User’s Guide
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OME-DB-889D
16-Channel Analog Multiplexer Board
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1. FUNCTION DESCRIPTION............................................................................................................2
1.1 FEATURES ........................................................................................................................................2
1.2 APPLICATIONS .................................................................................................................................2
1.3 SPECIFICATION.................................................................................................................................2
2.1 LAYOUT...........................................................................................................................................4
2.2 JUMPER SETUP..................................................................................................................................5
2.2.1 JP0 ~ JP15 Analog Input R/C Filter........................................................................................5
2.2.4 JP18 Local / Remote Gain control ........................................................................................6
2.3 PIN ASSIGNMENT .............................................................................................................................8
3.1 INPUT CHANNEL SELECTION..........................................................................................................10
3.2 GAIN SETTING................................................................................................................................11
3.3. THE THERMOCOUPLE INPUT .........................................................................................................12
3.3 CJC OUTPUT..................................................................................................................................14
4.1 FLOATING SIGNAL CONNECTION ...................................................................................................15
4.2 NON-FLOATING SIGNAL SOURCE...................................................................................................16
4.3 CASCADING OME-DB-889D.........................................................................................................17
4.4 OPEN THERMOCOUPLE DETECTION................................................................................................18
4.5BLOCK DIAGRAM ...........................................................................................................................19
5.1 USING OME-A-822PGL ...............................................................................................................20
5.3 EXAMPLE PROGRAM ......................................................................................................................21
6.1 CALIBRATION VR DESCRIPTION ....................................................................................................23
6.2 CALIBRATION STEPS ......................................................................................................................23
1
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OME-DB-889D Multiplexer Board
1. Function Description
The OME-DB-889D is an expansion multiplexer / amplifier board for use with
OME-A-82X, OME-PCI-1800 series. Each OME-DB-889D multiplexes 16
differential analog input channels into one analog input of the DAS board. The high
grade instrumentation provides software programmable gains of 0.5, 1, 5, 10, 50, 100,
500 and 1000.
Thermocouple measurements are handled easily with OME-DB-889D. The
board includes cold junction sensing and compensation circuitry that provides a
scaling of 24.4mV/°C. Biasing restores are includes for open thermocouples
detentions of voltage measurements or 112 channels of thermocouple measurement.
1.1 Features
z Connects directly to OME-A-82X, OME-PCI-1800 series boards with D-sub 37
connectors.
z Cold-junction compensation for thermocouples and thermocouple open detection.
z Software-programmable instrumentation amplifier
z Gain of 0.5, 1, 5, 10, 50, 100, 500, 1000
z Daisy chain up to ten OME-DB-889D boards
1.2 Applications
z Energy management
z Signal conditioning
z Analog Multiplexer
1.3 Specification
z Accepts thermocouple type : J, K, T, E, S, R, B
z Cold-junction Compensation : +24.4mV/°C , 0V at 0°C
z Overvoltage protection : ±30V Continuous
z Common mode voltage : ±10V max.
z Analog output Voltage to A/D card :±10V
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Gain
Common Mode
Rejection
Non linearity %of
FSR
Settling Time
±0.0004
±0.0004
±0.0004
±0.0004
±0.0004
±0.0004
±0.0008
±0.0008
0.5
1
99dB
99dB
23uS
23uS
5
114dB
99dB
28uS
10
28uS
50
123dB
123dB
123dB
123dB
140uS
140uS
1300uS
1300uS
100
500
1000
z Power requirement : +5V@120mA
z Dimension :114mm X 204mm
z Operating temperature : 0~60°C
z Storage temperature : -20~80°C
z Humidity : 5% to 90% non condensing
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2. Installing
2.1 Layout
CJC Output
VR1
VR2
JP18
JP19
External
Voltage Input
Jumper /Connector
Name
Function
Note
Connect to A/D connector of OME-A-82x series
Cascaded to another OME-DB-889D
Connect to D/O connector of OME-A-82x series
Cascaded to another OME-DB-889D
External +5V power input
CN1
CN2
CN3
CN4
CN5
Select by JP19
Analog input channel 0~ channel 15
CJC signal output connector
CN6, CN8
CN7
Channel 0 ~ channel 15 R/C filter enable
JP0~JP15
Short : Filter Enable
Open : Filter Disable
to OME-A-82x series
A/D card
to OME-A-82x series
A/D card
Analog output channel selection
CJC output channel selection
JP16
JP17
JP18
JP19
Gain control by on board dip switch or digital
output of OME-A-82x series multi-function card
L : by dip switch
R : by Digital output
Use PC’s +5V or External +5V power
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2.2 Jumper setup
2.2.1 JP0 ~ JP15 Analog Input R/C Filter
The OME-DB-889D provides R/C filter with each analog input channel by jumper
setting.
