DC 400A Automatic Micro-Ohmmeter

• Customization: Available
• Type: Universal Testing Machine
• Accuracy Grade: 1
• Model NO.: GDHL-400
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Display: Digital
• Control: Manual Control
• Weight: 0-100Kg
• Power Source: AC220V
• Size: 440*220*380mm
• Cooling method: Air-cooled
• Protection class: IP54
• Work method: Continuous working/ user-defined working
• Warranty: 1 year
• Current range: 10A, 100A, 200A, 400A
• Resistance range: 1.000mΩ~200mΩ
• Transport Package: Standard Export Wooden Box
• Specification: ISO, SGS
• Trademark: HV Hipot
• Origin: Wuhan, China
• HS Code: 9030899090
• Production Capacity: 2000set/Year

Product Description

400A Customized Automatic DC Contact Resistance Tester GDHL-400
 

The GDHL-400 contact resistance tester is made of advanced high-power switching power supply technology and advanced electronic circuits. It is a special test equipment for high-voltage, medium-voltage and low-voltage circuit breaker, switch loop resistor, high-current busbar (such as copper row, aluminum row, etc.) connection point resistance, contact resistance at the sleeve connection, cable connection point resistance, and resistance at the solder joint. . The measuring current of the resistance value is not less than 100A recommended by the national standard GB736. The instrument has the characteristics of small volume, light weight, strong anti-interference ability, high precision, convenient operation and perfect protection function.

I. Application 

• High, middle and low voltage circuit breakers
• High, middle and low voltage disconnecting switches
• High-current bus bar joints
• Cable & welding joints

 It is suitable for high current, micro-ohm measurement.
 

II. Features 

• Two test modes: routine test and switch resistance test;
• Continuous output of high current;
• Test time is set at different steps or user-defined;
• With high speed thermal printer, test results are printed real-time;
• User-friendly man-machine interface, resistance, current, voltage, time and status are displayed on the same screen, more intuitive;
• Data storage function. Up to 256 groups of data can be saved and viewed;
• Wiring diagram and chart of referential resistance value for common switches are available;
• High automation and high security, fully touch screen operation;
• Ambient temperature and inner temperature tests are provided to protect the machine from damage;
• Standard resistor is set to compare the measured value and standard value;
• Resistivity at 20ºC is calculated when conductor's length and cross section is set, convenient for user to evaluate the material of conductor.

III. Specifications

General parameters
Power supply		AC220V±10%; 50±2Hz
Work environment		Temperature -10 ~ +50ºC, humidity≤85%RH (No condensing)
Test conditions		Temperature 15 ~ +35ºC, humidity≤85%RH (No condensing)
Storage conditions		Temperature -20 ~ +70ºC, humidity≤85%RH (No condensing)
Size & weight		440*220*380mm, <30kg (without accessory bag)
Cooling method		Air-cooled
Insulation resistance		To ground >20MΩ
Protection class		IP54
Work method		Continuous working/ user-defined working
Key parameters
Current (A)	Measurement range	Accuracy		Min. resolution
10	1.000mΩ~200mΩ	1.000mΩ~199.99mΩ	1.0%RD+0.2%FS	1uΩ
100	0.01uΩ~40mΩ	0.01uΩ~999.99uΩ	1.0%RD+0.2%FS	0.01uΩ
		1.000mΩ~5.999mΩ	0.5%RD+0.1%FS	1uΩ
		6.000mΩ~39.99mΩ	1.0%RD+0.2%FS	1uΩ
200	0.01uΩ~20mΩ	0.01uΩ~999.99uΩ	1.0%RD+0.2%FS	0.01uΩ
		1.000mΩ~2.999mΩ	0.5%RD+0.1%FS	1uΩ
		3.000mΩ~19.99mΩ	1.0%RD+0.2%FS	1uΩ
400	0.01uΩ~10mΩ	0.01uΩ~999.99uΩ	1.0%RD+0.2%FS	0.01uΩ
		1.000mΩ~1.999mΩ	1.0%RD+0.2%FS	1uΩ