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11. Cleaning and maintenance
Regularly cleaning and maintaining the device will ensure that it will have a long service
life and stay in good condition.
11.1 Changing the batteries
The device constantly monitors the charge level of the
63
batteries. The current battery status is shown on the
status screen.
If the battery´s charge is very low, the battery symbol will
be shown with an exclamation mark. In that case, the
batteries must be changed immediately (figure
63
).
64
For changing the batteries, see section
"3.3 Inserting
batteries"
.
As the device
’s user, you are responsible by law for pro-
perly disposing of all used batteries, which must not be
disposed of as domestic waste (Battery Directive).
11.2 Care instructions
• Do not leave the device out in the rain. The device is not waterproof.
• Do not immerse the sensor in water.
• Do not expose the device to extreme temperatures.
• Protect the device from strong mechanical shocks and loads.
11.3 Cleaning the device
ATTENTION
Do not clean with fluids
Water or cleaning fluid getting inside the device can destroy the device.
► Only clean with dry materials.
Plastic housing
Clean the plastic housing with a dry cloth.
Water activity measuring chamber
Clean the screw-top Nalgene jar with a cloth and cleaning alcohol.
The sensor cannot be cleaned. In case of a polluted sensor please contact your dealer.