What should I do if the electromagnetic meter is large?

The head of the electromagnetic type electrical instrument is mainly composed of fixed iron piece, moving iron piece, fixed coil, damper, rotating shaft, balance spring, pointer, etc. It has the characteristics of simple structure, strong overload capability, dual AC and DC, low cost and so on. . But the scale is not uniform. Sensitivity and accuracy are worse than magnetoelectric instruments, and the ability to prevent external magnetic interference is also poor, so it is only suitable for dry industrial use. For example, 81TZ-AV type, 2.5 level meter, etc.

Â Â Â Â The causes and troubleshooting methods that cause large errors in electromagnetic electrical instruments are as follows:

Â Â Â Â 1. The inductance of the measuring circuit is too large. During maintenance, a shunt capacitor can be used to reduce the inductive reactance; it can also be solved by a winding method that changes the additional resistor.

Â Â Â Â 2. The residual magnetism of the ferromagnetic component in the measuring mechanism is too large. The parts that are easily magnetized in the measuring mechanism should be demagnetized.

Waveguide Fixed Attenuator

Zysen provides a range of waveguide fixed attenuators that operate from WR10 to WR650. They are available in multiple attenuation configurations 3 dB, 6 dB, 10 dB, 20 dB, 30 dB. These attenuators can handle an average power from 2 to 100 W. They are available with choke flange, cover flange, and grooved flange and are RoHS compliant.

Variable Rf Attenuator,Waveguide Fixed Attenuator,Fixed Attenuator In Microwave,Fixed And Variable Attenuator In Microwave

Chengdu Zysen Technology Co., Ltd. , https://www.zysenmw.com