Sensor - Pentair HAFFMANS c-DGM Instruction Manual

9.3 *Replacing the O
The replacement set for the oxygen sensor includes a new sensor, O-rings and a special
screwdriver.
Procedure:
1) Rinse the c-DGM via the outlet with gas to dry the measuring chamber
(pos. 2) and the plunger block (pos. 26).
Warning
2) Place the c-DGM upside down on a soft, sturdy surface to prevent scratching
of the components.
3) Loosen the six screws (pos. 22) using the socket screw key from the service
set.
4) Remove the protective housing (pos. 06) from the plunger block (pos. 26) by
first loosening it over the hose connectors (pos. 17 & 18) and then pulling it
over the handle (pos. 20).
5) Use the special screw driver from the oxygen sensor set to loosen the four
screws (pos. 27).
6) Carefully pull the plunger block (pos. 26) directly off the c-DGM.
Warning
7) Push the oxygen sensor (pos. 23) upwards out of the plunger block (pos. 26)
Fig. 9.1
8) Put the two new O-rings (pos. 24) from the oxygen sensor set in the O-ring
grooves of the new oxygen sensor (pos. 23) and apply a light coat of silicon
grease (from the service set to the O-rings.
c-DGM/i-DGM

sensor

2
If there is still liquid in the plunger block, this liquid may enter
the electronics when the plunger block is removed.
If the plunger block is not pulled off evenly, the light guide in
the measurement chamber may be damaged.
, &&D E^ 'D 'D
Pos 29
Pos 28
Pos 26
Pos 23
Pos 24
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