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Temperature Transmitter

Our temperature transmitter employs thermocouple, RTD, etc. as the temperature sensor. The sensor serves to output signal to the transmitter module. Through processes such as voltage stabilization, smoothing, operational amplification, non-linearity correction, voltage to current conversion, constant current and reverse polarity protection, the signal from the sensor is converted into 4~20mA electrical current signal which has linear relationship with the temperature.

Temperature transmitters are widely used for industrial temperature measurement and process control purposes in fields such as textile, rubber, metallurgy, pharmaceutical, and food processing.

Technical Specifications
Type Temperature range ( ℃ ) Min. measuring range ( ℃ ) Absolute error Intrinsic error
K 0~1300 120 ±1 ℃ ±0.2%
E 0~1000 80 ±1 ℃ ±0.2%
S 0~1600 580 ±3 ℃ ±0.2%
B 400~1800 1000 ±3 ℃ ±0.2%
R 0~1600 850 ±3 ℃ ±0.2%
T -200~400 120 ±1 ℃ ±0.2%
N 0~1200 180 ±3 ℃ ±0.2%
W 0~2300 340 ±3 ℃ ±0.2%
J 0~1200 100 ±3 ℃ ±0.2%
Thermocouple Transmitter Specifications
Input
Thermocouple type K, E, S, B, T, J, etc.
Measuring range ( ℃ ) 0-1300, 0-1000, 0-1600, 400-1800, -200 to 400, 0-1200
Input resistance ≥20KΩ
Cold junction compensation -15 ~ +75 ℃
Output
Output current 4 ~ 20mA
Output circuit power supply 12 ~ 30VDC
Min. working voltage 12VDC
Comprehensive parameters
Standard accuracy ±0.2%
Temperature drift Intrinsic error /10 ℃
Lead-wire compensation of thermocouple ±0.1% (0 ~ 10Ω)
Error caused by load change ±0.1% (within allowable load)
Error caused by power supply fluctuation ±0.1% (12 ~ 30V)
Starting up response time <1S (0 ~ 90%)
Operating temperature -20 ~ +70 ℃
Protection grade IP00/IP54 (determined by protection grade of sensor)
Electromagnetic compatibility IEC61000, EN61000
RTD Transmitter Specifications
Input
Measuring range Pt100 RTD: -200~850 ℃
Cu50 RTD: -50~150 ℃
Min. temperature range 50 ℃
Lead resistance ≤10Ω
Output
Output current 4 ~ 20mA
Output circuit power supply 12 ~ 30VDC
Min. working voltage 12VDC
Relationship between load resistance and power supply voltage
Load resistance (including lead resistance) = power supply voltage (V) - 12 (V) /0.02A
Comprehensive parameters
Standard accuracy ±0.2% (custom accuracy is available)
Temperature drift Intrinsic error /10 ℃
Lead-wire compensation of RTD ±0.1% (0 ~ 10Ω)
Error caused by load change ±0.1% (within allowable load )
Error caused by power supply fluctuation ±0.1% (12 ~ 30V)
Starting up response time <1S (0 ~ 90%)
Operating temperature -20 ~ +70 ℃
Protection grade IP00/IP54 (determined by protection grade of sensor)
Electromagnetic compatibility IEC61000, EN61000
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