Explosion proof integrated on-site display temperature transmitterThe explosion-proof performance of the equipment is designed and manufactured according to the national standard of "Explosion proof Electrical Equipment for Explosive Environments" (GB3836), and the thermoelectric characteristics comply with IEC standards, and have been tested and qualified by the National Instrument Explosion proof Safety Supervision Station. It is an ideal temperature sensor and transmission integrated product for explosive environments, which can be used in hazardous areas with flammable gases or vapors of flammable liquids. The intrinsically safe thermocouple temperature transmitter must be combined with the associated equipment safety barrier to form an explosion-proof system As a new generation temperature transmitter, it can be widely used in metallurgy, petroleum, chemical, power, light industry, textile, food, national defense, and scientific research departments.
The distribution parameter control range of explosion-proof cables used with intrinsically safe thermocouple temperature transmitters is: total inductance ≤ 2mH. The total electrical capacity is ≤ 0.06uF. Simultaneously using associated device safety barriers, select model MTL728 Z928、LB928， Safety barriers, please refer to the manufacturer's instructions for specific wiring. Explosion proof integrated on-site display temperature transmitter/transmitter series
Explosion proof integrated on-site display temperature transmittercharacteristic:
The transmitter components are miniaturized and placed inside the junction box of explosion-proof and intrinsically safe thermocouplesIntegrated temperature transmitterUsed for industrial sites. Supply wine flow meter/turbine flow meter
As an integrated temperature transmitter, it can directly output 4-20mA signals in industrial sites, which not only saves expensive compensation wires but also improves the anti-interference ability during long-distance signal transmission.
The transmitter components have high precision, low power consumption, wide temperature range, stable and reliable operation, and due to the use of silicone rubber sealing structure, the transmitter is shock resistant, temperature resistant, moisture resistant, and explosion-proof, suitable for installation and use in various harsh on-site environments.
Choose an explosion-proof temperature transmitter with thermocouple isolation, which isolates its input and output terminals to increase its resistance to mode interference and is more suitable for computer use. Explosion proof integrated on-site display temperature transmitter/transmitter series

Explosion proof integrated on-site display temperature transmitterSpecification

Thermal response time: see instruction manual
Accuracy level of platinum thermistor: Class B
Division number: Pt100. (resistance value at 0 ℃)
R=1000.12 Ω (Class B)
Allowable deviation: Δ t (℃) ± (0.30 0.005 ∣ t ∣) (Class B)
Input: Thermocouple: K，E
Thermal resistance: Pt100
Output: Within the range of measurement, output a 4-20mA DC signal that is linear with the input electrical signal of the thermistor or the millivolt signal input by the thermocouple, linear with the measured temperature of the thermistor, or linear with the measured temperature of the thermocouple
The temperature is linear.
Note: The output phase of the isolation temperature transformer is isolated, and the isolation voltage is 0.5KV.
Basic error: Calculation formula Δ=Δ 1 Δ 2
Allowable deviation of Δ 1 thermocouple (resistance)
Δ 2 transmitter basic error ± 0.5% FS
Transmission method: two-wire system
Transmitter working power supply: voltage low 12V, high 35V, rated working voltage 24V.
Load: The maximum load resistance is calculated according to the following formula
RL (max)=50 × (Vmin-12) (i.e. the load resistance can be selected within the range of 0-600 Ω at 24V, with a rated load of 250 Ω.)
a. Environmental temperature: -25 ℃ to 80 ℃ (not higher than 70 ℃ in hazardous areas).
b. Relative humidity: 5% to 95%.
c. Mechanical vibration: f≤55Hz， Amplitude<0.5mm
d. There is no medium in the surrounding air that can cause corrosion of the transmitter.
Explosion proof grade:
Explosion proof type: d Ⅱ BT4 d Ⅱ BT6 or d Ⅱ CT4 d Ⅱ CT6
Intrinsic safety type: ib Ⅱ BT4 ia Ⅱ BT4 ia Ⅱ CT6 (multi pair), associated equipment model MTL728 Z928、LB928。
Shell protection level: IP65
Allowable deviation of electromotive force