Product Introduction:

1. Adopting high-precision A/D conversion chip, low-noise voltage reference, and new microcontroller control software core technology.

2. Design and manufacture based on the classic principle of the relationship between air humidity and evaporation. According to the on-site environment, the wind speed and atmospheric pressure values can be set using the touch sensitive keyboard on the instrument panelAfter internal computer processing, high-precision relative humidity values, humidity temperature values, and dry temperature values are directly provided.

3. The actual accuracy of the instrument can be accepted.

4. Randomly provide a measurement sensor made of two precision paired Pt100 platinum resistors, with high accuracy and long service life.

5. Equipped with a separate third channel temperature measurement control and capable of running for a set period of time. The instrument is suitable for fully automatic control of high-precision constant temperature and humidity chambers and other objects. It can also be used as a calibration benchmark for manufacturers of capacitive and polymer material humidity sensors.

Main technical parameters

1. Temperature measurement error: ≤± 0.3% F.S+1d

2. Humidity measurement error: ≤± 0.5% F.S+1d (when the humidity temperature is between 20-90 ℃) ≤± 1% F.S+1d (when the humidity temperature is between 15-100 ℃)

3. Independent loop temperature measurement error: ≤± 1% F.S ± 1 ℃

4. Humidity measurement range: 0-100.0% RH

5. Temperature measurement range: -100.0~200.0 ℃;

6. Equipped with sensors: Two paired Pt100 platinum resistors are used for dry and wet temperature measurement. Use another platinum resistor for the independent circuit

7. Running time setting range: 0-9999 minutes

8. Atmospheric pressure setting range: 64-130kPa

9. Wind speed coefficient setting range A: A=0: wind speed 0.4m/s; A=1: Wind speed 0.8m/s; A=2: Wind speed of 2.5m/s; A=3: Wind speed (vertical) 0.6m/s

10. Dry and wet temperature deviation range: -100.0 to 100.0

11. Dry temperature and humidity control method: fuzzy control

12. Independent circuit control mode: Two position type

13. Independent circuit hysteresis setting range: 0.2-20.0 ℃

14. Output driving solid-state relay signal: current of about 15mA, no-load voltage not less than 12V

15. Output contact capacity: AC250V 3A (resistive load)

16. Instrument appearance (height x width x depth): 96 x 96 x 130 (mm)

Network optimization materials:

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