Omega DPF500 Series User Manual

Users Guide  
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Table of Contents  
Page  
Chapter 1 Introduction  
1.1 Unpacking  
1
1
1
1
1
1.2 Description  
1.3 Features  
1.4 Available Models  
1.5 Available Options/Accessories  
Chapter 2 Installation  
2.1 Battery Installation  
2
2
3
4
4
2.2 Battery Replacement  
2.3 Dimensions  
2.4 Wiring  
2.5 Typical Applications/Wiring Diagrams  
Chapter 3 20 Point Linearization Operation  
3.1 20 Point Linearization (-LIN option)  
5
Chapter 4 Programming  
4.1 Explanation of Display Prompts  
4.2 Programming Flowchart  
5
8
Chapter 5 Operation  
5.1 General  
10  
10  
5.2 Maintenance  
Chapter 6 Error Messages/Analog Output Calibration  
6.1 Error Messages  
11  
11  
6.2 Analog Output Calibration  
Chapter 7 Specifications  
7.1 Specifications  
12  
i
THIS PAGE INTENTIONALLY BLANK  
ii  
Chapter 1 Introduction  
1.1 Unpacking  
Remove the Packing List and verify that you have received all equipment. If you have any questions about the  
shipment, please call OMEGA Customer Service Department.  
When you receive the shipment, inspect the container and equipment for any signs of damage. Note any evidence  
of rough handling in transit. Immediately report any damage to the shipping agent.  
NOTE: The carrier will not honor any damage claims unless all shipping material is saved for their examination.  
After examining and removing contents, save packaging material and carton in the event reshipment is  
necessary.  
1.2 Description  
Featuring 5 digits of rate and 8 digits of total, the DPF500 meter is a battery powered indicator capable of accepting  
magnetic pickup, DC pulse and switch closure inputs. The unit can be ordered with an optional 4-20mA output. The  
DPF500-MA uses the 4-20mA loop to provide power when this output is used.  
1.3 Features  
• Magnetic Pickup Input, Contact Closure Input, DC Pulse Input (Optically Isolated)  
• Displays Rate & Total Simultaneously  
• 5 Digit Rate Display  
• 8 Digit Totalizer Display  
• 4-20mA Analog Output (-MA option)  
• Powered From Internal Battery, or 4-20 mA Output Loop (-MA option)  
• 20 Pt. Linearization (-LIN option)  
• Isolated Scaled Pulse Output  
1.4 Available
 
Models  
The following models are available from OMEGA Engineering, Inc.  
PART NUMBER  
DPF501  
DESCRIPTION  
Panel Mount, Battery Powered* Ratemeter and Totalizer (NEMA-4 Front)  
Wall Mount, Battery Powered* Ratemeter and Totalizer (NEMA-4 Enclosure)  
Explosion Proof, Battery Powered* Ratemeter and Totalizer  
Class I, Division I, Groups B, C & D  
DPF502  
DPF503  
Class II, Division I, Groups E, F & G  
* All units may be powered from an external 8.5 -30 VDC to prolong internal battery life.  
1.5 Available Options/Accessories  
The following options (available at the time of ordering) are available from OMEGA Engineering, Inc.  
PART NUMBER  
DESCRIPTION  
Loop Powered with 4-20 mA output  
20-point linearization  
Battery Pack  
Extended Temperature Range  
-MA  
-LIN  
-BAT  
-ET  
The following accessories are available from OMEGA Engineering, Inc.  
PART NUMBER  
DPF5-BP  
DPF501-BAT  
FPW-15  
DESCRIPTION  
External battery pack with 2 "C" size batteries and 12" leads  
Spare battery  
15 VDC power supply  
1
Chapter 2 Installation  
2.1 Battery Installation:  
All DPF500 models are shipped without the battery(ies) installed. This preserves battery life when the unit is not in  
service. When using external DPF5-BP, mount within 12" and plug connector into 3 position square posts (see Fig  
1). Polarity is not a concern because center is common.  
To install the battery, begin by locating the battery holder. The DPF502 and DPF503 require opening the enclosure  
cover and removing the DPF500 to expose the battery holder.  
The plus terminal of the battery is marked with a (+) symbol stamped into the battery holder. Be sure to install the  
battery(ies) correctly.  
Install battery(ies) to begin setup procedure. See Programming Flowchart to setup desired operating parameters.  
2.2 Battery Replacement:  
The DPF500 has a battery monitor feature which illuminates when the lithium battery voltage approaches its end  
of life. A descriptor, “BAT”, illuminates when the battery voltage falls below this predetermined value. The low bat-  
tery detector operates correctly with all power options.  
