Why is there no output signal?

a. No supply voltage

To do:

1. Check and correct supply voltage

b. Cable break, incorrect connection

To do:

1. Check and correct connecting cables

c. No input pressure

To do:

1. Check and correct connection to the pressure medium

d. Fault in pressure transmitter, caused by impermissible operating conditions

To do:

1. Replace transmitter

What to do with defective pressure sensor?

a. Water inside the pressure sensor

To do:

1. Unscrew sensor top
2. Check for water and/or sign of corrosion
3. Replace seal and allow time to dry. Replace if corroded

What can I do to output signal stays constant, even though the pressure changes?

a. Measurement system of the instrument has been destroyed by excessive pressure

To do:

1. Replace transmitter

b. Output signal from the pressure transmitter is being distorted by the current limiting, resulting from overvoltage

To do:

1. Provide the correct supply voltage

c. Measurement point is blocked

To do:

1. Check measurement point
2. If necessary clean or replace it

How can the output signal be too high?

a. Selected measurement range is too low

To do:

1. Replace transmitter

b. The electronics of the pressure transmitter is faulty, or the supply voltage is too high

To do:

1. Replace transmitter

How can the output signal be too low?

a. With current output signal: burden is too high with voltage output signal: burden is too low

To do:

1. Change the burden on the measurement circuit

b. Supply voltage is too low

To do:

1. Alter the supply voltage

Why is zero of the output signal wrong?

a. Pressure transmitter measurement has shifted because of impermissible operating conditions (e.g. overpressure)

To do:

1. Replace transmitter

How to fix the output signal characteristic when it is not linear?

a. Pressure transmitter measurement has shifted because of impermissible operating conditions (e.g. overpressure)

To do:

1. Replace transmitter