Manual Velleman DVM821 (page 5 of 75) (English, German, Dutch, French, Polish, Portuguese, Spanish)

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DVM821

V. 01 – 23/02/2016 5 ©Velleman nv

All modifications of the device are forbidden for safety reasons.

Damage caused by user modifications to the device is not

covered by the warranty.

Only use the device for its intended purpose. Using the device in

an unauthorized way will void the warranty. Damage caused by

disregard of certain guidelines in this manual is not covered by

the warranty and the dealer will not accept responsibility for any

ensuing defects or problems.

4. Maintenance

There are no user-serviceable parts inside the device.

Refer to an authorized dealer for service and/or spare parts.

 Before performing any maintenance activities, disconnect the test leads.

 For instructions on replacing battery or fuse, refer to 15. Battery and

fuse replacement.

 Do not apply abrasives or solvents to the meter. Use a damp cloth and

mild detergent for cleaning purposes.

5. During Use

Risk of electric shock during operation. Be very careful when

measuring live circuits.

 Never exceed the limit value for protection. This limit value is listed

separately in the specifications for each range of measurement.

 Do not touch unused terminals when the meter is linked to a circuit

which is being tested.

 Set the range selector at its highest position if the intensity of the

charge to be measured is unknown beforehand.

 Disconnect the test leads from the tested circuit before rotating the

range selector in order to change functions.

 When carrying out measurements on a TV set or switching power

circuits, always remember that the meter may be damaged by any high

amplitude voltage pulses at test points.

 Always be careful when working with voltages above 60 VDC or 30 VAC

rms. Keep your fingers behind the probe barriers at all times during

measurement.

 Never perform resistance, diode or continuity measurements on live

circuits. Make sure all capacitors in the circuit are depleted.

6. General Description

The DVM821 is a battery-operated, hand-held 3 ½ digital multi-meter for

measuring DC and AC voltages, DC current and resistance. It also offers the

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Velleman DVM821 Manual

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