12. Cleaning and maintenance
a) General information
• To ensure the accuracy of the meter over a long period of time, it should be calibrated at
least once a year.
• The meter is absolutely maintenance-free except for occasional cleaning and battery change.
• Regularly check the device for technical safety, for example, for damage to the casing or
deformation, etc.
b) Cleaning the casing
• Always observe the following safety information before cleaning the device:
• Do not use abrasive detergents, petrol, alcohol or other similar chemicals
to clean the device.
These may corrode the surface of the meter. In addition, the vapours emitted by these sub-
stances are explosive and harmful to your health. Do not use sharp-edged tools, screwdrivers
or metal brushes to clean the device.
• To clean the device and the display, use a clean, lint-free, antistatic and slightly damp clean-
ing cloth. Allow the device to dry completely before using it again.
c) Cleaning the probe
• Rinse the probe with clean tap water after each measurement.
• Wipe the probe dry with a soft, lint-free cloth. Place the protective cap on the probe head
after each cleaning.
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