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Número de pieza | RHT02 | |
Descripción | Digital relative humidity & temperature sensor | |
Fabricantes | MaxDetect | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de RHT02 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
No Preview Available ! Your specialist in innovating humidity & temperature sensors
Digital relative humidity & temperature sensor RHT02
1. Feature & Application:
*High precision
*Capacitive type
*Full range temperature compensated
*Relative humidity and temperature measurement
*Calibrated digital signal
*Outstanding long-term stability
*Extra components not needed
*Long transmission distance, up to 100 meters
*Low power consumption
2. Description:
RHT02 output calibrated digital signal. It applys exclusive digital-signal-collecting-technique and humidity
sensing technology, assuring its reliability and stability. Its sensing elements is connected with 8-bit single-chip
computer.
Every sensor of this model is temperature compensated and calibrated in accurate calibration chamber and the
calibration-coefficient is saved in type of programme in OTP memory, when the sensor is detecting, it will cite
coefficient from memory.
Small size & low consumption & long transmission distance(100m) enable RHT02 to be suited in all kinds of
harsh application occasions.
3. Technical Specification:
Model
Power supply
Output signal
Sensing element
Operating range
Accuracy
Resolution or sensitivity
RHT02
3.3-5.5V DC
digital signal via MaxDetect 1-wire bus
Polymer humidity capacitor
humidity 0-100%RH;
temperature -40~80Celsius
humidity +-3%RH(Max +-5%RH); temperature +-0.5Celsius
humidity 0.1%RH;
temperature 0.1Celsius
-1-
MaxDetect Technology Co., Ltd.
-----------------------------------------
Thomas Liu (Sales Manager)
Email: [email protected] , [email protected]
http://www.humiditycn.com
1 page Your specialist in innovating humidity & temperature sensors
2). Step 2: RHT02 send data to MCU
When RHT02 is sending data to MCU, every bit's transmission begin with low-voltage-level that last 50us, the
following high-voltage-level signal's length decide the bit is "1" or "0". See below figures:
Attention:
If signal from RHT02 is always high-voltage-level, it means RHT02 is not working properly, please check
the electrical connection status.
7. Electrical Characteristics:
-5-
MaxDetect Technology Co., Ltd.
-----------------------------------------
Thomas Liu (Sales Manager)
Email: [email protected] , [email protected]
http://www.humiditycn.com
5 Page |
Páginas | Total 6 Páginas | |
PDF Descargar | [ Datasheet RHT02.PDF ] |
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