Voltcraft Digital-Multimeter, DMM, VC-5080 Hoja De Datos

With the multimeter, you have purchased a reliable product developed using state-of-the-art technology.
Nonetheless, errors and malfunctions may occur. 
Please review the following for information on troubleshooting should problems occur:

The multimeter is not working.

Is the power indicator on?

Are batteries used up? 

Check the state of the 9 V battery and the fuse.

Resistance measurement not possible.

Are batteries used up? Check the state of both mignon (AA) batteries 

and the fuse.

No measurement using the V/mA socket 

(7) is possible.

Is the fuse defective?

Check the fuse F 0.5 A/500 V (replacing the fuse).

No measurement using the 10A socket 

(4) is possible.

Is the fuse defective?

Check the fuse F 10 A/500 V (replacing the fuse).

There is no change of the measured 

value.

Are the correct measuring sockets selected?
Is the correct measuring function selected (AC/DC)?

The multimeter is showing incorrect 

readings.

Was the display zeroed (zero adjustment/zero ohm adjustment for 

resistance measurement) before measuring?
Is the "Vrms/Vp-p" button (9) pressed?