Temperature Transmitter

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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