The battery, or batteries, should be replaced within several weeks of the first occurrence of low battery warning,  
“BAT”. Left unattended, the unit may become inaccurate, cease to operate or malfunction.  
Before replacing the battery(ies), Press the
(left arrow) key to save the totalizer. The display will show "
SAVE  
TOTAL
". This will save the current total value and the total will resume from this value when the new battery(ies)  
is(are) installed. NOTE: If the display starts to flash after the "
SAvE totAL
" message times out, press the "E" (enter)  
key. If the message "E FLASH" is displayed, then there was not enough power left to save the setup and totalizer  
to flash memory. At this point you must record the totalizer and setup information and re-enter the setup data after  
the new battery(ies) is(are) installed.  
Install new battery(ies) as described above.  
Fig 1  
Rear View  
DPF5-BP  
Connector  
2
2.3 Dimensions  
DPF501  
Outside Dotted Line Shows  
Outside Panel Dimension  
(4.00" Diameter)  
DPF5-BP Accessory  
3.582" Dia. Bolt Circle  
.125" Holes to be 120° Apart  
.10  
1.7  
(2.54)  
(43)  
3.062" (77.77)  
Dia. Cutout  
Panel  
Cutout  
2.875  
(73)  
4.00  
(101.6)  
120°  
Dimensions are in inches (mm)  
Dimensions are in inches (mm)  
DPF502  
DPF503  
To access terminals, unscrew cover and loosen 2 panel screws.  
(If screws are removed, spacers may drop out.) Terminals are on  
bottom side of PC board.  
#8 Screw Mounting holes molded directly under cover  
screws. Max. screw head .29" (Typ. 4 places)  
4.92(125)  
5.00  
(127)  
4.63  
(117)  
4.33 (110)  
Toaccess terminals, remove cover  
and 4 panel screws.Terminals are  
on bottom side of PC board.  
3/4 NPT  
(2) HLS  
Panel Screws  
5.00  
(127)  
.98  
4.33  
4.92  
(25)  
(110)  
(125)  
E
M
E
M
1.97  
5/16  
(50)  
.43  
(11)  
.18 (5)  
4.25  
(108)  
TOP VIEW (PANEL INSTALLED)  
BOTTOM VIEW  
5.25  
(133)  
Dimensions are in inches (mm)  
Dimensions are in inches (mm)  
3
2.4 Wiring  
Several typical applications of the DPF500 are shown below. Please observe that the various pulse inputs and power  
options may be intermixed in many ways to solve common applications. The isolated pulse output may be freely  
used so long as proper polarity is observed.  
Caution: When 4-20 mA loop option is provided, the power wiring to the loop power option should always be to  
terminals (+) 12 and (-) 11. Accidental wiring to (+) 12 and (-)6 should be avoided since excessive current  
flow may result.  
Caution: The magnetic pickup input and contact closure input require isolated sensors for proper operation. Ac-  
cidental connections to earth may result in erroneous operation of the analog output and/or excessive  
current flow.  
Caution: Accidental connections from circuit common (3 or 6) to earth or terminal (11) may result in erroneous op-  
eration of the analog output and/or excessive current flow.  
2.5 Typical Applications / Wiring Diagrams  
CONTACT INPUT / PULSE OUTPUT / BATTERY POWERED  
ISOLATED INPUT / 4-20mA LOOP POWERED  
+
-
To Shiedl  
Pin3  
Strip Chatr  
Recorder  
+
-
24 VDC  
-
+
-
+
Power  
4
1
24 VDC  
Power  
Supply  
Supply  
PSU-24B  
123456  
DPF76 Totalizer  
PSU-24B  
Flowmeter  
Flowmeter with  
with DC Pulse Output  
Switch Closure Output  
4-20mA (+)/DC In (+) 12 1 Mag Input1  
4-20mA (+)/DC In (+) 12 1 Mag Input1  
4-20mA (-) 11 2 Mag Input2  
Opto Input (+) 10 3 Shield/GND  
Opto Input (-) 9 4 Reset Input  
Opto Out (+) 8 5 Contact Input  
Opto Out (-) 7 6 Common/ DC In (-)  
4-20mA (-) 11 2 Mag Input2  
Opto Input (+) 10 3 Shield/GND  
Opto Input (-) 9 4 Reset Input  
Opto Out (+) 8 5 Contact Input  
Opto Out (-) 7 6 Common/ DC In (-)  
NOTE: Separate power supplies  
are recommended to isolate output  
from input.  
