CRM 100C
CRM 100C directly measures resistance values with DC current injection under live switchyard conditions.The CRM 100C is specially designed to reliably measure contact resistance of Circuit Breakers, Isolators, Bus Bar joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards. It can also be used for testing cables, graphite bars etc.
It has a truly continuous current source without any ON/OFF duty cycle
Features
- Innovative design makes CRM 100C the lightest available continuous current contact resistance meter
- Direct display of micro-ohm value does away with manual calculations
- Fool-proof connections and repeatability are ensured by SCOPE’s specially designed proprietory Ck clamps
- Supplied with rugged calibrated test lead set satisfying Kelvin’s 4 wire measurement principle.
- Selectable current ranges allows user to test various DUTs having wide resistance range.
- Every current range is associated with selectable resistance range to achieve better resolution of results.
- LED indication makes user aware about current injection status.
- User-friendly Menu structure enables user to take test easily.
- PC downloading facility is available with CData – PC Downloading & Data Management Software.(Optional)
Specifications
- Current : 10, 20, 50, 100A DC
- Accuracy : Value ± 0.5 % ± 5 digit
- Display : One backlit 4 line LCD for interactive menu, test results, keyboard functions and messages,test results, 3½ digit for resistance and current values
- Power : 230 V AC ± 15%, 50 Hz ± 10%, 500 VA
- Dimensions : 475 x 405 x 175 mm
- Weight : 11 kg, instrument
- Environment: 0° to 50° C max, 95 % RH (non-condensing), Live EHV switchyard environment
- Ranges : On SCOPE’s Calibrated Test Leads as follows
| Test Current | Resistance Range | Resolution |
| 100A |
199.9µΩ 1999µΩ 19.99mΩ |
0.1µΩ 1µΩ 0.01mΩ |
| 50A | 1999µΩ
19.99mΩ |
1µΩ
0.01mΩ |
| 20A | 1999µΩ
19.99mΩ 199.9mΩ |
1µΩ
0.01mΩ 0.1mΩ |
| 10A | 19.99mΩ
199.9mΩ 1999mΩ |
0.01mΩ
0.1mΩ 1mΩ |
