KA651F/00/a2/09.10
71032691
Ausgabe/revision: 2
0
1
2
The instrument may only be repaired and maintained by qualified personnel. The instrument documentation, applicable 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.
Exchange of on Gammapilot M FMG60NaI-crystal sensor assembly
Preparation
Disassembling of cooling tube (optional)
drain cooling fluid
unscrew cooling tube holder 6 screws AF10.
pull cooling tube off the Gammapilot
screw lids back on to the housing
loosen the 3 Allen screws approximately5-6turns.
firmly clamp Gammapilot at the wrench flat
(AF30) of the housing head with a vise.
Attention: do not damage the type plate
loosen the housing pipe with an oilfilter wrench or
strap and unscrew from housing (approx. 15 turns).
separate sensor assembly from electronics
oosen the 4 hex nuts AF8
pull sensor assembly off the electronics
sensor electronics, HV electronics photomultiplier
These parts are not available as individual spare parts and
can only be exchanged as a complete sensor assembly.
remove ring halves
carefully pull off housing pipe upwards
Mounting:
.
.
!
,
therefore l ( ).
.
The sensor assembly consists of NaI-crystal scintillator
and .
• Mounting has to be done in reverse order.
• For safety reasons, the original removed nuts may not be
re-used, new nuts must be installed!
Hint:
Before sliding the sensor assembly through the spacers
make sure that the connectors are in the same position.
.
if necessary, place gasket in the groove
of cooling tube again.
in order to
protect the threads.
.
Dismounting:
•
• (only for cooling tube)
•
•
•
The exchange requires the following tools:
open ended wrench AF8
open ended wrench AF10
vise / open ended wrench AF30
Allen wrench AF2
strap wrench / oil filter wrench
1
4
1
5
3
2
10
8
9
6
7
12
11
2
1
5
3
4
7
6
10
8
9
11
12
electronics
sensor assembly
connection