User manual

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12. CLEANING AND MAINTENANCE
a) General
You should calibrate the multimeter once each year to guarantee measuring accuracy for
years to come.
The product is maintenance-free apart from occasional cleaning and replacing the batteries.
Instructions on replacing the batteries are included below.
Regularly check the technical safety of the device and test leads — i.e. auf
damages to the housing or pinching, etc.
b) Cleaning
Read and observe the following safety instructions before cleaning the device:
Opening any covers on the product or removing parts – unless this is
possible by hand – may expose voltage-carrying components.
Disconnect the test leads from the DMM and all test objects before cleaning
or maintenance.Turn the DMM off.
Do not use any abrasive cleaners, benzine, alcohol or the like for cleaning. Such substances
may corrode the meter‘s surface. Moreover, the fumes are harmful and explosive. Do not use
sharp-edged screwdrivers, metal brushes or similar for cleaning.
Use a clean, lint-free, antistatic and slightly damp cleaning cloth to clean the device, the
display and the test leads. Let the meter dry completely before further use.
c) Inserting and replacing the batteries
Three1.5Vmicrobatteries(i.e.AAAorLR03)arerequiredtooperatethedevice.Beforerst
use or when the change battery symbol appears
in the display, you must insert a new,
full battery.
The change battery symbol has various display levels which you can see in the following table: