
HZ-5300 300A Portable Micro Ohm Meter Loop Contact Resistance Tester
Huazheng Electric Manufacturing (Baoding) Co., Ltd. is one of the leading manufacturers and suppliers of hz-5300 300a portable micro ohm meter loop contact resistance tester in China. Please feel free to buy high quality equipment for sale here from our factory. Good service and reasonable price are available.
HZ-5300 300A Portable Micro Ohm Meter Loop Contact Resistance Tester
Overview
The HZ-5300 Contact Resistance Tester is a high-precision, digital switch detection instrument carefully developed by the company in accordance with the IEC standard and the relevant regulations of the latest electric power implementation standard DL/T845.4-2004 of the People's Republic of China, using its own technical advantages. The instrument uses high-frequency high-power constant-current switching power supply technology, which can measure micro-ohm contact resistance. It is widely used in the measurement of contact resistance, loop resistance of various switches and electrical appliances, and contact resistance of cables, wires, and welds.
Main Technical index
| Item | Specification |
| Test current | 100 A, 200 A, 300 A |
| Measuring range | 0~50 mΩ (100 A) |
| 0~20 mΩ (200 A) | |
| 0~5 mΩ (300 A) | |
| Resolution | Min 0.1 μΩ |
| Accuracy | ±(0.5% + 2 digits) |
| Power | 1000 W |
| Working mode | Continuous measurement |
| Power supply | AC 220 V ±10%, 50 Hz |
| Operating temperature | 0~40 ℃ |
| Relative humidity | ≤ 90% RH, no condensation |
| Dimensions | 355 × 275 × 147 mm |
| Weight | 9.05 kg |
Safety measures
Operator Qualifications: The operator should have basic knowledge of general electrical equipment or instruments.
Shutdown Procedure: After testing, press the reset button and then turn off the power switch. Note: It is strictly forbidden to disassemble or assemble test cables while power is applied.
Abnormal Conditions: If the instrument behaves abnormally, first press the reset button to reset the instrument.
Service Requirement: Maintenance of the instrument must be performed by qualified professionals. Do not attempt to repair it yourself.
Measurement Restriction: This instrument is designed for measuring loop resistance. Do not use it to measure inductive loops.
After-sales service
The instrument will be repaired and replaced free of charge for product quality problems within one year from the date of purchase, and will provide lifetime warranty and technical services. If you find that the instrument is abnormal or malfunctioning, please contact the company in time to arrange the most convenient solution for you.



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