Maintenance And Cleaning - VOLTCRAFT VC-890 Bedienungsanleitung

6. Now press the SHIFT/SETUP button several times until the menu item "AUTO BRIGHTNESS" is
selected. An asterisk symbol * to the left of the menu item shows that the menu item is selected.
7. Press the REL/PC (Log/◄) or MAX/MIN (View/►) button to select "ON" or "OFF".
8. The "ON" setting means that the energy saving mode is activated. The brightness of the display
will be automatically reduced during inactivity.
9. The "OFF" setting switches off the energy saving mode.
10. Hold down the SHIFT/SETUP button for approx. 2 sec to save the setting and exit the SETUP
menu. You will also exit SHIFT mode.

23. MAINTENANCE AND CLEANING

a) General
Calibrate the multimeter annually to guarantee the accuracy of the multimeter over a longer period
of time.
The measuring device is absolutely maintenance-free except for occasional cleaning and the
replacement of fuses.
You can find the fuse and battery replacement instructions below.
Regularly check the technical safety of the device and the test leads, for example
damage to the housing, pinching of the test leads, etc.
b) Cleaning
Always observe the following safety instructions before cleaning the device:
Live components may be exposed when covers are opened or components are
removed, except if this can be done by hand.
The connected lines must be disconnected from the measuring device and all
measuring objects prior to cleaning or repairing the device. Turn off the DMM.
Do not use cleaning agents which contain carbon, petrol, alcohol or similar substances for cleaning
purposes. These could corrode the surface of the measuring device. Furthermore, the fumes are
hazardous to your health and explosive. You should also not use sharp-edged tools, screwdrivers, or
metal brushes or similar for cleaning.
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