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Also known as integrated thermocouple temperature transmitter with thermocouple, refers to the thermocouple junction box waterproof or flameproof transmitter module load amplification (ie, temperature transmitter), with the sensor connected to form an integrated, output standard 4 -20mA current signal or it can output 0-5V or 1-5V voltage signal. Usually display instruments, recording instruments, computer and other facilities with a direct measurement of the production process within the range of 0 degrees -1300 degrees of liquid, vapor and gas and solid surface temperature. Features integrated thermocouple Integrated thermocouple wire output 4 ~ 20mA, anti-interference ability; savings compensation wire and installation costs temperature transmitter; measuring range; automatic cold junction compensation, non-linear correction circuit. Integrated thermocouple works Integrated thermocouple in the working state of the measured thermoelectric power changes through temperature transmitter bridge imbalance signal is amplified converted into 4 ~ 20mA DC signal to the working instrument, the meter will show the work corresponding temperature values. Integrated thermocouple product performance standards IEC584 IEC751 JB/T7391-1994 Features integrated thermocouple Output signal: 4 ~ 20mA, load resistance 250 1/2, the transmission wire resistance 100 1/2 Output Method: Two-wire Tolerance Level: 0.10.20.5 Power supply: 24V.DC ± 10% Protection: IP65 Insulation resistance: instrument output terminals and the insulation resistance between the shell shall not be less than 50 1/2 Thermal Response Time: When a step change in temperature occurs, the instrument output signal changes to a current equal to the step change to 50% of the time, usually τ0.5 said step response when the temperature stability of the transmitter time does not exceed a thermocouple (resistance) thermal response settling time τ0.5 the fifth, then the thermocouple (resistance) thermal response time as the instrument of the thermal response time; Integrated thermocouple temperature transmitter when the step response settling time of less than a thermocouple (resistance) thermal response settling time τ0.5-half, then use the temperature transmitter thermal response time as the instrument thermal response time . Basic error: the basic error of the meter shall not exceed the thermocouple (resistance) and temperature transmitters basic error of the composite error.
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