Velleman DVM810, User Manual

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DVM810 VELLEMAN 4
3.1. DC VOLTAGE
Range Resolution Accuracy
200mV 100µV ±0.25% of rdg ± 2 digits
2000mV 1mV
20V 10mV
200V 100mV
500V 1V
±0.5% of rdg ± 2 digits
Overload protection : 220Vrms AC for the 200mV range and 1500V DC or 500Vrms AC for other ranges.
3.2. AC VOLTAGE
Range Resolution Accuracy
200V 100mV ±1.2% of rdg ± 1 digit
500V 1V ±1.2% of rdg ± 1 digit
Overload protection : 500V DC or 500V rms for all ranges.
Response : average response, calibration in rms of a sine wave.
Frequency range : 45Hz – 450Hz
3.3. DC CURRENT
Range Resolution Accuracy
200µA 100nA
2000µA 1µA
20mA 10µ A
±1.0% of rdg ± 2 digits
200mA 100µA ±1.2% of rdg ± 2 digits
10A 10mA ±2.0% of rdg ± 2 digits
Overload protection : 200mA 250V fuse (10A-range is not fuse-protected)
Measuring voltage drop : 200mV
3.4. RESISTANCE
Range Resolution Accuracy
200
Ω
100m
Ω
2000
Ω
1
Ω
20k
Ω
10
Ω
200k
Ω
100
Ω
±0.8% of rdg ± 2 digits
2000k
Ω
1k
Ω
±1.0% of rdg ± 2 digits
Max. open circuit voltage : 2.8V
Overload protection : max. 220Vrms for 15 seconds on all ranges
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
Ω
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.