Dc Voltage Measurements - Velleman DVM820 Bedienungsanleitung

2000mV
20V
200V
600V
3.2. AC VOLTAGE
Range
200V
600V
Overload protection
Response
Frequency range
3.3. DC CURRENT
Range
200µ A
2000µ A
20mA
200mA
10A
Overload protection
Measuring voltage drop
3.4. RESISTANCE
Range
200
2000
20k
200k
2000k
Max. open circuit voltage
Overload protection
4. Operating Instructions
4.1. WARNING
1. Do not measure voltages that exceed the earthing level by more than 500V in order to avoid all risks of
electroshocks or damage to the instrument.
2. Make sure the insulation of all test leads, probes and connectors is intact prior to activating the device.

4.2. DC VOLTAGE MEASUREMENTS

1. Connect the red test lead to the "V mA" jack and the black lead to the "COM" jack.
2. Place the RANGE switch in the appropriate VDC position. Set the switch to the highest range and work
your way down if the voltage range is unknown beforehand.
3. Connect the test leads to the device or circuit to be measured.
4. Activate the device or circuit to be measured. Both the voltage reading and the polarity will be displayed.
DVM820
1mV
10mV
100mV
1V
Resolution
100mV
1V
: 500V DC or 500V rms for all ranges.
: average response, calibration in rms of a sine wave.
: 45Hz – 450Hz
Resolution
100nA
1µ A
10µ A
100µ A
10mA
: 200mA 250V fuse (10A-range is not fuse-protected)
: 200mV
Resolution
100m
1
10
100
1k
: 2.8V
: max. 220Vrms for 15 seconds on all ranges
±0.5% of rdg ± 2 digits
Accuracy
±1.2% of rdg ± 1 digit
±1.2% of rdg ± 1 digit
Accuracy
±1.0% of rdg ± 2 digits
±1.2% of rdg ± 2 digits
±2.0% of rdg ± 2 digits
Accuracy
±0.8% of rdg ± 2 digits
±1.0% of rdg ± 2 digits
4 VELLEMAN