1.2KΩ
Channel 0 High
1uF 50V
Channel 0 Low
1.2KΩ
JP0~JP15
Short : with filter
Open : Without filter
Default setting
2.2.2 JP16 Analog Output Channel Jumper
The OME-DB-889D supports 10 separate jumper to select output channel, This
feature permits up to 10 OME-DB-889D’s be connected to a 10 channel analog input
card. Place the jumper in the output channel according to the channel of the analog
input card selected for that OME-DB-889D board. The following table illustrates the
jumper setting of using the OME-DB-889D with the OME-A-82X series.
If none of the output channel is used,
JP16
JP17
X
X
0
1
2
3
4
5
6
7
8
9
Analog output CJC output
leave the jumper in position “X”. If
the CJC output is required for the
thermocouple applications, be aware
that the analog output and CJC output
share the connector for the analog
output and the CJC output.
A/D CH0
A/D CH1
A/D CH2
A/D CH3
A/D CH4
A/D CH5
A/D CH6
A/D CH7
A/D CH8
A/D CH9
Note: “X” means channels are not
supported by the OME-A-82Xseries
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2.2.3 JP19 Internal / External Power selection
The OME-DB-889D requires single +5V power supply. the connector CN5 are
used for the external power supply connection. The OME-A-82X series
multi-function card offers +5V power from the 37 pin connector , The
OME-DB-889D can be directly from the PC I/O bus by connecting the
OME-A-82Xseries multi-function card.
JP19
From PC’s +5V Power
Default Setting
From the CN5 input External +5V power
2.2.4 JP18 Local / Remote Gain control
The OME-DB-889D provides local and remote control and the selection depends on
the setting of the switch SW1.
JP18
L
R
L
R
Remote Gain Control
Default Setting
Local Gain Control
Note:
“L” Local Gain control :
from OME-DB-889D on board dip switch setting
“R” Remote Gain control : from OME-A-82X series A/D card digital output
control
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Remote Gain Control
When the JP18 is set to “R”, it means Remote Gain Control is selected and the
gain is controlled by the digital signal of connector CN3 bit D4, D5, D6. The bit
pattern and related gain is illustrated as:
CN3
D6
0
D5
0
D4
0
Gain
0.5
1
0
0
1
0
1
0
5
0
1
1
10
1
0
0
50
1
0
1
100
500
1000
1
1
0
1
1
1
Local Gain Control
Sw1
1
2
3
4
Gain
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
0.5
1
5
10
50
100
500
1000
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2.3 Pin Assignment
The OME-DB-889D provides two 37pin D-Sub connector & two 20-pin flat
cable connector. The CN1, CN2 D-sub connector is analog output link to analog input
connector of OME-A-82X series multi-function card & cascaded another
OME-DB-889D. The CN3, CN4 is digital control multiplex & gain setting link to
digital output connector of OME-A-82x series multi-function card .
CN1
,
CN2
Note:
CN3 , CN4
AO_n : analog output channel n
A.GND : Analog ground
Note
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DOn : DO0~DO3 Multiplexer control bit.
DO4~DO6 Gain control bit
D.GND : Digital Ground
+5V : PC’s +5V
+12V PC’s +12V
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3 Analog input & Gain setting
3.1 Input Channel Selection
The DB-990D provides 15 channel differential analog inputs. Input channel selection
is controlled by the 4 bit TTL/CMOS digital data (CN3 DO0~DO3) issued by the
OME-A-82x series multi-function card.
DO 3
DO 2
DO 1
DO 0
Analog input
channel
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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3.2 Gain Setting
The high grade instrumentation provides software programmable gains or
switch selectable gain of 0.5 1, 5, 10, 50, 100, 500, 1000.
Software Setting : JP18 should be place on “R”
Switch Setting : JP18 should be place on “L”
Software Setting
(Remote control)
Switch Setting
(Local Control)
Gain
DO 6
DO 5
DO 4
SW1-3
SW1-2
ON
SW1-1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
ON
ON
ON
OFF
ON
0.5
1
ON
ON
OFF
OFF
ON
5
ON
OFF
ON
10
OFF
OFF
OFF
OFF
50
ON
OFF
ON
100
500
1000
OFF
OFF
OFF
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3.3. The Thermocouple Input
The OME-DB-889D can accept thermocouple sensor to measure temperature.
