I. General Information

GDHL-200 Contact Resistance Tester is designed to measure contact resistance of high, middle and low voltage circuit breakers, high,middle and low voltage disconnecting switches, high-current bus bar joints, cable&welding joints and etc. It is suitable for high current, micro ohm measurement.

II. Features

• Output high-current continuously.
• Four fixed current output, 25A,50A,100A,200A.The value can be customized before placing order.
• Two test modes: Routine test and Switch Resistance Test.
• Test time can be user-defined.
• High speed thermal printer.
• User-friendly. Resistance, current, voltage, time, status and notes can be displayed. Safety and high intelligence.
• Data storage and history data browsing functions, 256 sets of data can be saved.
• The number of test sample and operator can be set, easy to classify the test results.
• History data and switch resistance value can be inquired.
• Large measuring range, up to 80mΩ.
• Ambient and internal temperature can be displayed to protect the instrument.
• Standard resistance value is set, to calculate the error and compare the test resistance value with standard value.
• RS232 interface.(Optional)
• Portable design, easy to carry.

III. Specification

• Input voltage: AC220V±10%, 50HZ ± 2%
• Working temperature: -10～+50℃
• Testing temperature: +15～+25℃
• Storage temperature: -20℃～70℃
• Relative Humidity: ≤85%RH
• Cooling by air
• Ingress Protection Rating: IP67
• Insulation performance: >20MΩ to ground
• Overall dimension: 365*165*310mm
• Weight: 8kg (exclude cables bag)
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