Operation of the Transmitter Yamatake Corporation
5-10 ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter
Procedure 2
Perform zero-point calibration, using this procedure:
Zero point calibration by SFC operation
Check that the transmitters input is 0 kPa and its output is 0%.
3 Decrease to zero, the differential pressure applied to the transmitter.
• Gradually open the high-pressure side stop valve to lead process pressure
into the pressure receiving part of the transmitter.
• In this state, equal pressure is applied to the high-pressure side and the low-
pressure side of the transmitter (equal pressure state).
4 Check for pressure leaks in the connecting pipe, the 3-way manifold valve,
and the transmitter.
Step Description SFC screen
1 Turn ON the power switch of the
SFC. After making sure that the
process is in the manual control
mode, press the key.
2
Press the key.
3
Press the and keys in
that order.
Step Description
ENTER
( Yes )
NON-VOL
LOOP IN MANUAL?
PRESS ID
A
ID
DE READ
DSTJ TAG NO.
LIN DP FIT-1234
SHIFT
OUT-
J
PUT
INPUT
SHIFT-
INPUT FIT-1234
WORKING...
INPUT FIT-1234
0.0000 kPa
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