If isolation is not a concern, use a  
single power suppyl  
MAG INPUT / DC POWERED  
MAG INPUT / DPF5-BP POWERED  
DPF5-BP PLUG-IN  
DPF5-BP  
CONNECTOR  
+
-
15 VDC  
Power  
Supply  
FPW-15  
Remote  
Reset Switch  
Remote  
Reset Switch  
4-20mA (+)/DC In (+) 12 1 Mag Input1  
4-20mA (-) 11 2 Mag Input2  
4-20mA (+)/DC In (+) 12 1 Mag Input1  
4-20mA (-) 11 2 Mag Input2  
Opto Input (+) 10 3 Shield/GND  
Opto Input (-) 9 4 Reset Input  
Opto Out (+) 8 5 Contact Input  
Opto Out (-)
7 6
 
Common/ DC In (-)  
Opto Input (+) 10 3 Shield/GND  
Turbine Meter with  
Mag Pickup  
4 Reset Input  
Turbine Meter with  
Mag Pickup  
Opto Input (-) 9  
Opto Out (+) 8 5 Contact Input  
Opto Out (-)
7 6
 
Common/ DC In (-)  
4
Chapter 3 20 Point Linearization (-LIN option)  
3.1 20 Point Linearization Operation (-LIN option)  
A 20 point linearization table is used to construct a curve describing the relationship of K-Factor and input  
frequency. The measured input frequency is used to access the table. A linear interpolation of adjacent  
point pairs is used to arrive at the K-Factor at that input frequency. The flow rate and total are then com-  
puted based upon the K-Factor for that measurement sample.  
NOTE: For best performance and resolution choose as many decimal places as possible in the K-  
Factor.  
Example: Enter a K-Factor of 1 as 1.000.  
Chapter 4 Programming  
4.1 Explanation of Display Prompts  
Save Total: (Save Total) Press the E key while the unit is running to save the total value. The display will show  
"
save total" for a few seconds. This is a very useful "scratch pad" to save and restore total when replacing  
the battery(ies)  
ent Code: (enter code) This prompt will only appear if the panel lock is ON. Press the key to increment each digit.  
Press the
key to step to the next digit to the left. Press the E key to enter the 5 digit code. If the entered  
code is correct, the display will advance to the next menu prompt (CLr tot). If incorrect, the display will return  
to the run mode.  
Clr tot: (clear total) Clears (resets) the totalizer. Press the E key to clear the total and return to the run mode. Press  
the M key to skip and advance to the next menu selection.  
fdeC: (factor decimal) Sets the decimal location for the factor. This location is restricted to 3 places (99.999). The use  
of this decimal automatically limits the number of decimal locations allowable in the rate and total to acceptable  
ranges. Press the
key to move the decimal. Press the E key to select the displayed decimal location.  
NOTE:  
For best performance and resolution choose as many decimal places as possible in the K-Factor.  
Example: Enter a K-Factor of 1 as 1.000.  
faC lInear/20poInt: (factor type) This prompt will only appear if the unit is ordered with the 20 point linearization op-  
tion. The 20 poInt linearization selection is recommended for flow meters whose K-factors change with different  
flow rates. This selection allows users to enter up to 20 different frequencies with 20 corresponding K-factors for  
different flow rates. The lInear setting is used for flow meters whose output is linear over its' entire operating  
flow range. Press the key to step to the desired choice. Press the E key to enter the displayed factor type.  
/ yes set Pnts: (set 20 point?) This prompt allows the user to skip the 20 point setup routine. Select yes for  
initial setup or to change the present 20 point values. Select  
to skip and keep the existing values.  
faC : (factor) This prompt appears on all units with linear inputs. The Factor is the number of pulses per unit volume  
for the flow sensor. The pulses/unit volume is implied by the totalizer descriptor when a descriptor is used. The  
implied units for the Factor are then as follows:  
GAL  
LIT  
FT3  
M3  
pulses/gallon  
pulses/liter  
pulses/ft3  
pulses/M3  
Factors from 0.0001 to 99999999 may be used. A "0" value for the factor is not allowed and the unit will default  
to "1" in LSD if a "0" entry is attempted . The factor is displayed on the subsidiary (lower) display. Press the ↑  
key to increment each digit. Press the
key to step to the next digit to the left. Press the E key to enter the  
displayed factor.  
5
4.1 Explanation of Display Prompts (continued)  
fr#
: (frequency for point #) This prompt will only appear when 20 point selected. It sets the frequency for each of  
the 20 points (#). Press the key to increment each digit. Press the
key to step to the next digit to the left.  
