Resistance Measurement - Pro'sKit MT-1280 User Manual

NOTE:
1. If the measured current is unsure beforehand, the range knob should be set to a
higher range; then, switch to a proper range according to the display value.
2. If LCD displays "0L.", it means over range, the range knob should be set to a
higher range.
3. Max. input current is 600mA or 20A (subject to where red lead insert), excessive
current will blow the fuse. Be careful when measuring. Continuously measuring
large current may heat the circuit, affect the accuracy, or even damage the meter.
3.6 ACA MEASUREMENT
1. Insert the black test lead to "COM" jack and the red one to "mA" jack(max. 600mA),
or insert the red one to "20A" jack (max. 20A).
2. Set the range knob to a proper ACA range; connect the test leads across to the
circuit under tested.
NOTE:
1. If the measured current range is unsure beforehand, the range knob should be set
to the highest range, then set to a proper range according to the displayed value.
2. If LCD displays "0L.", it means over range, the range knob should be set to a
higher range.
3. Max. input current is 600mA or 20A (subject to where the red lead insert to),
excessive current will blow the fuse. Be careful when measuring. Continuously
measuring large current may heat the circuit, affect the accuracy, or even damage
the meter.
4. The value of the ACA measurement with this meter is True RMS (root mean
square). These measurements are accurate for sine wave and other waves
(without DC offset), square wave, triangular wave and step wave.

3.7 RESISTANCE MEASUREMENT

1. Insert the black test lead to "COM" jack and the red one to "V/Ω" jack.
2. Set the range knob to a proper resistance range, connect the test leads across to
the resistance under measured.
NOTE:
1. If the resistance value being measured exceeds the max value of the range
selected, LCD displays "0L."; thus, the range knob should be set to a higher range.
When the resistance is over 1MΩ, the meter may take a few seconds to stabilize.
This is normal for high resistance readings.
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