Dc Voltage Measurements - Velleman DVM810 Manual Del Usuario

3.1. DC VOLTAGE
Range Resolution
200mV 100µ V
2000mV 1mV
20V 10mV
200V 100mV
500V 1V
Overload protection : 220Vrms AC for the 200mV range and 1500V DC or 500Vrms AC for other ranges.
3.2. AC VOLTAGE
Range Resolution
200V 100mV
500V 1V
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
200µ A 100nA
2000µ A 1µ A
20mA 10µ A
200mA 100µ A
10A 10mA
Overload protection : 200mA 250V fuse (10A-range is not fuse-protected)
Measuring voltage drop : 200mV
3.4. RESISTANCE
Range Resolution
200 100m
2000 1
20k 10
200k 100
2000k 1k
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 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.
DVM810
Accuracy
±0.25% of rdg ± 2 digits
±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