DVM821
V. 03
–
20/03/2020
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
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
