Loop tester HZ-5100-I

resistancecablefor electrical appliances

The hand-held Loop Resistance Tester is a high-precision, digital switch detection instrument developed by our company in accordance with the IEC standard and the latest electric power industry standard of the People's Republic of China, DL/T845.4-2004.This instrument utilizes high-frequency, high-power constant current switching power supply technology, enabling it to measure micro-ohm level contact resistance. It is widely used for measuring contact resistance in switches, electrical appliances, circuit resistance, cable wires, and welding line connections. The instrument offers accurate and stable measurement data, making it ideal for use in high-voltage switch maintenance and circuit resistance testing, as required by power and electric supply departments. The output current and measured resistance are displayed simultaneously on a 7-inch high-brightness color LCD touch screen.Additionally, the measurement results can be output to a printer or stored on a USB drive. The power-off storage function ensures that data can be queried and retrieved at any time. Performance characteristics 1.Comprehensive Protection Functions: The instrument is equipped with various protection features, including back EMF impact protection, line interruption detection during testing, power failure protection, and overheating safeguards for the power supply. These functions reliably protect the instrument from the effects of back EMF and trigger an alarm when necessary. 2.Intelligent Power Management: The instrument utilizes intelligent power management technology, operating at the minimum power state, effectively saving energy and reducing heat generation.