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Exchange of electronic insert FEL5x on Liquiphant M/S
The instrument may only be repaired and maintained by qualified personnel. The instrument documentation, applicable
0
standards, legal requirements and certificates must be observed!
Modular assemblies may only be exchanged against identical original Endress+Hauser spare parts !
It must be ensured that the supply voltage has been disconnected from the instrument before disassembly.
Ex i-instruments:
0
2
1
Ex d-instruments:
housing F15/ F16 / F17
(as example F15)
1
2
3
5
0
2
1
KA530F/00/a2/09.09
52005362
Ausgabe/revision: 7
The repair must be performed such that the voltage resistance of the Ex ia circuits relative to ground potential
is maintained. If required, a test can be performed with 500 Veff for 60 seconds.
The threads in the housing and on the lid must be checked.
In case of damage, the faulty part must be exchanged.
housing F13 / T13
(as example T13)
cover lock for
Ex certificate
EEx d, EEx de
disassembly support
(only for housing T13)
electronic insert
FEL5x
Any repair of a certified instrument must be documented!
This includes stating the serial number of the instrument, date of repair, type of repair and repair technician.
The following tools are required for the exchange:
• Screw driver M3
• Phillips screwdriver (Size 1)
1
Unscrew cover, if necessary loosen the cover lock.
2
Disconnect the cable.
3
Loosen the two holding screws of the electronic
insert and remove it.
Housing T13: using the disassembly support.
4
Align the sensor socket according to the figure below.
5
Insert the new electronic insert and tighten the
holding screws.
For housing T13, attach disassembly support.
Connect power supply and signal line to the electronic
insert according to the particular connection plan and
connect the internal ground to the housing.
A calibration of the instrument is not necessary.
4
view from the above
inside the housing
sensor socket
bushing
holding screws
Attention!
The sensor socket can easily be rotated.
To avoid any deformation of the plug connection,
make sure that the sensor socket is in the right position.
The sensor socket must be aligned to the bushing,
as shown in the figure.
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