Instructions

9
Now you can already insert batteries and carry out a first test
run without the housing.
Install thereafter the circuit board with the spacers in the hous-
ing. Four of the six screws simultaneously hold the filter disc,
which is previously placed on the housing from the outside
so that the four mounting holes fit over those of the housing.
Before tightening all screws, check that all parts are seated cor-
rectly. The push-button switches should be freely movable and
the filter disc should be positioned centrally above the display
field.