HUAYI: Professional Contact Resistance Tester Manufacturer

 

Wuhan HUAYI Electric Power Technology Co.,Ltd. (HUAYI for short) is a professional manufacturer in China, researching and manufacturing electric testing equipment. HUAYI insist developing and marketing independently, and make efforts to improve the products quality, reduce cost, and improve efficiency.

 

 
 
Why Choose Us

Rich Experience

The company was established in 2005 and has more than ten years of professional experience. It is one of the earliest manufacturers of high-voltage testers in China.

Professional Technology Support

Specialize in testing and solutions for more than 18 years. Own experienced engineers. Professional on delivery, installation, debugging, and training.

ISO Certification

We have a professional R&D technical team and strict quality control to ensure safety, accuracy and efficiency. Passed ISO9001 certification and obtained relevant patent certificates.

24 hours After-sales

Professional after-sales service, paying attention to customers' feedback about products; Providing solutions within 24 hours, if the customers have any problem; Act quickly and efficiently.

 

Product Parameter

 

 

HLY-200C

HLY-200A

HLY-100A

HLY-100B

HLY-100C

Test range

0~2999.9μΩ

0~1999 μΩ

0~1999 μΩ

1~1999μΩ

0~2999.9μΩ

Resolution

0~99.99, 0.01μΩ

100.0~2999.9, 0.1μΩ

1μΩ

1μΩ

1μΩ

0~99.99, 0.01μΩ

100.0~2999.9, 0.1μΩ

Measured current

DC 50A, 100A, 150A, 200A fixed output

DC 50A,100A, 150A, 200A fixed output

DC 0~100A

DC 50A,100A Two-gear output

DC 50A, 100A fixed output

Accuracy

±(0.5% rd+2d)

0.5%±1d

0.5%±1d

0.5%±1d

±(0.5% rd+2d)

Continuous working time

5s~599s

5s~599s

5s~599s

5s~599s

5s~599s

Display

LCD

LCD

LCD

LCD

LCD

Connection

USB

USB

USB

USB

USB

Power supply

AC220V±10% 50Hz

AC220V±10% 50Hz

AC220V±10%,50Hz

AC220V±10%,50Hz

AC220V±10% 50Hz

Power

1200W

 

 

 

600W

Max storage

200

200

200

200

200

Service conditions

Temperature -10℃~40℃, humidity:≤80%RH

Temperature -10℃~40℃, humidity:≤80%RH

Temperature:-10℃~40℃;humidity:≤80%RH

Temperature:-10℃~40℃;humidity:≤80%RH

Temperature -10℃~40℃, humidity:≤80%RH

Printer

Built-in

No

No

No

Built-in

Dimension

380×310×260 mm

370×320×260 mm

300×290×220mm3

300×290×220mm3

360×300×250 mm

Weight

11Kg(not including accessory)

9.6Kg(not including accessory)

6kg(not including accessory)

6kg(not including accessory)

8Kg(not including accessory)

 

 
Advantages of Contact Resistance Tester
 
01/

Identify Potentially Hazardous Equipment
One of the primary benefits of using a contact resistance tester is that it can help identify potentially hazardous equipment. This proactive approach prevents major faults, minimizes unplanned downtime, and extends the lifespan of electrical components.

02/

Ensure Reliable Equipment Operation
In addition to safety benefits, acontact resistance tester can also help ensure reliable equipment operation. These safeguards protect both the user and the equipment under test, ensuring safe, stable, and repeatable measurements even in demanding industrial environments.

03/

Easy to Use
Contact resistance testers are designed to be easy to use and provide accurate readings. They typically come with easy-to-read displays and are equipped with features that make them simple to operate.

04/

Data Logging
Advanced models include data storage, USB/Bluetooth connectivity, and PC software, allowing users to record multiple test results, generate reports, and analyze resistance trends over time.

 

CB Timing Analyzer With Dynamic Resistance Measurement

 

The Difference Between a Micro-Ohmmeter and a Contact Resistance Tester

Measurement Current and Accuracy
Micro-ohmmeter: Typically offers a wide range of test currents, from a few milliamps to higher currents depending on the model. However, the current is often lower than that of a contact resistance tester. Micro-ohmmeters are very precise, making them suitable for low-power or small-scale applications.
Contact Resistance Tester: Generally uses higher test currents, often above 10A and sometimes reaching up to 100A or more. This high current allows it to better simulate the real operational conditions of high-power connections, ensuring accurate results that reflect the resistance under load.

 

Special Features
Micro-ohmmeter: Often has general features like four-wire (Kelvin) measurement for accuracy, along with data logging and averaging functions for stable readings. It may also include automatic temperature compensation and other features beneficial for sensitive low-resistance measurements.
Contact Resistance Tester: May include specific features such as high-current injection, automatic polarity reversal to prevent errors from thermal EMF, and may be designed to measure contact resistance under specific load conditions to simulate real-life operation of high-power equipment.

