ABB STT04 Instruction Manual page 12

Smart transmitter terminal
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ZERO TRIM
Use this option if only the LOW (min.) pressure setting is 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
APPLY 0 INPUT
TO SENSOR
THEN HIT ENTER
APPLIED ZERO INPUT:
value units
PRESS ENTER
TO CONTINUE
ID TAGNAME
READY
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 ZERO TRIM .
Apply the pressure equal to the zero value of the
instrument and press
ENTER
The instrument reads the pressure applied and dis-
plays its value. Press
ENTER
.
.
10

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