The OME-DB-889D should be set to different gain value if use different
thermocouple type.
If you are usingOME-A-82XPGL series multi-function bard to linked
OME-DB-889D you have got the gain as:
Gain = OME-A-82X Gain X OME-DB-889D Gain
OME-A821PGL Gain = 1 , 2 , 4 , 8
50 , 100 , 1000
OME-DB-889D Gain = 0.5 , 1 , 5 , 10 ,
Examples
OME-A-82XPG
OME-DB Gain
L Series
-889D
1
1
2
4
1
1
1
2
4
1
1
:
X
X
X
X
X
X
X
X
X
X
X
X
1
2
1
1
4
5
5
10
100
100
100
500
1000
:
10
100
200
400
500
1000
:
:
:
:
Thermocouple type & suitable gain
TYPE E
TYPE J
TYPE K
TYPE R
TYPE S
TYPE T
-270°C to 1000°C -210°C to 760 -270°C to 1370°C 0°C to 1760°C
0°C to 1760°C -270°C to 400°C
-9.835mV to
76.358mV
Gain=50
-8.096mV to
42.922mV
Gain=100
-6.458mV to
54.807mV
Gain=50
0mV to
21.006mV
Gain=200
0mV to
18.612mV
Gain=200
-6.258mV to
20.869mV
Gain=200
12
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3.3.1 Voltage - TO - Temperature Conversion
The temperature-versus-voltage relationship of a the thermocouple is not linear.
You can reference the thermocouple reference tables to get V to T values. Or
use temperature conversion equation to get V to T values.
Temperature Conversion Equation:
T = a0 + a1 x + a2 x^2 + a3 x^3 + a4 x^4 + …….. + an x^n
where
T = Temperature
x = Thermocouple Voltage
a = Polynomial coefficients unique to each thermocouple
n = Maximum order of the polynomial
TYPE E
TYPE J
TYPE K
TYPE R
TYPE S
TYPE T
a0
a1
a2
a3
a4
a5
a6
a7
a8
a9
-100°C to 1000°C 0°C to 760°C 0°C to 1370°C 0°C to 1000°C 0°C to 1750°C -160°C to 400°C
0.104967248
17189.45282
-282639.0850
12695339.5
-0.048868252 0.226584602
0.263632917
179075.491
0.927763167
169526.5150
0.100860910
25727.94369
19873.14503
-218614.5353
11569199.78
24152.10900
67233.4248
2210340.682
-48840341.37 -31568363.94 -767345.8295
1.90002E+10 8990730663 78025595.81
-448703084.6
1.10866E+10
-1.76807E+11
1.71842E+12
-9.19278E+12
2.06132E+13
-264917531.4 -860963914.9 -4.82704E+12 -1.63565E+12 -9247486589
2018441314 4.835606E+10 7.62091E+14 1.88027E+14 6.97688E+11
-1.18452E+12 -7.20026E+16 -1.37241E+16 -2.66192E+13
1.38690E+13
3.71496E+18 6.17501E+17
3.94078E+14
-6.33708E+13 -8.03104E+19 -1.56105E+19
1.69535E+20
Note:
1. The thermocouple range of this table is this equation limited.
2. Other detail data please reference thermocouple data book.
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3.3 CJC Output
The OME-DB-889D provides Cold-Junction Compensation (CJC) for the
thermocouple applications. If the CJC is required, place the JP17 in the position of the
channel to be used as a CJC reference. If the CJC is not required, Place the JP17 in
the position “X”.
CJC has output on connector CN7. Using a voltage meter measures CN7 which exists
a voltage related to the OME-DB-889D board temperature. The CJC voltage transfers
to temperature with formula:
T(°C) = V*1000/24.4
CN7
Voltage meter
A.GND
CJC output
V: Voltage of CN7
+
-
T: Temperature of OME-DB-889D
Example: (Turbo C)
Multi-Function Card: OME-A-822PGL
The OME-DB-889D JP17 placed on “7”.
