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Difference between electric quantity transmitter and signal isolator

Author: Suzhou Xunpeng source: original date: 2020 / 10 / 13 13 13:39:08 popularity: 38

Power transmitter is an industrial equipment, and its application range is also very wide. However, many people cannot distinguish between a power transmitter and an isolator.

The electric quantity transmitter is a measuring instrument that converts the measured parameters AC current, AC voltage, active power, reactive power, active power, reactive power, frequency, phase, power factor, DC voltage, DC current, etc., and converts them into linear proportional DC current or voltage (power pulse output).

The transmitter's international standard output 4 ~ 20mA analog signal current value of the two-wire loop is widely used in sending data and controlling some actuators that are easy to accept instructions according to the standard. The scope of application mainly includes: electrical measurement, automatic control and dispatching system of electric power, petroleum, coal, metallurgy, railway, municipal government and other departments.

What is an isolator?

Isolator is a kind of module with linear electromagnetic isolation principle, which can convert input signal into output signal. Input, output and working power supply are isolated from each other, which is especially suitable for equipment and instruments requiring electrical isolation. Isolators are also known as Signal isolator Is an important part of industrial control system.

The isolator adopts advanced digital technology and has excellent performance in suppressing high and low frequency interference signals. Even in the high power frequency conversion control system, it can still be applied reliably. The isolator adopts advanced technologies such as digital calibration, zero free and full potentiometer, zero automatic dynamic calibration, automatic temperature drift compensation and so on. In line with iec61000-4-4 standard: the application of this series of technologies ensures the stability and reliability of products scientifically.

    Signal isolator It can be used with unit combination instrument, distributed control system, programmable controller and other systems. It is widely used in major projects in oil field, petrochemical, manufacturing, electric power, metallurgy and other industries.

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