Press the E key to enter the desired frequency for point #.  
faC#
: (factor for point #) This prompt will only appear when 20 point selected. It sets the factor for each of the 20  
points (#). Press the key to increment each digit. Press the
key to step to the next digit to the left. Press  
the E key to enter the desired factor for point #.  
NOTE: The display will advance to the next point (Fr#) after each entry of the Fr & Fac until all 20 points are com-  
plete. entering a 0 in the Fr or fac setting will advance the display to the next menu prompt (tdec).  
tdeC
: (totalizer decimal) Sets the decimal location for the totalizer. The totalizer decimal is not a dummy decimal  
and will scale the totalizer display accordingly. (i.e. if the tdec is set in the tenths position (1234567.8), 100 will be  
displayed as 100.0). The location of the decimal point allows for greater resolution of both the totalizer display  
and the pulse output. The pulse output advances at a rate dependent on the least significant digit of the total-  
izer. The totalizer decimal location is restricted to a maximum of 4 places (1234.5678). However, the number  
of totalizer decimal locations allowable is reduced with each decimal place added to the factor decimal. Press  
the
key to move the decimal. Press the E key to enter the displayed decimal location.  
Note: The selection of the factor decimal point limits the available selections for the number of decimal  
points available for the totalizer. This is automatic. Enter your selection of the Factor’s decimal point  
before entering the totalizer decimal point to assure the proper selection of the totalizer decimal  
point has been made.  
tot desC
: (totalizer descriptor) This allows you to illuminate one of the available descriptors on the display (STD:  
GAL, LIT, FT3, M3 or "blank"; "D" option: GAL, BBL, MCF, M3, "blank"). Press the key to select the descrip-  
tor. Press the E key to enter the selected descriptor.  
r sCale
: (ratemeter scaling) Sets the rate readout. Choose rate per hour (
Hrs
), minutes (
nnIn
) or seconds (
seC
).  
(Days will appear on units ordered with the "D" (rate per day) option.) The scale setting is shown on the main  
(upper) display. Press the key to step to the desired choice. Press the E key to enter the displayed scale  
setting.  
Note: A rate descriptor corresponding to the above choice will be illuminated on the display.  
r deCloC
: (ratemeter decimal location) Sets the decimal location for the ratemeter. The ratemeter decimal is not  
a dummy decimal and will scale the rate display accordingly. (i.e. if the r decloc is set in the tenths position  
(123.4), 100 will be displayed as 100.0). The ratemeter decimal location is restricted to a maximum of 4 places  
(.1234). However, the number of ratemeter decimal locations allowable is reduced with each decimal place  
added to the factor decimal. Press the
key to move the decimal. Press the E key to enter the displayed  
decimal location.  
Note: The flow rate indicator will flash “99999” if the computed flow rate exceeds the 99999  
display capability of the indicator. Choose a new decimal point location to avoid this.  
NOR#
NORMALIZING FACTOR - Normalizes (averages) the data being received. Enter a value from 0 to 9.  
Higher settings provide more normalizing (averaging) for a more stable display. Derived from the equation:  
(Old Data x "NOR" + New Data)  
("NOR" + 1)  
delay
: (delay) Sets the amount of time (0.1 to 99.9 seconds) that the unit will "look" for valid input data. If pulses  
are not detected within this "window", the rate will display 0. The display will update once every second as  
long as the unit receives valid data within a second. Some internal mathematics may delay this update.  
Press the key to increment each digit. Press the
key to step to the next digit to the left. Press the E key  
to enter the displayed delay value.  
oUt lo
: (out low) Sets the low setting for the 4-20 mA analog output. Key in the low rate value at which the unit will  
output 4mA. Press the key to increment each digit. Press the
key to step to the next digit to the left. Press  
the E key to enter the displayed out lo value.  
6
4.1 Explanation of Display Prompts (continued)  
oUt HI
: (out high) Sets the high setting for the 4-20 mA analog output. Key in the high rate value at which the unit  
will output 20 mA. Press the key to increment each digit. Press the
key to step to the next digit to the left.  
Press the
E
key to enter the displayed out hi value.  
pUlscale
: (pulse out scaling) This allows the unit to output a pulse for each least significant total count divided by  
the selected divider. The pulse out can be divided by 1 (
d 1
), 10 (
d 10
), 100 (
d 100
), or turned off (
off
). With  
the divider set at 1, the unit will give a pulse out for every increment of the LSD displayed.  
Note: For maximum battery life, turn the pulse output off when pulse output is not used.  
