AOIP OM 10 Portable micro-ohmmeter (50 kΩ)

Resistance measurement

Measuring range/ Resolution/ Accuracy (1 year) (23°C ±5°C)/ Measuring current/ Voltage drop

500 mΩ/ 10 μΩ/ 0.05% + 50 μΩ/ 100 mA/ 50 mV

5 Ω/ 0.1 mΩ/ 0.05% + 0.5 mΩ/ 10 mA/ 50 mV

50 Ω/ 1 mΩ/ 0.05% + 5 mΩ/ 10 mA/ 500 mV

500 Ω/ 10 mΩ/ 0.05% + 50 mΩ/ 1 mA/ 500 mV

5 KΩ/ 100 mΩ/ 0.05% + 0.5 Ω/ 0.1 mA/ 500 mV

50 KΩ/ 1 Ω/ 0.05% + 5 Ω/ 0.01 mA/ 500 mV

Accuracy given in % of reading + fixed value at 23°C ±5°C

Temperature coefficient beyond operating range: < 10% accuracy/°C (from 0 to18°C and from 28 to 50°C)

Open circuit voltage: < 8 V

Resistance of the connection cables: < 20 Ω

Voltage measurement

Range/ Resolution/ Accuracy (1 year) (23°C ±5°C)

400 V/ 1 V/ 1% + 1 V

Accuracy given in % of reading + fixed value at 23°C ±5°C

Temperature measurement

Range/ Resolution/ Accuracy (1 year)(23°C ±5°C)

-10 to 60°C/ 0.1°C/ 1.5°C

Accuracy given in % of reading + fixed value at 23°C ±5°C

Further features

Resistance types

Inductive resistances: Coils, transformers, motor windings...

Non-inductive resistances: Earth bonding, coating, contact resistances...

Measuring current: DC current from 0.01 mA to 100 mA

Continuous ou pulsed

Measuring time: 0.5 s in continuous current mode or 1 s in pulsed mode

EMFs: Automatic compensation of EMF parasites before each measurement for a greater accuracy

Temperature compensation:

Choice of metal temperature coefficient

Choice of ambient temperature (programmed or measured with internal sensor)

Temperature compensation at 20°C: Resolution: 0.1°C, accuracy: ±0.5°C

(R20 = Resistance compensated at ambient temperature equal to 20°C)

General specifications

Size: 120 x 65 x 245 mm

Weight: 1.1 Kg

Display: LCD, 50,000 counts,13 mm high

Power supply: 10 to 20 V 0.5 A

Internal batteries: Type: Ni/Cd 1.7 Ah

Charging time: 14 h

Battery life: 10 h over 500 mΩ range

Environmental specifications

Reference range: 23°C ±5°C (45 to 75% w/o condensing)

Operating reference range: 0 to 50°C (RH: 20 to 75% w/o condensing)

Limit operating range: -10°C to +55°C (RH: 10 to 80% w/o condensing)

Storage temperature limits: -30°C to +60°C (-15°C to +50°C with battery charged)

Datasheet