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MOEORW-1042 Grouped Grounding Wire DC Resistance Tester Send email to us

Applications

 Product Overview

This instrument was developed in accordance with the "Preventive Testing Procedures for Electrical Safety Tools and Equipment" and is used to assess whether the contact between the grounding wire lug and the bus clamp and the multi-strand copper flexible conductor is good.

This instrument employs the DC voltage-current proportional method and consists of a low-voltage, high-current constant current source and a measurement system. The constant current source utilizes advanced switching power supply technology, featuring strong anti-interference capabilities and high stability. The measurement section uses an intuitive LCD display, ensuring accurate and reliable measurements, and offering flexible and convenient loop selection and switching operations.

Application

1. The test current is large, fully complying with the relevant national standards for testing contact resistance.
2. It has a high output voltage and a wide measurement range, up to 300mΩ .
3. The test current comes from a high-precision 50A switching constant current power supply, requiring no manual adjustment, and the test is fast and accurate.
4. The four-terminal wiring method effectively eliminates the influence of the test lead resistance on the test results.
5. The test is fast, displaying data in about 3 seconds.
6. The instrument is designed for long-term continuous operation and features an overheat protection circuit, ensuring reliable and stable operation.
7. It is easy to operate, lightweight, and suitable for field operations.
8. The instrument features a perpetual calendar and 99 sets of data storage, and data is not lost when the instrument is turned off.

Features

1. The test current is large, fully complying with the relevant national standards for testing contact resistance.
2. It has a high output voltage and a wide measurement range, up to 300mΩ .
3. The test current comes from a high-precision 50A switching constant current power supply, requiring no manual adjustment, and the test is fast and accurate.
4. The four-terminal wiring method effectively eliminates the influence of the test lead resistance on the test results.
5. The test is fast, displaying data in about 3 seconds.
6. The instrument is designed for long-term continuous operation and features an overheat protection circuit, ensuring reliable and stable operation.
7. It is easy to operate, lightweight, and suitable for field operations.
8. The instrument features a perpetual calendar and 99 sets of data storage, and data is not lost when the instrument is turned off.

Parameter

Test current 30A, 40A, 50A
Measuring range 30A:0~300 mΩ40A:0~200 mΩ50A:0~100 mΩ
Minimum resolution 0.01 μΩ
Accuracy 0.5% ± 0.2µΩ
Output voltage ≤DC10V
Working mode Continuous
Power supply AC220V±10% 50Hz±1Hz
Power consumption ≤600W
Operating temperature -20 ℃~ 40 ℃
Relative humidity ≤ 80 % RH, no condensation
Weight 8.7kg
Dimensions 350mm × 230mm × 260mm

 

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