KFS-140-D Humidity Element

Description

The KFS 140-D is a capacitive humidity sensor with very good performance data.  Other key features are its wide range of applications, low hysteresis and linear characteristics.  The high performance polymer used in the sensor is resistant against dew formation and many chemical effects while also guaranteeing outstanding long-term stability.

The sensor has a favorable price-to-performance ratio and is also suitable for applications in the field of ventilation and air-conditioning systems.  Its excellent performance makes it well-suited for meticulous jobs in industrial measurement systems.

Features

  • Economic humidity sensor model
  • Robust
  • Good linearity
  • Dew resistant
  • Alcohol resistant
  • Low hysteresis
  • Temperature shock resistant

Technical Features

ParameterValue
Measuring Principle: Capacitive polymer humidity sensor
Humidity Range: 0-100% relative humidity
Max. Dew Point: +85°C
Temperature Range: -30 to +150°C
Capacitance: 150pF ±50pF (at 23°C and 30%RH)
Rate of Rise: 0.25 pF/ %RH
Tan ?: <0.01
Hysteresis: <1.5% rh="" --1="" 5="" --="">
Response Time: <12 sec="" --12--="">
Frequency Range: 1-100 kHz
Max Evaluation Voltage: <12 vpp="" --12--="">
Signal Waveform: AC voltage (without DC-component)
Dimensions: 3.81 X 5.0 X0.4 mm
Connection: PTFE isolated Cu/Ag-wires
Meets RoHS conformity: Yes

Applications

  • HVAC
  • Climate Monitoring
  • Ecological studies and environmental monitoring systems
  • Meteorology

Data Sheet

Application Notes