Velleman DVM1500 - Manual (Page 9)

DVM1500
V. 03 – 04/11/2013 9 ©Velleman nv
Voltage Measurements
Do not measure circuits where voltages > 600 V CAT III or
> 1000 V CAT II may reside.
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. Do not touch unused terminals when the meter is
linked to a circuit that is being tested.
1. Connect the red test lead to “VΩ °CHz” jack and the black test lead to
the “COM” jack.
2. Set the rotary switch to V for DC measurements or to V for AC
measurements.
3. Press the RANGE button to manually select the range.
4. Connect the test probes to the source being measured.
The measured value appears on the display.
Note: For DC measurements: if a negative polarity is present at the red test
probe, the indicated value is preceded by a “–” sign.
Resistance Measurements
Do not perform resistance measurements on live circuits.
1. Connect the red test lead to “VΩ °CHz” jack and the black test lead to
the “COM” jack.
2. Set the rotary switch to “Ω”.
3. Press the RANGE button to manually select the range.
4. Connect the test probes to the source being measured.
The measured value appears on the display.
Notes:
Never perform resistance measurements on a live circuit and make sure all
capacitors are completely depleted.
To increase accuracy when measuring low resistance values, first hold the
tips of the test probes together to determine the resistance value of the
test leads. Subtract this value from the measured value of the circuit.
For resistance measurements above 1 MΩ, the meter needs a few seconds
to stabilize the readout.
If the measured resistance exceeds the current range or in case of an open
circuit, the display shows “OL”.
Continuity Measurements
Do not perform continuity tests on live circuits.
1. Connect the red test lead to “VΩ °CHz” jack and the black test lead to
the “COM” jack.
2. Set the rotary switch to .
3. Press the FUNC button to select continuity test .
4. Connect the test probes to the source being measured.
If the measured resistance is less than 40 Ω, the buzzer sounds