Features of Switch Contact Resistance Tester:


l Adopts the latest power supply technology, capable of continuous high current output for extended periods, with four current ranges flexibly selectable: 50A, 100A, 150A, and 200A.

l This instrument features compact size, light weight, strong anti-interference capability, high precision, easy operation, and comprehensive protection functions.

l Utilizes precision instrumentation operational amplifiers and high-accuracy quadruple integration A/D converters, combined with a high-performance 16-bit microcontroller. During measurement, the system automatically switches amplification factors based on signal strength, ensuring test accuracy.

l Full keyboard operation for human-machine interaction, with intelligent automation throughout the entire working process.

l 320×240 LCD display and high-speed thermal printer.

l This product also features a real-time calendar clock, providing time reference for printing and data storage.

l Data storage and historical data browsing functions, capable of storing 200 sets of data, with power-off protection.

l Ultra-wide measurement range, with a maximum range of 0-4mΩ.

Technical Parameters of Switch Contact Resistance Tester


1. Output Current: Four selectable ranges: 50A, 100A, 150A, 200A

2. Working Power Supply: AC 220V±10% 50Hz±2%

3. Ambient Temperature: -25°C ~50°C

4. Relative Humidity: ≤90%RH

5. Accuracy: 0.5%

6. Resolution: 0.01μΩ

7. Measurement Range: 0~4mΩ (50A range)

0~2mΩ (100A range)

0~1.33mΩ (150A range)

0~1mΩ (200A range)

Note: A 500A loop resistance tester can be customized upon request.