High Precision Handheld Contact Resistance Tester Low Price Loop Resistance Meter

• After-sales Service: Warranty Certificate
• Warranty: 1 Year
• Display Type: LCD
• Model NO.: JH1007
• Certification: RoHS, CE, ISO9001
• Customized: Customized
• Measurement Range: 0-50m Ohm
• Minimum Resolution: 0.001 U Ohm
• Measurement Accuracy: 0.5%
• Test Power Supply: Approximately 5.0V
• Test Current: DC 50/100A
• Test Current Accuracy: 5%
• Measurement Time: 10-600 Seconds Can Be Set
• Special Testing Line: Resistance<20m Ohm
• Charging Power Supply: Input 180V~240VAC, 50Hz/60Hz
• Data Storage: Store 100 Sets of Measurement Data
• Working Environment: Temperature -10*50c
• Host Weight: Approximately 5.1kg (Excluding Cables)
• Host Volume: 320mm*255mm*175mm
• Transport Package: Wooden Box
• Specification: 380*250*105mm
• Trademark: JHJC
• Origin: Wuhan, China
• HS Code: 9030339000
• Production Capacity: 1000
• Package Size: 60.00cm * 50.00cm * 30.00cm
• Package Gross Weight: 10.000kg

Product Description

Product overview:

At present, the conventional QJ44 double arm DC bridge is commonly used in the power system to measure contact resistance, and the test current of this type of bridge is only mA level, making it difficult to detect the defect of reduced cross-sectional area of the circuit conductor. When measuring the contact resistance of the conductive circuit of high-voltage switches, the measured value is several times larger due to the influence of the oil film and oxide layer between the contacts, which cannot truly reflect the contact resistance value. Therefore, the latest Ministry of Electric Power standard DL/T845.4-2004 "General Technical Conditions for Resistance Measurement Devices: Circuit Resistance Testers" and the new version of the verification regulation JJG1052-2009 "Verification Regulation for Circuit Resistance Testers and Direct Resistance Meters" stipulate that the measured current for measuring the contact resistance of (isolation) switches, circuit breakers, etc. should not be less than 100A DC, and the minimum current maintenance time should not be less than 600S, to ensure the accuracy of the test results.
The operation panel of this instrument adopts an ergonomic design that conforms to operating habits. It adopts high-frequency switching power supply and digital circuit technology, and is suitable for measuring the circuit resistance of switch control equipment. The testing current adopts the DC 100A recommended by the national standard. The circuit resistance can be directly measured at a DC of 100A, and the test results are displayed on a large LCD TFT color screen with functions such as data storage, output printing, and time setting. There are 50A and 100A gears for users to choose from; Customized testing time, with a maximum set time of 600S, it is a very stable contact resistance tester with performance exceeding that of imported high current micro ohmmeters.Meet the requirements of on-site high-voltage switch maintenance and high-voltage switch factory circuit resistance testing by the power and power supply departments.


Technical parameters:
1.Measurement range: 0-50m Ω
2.Minimum resolution: 0.001 μ Ω
3.Measurement accuracy: ± (reading × 0.5%+1 μ Ω)
4.Test power supply: constant current and voltage limiting, approximately 5.0V
5.Test current: DC 50/100A
6.Test current accuracy: ± 5%
7.Measurement time: 10-600 seconds can be set
8.Special testing line: resistance<20m>
9.Charging power supply:Input 180V~240VAC, 50Hz/60Hz
10.Data storage: Store 100 sets of measurement data
11.Working environment: temperature -10~50 ºC, humidity ≤ 90%
12.Host weight: approximately 5.1kg (excluding cables)
13.Host volume: 320mm × 255mm × 175mm






FAQ

1. Is your company a sales company or a manufacturer?
Our company is an industrial and trade enterprise, with our own factory and lab, self-produced and self-sold. We were founded in 2013 and have 12 years of production experience, which has reliable production lines, test rooms and R&D centers.

2. Whether the goods are in stock, whether they can be customized, and how long the delivery time?
After the goods have been ordered, it takes about 7 working days for production if there are no accidents.

3. Is the quality guaranteed?
In order to ensure quality, we use imported components in large quantities. After three times of quality inspection, the goods can be sent out, and the export is in well package with fast shipping.

4. What are the after-sales terms?
We offer free consulting service, 1 year warranty, and adopt various methods such as email communication, video calls, technology door-to-door, aiming to solve any after-sales problems in a timely manner.

5. What are the cooperative countries or regions?
Products have been successfully exported to the United States, Brazil, Australia, Russia, the Netherlands, Indonesia, Bangladesh, Iran, India, Saudi Arabia, Mongolia, Japan and other countries and regions. In the United States, India, Vietnam and other regions have cooperative distributors, can provide thoughtful services.

6.Is customization supported?
We support customization in language use according to your requirement if the quantity ordered reaches.