Operation explanation of non-contact fixed infrared thermometer JTCSG1500
Online infrared thermometers are mostly used for online temperature measurement in industrial production sites. They measure and transmit/display the temperature of a certain part of the production line in real time in the control room, and even directly participate in closed-loop control. Such a thermometer generally requires long-term stability and reliability.
Working principle: The infrared radiation emitted by the target object is collected by the optical probe, and the probe is focused on the optical fiber head of the infrared optical fiber, and the infrared signal is transmitted to the sensor by the optical fiber. After the sensor converts it into an electrical signal, it is processed by the subsequent processing circuit Process it and display it on the instrument box. At the same time, it can also participate in the closed-loop control of production through digital communication or 4-20mA output. The current intelligent instruments can set the upper and lower limit alarms by themselves, generate action signals, and directly participate in the control. Jintai's online thermometer is no exception. For example, this JTCSG1500 infrared thermometer is composed of infrared optical lens, filter, sensor and electric Composed of a signal processing unit, a laser, etc., it can detect infrared radiation from the target to be measured, and determine the temperature of the target according to its radiation intensity. It provides a three-wire 4-20mA current output, which can be easily installed in a variety of applications, especially suitable for installation in industrial environments that require long distances and strong interference. This model is made of copper-plated solder shell, which has good protection ability in industrial sites.
Precautions when operating the online thermometer:
Measuring channel and lens cleaning
The measurement channel should be kept clean. Dust and smoke will affect the transmission of radiant energy and reduce the measurement accuracy. The optical lens of the thermometer must be kept clean to avoid measurement errors or even damage to the lens due to dust, smoke and other pollutants. If there is dust on the lens. It can be wiped with a clean cotton swab or lens paper dipped in absolute alcohol.
electromagnetic interference
In order to prevent electromagnetic interference, try to keep the infrared thermometer away from electromagnetic field sources (such as motors, motors, high-power cables, etc.) during installation. If necessary, add a metal sleeve to improve the shielding effect.
Note: The shield of the sensing head should be well grounded.
high temperature radiation
When installing, try to prevent the infrared thermometer from directly aiming at high-temperature targets far beyond the measurement temperature range, such as the sun, high-temperature furnace, etc. At the same time, pay attention to avoid the influence of the reflection generated by the high temperature source near the target on the measurement accuracy.