Selecting the proper pulse output divider may be needed so that the pulse output  
does not exceed the maximum rate of the pulse output. If the pulse output  
pulses too quickly a flashing display will result. Pressing the “M” key will result in a display of an error mes-  
sage “E PULSE”. Press the “E” key to return to the run mode.  
P uuidth
: (pulse width) Sets the pulse width of the pulse output. Selections are: 0.5 (1Hz), 0.25 (2Hz),0.125 (4Hz)  
or 0.0625 (8Hz). This menu item is skipped if
pUlscale
is turned off.  
loC Code
: (lock code) Sets the 5 digit lock code to be entered when the unit prompts
ent Code
. This allows the user  
to gain access to the menu when the unit is locked. Press the key to increment each digit. Press the
key  
to step to the next digit to the left. Press the
E
key to enter the displayed code.  
Record this number for later use!  
LOCK CODE:  
loC UnIt
: (lock unit) Sets the panel lock ON or OFF. Press the key to select On or OFF. Press the
E
key to enter  
the displayed selection.  
7
4.2 Programming Flowchart  
Press the M key to enter the programming menu.  
RATE  
RUN MODE  
TOTAL  
If panel  
M
lock OFF  
If panel  
If the panel lock is on, you must enter the 4 digit lock code to gain access  
to the menu.  
lock ON  
Press the  
Press the  
key to increment each individual digit of the code.  
key to advance to the next digit.  
0000  
ENTER CODE  
ent Code  
Press the E key to enter the displayed code.  
If the code is correct, display advances to "clr tot", if not, display returns  
to run mode  
If code  
incorrect  
E
If code  
correct  
Press the E key to clear the totalizer and return to the programming menu.  
Press the M key to skip and go to next menu item.  
E
CLEAR TOTAL  
CLR ToT  
M
Press the  
key to step the factor decimal to the desired location.  
Press the E key to enter the displayed decimal location.  
Press the M key to skip and keep the existing location  
NOTE: For best performance and resolution choose as many decimal places as  
FACTOR  
DECIMAL  
FDEC  
E
E
12345678  
M
possible in the K-Factor.Example: Enter a K-Factor of 1 as 1.000.  
Press the  
key to choose factor type (
20point
or
linear
).  
20poInt  
lInear  
FACTOR  
TYPE  
FAC  
Press the E key to enter the displayed factor type.  
20poInt  
Press the M key to skip and keep the existing factor type.  
M
The
FAC
prompt will only appear if
linear
is selected or if the unit was ordered  
20poInt  
selected  
lInear  
selected  
without the 20 point linearization option.  
Press the  
Press the  
key to increment each individual digit of the factor.  
key to advance to the next digit.  
FACTOR  
FAC  
E
Press the E key to enter the displayed factor.  
Press the M key to skip and keep the existing factor.  
100  
SET  
M
20PT  
YES  
YES  
E
The SET pnts prompt will only appear if 20point is selected. This allows users  
SET pnts  
to bypass the 20 point set up and keep the existing values.  
M
Press the  
key to choose YES or NO.  
Press the E key to enter the displayedselection.  
Press the M key to skip (same as selecting NO).  
YES  
selected  
selected  
Press the  
#.  
Press the  
key to increment each individual digit of the frequency for point  
key to advance to the next digit.  
Fr#  
FREQUENCY  
for POINT #  
(Fr0-Fr19)  
E
E
#####  
M
Press the E key to enter the displayed frequency.  
If Fr1-FR19 = 0  
Press the M key to skip and keep the existing frequency.  
If 0 is entered, the display will advance to the next prompt (tdec).  
NOTE: Frequency/factor point pairs must be entered in ascending order of fre-  
quency  
FaC#  
FACTOR for  
POINT #  
#####  
(FAC0-FAC19)  
Press the  
Press the  
key to increment each individual digit of the factor for point #.  
key to advance to the next digit.  
M
Press the E key to enter the displayed factor.  
Press the M key to skip and keep the existing factor.  
If 0 is entered, the display will advance to the next prompt (tdec).  
# = 19  
Continue On  
Next Page  
8
4.2 Programming Flowchart (continued)  
Continued From Previous Page  
Press the  
Press the E key to enter the displayed decimal location.  
Press the M key to skip and keep the existing location  
key to step the totalizer decimal to the desired location.  
TDEC  
TOT AL DECIMAL  
E
E
E
E
E
E
E
E
E
E
E
E
12345678  
M
GAL  
LIT  
Press the  
key to step to the desired totalizer descriptor.  
