3 IN 1 Water Quality Tester EC TDS 9990 PPM Temperature

The temperature instrument adopts a modular structure scheme, which is simple in structure, convenient in operation, and cost-effective. It is widely used in metallurgy, electric power, plastics, food, packaging machinery and other industries, as well as in systems requiring multi segment curve programmed temperature rise/drop control.

Temperature instrument is a branch of many instruments. Common temperature instruments include thermometer, temperature recorder, temperature converter, etc.

Temperature measuring instruments can be divided into two categories: contact type and non-contact type. Generally speaking, the contact temperature measuring instrument is simple, reliable and has high measurement accuracy; However, due to the need for sufficient heat exchange between the temperature measuring element and the measured medium, and the need for a certain time to reach the thermal balance, there is a delay in temperature measurement. At the same time, due to the limitations of high temperature resistant materials, it cannot be used for very high temperature measurement. The non-contact instrument temperature measurement is based on the thermal radiation principle. The temperature measuring element does not need to contact the measured medium. The temperature measurement range is wide, and it is not limited by the upper limit of temperature measurement, nor will it damage the temperature field of the measured object. The reaction speed is generally fast; However, due to the external factors such as the emissivity of the object, measurement distance, smoke and moisture, the measurement error is large.

The temperature instrument is usually divided into primary instrument and secondary instrument. The primary instrument is usually thermocouple, thermal resistance, bimetal thermometer, local temperature indicator, etc. The secondary instrument is usually temperature recorder, temperature patrol detector, temperature indicator, temperature regulator, temperature transmitter, etc.

Intelligent temperature control instrument

The intelligent temperature control instrument is controlled by a single chip microcomputer and can input various thermocouples, thermal resistances or linear signals. It has the function of transmitting PV and SV values. The five output modes only need to plug in the corresponding modules, and the positive and negative control can be set arbitrarily; High performance, good quality, low price, four alarm modes are provided; Manual and automatic switching. The master control has two control modes, namely, two position control and PID control. The intelligent temperature control instrument is strictly tested before delivery, which improves the reliability of the instrument. Common failures of temperature control instruments are generally caused by improper operation or parameter setting. The instrument is equipped with RS-485 multi host communication mode to connect with the upper computer. Through the cooperation of communication protocol, the DCS operating system can be formed.

Digital display temperature control meter

The digital temperature control instrument is a three or four digit digital tube display with a single signal input. The unique anti-interference technology is applied, with high precision, good control effect and convenient installation. It also has many control modes, such as two position, three position, upper and lower limit difference, time proportion, silicon controlled continuous adjustment, position PID, PID continuous adjustment, etc. The technical indicators of the products have reached the domestic advanced level. The over temperature alarm function can also be added to the temperature instrument as required, which can be widely used in metallurgy, machinery, textile, plastics, refrigeration, oven, etc. for temperature measurement and automatic control.