Guangzhou Chengmin Electronic Technology Co., Ltd. offers professional advantages in the supply of imported and domestic brand megohmmeters, insulation resistance testers, shake tables, and ground resistance meters. We provide a wide range of high-quality products at competitive prices. Welcome to inquire and purchase today!
Proper use of the MY40 megohmmeter is essential for accurate insulation resistance measurement. In modern life, electricity plays an essential role, and with it comes the need for electrical safety. Electrical equipment such as motors, cables, and household appliances must maintain good insulation to prevent leakage or short circuits. Insulation resistance is a key parameter that reflects the condition of insulating materials. When exposed to heat or moisture, insulation can degrade, reducing its resistance and increasing the risk of faults. To ensure safety, regular insulation resistance testing is necessary.
Unlike low-voltage measurements, which may not reflect actual conditions under high voltage, the megohmmeter (also known as an insulation resistance tester) provides reliable results by applying a high voltage during measurement. This makes it the most commonly used tool for this purpose. However, improper use can lead to errors, so it’s crucial to follow the correct procedures.
Before using a megohmmeter, several precautions should be taken:
1. Ensure the device under test is disconnected from power and short-circuited to ground.
2. Eliminate any possibility of induced high voltage before measuring.
3. Clean the surface of the object to reduce contact resistance.
4. Check that the megohmmeter is functioning properly by testing the “0†and “∞†points.
5. Place the instrument on a stable surface away from magnetic fields and large currents.
During the measurement process, proper wiring is critical. The megohmmeter typically has three terminals: “L†(line), “E†(earth), and “G†(guard). The “L†and “E†are connected to the conductor and ground, respectively. The “G†terminal is used to shield against surface leakage currents, especially when measuring cables or other objects with high humidity or dirty surfaces. Connecting the “G†terminal helps avoid errors caused by external leakage paths.
It's important to note that reversing the “L†and “E†connections can cause significant measurement errors. If reversed, the leakage current may bypass the shielding effect and distort the reading. Always ensure the correct connection to maintain accuracy.
To achieve precise and reliable results, the megohmmeter must be used correctly. Improper handling can compromise the integrity of your measurements and pose safety risks.
Here are some of the models we offer:
**Yokogawa Megohmmeters:**
MY40-01, MY10-01, MY10-02, MY10-03, MY10-04, MY10-05, 3213A41, 3213A42, 3213A43, 3213A44, 3213A45, 2406E31, 2406E41, 2406E32, 2406E42, 2406E33, 2406E43, 2406E34, 2406E44, 2406E35, 2406E45
**Hioki Megohmmeters:**
IR4016-20, IR4017-20, IR4018-20, IR4057-20, IR4056-20, 3455-20, 3490, 3151, FT6380
**Domestic Megohmmeters (Shanghai Sixth Factory, Kanghai, Far East, etc.):**
ZC25-1 (100V, 100MΩ), ZC25-2 (250V, 250MΩ), ZC25-3 (500V, 500MΩ), ZC25-4 (1000V, 1000MΩ), ZC25B-1 (100V, 100MΩ), ZC25B-2 (250V, 250MΩ), ZC25B-3 (500V, 500MΩ), ZC25B-4 (1000V~1000MΩ), ZC-7-1 (500V~1000MΩ), ZC-7-2 (1000V~2000MΩ), ZC-7-3 (2500V~5000MΩ), ZC-7-4 (5000V~10000MΩ), ZC8-1 (0-1-10-100Ω), ZC8-2 (0-1-10-100-1000Ω), ZC11D-1 (100V, 500 MΩ), ZC11D-2 (250V, 1000 MΩ), ZC11D-3 (500V, 2000 MΩ), ZC11D-4 (1000V, 5000 MΩ), ZC11D-5 (2500V, 10000 MΩ), ZC11D-6 (100V, 20 MΩ), ZC11D-7 (250V, 50 MΩ), ZC11D-8 (500V, 100 MΩ), ZC11D-9 (50V, 200 MΩ), ZC11D-10 (2500V, 2500 MΩ), ZC-18 (0-1-10-100, explosion-proof), ZC29B-1 (0-1-10-100-1000Ω), ZC29B-2 (0-1-10-100Ω)
For more information, visit [http://news.chinawj.com.cn](http://news.chinawj.com.cn). Editor: Hardware Business Network Information Center.
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