Micro Ohmmeter

HTHL-100B Micro Ohmmeter

Special equipment for field high voltage switch maintenance and high voltage switch circuit resistance test in power supply department

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Product Introduction

At present, the contact resistance measurements of the conventional type QJ44 arms widely used in electric power system dc bridge, and the Test of this kind of bridge current only mA level, it is difficult to find circuit conductor cross-sectional area to reduce defects, when measuring contact resistance high-voltage switch electric circuit, due to the contact between the oil film and the influence of the oxide layer, several times the measured value is big, can't reflect real contact resistance.Therefore, the standard sd301-88 ac 500kV power equipment handover and preventive test regulations and the new version of preventive test regulations for power equipment stipulate that the measuring current of circuit breaker and isolating switch contact resistance is not less than dc 100A to ensure the accuracy of test results.

The switchMicro Ohmmeter produced by Huatian Electric Power is designed by combining high-frequency switch The Power supply technology and digital circuit technology in accordance with The implementation standard DL/ t845.4-2004 of new Electric Power of The People's Republic of China.The switchMicro Ohmmeter is suitable for the measurement of resistance in the circuit of switch control equipment.The instrument is accurate in measurement and stable in performance. It meets the requirements of high voltage switch maintenance and resistance test of high voltage switch factory circuit.

Product names:Contact resistance tester、 switchMicro Ohmmeter、Contact Micro Ohmmeter, contact (circuit) resistance tester

Product Parameters

Technical parameters

Measuring range 1~1999μΩ
Resolution 1μΩ
Test current DC 50A、100A Two gears fixed output
Accuracy 0.5%±1d
Way to work continuous
Display Three and a half LCD
Power supply AC220V±10% 50Hz
Working environment Temperature: -10℃ ~ 40℃, humidity: ≤80%RH
Diemension 300×290×220 mm3
Weight 6kg(excluding attachments)

1.The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice.In case of misappropriation or copying, legal liability will be investigated.

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Product Characteristics

 switchMicro Ohmmeter  switchMicro Ohmmeter  switchMicro Ohmmeter  switchMicro Ohmmeter  switchMicro Ohmmeter  switchMicro Ohmmeter  switchMicro Ohmmeter

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Product details

Production process diagram

Product Certificate

Enterprise products in strict accordance with international and national standards and rules of industry production, through the national, provincial and municipal electric power research institute and electric power authorities detection, measuring center, fully passed the ISO9001 international quality management system certification, the licence for manufacturing measuring instruments of the People's Republic of China, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, GB/T45001-2020 occupational health and safety management system requirements.

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