Press the E key to enter the displayed descriptor.  
Press the M key to skip and keep the existing descriptor.  
NOTE: When option "D" (rate per day) is ordered; selections are:  
GAL, BBL, MCF, M3, "blank"  
TOT AL  
DESCRIPT OR  
FT3  
ToT DESC  
M3  
"blank"  
M
(BBL, MCF)  
Press the  
key to step to the desired scale setting.  
SEC  
Press the E key to enter the displayed scale setting.  
Press the M key to skip and keep the existing setting.  
NOTE: When option "D" (rate per day) is ordered; selections are:  
min, sec, days  
SEC  
SCALE  
(ratemeter)  
r SCALE  
HRS  
(Days)  
M
Press the  
key to step the ratemeter decimal to the desired location.  
RA TE  
DECIMAL  
LOCA TION  
1234  
Press the E key to enter the displayed decimal location.  
R DECLoC  
Press the M key to skip and keep the existing location  
M
Press the  
key to increment each individual digit of the "nor" factor.  
NORMALIZATION  
1
Press the E key to enter the displayed value.  
Press the M key to skip and keep the existing value.  
M
Press the  
Press the  
key to increment each individual digit of the delay.  
key to advance to the next digit.  
0.1  
DELA Y  
delay  
Press the E key to enter the displayed value.  
0.1 to 99.9  
Press the M key to skip and keep the existing value.  
M
Press the  
value). This will only display on units with Analog Output.  
key to advance to the next digit.  
key to increment each individual digit of the out low setting (4mA  
0000  
OUT LOW  
(4mA)  
Press the  
oUT Lo  
Press the E key to enter the displayed value.  
M
Press the M key to skip and keep the existing value.  
Press the key to increment each individual digit of the out high setting (20mA  
99999  
OUT HIGH  
(20mA)  
value). This will only display on units with Analog Output.  
oUT HI  
Press the  
key to advance to the next digit.  
Press the E key to enter the displayed value.  
M
Press the M key to skip and keep the existing value.  
D 1  
D 10  
D100  
oFF  
PULSE  
SCALER  
(divider)  
Press the  
key to step to the desired pulse scale divider for the pulse  
D 1  
output.  
Pul scale  
Press the E key to enter the displayed pulse scale divider.  
Press the M key to skip and keep the existing pulse scale value.  
M
.5  
.25  
.125  
.0625  
Press the  
key to step to the desired pulse width for the pulse output.  
PULSE  
WIDTH  
(seconds)  
.5  
Press the E key to enter the displayed pulse width.  
Press the M key to skip and keep the existing pulse width.  
This will not display if Pulse Out is turned OFF.  
p uuidth  
M
Press the  
Press the  
key to increment each individual digit of the lock code.  
key to advance to the next digit.  
LOCK  
CODE  
0000  
loc code  
Press the E key to enter the displayed value.  
Press the M key to skip and keep the existing value.  
M
Press the  
key to step to the desired lock setting.  
TURN LOCK  
ON or OFF  
yes  
yes  
Press the E key to enter the displayed lock setting.  
loC UnIt  
Press the M key to skip and keep the existing setting.  
M
RUN MODE  
9
Chapter 5 Operation  
5.1 General  
A suitable pulse producing device or flow meter is wired to one of the three pulse inputs provided on the DPF500.  
Only one of these inputs is used in a given application. There are no connections to the two unused pulse inputs.  
Isolated magnetic pickups may be connected to terminals 1 and 2. Isolated contact closures may be connected to  
terminals 5 and 6. Any high level, DC  
pulse type may be connected to terminals 9(-) and 10(+).  
Power to the unit may be provided by internal batteries, external DC, or the current loop. In all cases, the internal  
battery will provide for continued operation in the event primary power is lost.  
Once properly wired, the operation of the DPF500 is automatic.  
The flow totalizer is updated once per second* with battery power, instantaneously with DC or loop power. If no  
input counts are received the unit remains in a low power state to conserve power.  
The flow total may be cleared by the front panel switch sequence or by a contact closure on the remote reset ter-  
minal to circuit common.  
To reset the unit from the front panel, the following key sequence is required:  
Press M “CLr tot” will be displayed (if the panel lock is on, the display will prompt "ent code".  
Enter the proper code to advance to the clr tot prompt)  
Press E To clear the total. Unit will return to operation  
The flow rate indicator will measure the flow rate once every second* with battery power, 8 times per second with  
DC or loop power and display the flow rate.  
If the input pulses are not detected within the delay setting (0.1 to 99.9 seconds), a flow rate of 0 will be indicated.  
