Metrel MI 3242 Low Resistance Ohmmeter

Resistance measurement:

Test current: 2A

Resistance range/ Resolution/ Accuracy

0.000 … 9.999 mΩ/ 1 µΩ/ ±(0.25 % of reading + 2 digits)

10.00 … 99.99 mΩ/ 10 µΩ/ ±(0.25 % of reading + 2 digits)

100.0 … 999.9 mΩ/ 100 µΩ/ ±(0.25 % of reading + 2 digits)

Test current: 100 mA

Resistance range/ Resolution/ Accuracy

0.00 … 99.99 mΩ/ 10 µΩ/ ±(0.25 % of reading + 2 digits)

100.0 … 999.9 mΩ/ 100 µΩ/ ±(0.25 % of reading + 2 digits)

1.000 … 9.999 Ω/ 1 mΩ/ ±(0.25 % of reading + 2 digits)

10.00 … 19.99 Ω/ 10 mΩ/ ±(0.25 % of reading + 2 digits)

Test current: 10 mA

Resistance range/ Resolution/ Accuracy

0.0 … 999.9 mΩ/ 100 µΩ/ ±(0.25 % of reading + 2 digits)

1.000 … 9.999 Ω/ 1 mΩ/ ±(0.25 % of reading + 2 digits)

10.00 … 99.99 Ω/ 10 mΩ/ ±(0.25 % of reading + 2 digits)

100.0 … 199.9 Ω/ 100 mΩ/ ±(0.25 % of reading + 2 digits)

Test current accuracy: ±10% (smoothed DC)

Test duration: 1 s (single mode)

Test method: 4-wire measurement

Measurement parameters

Test current: 2 A/ 100 mA/ 10 mA

Max. power output: 4 W/ 0.2 W/ 20 mW

Output voltage: 9 VDC max.

Limits: 1 μΩ … 199.9 Ω

Voltage and frequency

Voltage:

Measuring range (V)/ Resolution (V)/ Accuracy

0.0~49.9/ 0.1/ ±(2 % of reading + 2 digits)

50~550/ 1/ ±(2 % of reading + 2 digits)

Frequency:

Measuring range (Hz)/ Resolution (Hz)/ Accuracy

10.0~99.9/ 0.1/ ±(0.2 % of reading + 1 digit)

100~500/ 1/ ±(0.2 % of reading + 1 digit)

Power supply voltage: 9 VDC (6x1.5 V battery or accu, size AA)

Idle state: > 25 h

Measurements: > 800 measurements of 500 m load @ 2 A test current & 15 s measurement duration.

Charger socket input voltage: 12 V±10 %

Charger socket input current: 400 mA max.

Battery charging current: 250 mA (internally regulated)

Overvoltage category: 600 V CAT III / 300 V CAT IV

Protection classification: double insulation

Pollution degree: 2

Protection degree: IP 40

Display: 128x64 dots matrix display with backlight

Dimensions (wxhxd): 14 cmx8 cmx23 cm

Weight: 0.8 kg, without battery cells and accessories

Reference conditions

Reference temperature range: 25°C ± 5°C

Reference humidity range: 40 %RH~70 %RH

Operation conditions

Working temperature range: 0°C~40°C

Maximum relative humidity: 95 %RH (0°C~40°C), non-condensing

Storage conditions

Temperature range: -20°C~+70°C

Maximum relative humidity: 90 %RH (-10°C~+40°C), 80 %RH (40°C~60°C)

Nominal altitude: up to 2000m

RS232 interface: 115200 bps, 1 start bit, 8 data bits, 1 stop bit

RS232 connector: PS/2 connector, female

USB interface: 256000 bps

USB connector: type B

Memory: 1500 storage locations (512 kB)

Real time clock error: ±50 ppm

Maximum lead resistance: 100 mΩ total (C1 and C2)

Manual