ABB STT04, Инструкция по эксплуатации

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PTH PRESSURE TRANSMITTER
CALIBRATION
D - 5
CALIBRATION
This section details the PTH pressure transmitter calibration functions
using an STT04 terminal. There are three types of calibration func-
tions:
•
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 D-2 for an overview of the calibration functions.
Figure D-2. Calibration Flowchart (PTH)
T 01 3 40 A
D IG ITA L
A N A LO G
C A L IB R ATIO N
C O M P L E T E
B E N C H
R E Z E RO
E N T E R L OW
C A L IB R AT IO N
P R E S S U R E
D -T O -A
C A L
M E TH O D
C A L
M E TH O D
A R RO W
K EY S
A R RO W
K EY S
M E T ER VA L U E
E N T RY
M E T ER VA L U E
E N T RY
A D JU S T
O U T PU T
TO 4 m A
A D JU S T
O U T PU T
TO 4 m A
A D JU S T
O U T PU T
TO 20 m A
A D JU S T
O U T PU T
TO 20 m A
4 m A
C A L IB R ATIO N
E N T E R M ET E R
VAL U E 4 .0 0 0
4 m A
C A L IB R ATIO N
E N T E R M ET E R
VAL U E 4 .0 0 0
20 m A
C A L IB R ATIO N
E N T E R M ET E R
VA L U E 2 0.00 0
20 m A
C A L IB R ATIO N
E N T E R M ET E R
VA L U E 2 0.00 0
E Q UA LIZ E
P R E S S U R E
E N T E R H IG H
C A L IB R ATIO N
P R E S S U R E
R E ZE RO
C O M P L E T E
A P P LY L O W
C A L IB R ATIO N
P R E S S U R E
C
A
L
I
B
R
A
T
E
A P P LY H IG H
C A L IB R ATIO N
P R E S S U R E