Temperature transmitter is an instrument that converts a temperature variable into a standardized output signal that can be transmitted. Output signal 4~20mA two wires.
The temperature transmitter adopts thermocouple and thermal resistance as the temperature measuring element. The output signal from the temperature measuring element is sent to the transmitter module. After voltage stabilization filtering, operational amplification, nonlinear correction, V/I conversion, constant current and reverse After protection and other processing, it is converted into 4～20mA, 0-5V/0-10V signal, RS485 digital signal output.
Temperature Transmitter 4-20mA
SBWR thermocouple temperature transmitter, and SBWZ thermal resistance temperature transmitter are field-mounted temperature transmitter units in thermocouple and thermal resistance series instruments.
The SI-SBW series integrated temperature transmitter, is a perfect combination of temperature sensor and transmitter.
It converts the temperature signal in the range of -200~+1600 °C, into two-wire 4~20mA DC signal transmission in a very simple way.
Accurate measurement and control of temperature for displays, regulators, recorders, DCS, etc.
RTD Temperature Transmitter
An RTD Temperature Transmitter (Resistance Temperature Detector or Resistance Temperature Device) is one of the most prevalent temperature sensors used in industry today.
Also commonly referred to as PT100/PT1000, its resulting popularity is due to its accuracy and repsonse, at temperatures between -300 to + 600 ° C.
Industrial thermal resistance is used as a temperature measuring sensor. It is usually used with instruments, recorders, and electronic regulators.
Field Mounted HART Temperature Transmitter
The Series SI-SBW HART® temperature transmitter is a 2-wire transmitter, with an analog output.
It has measurement input for resistance thermometers (RTD) in 2-, 3- or 4-wire connections, thermocouples, resistance and voltage inputs.
The transmitter can be programmed with a PC or HART® protocol hand-held terminal.
These small units can be mounted in Pyromation DIN (Form B) connection heads, or they can be used for surface mounting by using a 35 mm DIN-rail mounting clip.
Extended reading: RTD vs. Thermocouple: What’s the Difference, and Which Should You Use?
What is a temperature transmitter
Temperature transmitter is a device that converts physical measurement signals or ordinary electrical signals into standardized electrical signal output or can be output by means of communication protocols. Mainly used for measurement and control of temperature parameters in industrial processes. The current transmitter converts the AC current of the main circuit under test into a constant current loop standard signal, which is continuously transmitted to the receiving device.
The temperature variable is transformed into the appearance of a transmittable standardized output signal (4-20mA is common in industry).
The temperature transmitter uses thermocouple and thermal resistance as the temperature measuring element. The output signal from the temperature measuring element is sent to the transmitter module. Through voltage stabilization filter, calculation expansion, nonlinear calibration, V/I conversion, constant current and reverse After maintenance and other circuit processing.
Extended reading: Tri Clamp Sanitary Thermometers
Temperature Transmitter Working Principle
The heat balance is achieved through conduction or convection, so that the indication value of the thermometer can directly indicate the temperature of the measured object. Generally, the measurement accuracy is high.
Within a certain temperature range, the thermometer can also measure the temperature distribution inside the object. But for moving objects, small targets or objects with small heat capacity, larger measurement errors will occur.
The temperature transmitter generally consists of a temperature measuring probe, that is, a thermocouple or thermal resistance sensor and a two-wire solid electronic unit. The temperature measuring probe is directly installed in the junction box in the form of a solid module to form an integrated transmitter.
Temperature transmitters are widely used in industries, agriculture, commerce and other sectors.
With the wide application of cryogenic technology in national defense engineering, space technology, metallurgy, electronics, food, medicine and petrochemical sectors, and the research of superconducting technology.
Low-temperature thermometers that measure temperatures below -153°C have been developed, such as low-temperature gas thermometers and vapor pressure thermometers.
Sino-Inst, Manufacuturer for Temperature Transmitters, like: Armoured thermocouple, assembly thermocouple, explosion-proof thermocouple, etc.
Sino-Inst’s Temperature Transmitters, made in China, Having good Quality, With better price. Our Temperature measurement instruments are widely used in China, India, Pakistan, US, and other countries.
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