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Technical Specifications of On-resistance Tester
Test Current: 0.2A, 1A, 5A, 10A four ranges
Test Range: 0.2 A 10 Ω ～ 100Ω
1A 100mΩ ～ 20Ω
5A 10mΩ ～ 4Ω
10A 1mΩ ～ 2Ω
Accuracy: ±(Reading×0.2%+2 digits)
Maximum Resolution: 0.1μΩ
Operating Temperature: -5～40℃; Ambient Humidity: ≤90%RH, no condensation
Power Supply: AC220V±10%, 50HZ±1HZ
Dimensions: 390×280×200mm
Weight: 7Kg (excluding test leads)
Performance Features of On-resistance Tester
The instrument has large output current, wide measurement range, and is easy to operate;
The instrument has complete back-EMF protection function, audible discharge alarm, clear discharge indication, reducing misoperation;
The instrument is equipped with a printer, which can print test data at any time;
The instrument has a real-time clock, and can save and print test records together, convenient for users to save and review;
The instrument can permanently store 200 test data internally (expandable), and can also use USB flash drive to store data for easy import to computer for processing.
The instrument has the characteristics of wide applicable temperature, high precision, shock resistance, anti-interference, small size, light weight, and easy portability.
Safety Measures for On-resistance Tester
Be sure to read this manual carefully before using this instrument.
The operator of the instrument should have general knowledge of electrical equipment or instruments.
This instrument can be used indoors and outdoors, but should avoid places with rain, corrosive gases, excessive dust, high temperature, direct sunlight, etc.
The instrument should avoid severe vibration.
Maintenance, care, and adjustment of the instrument should be performed by professionals.
After testing, be sure to wait until the discharge alarm stops before turning off the power and removing the test leads.
During testing, it is forbidden to move the test clips and power supply lines.
On-resistance Tester
The reliable and effective connection between the grounding down conductor of power equipment and the grounding grid is the fundamental guarantee for the safe operation of equipment. The grounding down conductor is the connection part between the power equipment and the grounding grid. During the long-term operation of power equipment, the connection point may be affected by moisture and other factors, resulting in node corrosion, or even fracture, which increases the resistance at the connection point between the grounding down conductor and the main grounding grid, thus failing to meet the requirements of power regulations, causing potential safety hazards in equipment operation, and in severe cases, causing equipment to operate without grounding. Our company has developed a series of grounding down conductor on-resistance testers using our technical advantages. This instrument adopts new power supply technology, with the characteristics of small size, light weight, large output current, and automatic adjustment according to load size. The whole machine is controlled by a microcontroller, automatically completing self-check, data processing, display, printing, and other functions, with automatic discharge and discharge indication functions. The instrument has high test accuracy, is easy to operate, and can achieve rapid measurement of grounding resistance.
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