1、 Overview

The on-site temperature display device is an on-site installed temperature unit, which can be directly installed in the junction box of the industrial thermistor to form an integrated structure. As a new generation of temperature measuring instrument, it can be widely used in industrial sectors such as metallurgy, petroleum, chemical, power, light industry, textile, food, national defense, and scientific research.

2、 Functional principle

The thermal resistance sensor converts the measured temperature into an electrical signal. After 18 bit A/D acquisition, the temperature value is corrected using the multi segment line approximation method and displayed on the LCD.

3、 Main features

1. Adopting silicone rubber or epoxy resin sealing structure, it is shock resistant, moisture resistant, and suitable for installation and use in harsh on-site environments.

2. Installed on-site in the junction box of the thermal resistor, this 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. Widely applicable, it can form an integrated on-site installation structure with thermal resistance, and can also be installed as a functional module in detection equipment and instrument panels for use.

4、 Technical parameters

1. Input signal: Thermistor: Pt100

2. Accuracy level: 0.2% FS

3. Wiring method: resistance three wire system

4. Display mode: Five digit LCD display.

5. Power supply method: battery.

6. Explosion proof grade: ExdIIBT4

7. Allow load resistance: The load resistance can be selected and used within the range of 0-600 Ω.

8. Working environment: A: Environmental temperature: -10~+60 ℃

B: Power consumption:<10mW

C: Relative humidity: 5% -95%

D: Mechanical vibration f ≤ 50Hz, amplitude ≤ 0.15mm

E: No corrosive gas or similar environment

9. Environmental impact coefficient: δ ≤ 0.05%/℃

5、 Product Structure