Detailed Introduction

1Product Overview

DSRZH type aviation plug-in integrationtemperature transmittercorrectthermal resistance、thermocoupleThe perfect combination with the transmitter enables precise temperature measurement and control by converting temperature signals ranging from -200 to 1300 ℃ into standard 4-20mA current signals in a very simple manner. DSRZHtemperature transmitterIt can be used in conjunction with regulators such as display devices, control systems, and recorders, and is widely used in industrial fields such as petroleum, chemical, power generation, pharmaceuticals, textiles, and boilers.

2Product Features

☆ Two line output, no need for compensating wires, strong anti-interference ability, good long-distance transmission performance;

☆ Simple structure, easy installation, miniaturization, safety and reliability, long service life;

☆ LCD meter head can be configured to display on-site temperature, with high clarity and no visual error;

thermocoupledefinition:
Chinese name:thermocouple

English name:thermocouple

thermocoupleIt is a commonly used temperature measuring element in temperature measuring instruments, which is composed of two conductors with different compositions connected at both ends to form a circuit. When the two junction points are connectedthermocoupleWhen the temperature is different, a thermal current will be generated in the circuit. ifthermocoupleWhen there is a temperature difference between the working end and the reference end, the display instrument will indicatethermocoupleThe temperature value corresponding to the generated thermoelectric potential.thermocoupleThe thermoelectric heating will increase as the temperature at the measuring end rises, and its magnitude is only proportional tothermocoupleThe material is related to the temperature at both ends, and is independent of the length and diameter of the thermoelectric electrode. variousthermocoupleTheir appearance is often very different due to needs, but their basic structure is roughly the same, usually composed of main parts such as hot electrodes, insulation sleeves, protective tubes, and junction boxes. They are usually used in conjunction with display instruments, recording instruments, and electronic regulators.

overview:
　　thermocoupleIt is a temperature sensing element and an instrument. It directly measures temperature and converts the temperature signal into a thermoelectric potential signal, which is then converted into the temperature of the measured medium through electrical instruments (secondary instruments).thermocoupleThe basic principle of temperature measurement is that two conductors with different compositions form a closed circuit. When there is a temperature gradient at both ends, current will flow through the circuit, and there will be an electromotive force - thermoelectric force - between the two ends, which is called the Seebeck effect. Two homogeneous conductors with different compositions are thermoelectric electrodes, with the higher temperature end as the working end and the lower temperature end as the free end, which is usually at a constant temperature. Based on the functional relationship between thermoelectric potential and temperature, makethermocoupleDividing table; The graduation table is obtained under the condition that the free end temperature is at 0 ℃. DifferentthermocoupleHaving different graduation tables. existthermocoupleWhen a third metal material is connected to the circuit, as long as the temperature of the two contacts of the material is the same,thermocoupleThe generated thermoelectric potential will remain unchanged, i.e. not affected by the third metal entering the circuit. Therefore, inthermocoupleWhen measuring temperature, a measuring instrument can be connected, and after measuring the thermoelectric potential, the temperature of the measured medium can be determined. ArmorthermocoupleWhen measuring temperature, it is required that the temperature of its cold end (the measuring end is the hot end, and the end connected to the measuring circuit through a lead is called the cold end) remains constant, so that the magnitude of its thermoelectric potential is proportional to the measured temperature. If the temperature changes at the cold end during measurement, it will seriously affect the accuracy of the measurement. Taking certain measures to compensate for the impact caused by temperature changes at the cold end is calledthermocoupleThe cold end compensation is normal.