The analog output will be scaled based on the user selected zero and full scale and the measured flow rate. The  
analog output is updated at the same time as the rate display.  
The pulse output updates at the same rate as the total display in accordance with the instrument setup of pulse  
scaling.  
* A large delay setting and internal math operations may delay the update rate. A faster update rate occurs when the  
unit is loop powered or externally powered.  
5.2 Maintenance  
The only scheduled maintenance for the DPF500 is periodic replacement of the battery.  
Battery Replacement:  
See Section 2.1 for battery installation instructions.  
See Section 2.2 for battery replacement instructions.  
10  
Chapter 6 Error Messages / Analog Output Calibration  
6.1 Error Messages  
The DPF500 is provided with extensive self checking which assists the user in the location of setup entry errors  
and in reporting malfunctions or unusual operating conditions. When an error occurs, the display will flash. Press  
any key to see the error message corresponding to the error that has occurred. Press any key again to acknowl-  
edge the error. (If the error can be eliminated by a change of setup values, the unit will automatically advance to  
the MENU so that the appropriate setup changes can be made).  
Table - 1 illustrates the warning message, problem, and recommended corrective actions.  
Diagnostic Error Messages Table-1  
WARNING MESSAGE  
CAUSE  
CORRECTIVE ACTION  
RATE ER  
Rate Low set  
higher than Rate Hi  
Set Rate Hi greater  
than Rate Lo  
FAC ERR  
Factor = 0  
Set in correct Factor  
Replace battery(ies)  
None required  
“BAT” Descriptor  
E total  
Low Battery  
Total rollover  
E RATE  
Rate exceeds 99999  
Pulse out Overflow  
Use lower rate dec point  
E pulse  
Use different pulse scaler or  
totalizer decimal point  
E FLASH  
Save to flash  
memory failed  
Write down displayed total and  
setup values if you are changing  
the battery. If total wasn't saved,  
it will display an arbitrary total  
when new battery is installed. In  
this case, reset the total to 0 and  
check the setup information.  
6.2 Analog Output Calibration  
CAUTION: Performing the analog output calibration will erase all programming values. Please record all  
programmed values before beginning the analog output calibration  
If the unit is equipped with the analog output option, the 4-20 mA has been accurately set to 4.000 and  
20.000 mA by the factory. No calibrationshould be required.  
The 4-20 mA output may be verified periodically by installing a digital milliamp meter(DMM) in series with the  
analog output and simulating a full scale or over range flow rate.  
If the output is out of calibration, perform the following:  
Remove power and/or disconnect battery(ies). Hold down the scroll () key and replace the battery. This will  
initiallize the unit and advance to the analog output calibration mode. Connect a DMM set to read current in series  
with a power supply (8.5 to 30 volts DC) to TB12 (+) and TB11 (–). The output should read 4.000 ma (± 0.005).  
If it does not, Adjust the numbers on the display up or down until the output reads 4.000 ma (± 0.005). Press the  
"E" key. The DMM should now read 20.000 ma (± 0.005). If it does not, Adjust the numbers on the display up or  
down until the output reads 20.000 ma (± 0.005). Press "E" and the unit will return to the "RUN" mode.  
11  
Chapter 7 Specifications  
7.1 Specifications  
ENVIRONMENTAL:  
OPERATING TEMPERATURE  
-4°F (-20°C) to + 158°F (70°C)  
Extended Temp: -22°F (-30°C) to + 158°F (70°C)  
HUMIDITY  
Power:  
BATTERY POWERED  
Supplied with 1 or 2 C size Lithium battery pack.  
