Wall-mounted temperature and humidity sensor

First, use and performance Today's wall-mounted temperature and humidity sensors, there are many kinds of sensor products we all know, they are mainly used in the industry, we rarely touch these in our daily lives. At present, the performance of the wall-mounted temperature and humidity sensor has reached the first-class level at home and abroad, and it is one of the most ideal products for the relative humidity environment test. The unique advantages of this product are: using a combination of multiple humidity sensors to ensure that the full-scale analog output linearity, and can display the temperature and humidity values ​​at the same time, high full-scale accuracy, stability, consistency, long service life, Long-distance transmission without distortion, fast response, humidity testing with temperature compensation, temperature and humidity signal sampling and so on.

This product is suitable for the field of temperature, humidity, and measurement and control in industry, agriculture, medical treatment and scientific research, and meets the requirements of customers. The use of this product under special conditions such as high and low humidity, high and low temperature, can show unique superior performance.

Second, the main data and technical indicators 1, the supply voltage: AC220V

2, analog output analog output: 4 ─ 20mA, or 0-10mA, or 0-5V, or 0-10V,

232 interface (provides corresponding upper computer display printing software, see the upper computer operating instructions)

Relative humidity: 0-100% RH

Temperature: 0-50°C, or 0-100°C, or -20°C-60°C (Special range separately)

3, accuracy level relative humidity range 5%RH-98%RH

Compensation temperature range 40°C±2%RH 50°C±3%RH 80°C±5%RH

temperature:

10°C-40°C±0.3°C,0°C-50°C±0.5°C,0°C-80°C

±0.5°C (using thermal resistance)

-20°C-60°C, ±1°C (with thermal resistance) ±0.5°C (with platinum resistance)

4, humidity sensor using temperature range -40 °C -100 °C

Voltage output type: load resistance 1K or more.

Current output type: constant current load 100Ω-500Ω (4mA-20mA)

100Ω-1000Ω (0mA-10mA)

5, stability:

Moisture measurement under normal and low temperature conditions for three years drift 1-2% RH. Humidity measurement drift is 1% RH per year at high temperature and high humidity (above 40°C and 80% RH). Humidity sensor does not have a failure life of 5-8 years.

6, long-distance transmission characteristics:

Current output type integrated sensor transmitter can realize direct current signal remote transmission, and the distance can reach over 1000 meters. Two-piece (that is, sensor sensor and transmitter separate into two bodies) voltage output sensor, the sensor and the transmitter connection can achieve long-distance transmission. Use ordinary wire connections within 50 meters of the connection. For connection of more than 50 meters, please use a single shielded cable connection (single shield per line).

7. Response time: 1 second of humidity, 10 seconds to 2 minutes of dehumidification, 5 seconds of warming, and 2 minutes of cooling.

8, power consumption: <0.5W

9, type: wall type (plastic shell)

Dimensions: 160mm (length) × 125mm (width) × 55mm (height)

Third, the use of the DB232 plug both ends of the computer's COM port and the instrument's DB232 port can be. (See the upper computer instructions for details)

Fourth, note:

1. The sensor can only be used in a temperature range of -40°C to 150°C.

2. The sensor is not suitable for long-term condensation and severe chemical pollution. When this sensor is not in use, it should be stored in a dry place. When the sensor is dirty, it can be cleaned with aviation gasoline.