ABB STT04 - Calibration; Bench Calibration; Rezero; D-To-A Adjust

BCN PRESSURE TRANSMITTER
CALIBRATION
G - 5
CALIBRATION
There are three types of calibration functions:
• Bench calibration.
• Rezero.
• D-to-A adjust.
NOTES:
1. When calibrating, a field device must be connected to the
STT04 terminal.
2. To change calibration or configuration parameters of a field
device that is connected to an IMFBS01 module, the transmitter
must be taken off-line. This is done at the INFI 90 OPEN console.
Refer to Figure G-2 for an overview of the calibration functions.
NOTE: When calibrating, a field device must be connected to the
STT04 terminal.
Bench Calibration
This procedure details the bench calibration process.
Figure G-2. Calibration Flowchart (BCN)
T01330A
DIGITAL
ANALOG
APPLY LOW
CALIBRATION
PRESSURE
BENCH
D-TO-A
REZERO
ENTER
AMBIENT
TEMPERATURE
ADJUST
OUTPUT
TO 4 mA
ADJUST
OUTPUT
TO 20 mA
EQUALIZE
PRESSURE
ENTER
COMPENSATION
DATA
REZERO
COMPLETE
ENTER LOW
CALIBRATION
PRESSURE
APPLY HIGH
CALIBRATION
PRESSURE
ADJUST
OUTPUT
TO 4 mA
APPLY 50%
PRESSURE
ADJUST
OUTPUT
TO 20 mA
CALIBRATION
COMPLETE
C
A
L
I
B
R
A
T
E
ENTER HIGH
CALIBRATION
PRESSURE