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
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.
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.
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.
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.

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
Switchgear Maintenance
Switchgear contact resistance measurement provides proper functioning by monitoring resistance levels.
Power Plants
Crucial for testing circuit breakers to prevent disruptions in energy transmission.
Industrial Installations
Maintains the performance and integrity of large electrical systems in factories.
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

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. |

Our Certificates

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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