Micro-Ohmmeter
Micro-Ohmmeter
Description
This portable intelligent micro-ohmmeters are for measuring circuit-breaker contact resistance, bushing contact joints, or any low-resistance conductor path that requires testing. This microprocessor controlled micro-ohm meter can accurately measure low resistances ranging from 1 micro-ohm to 20 milliohms at any test current from 10A to 600A. The digital readout displays directly in micro-ohms or milliohms. No calculation is required to compensate for lead resistances when using these meters. Weight of 100~200A meter is only 7kg and weight of 300~600A meter is only 12kg, ideal for field use.
Main features
-- Light weight, small size, portable for field use
-- Max. output voltage 10V, so test wire can be in small section, less labor intensity
-- Big sunlight LCD display setting test current, test duration, procedure and test results
-- Big memory storing max. 200 test data
-- Built-in thermal printer
-- Computer interface via RS232 or USB port
-- Data management software based on Windows, test reports can be saved as Word or Excel formats.
Main parameters
Item | MO-100A | MO-200A | MO-300A | MO-400A | MO-500A | MO-600A |
Max. test current (A) | 100 | 200 | 300 | 400 | 500 | 600 |
Resistance range (μΩ) | 0-20000.0 | 0-10000.0 | 0-8000.0 | 0-6000.0 | 0-5000.0 | 0-4000.0 |
Current taps** (A) | 100 | 100,200 | 100,200,300 | 100,200, 300,400 | 100,200,300, 400,500 | 100,200,300, 400,500,600 |
Resolution ratio (μΩ) | 0.1μΩ** | |||||
Accuracy | 0.5% readings /- 2 counts** | |||||
Test duration (s) | 5-60,selectable | 5-30, selectable | ||||
Dimension (mm) | 330x218x140 | 480 x 340 x 140 | ||||
Weight (kg) | 7 | 12 | ||||
**Notes:
1. Standard taps are in integer. If needed, can be specially ordered one step 10A within 30-200A and one step 100A within 200-600A.
2. Resolution ration 0.01μΩ can be specially ordered.
3. Accuracy 0.2% /-2 counts can be specially ordered.
