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  • Telaire | CO2, Humidity & Dust Sensors
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  • Telaire HS20 | Relative Humidity Sensor

Telaire HS20 | Relative Humidity Sensor

    Humidity Sensors

Telaire Relative Humidity Sensor HS20

Telaire HS20 is a bulk-resistance type of Relative Humidity (RH) Sensor providing a variable impedance value in response to the adsorbed water within the sensor’s proprietary thin-film polymer. Applied to an interdigitated electrode, the polymer’s chemical functional groups disassociate into ionic groups in the presence of water, increasing the sensor’s electrical conductivity. Excited by a low voltage alternating current, the sensor’s resulting impedance is measured via supporting circuitry.

 

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  • Applications
  • Features
  • Specifications
  • Product Documents
  • Part Nos.

Applications

  • HVAC controls
  • White goods
  • Handheld instruments
  • Medical devices
  • Wireless transmitters
  • Asset monitoring
  • Data loggers
  • Consumer goods
  • Automotive climate control
  • Agriculture and horticulture
  • Environmental chambers
  • Enthalpy measurement

Features

  • Low cost
  • Low power
  • Inverse exponential humidity response curve
  • Fast response time
  • Exceptional linearity
  • Low hysteresis
  • Excellent interchangeability
  • Simple signal conditioning circuitry
  • Wide operating range
  • Small size

Specifications

General Min Typical Max Condition
Storage Temperature 0°C   50°C  
Storage Humidity 20%RH   90%RH Without condensation
Operating Humidity 30%RH   90%RH Do not allow dewdrops to form.
Operating Temperature 0°C   50°C  
Power Rating AC 1V 50Hz - 1KHz
Nominal Impedance Value   67.3 kΩ   25°C, 50%RH
Tolerance on Impedance Value 53.9 kΩ   70.7 kΩ  

 

Reliability Criteria Condition
Dry Heat Storage <±5 %RH 85°C, 1000 hours
Cold Storage <±5 %RH -40°C, 1000 hours
Damp Heat Storage <±5 %RH 65 ±5°C, 90%RH, 1000 hours
Heat Cycle Test <±5 %RH -40°C~85°C, 100 cycles
Low Humidity Storage <±5 %RH 20°C, 20%RH, 1000 hours
Dry Heat Operation <±5 %RH 80°C, 1000 hours, AC 1V, 1KHz

 

Product Documents

English

Telaire HS20 | Relative Humidity Sensor - Product Datasheet

  • Download

English

Delivering Better Indoor Air Quality and Energy Efficiency - CO2, Humidity and Temperature Products | Telaire - Brochure

  • Download

Air Quality Sensors - OEM Sensor Components for Air Quality and Environmental Control | Telaire - Brochure

  • Download

Amphenol Advanced Sensors | Connecting Your World Through Sensing Innovations - OEM Product Catalog

  • Download

Part Nos.

  • HS20

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At Amphenol-ASTG, we make Quality, Safety and Environmental Protection a top priority. We believe that making sustainable choices in the way we conduct our business creates short-term and long-term value for our stakeholders. We do not create long-term value by merely complying with regulations, but we go beyond compliance to find ways to green our operations and our products to ensure continuity of the material and human resources that we need to operate the business.

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