Datasheet

DATA SHEET
Technical changes reserved
---------
DescriptionDescription
0141 0316-111 08/2013
Capacitve humidity sensor
KFS140-D
Technical Data
Capacitive Humidity Sensor KFS140-D
Measuring principle Capacitive polymer humidity sensor
Humidity range 0 ... 100 % relative humidity
max. Dew point +85 °C
Temperature range -30 ... +150 °C
Capacitance 150 pF ± 50 pF
(at 23 °C and 30 % RH)
Rate of rise 0.25 pF / % RH
Tan  < 0.01
Hysteresis < 1.5 % RH
Response time < 12 sec.
Frequence range 1 ... 100 kHz
max. evaluation voltage < 12 Vpp ~
Signal waveform AC voltage
(without DC-component)
Dimensions 3.81 x 5.0 x 0.4 mm
Connection PTFE isolated wires
Ø 0.4 x 18 mm, RM 2.54mm
Order No. KFS140-D
Characteristic features
• Economic model
• Mechanically robust
• Good Linearity
• Dew resistant
• Alcohol resistant
• Low Hysteresis
• Temperature shock resistant
• Compact size
• RoHS conform
Areas of application
• HVAC (Heating, Ventilation and Air conditioning)
• Climate monitoring
• Ecological studies and ecological measurement systems
• Meteorology
Features
The KFS 140-D is a capacitive humidity sensor with very good perfor-
mance data. Other highlighting features are its wide range of applica-
tions, low hysteresis and linear characteristics. The high performance
polymer used in the sensor is resistant against dew formation and
many chemical effects and also guarantees an outstanding long-term
stability.
The sensor has a favourable price performance ratio and is also
suitable for applications in the eld of ventilation and air-conditioning
systems. Due to its optimum performance, the sensor is also ideally
suitable for meticulous jobs in industrial measuring systems.
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com
1 / 1