/*====================Example Program ===================*/
#include <stdio.h>
#include “A822.h>
main(void)
{int ad_channel , gain , trigger_mode, poll_data ;
float temp;
A822_Initialize(0,0x220, -1, -1);
/* Initials OME-A-822PGL Ref. OME-A-822PGH/L Software
Manual */
ad_channel=7;
gain=0;
trigger_mode=1;
for(;;)
{
A822_AD_SetChGainMode(ad_channel , gain , trigger_mode );
/* SettingOME-A-822 A/D channel =7 , Gain=1 , Trigger mode = Software
trigger */
poll_data=A822_AD_PollingVar();
temp=(float)(((poll_data-2048)*5/2048)*1000/24.4);
prinf(“ Temperature = %4.1f °C \n”, temp);
}
}
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4 Signal Connection
The OME-DB-889D can multiplex up to 16 channel differential inputs. Input channel
selection is controlled by a CN3 D4~ D6 digital output by OME-A-82x series
multi-function card.
4.1 Floating Signal Connection
The OME-DB-889D has only differential input channels, each input channel
should be two signal wires. The input should be connected as:
CH0HI
OME-DB-889
Floating Signal Source
D
CH0LO
A.GND
Differential signal input
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4.2 Non-Floating Signal Source
Some the signal source has one side connect to a local ground. The signal ground with
OME-DB-889D ground will not be same voltage level. The input should be show as:
CH0HI
OME-DB-889D
Common mode Signal Source
CH0LO
A.GND
Common mode signal input
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4.3 Cascading OME-DB-889D
OME-A-82X series A/D card
1. A821PGH/L
20 Pin Flat Cable
2. OME-A-822PGH/L
3. OME-A-823PGH/L
4. OME-A-826PGH/L
5. PCI-1800PGH/L
OME-DB-889D #2
Note: PCI-1802 should be via DB-1825
connect to OME-DB-889D
OME-A-82X
series
OME-DB-889D
JP16
OME-DB-889D #3
A/D Channel 0 OME-DB-889D #1
A/D Channel 1 OME-DB-889D #2
A/D Channel 2 OME-DB-889D #3
A/D Channel 3 OME-DB-889D #4
A/D Channel n OME-DB-889D #n
A/D Channel 9 OME-DB-889D #10
0
1
2
3
n
9
OME-DB-889D #n
Up to 10 Boards
Note: Each OME-DB-889D JP17 place on “X”
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4.4 Open Thermocouple Detection
The OME-DB-889D provides open thermocouple detection through a resistor
circuitry. These resisters are normally not connected. The user can find on the back of
the board has two solder gaps for each input channel. If you short the solder gaps, the
open thermocouple detection is enabled.
HJ0
100MΩ
-15V
1.2KΩ
Channel 0 High
Channel 0 Low
1uF 50V
1.2KΩ
OME-DB-889
GND
37Pin Cable
10KΩ
LJ0
Note:
If a thermocouple opens, the bias resistor will slowly pull the input voltage to
-10V then user can use a simple application program to detect the voltage
change.
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4.5 Block Diagram
CN8 Connector with R/C filter
JP16 JP17
CN1 CN2
OME-A-82X
AMP
16 channel Multiplexer
Analog input
VR1
CJC
VR2
Dip Switch
Control
Logic
CN3 CN4
OME-A-82X
D/O control signal
CN6 Connector with R/C filter
OME-DB-889D Block Diagram
CN1: connect to OME-A-82x series multi-function card
CN2: connect to CN1 of another OME-DB-889D
CN3: connect to OME-A-82x series digital output
CN4: connect to CN3 of another OME-DB-889D
AMP: programmable gain amplifier (PGA)
VR1: PGA off-set adjustment.
VR2: CJC gain adjustment
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5 Programming
The OME-A-82x series multi-function card can support up to 160 channels by
cascading 10 OME-DB-889D’s without complex programming.
5.1 Using OME-A-822PGL
This section will use OME-A-822PGL to link OME-DB-889D.
The major steps are listed below:
Step 1: Hardware installing.
1. Turn off power of computer.
2. Plug in OME-A-822PGL then connect 37 pin cable & 20 pin flat cables to CN1
and CN3 of OME-DB-889D.
3. Setup OME-DB-889D (Ref. Jumper setting section of OME-DB-889D. The
example program uses default setup )
4. Connect your signal wiring.
5. Turn on your computer power.
6. Installing OME-A-822PGL C library.
7. Now you are ready to programming.
Step 2: Software programming (C Language)
1. Using OME-A-822 library function to initial OME-A-822PGL
2. Setup OME-A-822PGL: Bipolar mode , Gain = 1 , Analog input channel = 0 ,
Trigger mode = Polling mode.
