The sensor is not stable. Wait for a few seconds to return to normal; If the value is displayed for a long time, check whether the sensor is within the specified temperature range.

The reason is that the dialing address is wrong and the equipment has no communication address. It is necessary to check whether the dialing switch is properly dialled.

Address conflict or poor contact of communication line, check whether the communication light is normal; Check whether the cascade device addresses conflict; Check whether the communication line is damaged.

Check whether the power cord is connected properly, or replace the power cord.

Optical fiber sensor is an important instrument of the more popular sensors. The development of optical fiber sensor technology plays a vital role in the development of different industries. Optical fiber temperature measurement technology is the most promising technical direction in optical fiber sensing technology. Because optical fiber temperature sensor has many unique advantages that other temperature sensors do not have, it can be widely used in the power and voltage industry, such as high DC electric field environment, high frequency field environment, microwave field temperature monitoring and other environments.

The types of fiber temperature sensors can be divided into fiber grating temperature sensors, distributed temperature sensors, dual wavelength fiber temperature sensors and fluorescent fiber temperature sensors.

The quality level of the optical fiber temperature sensor installed by different manufacturers will affect the accuracy of the temperature measurement of the detected object. Therefore, special attention shall be paid to the routing and path of the optical fiber during the optical fiber wiring. During the installation of the fluorescent optical fiber, the optical fiber shall be prevented from being damaged by external forces, and from being pulled or broken during the equipment operation.