MN35 Datasheet, PDF (8/10 Pages) Extech Instruments Corporation. – Manual Ranging Mini MultiMeter

Temperature Measurements
WARNING: To avoid electric shock, disconnect test leads from any
source of voltage before making a temperature measurement. Be sure
that the thermocouple has been removed before changing to any other
measurement function.
1. Insert the type K thermocouple probe into the V/Ω/mA and COM jacks.
2. Turn the rotary switch to the ^oF or ^oC position.
3. Read the temperature on the display.
Continuity Measurements
1. Insert the black test lead banana plug into the negative COM jack and
the red test lead banana plug into the positive V/Ω/mA jack. Observe
polarity.
2. Turn the rotary switch to the •))) position.
3. Touch the test probes to the circuit or device under test. If the
resistance is less than approximately 40Ω the buzzer will sound.
Diode Measurements
1. Insert the black test lead banana plug into the negative COM jack and
the red test lead banana plug into the positive V/Ω/mA jack.
2. Turn the rotary switch to the •))) position.
3. Touch the test probes to the diode under test. Forward voltage will
indicate 0.4V to 0.7V. Reverse voltage will indicate “1. ”. Shorted
devices will indicate near 0mV and an open device will indicate “1. ”
in both polarities.
Battery Test
1. Insert the black test lead banana plug into the negative COM jack and
the red test lead banana plug into the positive V jack.
2. Turn the rotary switch to the 1.5V or 9V BAT position.
3. Connect the red test lead to the positive side of the 1.5V or 9V battery
and the black test lead to the negative side of the 1.5V or 9V battery.
4. Read the voltage in the display.
Good
9V battery: >8.2V
Weak
7.2 to 8.2V
Bad
<7.2V
1.5V battery: >1.35V 1.22 to 1.35V <1.22V
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MN35 V2.0 2/05