Micro Ohm Meter

Contact resistance micro-ohm meter is available in two models. One with max 100 a dc max other is having 200 amp dc max. It is important to measure the contact resistance of a high voltage contact joint or of a circuit breaker with high current . IEC specifies minimum 100 A . Circuit breaker contact resistance meter employs constant current source and test is based on four terminal measurement method and hence the effect of test cable resistance is eliminated. The instrument is provided with large LCD display to show the test current value, measured resistance value. There is internal printer through which the results can be quickly printed or results can be saved to pc through a USB port. In case the instrument reaches a high temperature level, user gets high temperature alarm.
Brief specifications:
Test current : 50 A or 100 A dc ( model for 100 A)
50A/100A/150A/200A dc ( model for 200A)
Resistance range: 1-39999.9 嵉„¦/ 1-19999.9μ Ω( 50 A/100A)
1-12999.9 μ Ω /1-9999.9 μ Ω( 150A/200A)
Accuracy: 0.5% ± 0.5 μΩ
Maximum output voltage: 5v
Power: AC 220V± 10%
Frequency: 50 hz
Operating temperature: -20 ËšC- 40 ËšC
Relative humidity: â‰Â¤ 80%rh, no condensing
Weight: 8 kg( 100 A version) . 10 kg( 200A version)