 

Application of Contact Resistance Tester
1

Switchgear Maintenance

Switchgear contact resistance measurement provides proper functioning by monitoring resistance levels.

2

Power Plants

Crucial for testing circuit breakers to prevent disruptions in energy transmission.

3

Industrial Installations

Maintains the performance and integrity of large electrical systems in factories.

4

Electrical Industry

Applied in factory testing of electrical components to ensure that all conductive connections meet design specifications.

 

Operation Precautions
 

Please read the manual carefully before using the instrument.

During the test, ensure good contact and do not move the test clamp.

After the test is over, turn off the power supply and remove the test lead after the discharge is completed.

If any abnormality occurs during the instrument test, please shut down and restart.

Avoid applying excessive current or voltage to the tested circuit to avoid burning or damaging the tested circuit or testing instrument.

Follow the operating manual or instructions of the testing instrument for operation. Follow the correct operating steps and procedures to avoid errors or damage to the testing instrument.

 

Production Line

 

 

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How To Cooperate With Us

 

 

Inquiry: You can contact us online or sending us an inquiry. Please provide the details of your requirements as clear as possible. So we can send you the offer at the first time.
Phone Number: (+86)-18062012971/whatsapp:+8618064115448
E-mail: sales@sinohipot.com/ tina@sinohipot.com

 

Custom Plan Development: During the consultation, we’ll evaluate your specific requirements and together, craft a custom quality assurance plan tailored to your needs.

 

Agreement and Setup: Once you’re satisfied with the plan, we’ll finalize the details and set up everything needed to get started.

 

Quality Assurance Implementation: Our team will then implement the quality assurance protocols on your selected products or processes.

 

Delivery: Deliver cargos by sea or by air according to requirement. 

 

Packaging and Delivery

 

 

Packing detail:

Packing with wooden cases, provide different solutions of shipping way.

Payment:

We accept many payment term, such as T/T, Western Union, L/C.

Warranty period:

One-year warranty, Installation, and commissioning of specific products.

Delivery time:

Most of our products are in stock and can be delivered upon payment. The delivery time usually does not exceed 15 days.

 

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Our Certificates

 

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FAQ

Q: When can I get the price?

A: Usually we quote within 24 hours after we get your inquiry.

Q: What is your minimum order quantity, can you send me samples?

A: Our minimum order quantity is 1 set, and the sample shipping fee needs to be provided by you.

Q: Do you have the products in stock

A: Most Of our tester has stock.You can contact us to make sure

Q: Is there the products tested before shipping?

A: Our products undergo factory testing and are accompanied by reports.

Q: Would you have a discount?

A: Yes we could offer different discount according to your order quantity. We also hold regular promotional activities every year.

Q: Have your products been exported?

A: We have more than 10 years of export experience. Please contact us to confirm if there is a local partner.

Q: What about the transportation?

A: Usually we take door to door express delivery ,cause it's more convenient and fast.

Q: What is the purpose of the contact resistance tester?

A: Contact resistance testers are usually performed using a micro/milliohm meter or a low ohmmeter. The measurement of contact resistance helps to identify fretting corrosion of contacts and can diagnose and prevent contact corrosion.

Q: What are the Difference between Contact Resistance tester and Winding Resistance Tester?

A: The function of DC winding resistance tester is to detect the winding resistance of transformers, motors and other windings, this instrument circuit will exist inductive reactance or capacitive reactance, so it is impossible to enter the high-current test, unless the instrument has a large capacity of the test device, otherwise it is difficult to use. The general resistance value of the contact resistance tester is very small, which is microohm level, which refers to the on-contact resistance of the disconnector and circuit breaker. Therefore, the oxide film must be destroyed after the large current is passed during the detection, so that the true DC resistance value of the circuit can be tested.

Q: What is a Contact Resistance Tester?

A: A Contact Resistance Tester is an electrical testing device used to measure the resistance of electrical contacts, joints, or connections, such as circuit breakers, switches, and busbars. It helps ensure that connections have low resistance for reliable current flow.

Q: What types of equipment can be tested?

A: Contact Resistance Testers can test circuit breakers, disconnecting switches, busbar joints, relays, cable joints, and transformer connections.

Q: What maintenance does a Contact Resistance Tester require?

A: Regularly inspect test leads and clamps, clean connectors, ensure battery health, and perform periodic calibration according to manufacturer recommendations.

Q: What factors can affect contact resistance measurements?

A: Surface contamination (oxidation, dirt, corrosion).
Contact pressure.
Ambient temperature.
Test current magnitude.
Length and quality of test leads.

As one of the most professional contact resistance tester manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy cheap contact resistance tester made in China here from our factory.

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