Aktakom ??M-1130, User Manual

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АМM-1130
43
Chapter 5 Maintenance
Replacement of Batteries
If symbol appears on the LCD screen during measurement, it indicates the total voltage of batteries being lower than
7V. For ensuring measurement accuracy, it is necessary to replace the batteries. Before the replacement, must take off the red
and black testing lines from the measured circuit and turn off the power of the meter. Loose the fixing screws of the cover by a
standard screwdriver, then remove the cover to take out all the old batteries, replacing them with the 7# batteries. Take care to
put in the batteries as the polarity specified on the shell of the meter. Put the cover as its origin. The meter must not be used
until the cover of batteries being put properly and locked in.
Replacement of Fuse
It must take off the red and black testing lines from the measured circuit and turn off the power of the meter before replacement
of fuse. It should only use fuse of the same model and the same electric specifications. Two fuses must not be put wrong in
positions during their replacement. And the meter must not be used until the cover of fuses being put properly and locked in.
Notes: generally, fuses will not be blown under the normal use of the meter. In case of blowing it is necessary first to find out
the reasons for the blowing and then take an account on the use of the meter. Generally, blowing may attribute to:
●
Perform voltage measurement when the rotary switch being in the position of current.
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Current exceeds range.
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Fuse being 0.25A/250V
， Ø5X20 (μA/mA end) and 10A/250V Ø6.2X32 (A end).