatible

with 4.7 K ohm pull-up resistor

High Level Input Voltage:

Low Level Input Voltage:

2 V min.

0.8 V max.

High Level Output

Voltage:

2.4 V

0.4 V

Low Level Output

Voltage:

Maximum Output

Current:

Low: 12 mA (sinking)

High: 12 mA (sourcing)

DaqBoard/500 Series

947294

Specifications 6-3

Note: Specifications subject to change without notice.

Counter – 1 Counter designated as CNTR1

Channels

Pin Connections:

SCSI-68

CNTR1 – Pin 1 or Pin 39; Shared with DACLKIN

TB-100 (Option)

Connector – CNT1 or XDPCR; Shared with DACLKIN

Input Delay:

100ns max

Max. Count

65536

Max. Input Frequency:

Input Levels:

900 Khz max

5 V CMOS/TTL with 4.7 K ohm pull-up resistor

2 V min. (High level input voltage)

0.8 V max. (Low level input voltage)

High Level Input Voltage:

Low Level Input Voltage:

Timers (Frequency Pulse Generators) – 2 Timers designated as TMR0 and TMR1

Channels

Pin Connections:

TMR0

SCSI-68

Pin 3; Shared with ADTRGOUT

TB-100 (Option)

TMR1

SCSI-68

TB-100 (Option)

Connector TMR0 (Shared with ADTRGOUT)

Pin 37; Shared with ADCLKOUT

Connector TMR1 (Shared with ADCLKOUT)

Output Rates:

7.6 Hz to 500 Khz 50 % Duty Cycle Square Wave

5 V CMOS/TTL with 4.7 K ohm pull-up resistor

Output Levels:

High Level Output

Voltage:

2.4 V

0.5 V

Low Level Output

Voltage:

Maximum Output

Current:

Low: 24 mA (sinking)

High: 24 mA (sourcing)

Physical & Environmental

Size:

165 x 15x 108 mm (6.5 x 0.6 x 4.2 in.)

Connector:

68 pin standard "SCSI Type III" female connector

Operating

Temperature:

32°F to 140°F (0 °C to 60 °C)

MIL STD 810E Category 1 and 10

Vibration:

6-4 Specifications

947294

DaqBoard/500 Series

Glossary

Acquisition

Analog

A collection of scans acquired at a specified rate as controlled by the sequencer.

A signal of varying voltage or current that communicates data.

Analog-to-Digital

Converter (ADC)

A circuit or device that converts analog values into digital values, such as binary bits, for use in

digital computer processing.

API

Application Program Interface. The interface program within the Daq system’s driver that

includes function calls specific to Daq hardware and can be used with user-written programs

(several languages supported).

Bipolar

Buffer

A range of analog signals with positive and negative values (e.g., -5 to +5 V); see unipolar.

Buffer refers to a circuit or device that allows a signal to pass through it, while providing

isolation, or another function, without altering the signal. Buffer usually refers to:

(a) A device or circuit that allows for the temporary storage of data during data transfers.

Such storage can compensate for differences in data flow rates. In a FIFO (First In - First

Out) buffer, the data that is stored first is also the first data to leave the buffer.

(b) A follower stage used to drive a number of gates without overloading the preceding stage.

impedance output (effectively, an impedance buffer).

Buffer Amplifier

Channel

An amplifier used primarily to match two different impedance points, and isolate one stage from

a succeeding stage in order to prevent an undesirable interaction between the two stages.

(Also see, Buffer).

In reference to Daq devices, channel simply refers to a single input, or output entity.

In a broader sense, an input channel is a signal path between the transducer at the point of

measurement and the data acquisition system. A channel can go through various stages

(buffers, multiplexers, or signal conditioning amplifiers and filters). Input channels are

periodically sampled for readings.

An output channel from a device can be digital or analog. Outputs can vary in a programmed

way in response to an input channel signal.

Common mode

Common mode pertains to signals that are identical in amplitude and duration; also can be used

in reference to signal components.

Common mode

voltage

Common mode voltage refers to a voltage magnitude (referenced to a common point) that is

shared by two or more signals. Example: referenced to common, Signal 1 is +5 VDC and

Signal 2 is +6 VDC. The common mode voltage for the two signals is +5.5 VDC [(5 + 6)/2].

Crosstalk

Digital

An undesired transfer of signals between systems or system components. Crosstalk causes

signal interference, more commonly referred to as noise.

A digital signal is one of discrete value, in contrast to a varying signal. Combinations of binary

digits (0s and 1s) represent digital data.

Digital-to-Analog

Converter (DAC)

A circuit or device that converts digital values (binary bits), into analog signals.

DIP switch

A DIP switch is a group of miniature switches in a small Dual In-line Package (DIP). Typically,

users set these switches to configure their particular application.

Differential mode

The differential mode measures a voltage between 2 signal lines for a single channel. (Also see

single-ended mode).

Glossary

959395

G-1

Differential mode

voltage

Differential mode voltage refers to a voltage difference between two signals that are referenced

to a common point. Example: Signal 1 is +5 VDC referenced to common. Signal 2 is +6 VDC

referenced to common.

If the +5 VDC signal is used as the reference, the differential mode voltage is +1 VDC

(+ 6 VDC - +5 VDC = +1 VDC).

If the +6 VDC signal is used as the reference, the differential mode voltage is -1 VDC

(+ 5 VDC - +6 VDC = -1 VDC).

