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 - MM3 is heavy duty, portable
multimeter for DC voltages, AC
voltages, DC currents, resistances and dB measurements.
Diode checking facility has been provided.
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DC VOLTAGES
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7 ranges
of 0 to 0.1, 0.5, 2.5, 10, 50, 250 and 1000 volts.
Accuracy
± 3% of full scale for all ranges except ± 5% for 1000V range.
Meter
sensitivity 20,000 ohms per volt.
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AC VOLTAGES
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4
ranges of 0 to 10, 50, 250 and 1000 volts.
Accuracy
± 4% of full scale for all ranges except ± 5% for 1000V range.
Meter
sensitivity 9000 ohms per volt.
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DC CURRENTS
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4
ranges of 0 to 50µA, 2.5mA, 25mA and 0.25A.
Accuracy
± 3% of full scale.
Maximum
voltage drop is 0.25 volts.
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RESISTANCES
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4
ranges of 0 to 2000 ohms, 20000 ohms, 2 mega ohms and 20 mega ohms.
Accuracy
± 3% of full scale.
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dB MEASUREMENTS
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-10
dB to +22 dB. (0 dB referenced to 1 milli watt at 600 ohms).
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METER MOVEMENT
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Meter
of 25µA full scale, 90 degree arc with knife edge pointer.
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POWER REQUIREMENTS
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Two
1.5 volts AA pencil cells and one 9 volts battery.
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SIZE AND WEIGHT
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35 mm (H) X 100 mm
(W) X 148 mm (L). 280 gms.
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STANDARD ACCESSORIES
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Two
1.5 volts AA pencil cells, 9 volts battery, test leads, instruction
manual and carrying cover.
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