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DIFFERENTIAL PRESSURE TRANSMITTER - USER GUIDE
3. 4-20 mA
a. 4-20 mA Output failures:
i. Verify that you are providing enough power and the load
resistance meets normal working requirements.
ii. Check the unit for damage or malfunction.
iii. Verify the wiring for the 4-20 mA model is correct.
iv. Verify that the ID is set to 0 for 4-20 mA output.
b. The device is reporting incorrect measurements:
i. Verify the wiring using the provided diagrams and ensure a
good connection.
ii. If pressure values are dropping, ensure that there is a proper
seal between connections to prevent leakage. If the pressure
values remain that same even while applying/increasing
pressure, ensure there is nothing blocking the pressure.
iii. Zero the unit under atmospheric conditions.
iv. If values are larger or outside the anticipated range, verify
that the configured range settings are correct or preform the
appropriate calibration.
Determining if there are temperature fluctuations in the
installation can also help identify what could be causing these
values.
c. How to escape the advanced settings mode:
i. If the device is held in advanced settings mode or has an
"Expert" message showing on all screens, first disconnect
power from the device. Clear out any possible obstructions
that may be jammed or compressing the 2 button and then
power the device back on. Upon start up there should be no
"Expert" message displayed.
4. 1-5 V
a. 1-5 V Output failures:
i. Verify that you are providing enough power and the load
resistance meets normal working requirements.
ii. Check the unit for damage or malfunction.
iii. Verify the wiring for the 1-5 V model is correct.
iv. Verify that the ID is set to 0 for 1-5 V output.
b. The device is reporting incorrect measurements:
i. Verify the wiring using the provided diagrams and ensure a
good connection.
ii. If pressure values are dropping, ensure that there is a proper
seal between connections to prevent leakage. If the pressure
values remain that same even while applying/increasing
pressure, ensure there is nothing blocking the pressure.
iii. Zero the unit under atmospheric conditions.
iv. If values are larger or outside the anticipated range, verify
that the configured range settings are correct or preform the
appropriate calibration. Determining if there are temperature
fluctuations in the installation can also help identify what
could be causing these values.
c. How to escape the advanced settings mode:
i. If the device is held in advanced settings mode or has an
"Expert" message showing on all screens, first disconnect
power from the device. Clear out any possible obstructions
that may be jammed or compressing the 2 button and then
power the device back on. Upon start up there should be no
"Expert" message displayed.
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