14
7 Calibration
Required
aids
- pressure generator
- reference pressure measuring device
- supply for pressure /differential pressure transmitter
- voltmeter/ammeter (multimeter)
Setup
Calibrating ✱ Open instrument ➩ "Opening the instrument", page 11.
✱ Connect supply voltage ➩ "Connection", page 12ff.
✱ Connect multimeter ➩ "Connection", page 12ff.
✱ Wait for instrument to warm up (approx. 1 hour).
✱ Set zero:
With open pressure connections, set display value of multimeter to 0 V
(with current output to 0(4) mA) by using the potentiometer TP1.
✱ Set nominal pressure:
Apply nominal pressure to instrument at the “+” pressure connection.
Using the potentiometer TP2, set display value of multimeter to 10 V
(to 20 mA with current output).
Only adjust the instrument potentiometers listed in the instructions
below! The other potentiometers are factory-set and must not be
adjusted!
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