Maintenance
Batteries
Inserting the batteries: Loosen the screw on the rear of the device and
open the battery compartment flap as shown.
Always insert all four batteries into the
compartment facing the same way. Note the
polarity markings on the inside of the battery
flap for correct battery installation.
Polarity marking
Sensor
Changing the filter: Screw the sensor tip off as shown to replace the filter.
Replace the filter as soon as soiling is visible or every
two to three months depending on use.
Replacing the sensor: Remove the sensor by pulling it out of the base.
Insert the new sensor by aligning the notch in the
sensor cover with the raised wedge groove on the
sensor base (see illustration below).
Note: Never use force to push the sensor into the base. Incorrect alignment
can damage the sensor pins.
Note: Do not dispose of batteries
and electrical devices with
household waste, heed
local regulations.
Push on straight
(do not twist)
Pull off straight
(do not twist)
Screw the tip off
to change the filter
Wedge groove alignment
12
Filter
- Power
+
- Power
+
- Power
+
- Power
+
- Power
+
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