Contact Resistance Tester

NegotiableUpdate on September 11

Model

Nature of the Manufacturer: Manufacturer

Product Category: Loop Resistance Tester

Place of Origin: City, Province

Online Consult Contact Information

Overview

Output current:100A/DC 200A/DCMeasuring range:0～19.99mΩ 0～10.00mΩResolution ratio:1μΩTesting accuracy:0.5 class

Product Details

Introduction

According to the requirements of the new Code for Electrical Equipment Handover and Preventive Test, the test current of electrical circuit resistance of various switch-gear shall not be less than 100 A. According to the requirements of the new regulations, our company has designed and developed a series of products of a new generation of circuit resistance tester. This kind of product is suitable for testing the main contact resistance value of high and low voltage switch, the DC resistance value of high and low voltage cable line and so on. The HM6090-200A circuit resistance tester adopts 100 A、200A constant current output, the maximum output voltage is up to 10 V(3 times of the conventional instrument), and the test line with thin section can be used, which greatly reduces the labor intensity of the field testers. The test process is automatically implemented by single chip microcomputer control, with high precision, good retesting, single key operation, simple and easy to carry out. The test data is displayed with lattice liquid crystal with backlight, which is suitable for different working environment.

Main parameter

Model Type	HM6090-200A
Output current	100A/DC	200A/DC
Measuring range	0～19.99mΩ	0～10.00mΩ
Net weight	6㎏
resolution ratio	1μΩ
Testing accuracy	0.5 class
ambient temperature	﹣10℃～50℃
relative humidity
working power supply	AC220V±10﹪　50Hz±1Hz

Operation cautions

1.working power: AC220V±10% 50HZ

2.it should be reliably grounded.

3.Tested circuit breaker outlet or inlet can not be grounded on both sides

4.Removal of test lines is not allowed during testing period.

5.The safety regulations for electrical tests shall be strictly enforced throughout the test

Troubleshooting

Common faults	Failure cause
No display	1）AC220V Power outlet fuse is damaged 2）AC220V power cord does not connect well 3）Instrument internal plug may be loose.
Displaying “Tested circuit is in open circuit"	1)Tested circuit is in open circuit，pls kindly check whether the wiring is good； 2) Poor local contact of the tested loop, pls reconnect the tested product and rub the contact point forcefully
Ammeter indication anomaly	1）The power line is too thin and too long 2）The internal power is in loop faults.
Abnormal LCD display	1）The power line is too thin and too long 2）The supply voltage is under-voltage
Resistance display abnormal	There is poor contact in the tested loop
Over range	1）The resistance of the tested product exceeds the measurement range 2）Poor local contact of test circuit