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I.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. The instrument has
accurate measurement data and stable performance. It can meet the requirements of
on-site high-voltage switch maintenance and high-voltage switch factory loop resistance
testing in electric power and power supply departments Claim. The output current and
measuring resistance are simultaneously output on the 65K true color LCD, and the
measurement results can be voltage output or stored in a USB flash drive. The power-off
storage can satisfy data query at any time.
II.Main technical indexes
1. The test current is large, which fully meets the requirements of the national standards
for testing contact resistance.
2. High output voltage and wide measuring range.
3. The test current comes from a high-precision high-current constant-current power
supply, without manual adjustment, and the test is rapid and accurate.
4. The four-terminal wiring method is adopted, which effectively eliminates the influence
of the test wire resistance on the test results.
5. The 65K true color LCD with ultra-small pixels of 320X240 dot matrix,
6. The instrument comes with a perpetual calendar clock and power-down storage, which
can automatically store 1000 sets of test data for reference at any time
7. The instrument is equipped with a micro printer, RS232 and USB interfaces, which can
communicate with a computer and store in a U disk
