Bedienungsanleitung Velleman DVM894 (Seite 5 von 110) (Deutsch, Englisch, Holländisch, Französisch, Portugiesisch, Spanisch, Polnisch)

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DVM894

V. 01 – 21/01/2015 5 ©Velleman nv

When using the mA terminal: do not measure current in circuits with

voltages > 250 V.

When using the 10A terminal: do not measure current in circuits with

voltages > 500 V.

Disconnect circuit power and discharge all high-voltage capacitors before

testing resistance, continuity, capacitance or diodes. For transistor tests,

use the included transistor socket.

In TV repair work or when carrying out measurements on power switching

circuits, remember that high-amplitude voltage pulses at the test points

can damage the meter. Use of a TV filter will attenuate any such pulses.

Do not replace internal parts yourself. Replace damaged or lost

accessories by identical ones with the same specifications. Order spare

accessories, e.g. test leads, from your dealer.

Switch off the meter and remove test probes prior to replacing the

battery or fuses.

All modifications of the device are forbidden for safety reasons. Damage

caused by user modifications to the device is not covered by the

warranty.

 If the meter is used near a source of electromagnetic interference, the display

may become unstable or may indicate large errors.

 Use the meter only as specified in this manual; otherwise, the protection

provided by the meter may be impaired.

 Use extreme caution when working around bare conductors or bus bars.

 Do not operate the meter near explosive gases, vapour, or dust.

 Verify the meter’s operation by measuring a known voltage. Do not use the

meter if it operates abnormally. Protection may be impaired. When in doubt,

have the meter serviced by a qualified technician. Make sure the device cannot

be used until it is repaired.

 When making connections, connect the common test lead (black) before

connecting the live test lead (red). When disconnecting, disconnect the live test

lead (red) before disconnecting the common test lead (black).

 Before changing functions or measuring range, disconnect the test leads from

the circuit under test.

 For all DC functions, to avoid the risk of shock due to possible improper

readings, verify the presence of any AC voltages first by using the AC function.

Then select a DC voltage range equal to or greater than the AC range.

 Use a 9 V battery, properly installed in the meter’s battery case, to power the meter.

 Replace the battery as soon as the battery indicator appears. With a low

battery, the meter may produce false readings that can lead to electric shock

and personal injury.

 Do not operate the meter with the case (or part of the case) removed.

 Always verify that all connections are reliable and safe.

 Avoid body contact with ground potential (e.g. metallic terminals, output

sockets, lead clamp…) while measuring. Make sure to be electrically insulated

from ground during measurement.

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