General Description - Velleman DVM853 Mode D'emploi

 Never use the meter with CAT II installations when measuring voltages
that might exceed the safety margin of 500 V above earth ground.
Never use the meter with CAT III installations when measuring voltages
that might exceed the safety margin of 300 V above earth ground.
 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

Refer to the illustration on page 2 of this manual:
1. Display
3 ½ digits, 7 segments, LCD: 54 x 27 mm
2. Hold button
3. Backlight button
4. Function button
5. "VmA" jack
Insert the red (positive) test lead in this connector to measure voltage,
resistance and current (except 10 A).
6. "COM" jack
Insert the black (negative) test lead.
7. "10A" jack
Insert the red test lead in this connector in order to measure a max.
current of 10 A.
7. Overvoltage/Installation Category
DMMs are categorized depending on the risk and severity of transient
overvoltage that might occur at the point of test. Transients are short-lived
bursts of energy induced in a system, e.g. caused by lightning strike on a
power line.
The existing categories according EN 61010-1 are:
A CAT I-rated meter is suitable for measurements on protected
CAT I electronic circuits that are not directly connected to mains power, e.g.
electronics circuits, control signals...
V. 01 – 04/12/2017
DVM853
6 ©Velleman nv