CRM Series (CRM 100B/100B+, CRM 200B/200B+ & CRM 100C)

CRM Series (CRM 100B/100B+, CRM 200B/200B+ & CRM 100C) - Image 2

CRM Series (CRM 100B/100B+, CRM 200B/200B+ & CRM 100C) - Image 3

CRM Series (CRM 100B/100B+, CRM 200B/200B+ & CRM 100C)

Contact Resistance Meter

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SCOPE offers its hugely popular CRM series Contact Resistance Meters,CRM 100B/100B+, CRM 200B/200B+ and CRM 100C in all new super-light avatars. The Plus (+) series is based on cutting-edge ultra capacitor technology. CRM directly measures micro-ohm values at 100A / 200A DC under live EHV / UHV switchyard conditions quickly & accurately.

Key Features & Capabilities

Common features of CRM 100B / 100B+ / 200B / 200B+ / 100C

Lightweight meters that directly measures & displays resistance in μΩ
Works reliably in live EHV / UHV switchyards up to 765kV
Typically used for measurement of contact resistance of Circuit Breaker Contacts, Isolators, Bus Bar Joints, Earth Switch Joints, Cable Joints
100A / 200A DC injection
Uses Kelvin’s 4 wire measurement principle
Direct readout of test current and micro-ohms on display
Easy to connect and use
Battery operated (Except CRM 100C)
Simple operation – Extremely easy to setup and use
Type Tested as per IEC 60068-2, IEC 61326-1, IEC 61010-1, CE marked
The instrument is supplied with CData CRM+ software CD and calibrated test leads suitable for testing of EHV / UHV class circuit breakers

Features available only in CRM 100B+ and CRM 200B+

In-built real time clock, memory and printer with time-stamp on each record
Auto ranging
Analysis including ‘Trend Analysis’ with supplied “CData CRM+” Software
Software generated report can be exported to PDF or MS Excel
Housed in ultra rugged IP67 class molded case

Features available only in CRM100C

Powerful continuous 100A DC source
Selectable lower current ranges to test objects having higher resistance / lower current rating
Internal memory (Optional)Computer connectivity and CData CRM software (Optional)

TECHNICAL DATA

Full Product Specifications

Parameters	CRM100B	CRM200B	CRM100B+	CRM200B+
Test Current (DC)	100A	200A	100A	200A
Resistance Range	0 -199.9μΩ & 1999μΩ	0 – 199.9μΩ, 1999μΩ & 19.99mΩ	0-199.9μΩ, 1999μΩ, 19.99mΩ; Auto ranging	0-199.99μΩ, 1999.9μΩ, 19.999mΩ; Auto ranging
Resolution	0.1μΩ & 1μΩ on Resp. Ranges	0.1μΩ, 1μΩ & 10μΩ on Resp. Ranges	0.1μΩ, 1μΩ & 10μΩ on Resp. Ranges	0.01μΩ, 0.1μΩ & 1μΩ on Resp. Ranges
Accuracy	Value ± 2% ± 1 digit	Value ± 1% ± 1 digit	Value ± 2% ± 1 digit	Value ± 1% ± 1 digit
Display	Two, 3½ digit, ½ inch LCD		4 Line X 20 character backlit LCD, 3½ digit	4 Line X 20 character backlit LCD, 4½ digit
Operation	Stand-alone		Stand-alone & Computer Control
Inbuilt Battery	6V, 4Ah, 2nos.		11.1V, 6Ah
Memory	Not available		100 DUT IDs, 1000 records each
Printer	Not available		In-built, Thermal Printer
Battery Charger	110 V/230V AC ± 15%, 50/60 Hz ± 10%		90 to 275V AC, 50/60Hz ± 10%
Environment	0°C to 50°C, Upto 95% RH (Non condensing)
Instrument Weight	9 kg	10 kg	4 kg	5 kg

Continuous Current Contact Resistance Meter – CRM100C

Parameters	CRM100C
Test Current (DC)	100A, 50A, 20A, 10A – Selectable
Resistance Range	199.9μΩ, 1999μΩ, 19.99mΩ, 199.9mΩ, 1999mΩ – Selectable
Resolution	0.1μΩ, 1μΩ, 10μΩ, 0.1mΩ & 1mΩ on Resp. Ranges
Accuracy	Value ± 0.5% ± 5 digits
Display	4 line 20 character backlit LCD display
Instrument Weight	11kg
Power	110 V/230V AC ± 15%, 50/60 Hz ± 10%
Environment	0 to 50°C, Upto 95%RH (Non condensing)

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