Start Up And Shutdown; Preparation For Start Up - Fuji Electric FCX-AII-V5 Series Instructions Manual And Service Instructions

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START UP AND SHUTDOWN

3.1 Installation :
After installation (refer to chapter 6.1) and before start up of the transmitter, be sure to perform
the following checks and procedures.
Preparation :
(1) Check for liquid or gas leakage of the process connection by ap-
plying soapy water or similare.
(2) Check of the electrical connection according to the "Terminal block
connection diagram" shown in 7.1.
(3) Vent the process covers of the transmitter.
DANGER
The compatibility of process with the transmitter, has to be checked and ensured by skilled
people from customer side.
ATTENTION
(4) Perform zero point adjustment.
Zero point check
on the electronics housing without opening the covers of this housing and in case of adjustment
via HHC, the local wiring (connection) is not allowed.
Turn on the power to the transmitter.
Check the output signal of the transmitter by connecting a DC ammeter across CK+ and CK– of
the terminal block.
After ten minutes or longer, adjust the transmitter output current at 4 mA (zero adjustment).
(See below)
Zero adjustment:
Adjustment by zero adjustment screw
Zero adjustment is possible from outside screw on
electronic housing.
Adjust zero point of the transmitter to 4 mA by turning
the zero adjustment screw.
The higher you turn the screw, the quicker is the change
of the zero.
(Tightening torque: 20 N.m).
INDICATION
INF-TN5FCXA2V5e-E
fully the technical instruction note ATEX Ref.HDFCX-AII V5 002.
When the plant requires chemical cleaning at the start up operation, be
sure to close the isolating valves of the transmitter to avoid that cleaning
liquid or particules are introduced to the transmitter wetted parts.
After adjustment of the transmitter, it should be kept energized for about 10
seconds to write the adjustment results into memory.
Fine adjustment : turning slowly
(approximately 5sec per turn)
Rough adjustment : turning quickly
(approximately 1sec per turn)
Increase
Decrease
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