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protech QM1527 User Manual

protech QM1527
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4) Touch the test probe tips across the circuit or the part under test. It’s
best to disconnect one end of the circuit, so the rest of the circuit will
not interfere with the resistance reading.
5) Read the resistance displayed on-screen.
SQUARE WAVE OUTPUT
1) Set the rotary switch to range position.
2) Insert the black test lead banana plug into the negative COM jack.
3) Insert the red test lead banana plug into the VΩmA jack.
4) The meter output square wave: frequency = 50Hz ±10Hz, Vp-p =
5V±2V, output impedance = 560kΩ.
NCV (NON-CONTACT VOLTAGE) DETECTION
Due to external interference sources, this test may detect the wrong
voltage. Please use as an estimate only. Socket design, insulation
thickness and other variable conditions may interfere with detection.
External sources such as ashlights, motors, etc may interfere with
reading and cause the wrong detection.
1) Set the rotary switch to NCV position and wait for EF to display
on screen.
2) Contact the top part of the meter with the circuit being tested.
3) The LED light will ash and an audible signal will sound, with the
signal strength displayed on screen.
LINE (LIVE WIRE RECOGNITION) TEST
When serious circuit leakage is detected (approx. over 15V) and the red
test lead is in contact with the earth line, the meter will buzz and the LED
light will ash.
1) Set the rotary switch to LINE position.
2) Connect the black test lead to the COM jack and red test lead to the
VΩmA jack. Make sure to hold the insulation part of the black test lead
and not plug it into the circuit under measurement.
3) Contact the red test lead to the wire. If it’s live, the meter’s buzzer will
sound and the red LED will ash.
4) If an earth connection is detected, the buzzer will not sound and the
LED light will not ash.
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protech QM1527 Specifications

General IconGeneral
Brandprotech
ModelQM1527
CategoryMultimeter
LanguageEnglish

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