General Description - Velleman DCM140 User Manual

• 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.
• Always hold the device behind the finger guard (see General
Description, nr. 12).
• Comply with the local and national safety regulations. Use personal
protective equipment, such as approved rubber gloves, face protection
and flame-resistant clothing, to prevent shock and arc blast injury
where hazardous live conductors are exposed.
• Do not use this device to measure a current with a frequency
above 1 kHz.
• Only use this device as specified in this manual in order not to
compromise the protection supplied by the device.

6. General Description

Refer to the illustration on page 2 of this manual:
1. NCV sensor
2. Clamp jaws
3. Flashlight
4. NCV LED indicator
5. Flashlight switch
6. Clamp trigger
7. Selection button
8. Backlight button
9. Display
3 ¾ digits
10. Function buttons
11. Input jacks
12. Finger guard
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.
V. 04 – 10/12/2019
DCM140
6 ©Velleman nv