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CR.100A

The CR.100A is a portable, high-precision contact resistance tester designed in compliance with IEC 62271 standards. It is engineered to test the contact resistance of circuit breakers and high-current cable joints with a DC output of 100 A.

Equipped with a built-in micro-printer and PC connectivity, the CR.100A allows for onsite reporting and easy transfer of test data to a computer for documentation in MS Word format. Lightweight and compact, with an LCD true colour touchscreen interface, it provides accurate, reliable, and efficient results in both laboratory and field applications.

Function

• Contact resistance testing for circuit breakers and high-current cables
• Fixed DC test current: 100 A (continuous measurement)
• Measurement range: 0–1999.9 μΩ with 0.1 μΩ resolution
• Built-in printer for immediate reporting
• Storage for up to 100 groups of test data
• RS232 and USB interfaces for data transfer and PC integration
• Compact, lightweight design for portability
• Compliant with IEC 62271 standards

Technical Specifications

measurement range

  • 0–1999.9 μΩ

resolution

  • 0.1 μΩ

test current

  • DC 100 A continuous

accuracy

  • < 0.5 % RDG + 0.05 % FS

display

  • LCD true colour touchscreen

data storage

  • Up to 100 groups of records

interfaces

  • RS232 computer interface

  • USB and U disk storage support

printer

  • Built-in micro-printer

power supply

  • AC 220 V, 50 Hz

dimensions

  • 300 × 230 × 220 mm

weight

  • < 7 kg

operating conditions

  • Temperature: -10 °C to +40 °C

  • Relative humidity: < 80 %

Key Features

  • High-current contact resistance measurement with 100 A DC output

  • Resolution down to 0.1 μΩ

  • Four-terminal measurement method eliminates lead resistance effects

  • True colour LCD touchscreen for ease of use

  • Built-in printer for onsite reporting

  • Perpetual calendar clock and power-down data storage

  • RS232 and USB interfaces for PC communication and U disk storage

  • Intelligent power management for efficient operation

  • Lightweight and portable (<7 kg)

Standard Accessories

  • CR.100A tester unit

  • 8 m test cable set

  • Power supply cable

  • Pass certificate

  • Inspection report

  • Instruction manual

  • Software disk

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