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Troubleshooting
In purchasing the DMM, you have acquired a product which has been designed to
the state of the art and is operationally reliable.
Problems and malfunctions may, however, still arise.
For this reason, the following is a description of how you can eliminate possible
malfunctions yourself.
Please observe the safety instructions!
Error
Possible cause
The multimeter
Is the battery flat or is the high-cap
doesn't function
(VC290) discharged?
No measured
Is the wrong measurement function
value change.
active (AC/DC)?
Did you use the wrong measuring
sockets?
Is the fuse defect?
Is the Hold function activated in the
VC290 (display "H")
Repairs other than those described should only be carried out by an authorised
specialist. Proceed to page 28 where you will find the section with the Full Service
Hotline.
Technical Data
Display . . . . . . . . . . . . . . . . . . . . . . . . . . .4000 Counts (digits), 2000 Counts for VC250
Measuring rate . . . . . . . . . . . . . . . . . . . . .approx. 2-3 measuring operations/second
Measuring lead length . . . . . . . . . . . . . . . .approx. 90 cm each
Measuring impedance . . . . . . . . . . . . . . . .>10MΩ (V range)
Operating voltage . . . . . . . . . . . . . . . . . . .9V block battery (VC250/VC270)
Working conditions . . . . . . . . . . . . . . . . . .0 to 30°C (<75%rF), >30 to 40°C (<50%rF)
Operating altitude . . . . . . . . . . . . . . . . . . .max. 2,000 m
Storage temperature . . . . . . . . . . . . . . . . .-10°C to +50°C
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . .approx. 380 g
Dimensions (LxWxH) . . . . . . . . . . . . . . . .185 x 91 x 43 (mm)
Over-voltage category . . . . . . . . . . . . . . . .CAT III 600 V, Impurity level 2
Measurement tolerances
Statement of accuracy in ± (% of reading + display error in counts (= number of smallest points)). The
accuracy is valid for one year at a temperature of +23°C ± 5°C, and at a relative humidity of less than
75 %, non-condensing.
48
All manuals and user guides at all-guides.com
High-cap/Solar cell (VC290)
Remedy
Check the status. Change the battery or
charge the device.
Check the display (AC/DC)
measurement value change and switch
the function if necessary.
Compare the connection with that shown
in the display.
Check the fuses.
Press the "H" button to deactivate this
function.
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