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protech QM1571 User Manual

protech QM1571
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8
DC CURRENT MEASUREMENT
Do not measure 20A currents for longer than 30 seconds. Exceeding 30
seconds may cause damage to the meter and/or test leads.
1) Insert the black test lead banana plug into the negative COM jack.
For current measurements up to 4000μA DC, set the function switch to
the μA position and insert the red test lead banana plug into the μA
jack.
For current measurements up to 400mA DC, set the function switch to
the mA position and insert the red test lead banana plug into the mA
jack.
For current measurements up to 10A DC, set the function switch to the
10A position and insert the red test lead banana plug into the 10A jack.
2) Press the MODE button to show “DC” on the screen.
3) Remove power from the circuit under test, then open up the circuit at
the point where you wish to measure current.
4) Touch the black test probe tip to the negative side of the circuit.
5) Touch the red test probe tip to the positive side of the circuit.
6) Apply power to the circuit.
7) Read the current displayed on the screen.
AC/DC VOLTAGE MEASUREMENT
On some low AC and DC voltage ranges - when test leads are not
connected to a device - the display on the screen may show a random,
changing reading. This is normal and caused by high-input sensitivity of
the multimeter. When connected to a circuit, the multimeter will display
a stabilised, accurate measurement.
1) Set the function switch to the VAC or VDC position.
2) Insert the black test lead banana plug into the negative COM jack.
3) Insert the red test lead banana plug into the positive VΩCAP jack.
4) Use the Mode button to select AC or DC voltage.
5) Connect the test leads in parallel to the circuit under test.
6) Read the voltage in the display.

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protech QM1571 Specifications

General IconGeneral
Brandprotech
ModelQM1571
CategoryMultimeter
LanguageEnglish

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