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PDF RHT03 Data sheet ( Hoja de datos )

Número de pieza RHT03
Descripción Digital relative humidity & temperature sensor
Fabricantes MaxDetect 
Logotipo MaxDetect Logotipo



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No Preview Available ! RHT03 Hoja de datos, Descripción, Manual

Your specialist in innovating humidity & temperature sensors
Digital relative humidity & temperature sensor RHT03
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
*4 pins packaged and fully interchangeable
2. Description:
RHT03 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 RHT03 to be suited in all kinds of
harsh application occasions. Single-row packaged with four pins, making the connection very convenient.
3. Technical Specification:
Model
Power supply
Output signal
Sensing element
Operating range
Accuracy
Resolution or sensitivity
Repeatability
RHT03
3.3-6V DC
digital signal via MaxDetect 1-wire bus
Polymer humidity capacitor
humidity 0-100%RH;
temperature -40~80Celsius
humidity +-2%RH(Max +-5%RH); temperature +-0.5Celsius
humidity 0.1%RH;
temperature 0.1Celsius
humidity +-1%RH;
temperature +-0.2Celsius
-1-
MaxDetect Technology Co., Ltd.
-----------------------------------------
Thomas Liu (Sales Manager)
http://www.humiditycn.com

1 page




RHT03 pdf
Your specialist in innovating humidity & temperature sensors
Attention:
If signal from RHT03 is always high-voltage-level, it means RHT03 is not working properly, please check
the electrical connection status.
7. Electrical Characteristics:
Items
Power supply
Current supply
Collecting
period
Condition
DC
Measuring
Stand-by
Second
Min
3.3
1
40
Typical
5
Null
2
Max Unit
6V
1.5 mA
50 uA
Second
8. Attentions of application:
(1) Operating and storage conditions
We don't recommend the applying RH-range beyond the range stated in this specification. The RHT03 sensor
can recover after working in abnormal operating condition to calibrated status, but will accelerate sensors' aging.
(2) Attentions to chemical materials
Vapor from chemical materials may interfere RHT03's sensitive-elements and debase RHT03's sensitivity.
(3) Disposal when (1) & (2) happens
Step one: Keep the RHT03 sensor at condition of Temperature 50~60Celsius, humidity <10%RH for 2 hours;
Step two: After step one, keep the RHT03 sensor at condition of Temperature 20~30Celsius, humidity
>70%RH for 5 hours.
-5-
MaxDetect Technology Co., Ltd.
-----------------------------------------
Thomas Liu (Sales Manager)
http://www.humiditycn.com

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