Fuji Electric FCX-AII-V5 series Instructions Manual And Service Instructions page 99

In case of absolute and gauge pressure transmitter (FKA and FKG)
(1) Remove the 4 hexagon sockets
head bolts
(2) The process covers, the O-ring and the
bolts and nuts can now be removed
(3) After disassembly, replace the faulty
part with a new one
(4) Before reassembly, clean carefully
the O-ring face of casing cover with
the soft cloth immersed in water, al-
cohol, or similar
(5) Reassemble the detecting unit by reversing the disassembling procedure.
The torque of the bols of the process covers are indicated in the following table :
Absolute pressure transmitter FKA :
Bolt size
M10
M10
M10
Gauge pressure transmitter FKG :
Bolt size
M10
M10
M12
M12
M16
(6) After assembly, carry out a pressure test. Apply a pressure equal to 150% of the maximum
surement chamber of the transmitter simultaneously during 15 minutes, and make sure
there is no leakage.
To avoid any damage of the measuring cell, do not exceed the test pressure
!
Caution
of the different cells (please refer to the technical datasheets of the concerned
Remember !
transmitter)
TN5FCXA2V5h-E
Bolt material Tightening torque
Cr-Mo steel
SS 316
SS 630
Bolt material Tightening torque
Cr-Mo steel
SS 316
Cr-Mo steel
SS 660
SS 660 110 N.m
Nut
Maximum working pressure
50 N.m
30 N.m
50 N.m
Maximum working pressure
50 N.m
30 N.m
60 N.m
60 N.m
Seal diaphragm
Gasket
Oval flange sureface
Measurement
chamber cover
Bolt
30 bar
30 bar
30 bar
500 bar
100 bar
500 bar
500 bar
500 bar
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