EXTERNAL POWER INPUT  
Voltage: 8.5 to 30 VDC  
Current: Less than 5 mA  
0 - 90% Noncondensing  
MOUNTING STYLES:  
1- Panel Mount -  
2- Wall Mount -  
NEMA 4X Front  
Supplied with 1 C size lithium battery  
Protection: Reverse Polarity Protection on DC Power Input  
LOOP POWERED  
NEMA 4X Enclosure  
(keypad mounted behind clear cover)  
Class I, Division I, Groups B, C & D  
Class II, Division I, Groups E, F & G  
3- Explosion Proof -  
Voltage: 8.5 to 30 VDC  
Supplied with 1 or 2 C size lithium battery(ies)  
Protection: Reverse Polarity Protection on Current Loop  
Loop Burden: 8.5V maximum  
INPUTS:  
MAGNETIC PICKUP INPUT  
Frequency Range: 0 to 3500 Hz  
Trigger Sensitivity: 30 mV p-p (10 mV p-p on special order)  
Over Voltage Protected: ± 30 VDC  
OPTO-ISOLATED DC PULSE INPUT  
High (logic 1): 4-30 VDC  
BATTERY LIFE EXPECTANCY:  
Expected Years of Operation for DPF500 of various powering op-  
tions at equipment duty cycles  
MODEL  
RUN TIME  
2hrs/day 8hrs/day 24hrs/day  
Low (logic 0): Less Than 1 VDC  
Minimum Current: .5 mA  
Idle  
-BAT*  
10 yrs  
10 yrs  
10 yrs  
10 yrs  
10 yrs  
10 yrs  
10 yrs  
10 yrs  
10 yrs  
9.1 yrs  
8.4 yrs  
10 yrs  
Hysteresis: 0.4 VDC  
-BAT-LIN  
Standard unit  
and -MA  
Frequency Range: 0 to 5 kHz  
Min. Pulse Width: 0.1 msec  
CONTACT CLOSURE INPUT (contact closure to common)  
Internal Pullup Resistor: 100 KΩ to +3.6 VDC  
High (logic 1): Open or 4-30 VDC  
Low (logic 0): Less Than .5 VDC  
Internal Switch Debounce Filter: 0 to 40 Hz  
NOTE: Sustained contact closure will shorten  
battery life.  
(standby-operation)  
Standard unit  
and -MA  
Indefinite operation when externally powered  
External or loop power  
* -BAT option contains DPF5-BP battery pack  
RESET INPUT (contact closure to common)  
Internal Pullup Resistor: 100 KΩ to +3.6 VDC  
High (logic 1): Open or 4-30 VDC  
Low (logic 0): Less Than .5 VDC  
Minimum On : 25 msec  
NOTE: Sustained contact closure will shorten  
battery life.  
K-FACTOR  
Range: 0.001 to 99999999  
Decimal Point Locations: XXXX.XXXX to XXXXXXXX  
NOTE: Battery shelf life is rated at 10 years by manufacturer  
Life expectancy based on rated battery capacity at 20°C  
The above table is shown with pulse output inactive. Use  
of pulse output shortens battery life.  
Example: A pulse output of 0.06 sec. duration, once per  
second, would derate the battery life by 20%.  
DISPLAY:  
Rate Display: (selectable decimal)  
5 Digits (99999), 0.35" High, Display updates once per second 20 POINT LINEARIZATION -LIN OPTION  
with battery power, 8X per second with DC or Loop power  
This feature allows the user to enter 20 different frequencies  
Rate Descriptors: /SEC, /MIN, /HR  
with 20 different corresponding K-Factors to linearize non linear  
signals.  
Min. Input Frequency: 0.01 Hz to 10 Hz (selectable delay of 0.1  
to 99.9 seconds)*  
Selectable Rate Display Damping  
ANALOG OUTPUT -MA OPTION:  
Totalizer Display: (selectable decimal)  
8 Digits (99999999), 0.2" High  
Totalizer Descriptors: GAL, LIT, FT3, M3, "blank"  
Warning Displays: Low battery warning  
Type: 4-20 mA follows rate display, Two wire hookup  
Accuracy: 0.025% Full Scale at 20° C  
Temperature Drift: 50 ppm/°C Typical  
Reverse Polarity Protected  
Update Rate: 8 times/second  
NOTE: The DPF500 uses the 4-20 mA loop power as its primary  
power source when this option is used. The battery is still  
required for standby battery operation.  
PULSE OUTPUT:  
The pulse output advances with the least significant digit of the  
totalizer or decimal multiples there of (see Pulse scale divider).  
Type: Isolated photomos relay  
Max. voltage (off state): 30 VDC  
Current (on state): 100mA  
DATA STORAGE:  
Pulse Duration: Selectable 0.5, 0.25, 0.125, 0.0625 seconds  
Pulse Scale divider (Pulscale): User selectable, ÷1, ÷10, ÷100  
or OFF  
Setup Information: Stored in flash memory  
Totalizer: Stored in battery backed RAM but can be saved to  
flash memory by operator for recall after battery change out.  
NOTE: Select OFF for max. battery life.  
ACCURACY:  
0.01% Reading, ±1 count  
Temperature Drift: 50 ppm/°C Worst Case  
* A large delay setting and internal math operations may delay the update rate.  
12  
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 OMEGAS 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 2005 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.  
Where Do I Find Everything I Need for  
Process Measurement and Control?  
OMEGA…Of Course!  
Shop online at omega.com  
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