Electrical & Hardware

General Information
GDHL-200 Automatic Contact Resistance Tester is designed to measure circuit contact resistance of high/low voltage switch,power cable and wires, and weld joint. It is suitable for high current, micro resistance measurement. This product is widely used in electrical manufacturing department, power operation department, research institute and universities.
Features
320 * 240 mm LCD, high speed thermal printer.
Small size, light weight, anti-interference performance, high precision, easy operation and perfect protection function;
The latest power supply technology,continuous high current output for a long time, flexible choice of current range with 50A, 100A, 150A, 200A.
Use precise operational amplifer and high precision A / D converter, combined with high performance 16-bit single-chip. Auto-switch amplification factor according to signal,ensure accuracy.
With real-time calendar clock, convenient for data printing and saving.
Data storage and history data browsing fuctions, which can store 200 sets of data.It also have the function of power off protection.
Full keyboard operation,intelligent working process.
Technical Parameters
Power Supply: AC 220V ± 10% 50Hz ± 2%.
Ambient temperature: -25 ° C to 50 ° C.
Relative humidity: ≤ 90% RH.
Output Current: 50A, 100A, 150A, 200A for selection.
Measuring range: 0 - 4mΩ (50A level)
0-2mΩ (100A level)
0-1.33mΩ (150A level)
0-1mΩ (200A level)
Accuracy: 0.5%.
Resolution: 0.01μΩ.
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