Pressure Sensor - GE Druck TRX-II User Manual

Pressure Sensor

Installation of a new pressure sensor
To add a new sensor specific data must be entered in the TRX-II
memory. This is to correct the sensor linearity and hysteresis in the
TRX-II calibrator. Each new sensor is delivered with the following
data;
• Serial No.
• Range in mbar.
• Correction factor # A (C1).
• Correction factor # B (C2).
• Correction factor # C (C3).
• Correction factor # D (C4).
• *Correction factor # A (C1) negative.
• *Correction factor # B (C2) negative.
• *Correction factor # C (C3) negative.
• *Correction factor # D (C4) negative.
* Only applies for ranges up to 500 psi
Plug the connector in the calibrator and switch the unit on. Leave the
cursor at NONE at the measure and source menu and press # and
EXE simultaneously to open the set-up menu. Select Pressure
Sensors and press EXE. Select ADD and press EXE. Select free
memory spot and press EXE. The menu will lead you through the
different screens to be filled in. The required data is sent standard
with every pressure sensor from the factory. Before you can enter
the new sensor data, the TRX-II screen shows you the data text lines
as it is. Press CE to leave the installation setup or press EXE to
change the actual data by filling out each line. After you have
entered the new data in the EEPROM the screen will return to the
sensor selection menu. To verify the new entered data, select the
applicable sensor again and press EXE. Press CE to leave the
installation menu.
Calibration of a new sensor
The calibration procedure should always be done after adding a new
sensor. The CALIBRATION menu is part of the pressure sensor
menu.
The menu driven software leads the operator through the procedure
which requires actual pressures to be applied.
Sensor recalibration
To recalibrate a sensor you need a sufficient accurate pressure
calibrator. Accuracy should be 3 times better than for the 100%
EN-40 K319 Issue 2