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4.2.3
COCl
2
and SO
2
Generator (see Picture 3)
1 Unplug the external battery (COCl
2
only).
2 Loosen the 4 screws on the backside of the instrument and separate the two halves. (Use
caution as the LED’s are attached to the top case)
3 Remove the battery.
4 Push back the 2 isolation tubes and unsolder the generator cell from the wires.
5 Unscrew the clamp (KS) and push the generator cell backwards. Remove old generator
cell.
6 Insert the new generator cell and fasten the clamp.
7 Solder the wires to the new generator cell (polarity of no importance) and push the
isolation tubes back over the connections.
8 Insert the battery.
9 Close the housing and tighten the screws in the back. Reconnect the external battery pack.
Note:
) Whenever you have done maintenance work on a gas generator, test the function with a
working gas detector. The detector should give an alarm within 10 seconds.
13