WZPB-240S integrated thermistor temperature transmitter

ZPB-240SIntegrated temperature transmitter,WZPB-241SIntegrated 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.

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WZPB-240SIntegrated temperature transmitter,WZPB-241SIntegrated temperature transmitterworking principle
WZPB-240SIntegrated temperature transmitter,WZPB-241SIntegrated 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
WZPB-240SIntegrated temperature transmitter,WZPB-241SIntegrated temperature transmitterfeature
1. On site display: divided into LED and LCD backlight display;
2. Two line output 4-20mA DC stacked HART communication protocol, strong resistance, 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 grade: d Ⅱ TC4, d Ⅱ TC5, d Ⅱ TC6

WZPB-240S integrated thermistor temperature transmitterDivision number: PT100

Thread: Specific according to customer needs

Pipe thread: 1/2 1/4 3/8 3/4 ...

Installation thread: M16 * 1.5 M20 * 1.5 M12 * 1 M12 * 1.5

Output signal: 4~20mA, load resistance 250 1/2, transmission wire resistance 100 1/2
Output method: Two line system
Tolerance level: 0.10.20.5
WZPB-240S integrated thermistor temperature transmitterPower supply: 24V DC ± 10%
Protection level: IP65
Insulation resistance: The insulation resistance between the instrument output terminal and the casing should not be less than 50 1/2
Thermal response time: When there is a step change in temperature, the time required for the current output signal of the instrument to change to 50% of the step change is usually expressed as τ 0.5. When the step response stabilization time of the temperature transmitter does not exceed one-fifth of the thermocouple (resistance) thermal response stabilization time τ 0.5, the thermocouple (resistance) thermal response time is used as the thermal response time of the instrument;
When the step response stability time of the temperature transmitter does not exceed half of the thermocouple (resistance) thermal response stability time τ 0.5, the thermal response time of the temperature transmitter is used as the thermal response time of the instrument.
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.