WIKA UPT-21 - Handbuch (Seite 29)

29 WIKA operating instructions process transmitter, model UPT-2x
14068347.01 06/2014 GB/D
GB
8. Configuration without display and operating unit
8. Configuration without display and operating unit
8.1 Performing a mounting correction (offset)
The mounting correction corrects a zero offset in the output signal by defining a new
zero point. The zero offset is caused by the mounting position.
Correction range: ±20 % of maximum measuring range
Required tool: Multimeter (ammeter)
1. Screw off the case head cover and pull out the push-on cap.
2. Press [Zero] for approx. 2 s (e.g. with measuring tip of a multimeter).
Mounting correction successful: Control diode lights up for 2 s.
Mounting correction unsuccessful: Control diode blinks 5 times.
3. Check the output signal as follows.
CAUTION!
Incorrect connection.
A short circuit will destroy the process transmitter.
- Ensure that the multimeter does not come into contact with the positive
power supply terminal.
■ Set the multimeter to current measurement.
■ Connect the positive measuring line of the multimeter to the test contact.
■ Connect the negative measuring line of the multimeter to the negative power
supply terminal.


 Control diode
 Mounting correction, [Zero] key
 Test contact
 Positive power supply terminal +
 Negative power supply terminal –

 