Pressure Transmitter Calibrations - GE Druck TRX-II User Manual

Pressure Transmitter Calibrations

2-Wire transmitter; calibrator powered
Make a calibration hook-up as indicated. Switch the TRX-II calibrator
on to power the transmitter with 24 VDC.
Select PRESSURE in the source menu and mA/XMT in the measure
menu. Select the appropriate SENSOR in the source menu to read
your calibration pressure. Select DIRECT in the measure menu if
you want to read mA. Select CAL if you want to read the transmitter
source scaled in pressure units. Fill out the transmitter span and
select if the error between transmitter MEASURE and SOURCE has
to be displayed as a % of reading or as a % of span. Press EXE to
open the working screen. Use the key to prompt the pressure to
pump for 25% calibration points. Press the and keys to step
through these points.
The upper screen shows the milliamps signal converted into pressure
units. It also shows the error in percentage of the transmitter span in
smaller digits.
EN-32 K319 Issue 2