Integrated temperature transmitter

WZPB-241SOn site displayIntegrated temperature transmitter1、 Product applicationWZPB-241SOn site displayIntegrated temperature transmitterIt is usually used in conjunction with display instruments, recording instruments, electronic computers, PLCs, DCS systems, etc. When used in conjunction with integrated thermocouples (resistors), it can directly display the actual measured temperature on site. Its display methods include on-site LED and LCD display, and it has backlight, which can read accurate numbers clearly at night and under strong sunlight. In addition, the temperature signal is converted into a 4-20mA DC current signal and a stacked HART communication protocol to directly measure the temperature of liquids, vapors, gases, and solid surfaces within the range of -200 to 1800 ℃ in various processes. 2、 Product features: 1. On site display: divided into LED and LCD backlight displays; 2. Two line output 4-20mA DC stacked HART communication protocol, strong anti-interference ability, saving expensive compensation wires; 3. Wide measurement range, easy debugging, on-site adjustable division number and range; 4. Automatic cold end compensation, digital intelligent nonlinear correction 5, protection level: IP65 6, explosion-proof level: dIITC4, dIITC5, dIITC6 3, working principle WZPB-241SOn site displayIntegrated temperature transmitterThe explosion-proof thermocouple (resistor) contained in it utilizes the principle of gap isolation. When an explosion occurs inside the chamber, it can be extinguished and cooled through the gap of the junction box, so that the flame after the explosion cannot be transmitted outside the chamber, thus achieving the explosion-proof effect. The working principle of thermocouple resistance is to directly convert the thermoelectric potential and resistance signals measured by the thermocouple (resistance) into 4-20mA DC current signals and digital (HART) signals, which are directly transmitted to the upper computer. The working instrument can display the corresponding temperature. 4. Technical indicators: 1. Implementation standard IEC584 IEC571 JB/T7391-1994 JB/T5518-1991 2. Range error: 1) Temperature measurement range and tolerance of thermistor 3. Output signal: 4-20mA, load resistance: 250, transmission wire resistance: 100 4. Output method: two-wire system 5. Accuracy level: Temperature transmitter Accuracy level: 0.1 0.2 0.5 Display accuracy level: Analog type 0.5 level; Intelligent 0.5 level 6. Power supply: 24V. DC ± 10 ℅ 7. Protection level: IP65 8. Explosion proof level: Explosion proof type: d Ⅱ BT4 d Ⅱ CT5 d Ⅱ CT6. Intrinsic safety type: ia Ⅱ CT6 9. Insulation resistance: The insulation resistance between the instrument output terminal and the housing should not be less than 50.10. Thermal response time: When the temperature undergoes a step change, the time required for the instrument's current output signal to change to 50% of the step change is usually represented by t0.5. When the step response stability time of the temperature transmitter does not exceed one-fifth of the thermocouple (resistance) thermal response stability time t0.5, the thermocouple (resistance) thermal response time is used as the thermal response time of the instrument. Time; When the step thermal response stability time of the temperature transmitter does not exceed half of the thermocouple (resistance) thermal response stability time t0.5, the thermal response time of the temperature transmitter is used as the thermal response time of the instrument; 11. Basic error: The basic error of the instrument should not exceed the combined error of the basic errors of the thermocouple (resistor) and temperature transmitter. 5、 Product model WZPB-241SOn site displayIntegrated temperature transmitteryesOn site displayIntegrated temperature transmitterA series of products with multiple models, commonly used models include: WZPB-240SOn site displayIntegrated temperature transmitterThe specific models are as follows: WRMB-240M, WRMB-240S, WRMB-240GM, WRMB-240GS, WRNB-240M, WRNB-240S, WRNB-240G