IITemperature sensing transmittercharacteristic

1. Adopting an epoxy resin sealing structure, it is earthquake resistant, temperature resistant, and suitable for installation and use in harsh on-site environments.

2. Installed on-site in the junction box of thermal resistors and thermocouples, it directly outputs 4-20mA, which not only saves expensive compensation wire costs, but also improves the anti-interference ability during long-distance signal transmission.

3. High precision, low power consumption, wide temperature range for use, stable and reliable operation.

4. The range is adjustable and has a linearization correction function. The thermocouple temperature transmitter has a cold end automatic compensation function. Application scope

3、 Main technical specifications of temperature sensing transmitter

1. Input: Thermal resistance Pt100, Cu50, Cu100

Thermocouples K, E, S, B, T, J, N

2. Output: Within the range of measurement, outputting a 4-20mA DC signal can be linear with the output resistance signal of the resistance thermometer and linear with the input temperature signal of the resistance thermometer; It can be linear with the millivolt signal input by the thermocouple, or linear with the temperature signal input by the thermocouple thermometer.

3. Basic error: 0.1 level, 0.25 level, 0.5 level

4. Transmission method: two-wire system

5. The working power supply voltage of the transmitter is very low at 12V and very high at 35V, with a rated working voltage of 24V.

6. Load: The maximum load resistance is calculated according to the following formula

RL（max）=50×（Vmm-12）

At 24V, the load resistance can be selected within the range of 0-600 Ω, with a rated load of 250 Ω.

Note: The range adjustable transmitter requires repeated debugging of zero and full scale when changing the range; The thermocouple type transmitter needs to be preheated for 30 minutes before debugging.

7. Environmental temperature impact ≤ 0.05% 1 ℃

8. Normal working environment:

a、 Environmental temperature -25 ℃~+80 ℃

b、 Relative humidity 5% to 95%

c、 Mechanical vibration f ≤ 55Hz, amplitude ＜ 0.15mm

4Temperature sensor transmitter manufacturerModel and category