The MICRO-OHMMETER MR5-200C is used to determine electric resistances on very low – resistance objects (e. g. bus bars, any connectors) while using a very high, continous flowing measurement current. The MR5-200C is able to generate a stable maximum current up to 200 A.
微欧姆计MR5-200C用于测量极低电阻物体(例如母线、任何连接器)上的电阻，同时使用非常高的连续流动测量电流。MR5-200C能够产生稳定的最大电流，最高可达200 A。
| TEST CURRENT | max. 200A (True DC). Increment 1 A. Adjustable and presetable from 0 to 100% |
| 0-199.9 µΩ (test current: up to 200 A).
0-1.999 mΩ (test current: up to 200 A). 0-19.99 mΩ (test current: up to 100 A). 0-199.9 mΩ (test current: up to 20 A). 0-1999 mΩ (test current: up to 2 A). |
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| READING RESOLUTION | 0.1 μΩ for R < 200 μΩ.
1 μΩ for R < 2000 μΩ. 10 μΩ for R < 20 mΩ. |
| OUTPUT VOLTAGE | 4..5 Vdc @ all currents. |
| DISPLAY | 4 digits result, current and time LCD 9mm character height with backlight |
| TOTAL RESISTANCE | max. 20 mΩ @ 200A.
max. 40 mΩ @ 100A. |
| MEASUREMENT PRINCIPLE | Four-terminal due to Kelvin |
| Protects the instrument from overheating. | |
| CONTINUOUS OPERATION TIME | At 200 A this device should not be used continously for more than 30 minutes (overheat protected). At 100 A the measuring time is unlimited. |
| BASIS ACCURACY | ± 0.3 % of reading ± 0.1 % of Range. |
| CURRENT FLOW DURATION | The duration (time) for steady current flow can be easily set to 1,2,5,10,20s. ….up to 600s or unlimited (o.h. protected). |
| ADVANCED FEATURES | Digital direct reading of resistance, current, measuring time and updated every second |
| BUILT-IN MEMORY | Storage of 1000 test readings. |
| INTERFACE | RS232 @ 2400, 4800, 9600 baud. , USB-B |
| ENVIRONMENTAL PROTECTIONS |
IP54 (with closed lid). |
| SAFETY CLASS | Meets the requirements of IEC 61010-1:1990, IEC 61010-1:1992 amendment 2. |
| POWER SUPPLY | 90~264 VAC – 47~63Hz / 127~370VDC |
| OPERATING TEMPERATURE | -5°C to 50°C. |
| STORAGE TEMPERATURE | -40°C to 85°C. |
| HUMIDITY RANGE | 10~95 % of RH (non condensing). |
| EQUIPMENT WEIGHT | Approx. 9.5 kg. (without cables) |
| DIMENSIONS | 410W x 330D x 180H mm. |
| PRINTER | Thermal printer |