The AT302 series intelligent temperature transmitter uses high-precision thermocouples and thermal resistance sensors to directly measure the temperature of liquid, steam, and gas media within the range of -200 to 900 ℃ in various industrial processes. The temperature is converted into a 4-20mA unified output signal proportional to the thermocouple and thermal resistance electrical signal, which is displayed on the LCD screen on site.

The AT302 series intelligent temperature transmitter is a temperature instrument with a microprocessor as its core, which can be applied in metallurgy, petroleum, chemical, power, light industry, textile, food and other fields.

Product Features

The transmitter has a compact structure, is sturdy and reliable

On site digital display measuring temperature

Two wire system 4-20mA, HART protocol

Strong anti-interference ability

High precision, wide temperature range

Shock resistant, moisture resistant, suitable for harsh on-site environments

Remarks

Integrated thermocouple and thermistor temperature transmitter consist of thermocouple or thermistor and transmitter components.

Thermocouples include components, protective tubes, junction boxes, and other main parts; thermal resistors include thermal resistance components, protective tubes, junction boxes, and other main parts; The protective tubes and junction boxes of both are the same.

The thermocouple element is composed of armored thermocouples; Thermal resistance elements are composed of armored platinum resistors.

Protective tube: requires high temperature resistance, corrosion resistance, ability to withstand rapid temperature changes, good airtightness, and sufficient mechanical strength. It is now composed of two different grades of stainless steel tubes.

The junction box is made of aluminum alloy and is waterproof with a protection level of IP65

Transmitter components: consisting of a housing, cover plate, circuit board, terminal posts, etc., the electronic components are sealed inside the housing using silicone rubber sealing method, and therefore cannot be disassembled.

• AT302 temperature transmitter. pdf