D) Direct Current Measurement - VOLTCRAFT VC-5080 Bedienungsanleitung

d) Direct current measurement

Never exceed the maximum permissible input value for each measuring range.
The maximum permissible voltage in the circuit against ground potential may not exceed 500 V in
CAT III.
In the current measuring range, always shut off the circuit before connecting/disconnecting the
test leads. Risk of electric shock!
Proceed as follows to measure direct currents up to 10 A/DC:
- Turn the rotary switch to the measuring range 10A
- Connect the black test lead to the COM socket (6) and the red test lead to the 10A
socket (4).
- Zero the multimeter using the adjustment screw (3).
- Make sure that the "Vrms/Vp-p" button (9) is not pressed.
- Verify correct polarity (red = positive potential (+) / black = negative potential (-))
and connect both test leads in parallel to the measuring object (battery, circuit,
etc.).
- In case of reverse polarity, no value will be shown. The protective diode blocks
measurement. Interrupt the measurement and correct polarity before repeating the measurement.
- Read the measured value from the "A" scale.
- After measurement, turn the rotary switch to position "OFF" to turn off the multimeter.
Proceed as follows to measure direct currents up to 250 mA/DC:
- Select the appropriate measuring range for measurements in the mA/µA range.
- Connect the black test lead to the COM socket (6) and the red test lead to the mA
socket (7).
- Zero the multimeter using the adjustment screw (3).
- Make sure that the "Vrms/Vp-p" button (9) is not pressed.
- Verify correct polarity (red = positive potential (+) / black = negative potential (-))
and connect both test leads in parallel to the measuring object (battery, circuit,
etc.).
- In case of reverse polarity, no value will be shown. The protective diode blocks
measurement. Interrupt the measurement and correct polarity before repeating the measurement.
- Read the measured value from the "A" scale.
- After measurement, turn the rotary switch to position "OFF" to turn off the multimeter.
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