ABB STT04 Instruction Manual page 11

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
C A LI-
B R ATE
E N TE R
E N TE R
E N TE R
E N TE R
E N TE R
E N TE R
Display
OUTPUT WILL BE
AFFECTED! PROCEED?
NO
→ YES
→ SENSOR TRIM
D-TO-A ADJUST
PV BIAS
SET OUTPUT %
→ FULL TRIM
ZERO TRIM
FACTORY TRIM
STATIC TRIM
LOW CALIB PRESSURE
nn.nn UNITS
HIGH CALIB PRESSURE
nn.nn UNITS
APPLY PRESSURE OF
nn.nn UNITS
THEN HIT ENTER
APPLY PRESSURE OF
nn.nn UNITS
THEN HIT ENTER
ADDENDUM
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
when done.
section. Press
ENTER
Select FULL TRIM .
Enter the low calibration pressure value using the
number keys and press
ENTER
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.
. Similarly, enter the
.
ENTER
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