B + B Thermo-Technik HYT939 OPERATION MANUAL
OPERATION MANUAL
Digital Humidity-Temperature Module HYT939
with I²C-Interface
DescriptionDescription
Features
• Dew resistant
• Temperature compensated
• I²C interface
• Low hysteresis
Technical data
Humidity measurement
Measuring range humidity 0 ... 100 % RH
Accuracy humidity ± 1,8 % RH at +23 °C
(0 % RH to 90 % RH)
Reproducibility 0 .. 10 % RH (0 ... 50 ° C)
± 0,2 % RH
Hysteresis <± 1 % RH
Resolution Humidity 0,02 % RH
Linearity < ± 1 % RH
Tk residual error (50 % RH) 0,05 % RH / K (0 ... 60 °C)
Long-term drift < 0,5 % RH / a
Meassuring principle Capacitive polymer humidity
sensor
Temperature measurement
Measuring range temperature - 40 ... +125 °C
Accuracy temperature ± 0,2 K (0 °C to +60 °C)
Reproducibility ± 0,1 K
Resolution Temperature 0,015 °C
Long-term drift < 0,05 K / a
Meassuring principle PTAT (integrated)
General
Dimensions (∅ x H) 13 mm x 32 mm
Operating voltage 2,7 ... 5,5 V
Current consumption
(nominal)
Current consumption (max.) 850 µA
Power consumption (sleep) < 1 µA
Operating temperature -40 °C ... 125 °C
Humidity range 0 ... 100 % RH
Digital interface I2C, s. Art. No. page 1
Material Polyamid, black
Water absorption 3...4%
Connection Binder plug 5 ways Series 711
Storage temperature -20°C...+50°C
CE-conformance 2014/30/EU
Electromagnetic conductivity EN 61326-1:2013
Environmental data RoHS-complient
< 22 µA at 1 Hz update rate
• Compensated linearity error
• Low temperature drift
• Easily replaceable
Applications
• Mechanical engineering
• Environment technology
• Plant engineering
• Medical devices engineering
• Dryer systems
• Building automation
• in connection with internal bus systems
Description
Accurately calibrated, digital humidity-temperature module with I²C
interface. The sensor is dew resistant, temperature compensated,
shows a very low hyteresis, negligible long term drift and linearity
errors. Up to 112 addresses on the same bus line. It is mechanically
robust, easy exchangeable and chemically resistant. The module
features a high quality micro system on ceramic substrate using a
polymer capacitive humidity sensor. The TO-39 housing with steel
mesh lter is suitable among others for the use in medical devices and
dryer systems.
Attention
Please avoid extreme mechanical and inappropriate exposure.
The device/product is not suitable for potential explosive areas and
medical-technical applications.
Article numbers
Humidity/temperature probe with I²C-Interface
Address 0x28 0626 0110-05
Address 0x29 0626 0110-10
Address 0x2A 0626 0110-11
You can nd the detailed datasheet on our homepage: Service&Support -> Downloads -> Data sheet
HYT939
Technical changes reserved
0141 0316-198 16.06.2016
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon +49 771 83160 | Fax +49 771 831650 | info@bb-sensors.com | bb-sensors.com
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OPERATION MANUAL
Digital Humidity-Temperature Module HYT939
with I²C-Interface
Accuracy relative humidity measurement
Accuracy temperature measurement
Plug assignment
Binder M9 x 0.5 socket, 5-pole, 711 series, gold contacts
Humidity scope
Technical changes reserved
0141 0316-198 16.06.2016
Accessories
Article Article number
RJ12 connectioncable 2 m 0409 3004
RJ12 connectioncable 5 m 0409 3004-01
RJ12 connectioncable 10 m 0409 3004-06
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon +49 771 83160 | Fax +49 771 831650 | info@bb-sensors.com | bb-sensors.com
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