ABB STT04 - Sensor Trim

ADDENDUM
9
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 settin
g
s are to be calibrated.
Key Display Comments
This operation will cause a chan
g
e in output not cor-
respondin
g
to the input. Be sure the control loop is in
manual.
Select
YES
.
Select
SENSOR TRIM
, or select calibration option
with down-arrow ke
y
and refer to the appropriate
section. Press
when done.
Select
FULL TRIM
.
Enter the low calibration pressure value usin
g
the
number ke
y
s and press . Similarl
y
, enter the
hi
g
h calibration pressure value, then press .
Appl
y
the low calibration pressure to the input of
transmitter as specified earlier.
Appl
y
the hi
g
h 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