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CRM 100C

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 % ± 1 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

 

Read 190 times Last modified on Friday, 24 July 2020 13:08

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