ESD

Electrostatic discharge (ESD) is the transfer of an electrostatic charge between bodies having

different electrostatic potentials. This transfer occurs during direct contact of the bodies, or

when induced by an electrostatic field. ESD energy can damage an integrated circuit (IC).

Excitation

Some transducers [e.g. strain gages, thermistors, and resistance temperature detectors

(RTDs)] require a known voltage or current. Typically, the variation of this signal through the

transducer corresponds to the condition measured.

Gain

The degree to which an input signal is amplified (or attenuated) to allow greater accuracy and

resolution; can be expressed as ×n or ±dB.

Isolation

The arrangement or operation of a circuit so that signals from another circuit or device do not

affect the isolated circuit.

In reference to Daq devices, isolation usually refers to a separation of the direct link between

the signal source and the analog-to-digital converter (ADC). Isolation is necessary when

measuring high common-mode voltage.

Linearization

Some transducers produce a voltage in linear proportion to the condition measured. Other

transducers (e.g., thermocouples) have a nonlinear response. To convert nonlinear signals

into accurate readings requires software to calibrate several points in the range used and then

interpolate values between these points.

Multiplexer (MUX)

Sample (reading)

A device that collects signals from several inputs and outputs them on a single channel.

The value of a signal on a channel at an instant in time. When triggered, the ADC reads the

channel and converts the sampled value into a 12- or 16-bit value.

Scan

A series of measurements across a pre-selected sequence of channels.

A programmable device that manages channels and channel-specific settings.

Sequencer

Simultaneous

Sample-and-Hold

An operation that gathers samples from multiple channels at the same instant and holds these

values until all are sequentially converted to digital values.

Single-ended mode

Trigger

The single-ended mode measures a voltage between a signal line and a common reference that

may be shared with other channels. (Also see differential mode).

An event to start a scan or mark an instant during an acquisition. The event can be defined in

various ways; e.g., a TTL signal, a specified voltage level in a monitored channel, a button

manually or mechanically engaged, a software command, etc. Some applications may use

pre- and post-triggers to gather data around an instant or based on signal counts.

TTL

Transistor-Transistor Logic (TTL) is a circuit in which a multiple-emitter transistor has replaced

the multiple diode cluster (of the diode-transistor logic circuit); typically used to communicate

logic signals at 5 V.

Unipolar

A range of analog signals that is always zero or positive (e.g., 0 to 10 V). Evaluating a signal in

the right range (unipolar or bipolar) allows greater resolution by using the full-range of the

corresponding digital value. See bipolar.

G-2

959395

Glossary

Notes:

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a

period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month

grace period to the normal one (1) year product warranty to cover handling and shipping time. This

ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service

Department will issue an Authorized Return (AR) number immediately upon phone or written request.

Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no

charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,

including but not limited to mishandling, improper interfacing, operation outside of design limits,

improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of

having been tampered with or shows evidence of having been damaged as a result of excessive corrosion;

or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating

conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not

limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,

OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any

damages that result from the use of its products in accordance with information provided by

OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the

company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR

REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF

TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY

AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF

LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of

OMEGA with respect to this order, whether based on contract, warranty, negligence,

indemnification, strict liability or otherwise, shall not exceed the purchase price of the

component upon which liability is based. In no event shall OMEGA be liable for

consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic

Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical

applications or used on humans. Should any Product(s) be used in or with any nuclear installation or

activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility

as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify

OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the

Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE

RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN

(AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID

PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return

package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent

breakage in transit.

FOR WARRANTY RETURNS, please have the

following information available BEFORE

contacting OMEGA:

FOR NON-WARRANTY REPAIRS, consult OMEGA

for current repair charges. Have the following

information available BEFORE contacting OMEGA:

1. Purchase Order number under which the product

was PURCHASED,

1. Purchase Order number to cover the COST

of the repair,

2. Model and serial number of the product under

warranty, and

3. Repair instructions and/or specific problems

relative to the product.

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords

our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the

prior written consent of OMEGA ENGINEERING, INC.

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

TEMPERATURE

Ⅺ

Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies

Wire: Thermocouple, RTD & Thermistor

Calibrators & Ice Point References

Recorders, Controllers & Process Monitors

Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

Ⅺ

Transducers & Strain Gages

Load Cells & Pressure Gages

Displacement Transducers

Instrumentation & Accessories

FLOW/LEVEL

Ⅺ

Rotameters, Gas Mass Flowmeters & Flow Computers

Air Velocity Indicators

Turbine/Paddlewheel Systems

Totalizers & Batch Controllers

pH/CONDUCTIVITY

Ⅺ

pH Electrodes, Testers & Accessories

Benchtop/Laboratory Meters

Controllers, Calibrators, Simulators & Pumps

Industrial pH & Conductivity Equipment

DATA ACQUISITION

Ⅺ

Data Acquisition & Engineering Software

Communications-Based Acquisition Systems

Plug-in Cards for Apple, IBM & Compatibles

Datalogging Systems

Recorders, Printers & Plotters

HEATERS

Ⅺ

Heating Cable

Cartridge & Strip Heaters

Immersion & Band Heaters

Flexible Heaters

Laboratory Heaters

ENVIRONMENTAL

MONITORING AND CONTROL

Ⅺ

Metering & Control Instrumentation

Refractometers

Pumps & Tubing

Air, Soil & Water Monitors

Industrial Water & Wastewater Treatment

pH, Conductivity & Dissolved Oxygen Instruments

M4261/1106

*324545A-01*

324545A-01

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