200ARS232200A DC Micro Resistance Tester
is a dedicated instrument for measuring contact resistance and loop resistance of switch control equipment. The test current adopts the 100A DC recommended by the national standard GB763. It can directly measure loop resistance or contact resistance under currents of 100A, 200A, 300A, 400A, 500A, or 600A, and display the results directly. It can also save up to 100 groups of data on the instrument. The saved data can be communicated with the upper computer via the RS232 interface, and uploaded to a computer for storage or printing. This instrument features accurate measurement and stable performance, suitable for on-site high-voltage switch maintenance in power and power supply departments, as well as loop resistance testing requirements in high-voltage switch factories.
200ARS232200ADC Micro Resistance Tester Product Performance:
1. High Current: Adopting the latest switching power supply technology, it can continuously output high current for a long time, overcoming the drawbacks of instantaneous current in pulse power supplies, effectively breaking through the oxide film on switch contacts, and obtaining good test results.
2. High Stability: Under severe interference conditions, the last digit of the LCD display can remain stable within ±1 digit, with stable readings and good repeatability.
3. High Precision: Using dual-channel high-speed 16-bit Σ-Δ AD sampling and the latest digital signal processing technology, the maximum resolution reaches 0.01μΩ. It is currently the only contact resistance tester in China that can achieve 0.01μΩ resolution with high stability, surpassing imported high-current micro-ohmmeters in performance.
4. Intelligence: Using an imported high-performance CPU, the system automatically switches ranges based on signal strength during measurement, ensuring the accuracy of the product. The over-temperature protection circuit automatically stops outputting current when the instrument exceeds the set temperature, ensuring safe use.
5. High Quality: All key components are imported, and a cleverly designed temperature compensation circuit effectively eliminates the influence of ambient temperature on measurement results. The use of connectors enhances vibration resistance.
6. Powerful Functions: The current can be freely selected among 50A, 100A, 150A, and 200A, and the test time can be set arbitrarily from 5s to 599s, overcoming the shortcomings of other similar instruments that cannot set measurement time or have too short continuous working time, far exceeding the performance of other similar instruments.
7. Friendly Human-Machine Interface: Data input via a rotary mouse is convenient and fast. The instrument's date and time can be set independently, measurement data can be saved in real-time, and measurement results can be printed immediately.
8. Multiple Communication Methods: It can communicate with a computer via RS232 serial port (9-pin) or USB data cable, uploading measurement data to the computer for further analysis and processing by test personnel.
9. Easy to Use: Small size, light weight, and portable.
It is a dedicated instrument for measuring contact resistance and loop resistance of switch control equipment. The test current adopts the 100A DC recommended by the national standard GB763. It can directly measure loop resistance or contact resistance under currents of 100A, 200A, 300A, 400A, 500A, or 600A, and display the results directly. It can also save up to 100 groups of data on the instrument. The saved data can be communicated with the upper computer via the RS232 interface, and uploaded to a computer for storage or printing. This instrument features accurate measurement and stable performance, suitable for on-site high-voltage switch maintenance in power and power supply departments, as well as loop resistance testing requirements in high-voltage switch factories.
High-Precision Loop Resistance Tester Product Performance
1. High Current: Adopting the latest switching power supply technology, it can continuously output high current for a long time, overcoming the drawbacks of instantaneous current in pulse power supplies, effectively breaking through the oxide film on switch contacts, and obtaining good test results.
2. High Stability: Under severe interference conditions, the last digit of the LCD display can remain stable within ±1 digit, with stable readings and good repeatability.
3. High Precision: Using dual-channel high-speed 16-bit Σ-Δ AD sampling and the latest digital signal processing technology, the maximum resolution reaches 0.01μΩ. It is currently the only contact resistance tester in China that can achieve 0.01μΩ resolution with high stability, surpassing imported high-current micro-ohmmeters in performance.
4. Intelligence: Using an imported high-performance CPU, the system automatically switches ranges based on signal strength during measurement, ensuring the accuracy of the product. The over-temperature protection circuit automatically stops outputting current when the instrument exceeds the set temperature, ensuring safe use.
5. High Quality: All key components are imported, and a cleverly designed temperature compensation circuit effectively eliminates the influence of ambient temperature on measurement results. The use of connectors enhances vibration resistance.
6. Powerful Functions: The current can be freely selected among 50A, 100A, 150A, and 200A, and the test time can be set arbitrarily from 5s to 599s, overcoming the shortcomings of other similar instruments that cannot set measurement time or have too short continuous working time, far exceeding the performance of other similar instruments.
7. Friendly Human-Machine Interface: Data input via a rotary mouse is convenient and fast. The instrument's date and time can be set independently, measurement data can be saved in real-time, and measurement results can be printed immediately.
8. Multiple Communication Methods: It can communicate with a computer via RS232 serial port (9-pin) or USB data cable, uploading measurement data to the computer for further analysis and processing by test personnel.
9. Easy to Use: Small size, light weight, and portable.