3. Send digital output of OME-A-822PGL data to control OME-DB-889D
D0~D3: OME-DB-889D channel selection, D4~D6: OME-DB-889D Gain setting
4. Reading OME-A-822PGL analog input data
5. Conversion data to voltage or temperature
Note:
The OME-A-82X series programming steps are same as those for the
OME-A-822PGL
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5.3 Example Program
DEMO_01.C
/* ============== Using OME-A-822 / connect one OME-DB-889D
=================*/
#include <stdio.h>
#include “A822.h”
main(void)
{int data1,data2;
float vol1,vol2;
A822_Initialize(0,0x220,-1,-1);
/* OME-A-822 Base address in 0x220 ref. OME-A-822 Software manual */
for(;;)
{
/*===============reading OME-DB-889D Channel 0 , Gain =1
=============*/
A822_AD_SetChGainMode(0,0,1);
/* Setup OME-A-822 A/D channel 0, Gain = 1 , Polling mode
*/
A822_DO(0x0010);
/* Send D/O data to OME-DB-889D , Channel 0, Gain=1 */
delay(10);
data1=A822_AD_PollingVar();
/* Reading OME-A-822 A/D data */
/* delay about 43u sec . Ref. Page 3 Settling time */
vol1=(float)((data1-2048)*5/2048);
printf(“OME-DB-889D channel 0= %6.4f V\n”,vol1);
/*===========reading OME-DB-889D Channel 1 , Gain=10
===============*/
A822_AD_SetChGainMode(0,0,1);
/* Setup OME-A-822 A/D channel 0, Gain = 1 , Polling mode
*/
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A822_DO(0x0021);
/* Send D/O data to OME-DB-889D , Channel 1, Gain=10 */
/* delay about 43u sec , Ref. Page 3 Setting time*/
data2=A822_AD_PollingVar();
/* Reading OME-A-822 A/D data */
delay(10);
vol2=(float)((data2-2048)*0.5/2048);
printf(“OME-DB-889D channel 1= %6.4f V\n”,vol2);
}
}
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6. Calibration
The OME-DB-889D is calibrated to its best of operation. For environment subjected
to large vibrations, recalibration is recommended. Before calibrating the
OME-DB-889D, user should consider having the following available:
z One 6 digital voltage meter
z One temperature meter
z One OME-A-82x series multifunction card
6.1 Calibration VR Description
There are two VRs on the OME-DB-889D.
VR Num.
VR1
Description
Amplifier Offset adjustment
CJC Gain adjustment
VR2
6.2 Calibration Steps
1. Turn off computer power.
2. Connect OME-A-822PGL (Or any OME-A-82x series multi-function card) to
OME-DB-889D.
3. Setup OME-DB-889D to default setting
4. Short CH0HI to CH0LO to A.GND of DB889D.
5. Connect probe of voltage meter to CN7 (CJC output: + , A.GND : - ).
6. Turn on computer power
7. Wait about 5 minute (warn up).
8. Run Calibration program of OME-DB-889D.
9. Close the probe of temperature meter to OME-DB-889D them reading
temperature value.
10. Adjust VR1 until the screen value = 0;
11. Adjust VR2 until voltage meter reading value = temperature value X 2.44mV
23
OME-DB-889D User’s Manual
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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 which wear are not warranted, including but 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 it will be
as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS 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.
© Copyright 2002 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,
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.
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Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGA…Of Course!
TEMPERATURE
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ 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
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Transducers & Strain Gages
Load Cells & Pressure Gages
Displacement Transducers
Instrumentation & Accessories
FLOW/LEVEL
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Rotameters, Gas Mass Flowmeters & Flow Computers
Air Velocity Indicators
Turbine/Paddlewheel Systems
Totalizers & Batch Controllers
pH/CONDUCTIVITY
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ pH Electrodes, Testers & Accessories
Benchtop/Laboratory Meters
Controllers, Calibrators, Simulators & Pumps
Industrial pH & Conductivity Equipment
DATA ACQUISITION
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Data Acquisition & Engineering Software
Communications-Based Acquisition Systems
Plug-in Cards for Apple, IBM & Compatibles
Datalogging Systems
Recorders, Printers & Plotters
HEATERS
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Heating Cable
Cartridge & Strip Heaters
Immersion & Band Heaters
Flexible Heaters
Laboratory Heaters
ENVIRONMENTAL
MONITORING AND CONTROL
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Metering & Control Instrumentation
Refractometers
Pumps & Tubing
Air, Soil & Water Monitors
Industrial Water & Wastewater Treatment
pH, Conductivity & Dissolved Oxygen Instruments
M4019/1103
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