ABB STT04 - Sensor Trim; Full Trim

600T & 600T EN PRESSURE TRANSMITTER
CALIBRATION
Q - 18
Sensor Trim
This procedure allows calibration of the pressure sensors for 600T
EN pressure transmitters. Selections available are FULL TRIM,
ZERO TRIM, FACTORY TRIM and STATIC TRIM.
FULL TRIM
Use this option if both LOW (min.) and HIGH (max.) pressure settings
are to be calibrated.
Key Display Comments
This operation will cause a change in output not cor-
responding to the input. Be sure the control loop is in
manual.
Select YES.
Select SENSOR TRIM, or select calibration option
with down-arrow key and refer to the appropriate
section. Press
when done.
Select FULL TRIM.
Enter the low calibration pressure value using the
number keys and press . Similarly, enter the
high calibration pressure value, then press .
Apply the low calibration pressure to the input of
transmitter as specified earlier.
Apply the high calibration pressure to the input of
transmitter as specified earlier.
CALI-
BRATE
ENTER
OUTPUT WILL BE
AFFECTED! PROCEED?
NO
→ YES
ENTER
→ SENSOR TRIM
D-TO-A ADJUST
PV BIAS
SET OUTPUT %
ENTER
ENTER
→ FULL TRIM
ZERO TRIM
FACTORY TRIM
STATIC TRIM
ENTER
LOW CALIB PRESSURE
nn.nn UNITS
HIGH CALIB PRESSURE
nn.nn UNITS
ENTER
ENTER
ENTER
APPLY PRESSURE OF
nn.nn UNITS
THEN HIT ENTER
ENTER
APPLY PRESSURE OF
nn.nn UNITS
THEN HIT ENTER