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AST Humidity and Temperature Transducer, H(T)U(F)3500

H(T)U(F) 3500 Humidity & Temperature Transducer

Brand: American Sensor Technologies Inc
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AST Humidity and Temperature Transducer, H(T)U(F)3500
Based on the new humidity sensor HTU21P, HTU3500 Series are dedicated humidity and temperature plug and play transducer designed for OEM applications where reliable and accurate measurements are needed. 

Direct interface with a micro-controller is made possible with the modules humidity linear voltage and direct NTC outputs. The HTU3500 Series are designed for high volume and demanding applications where power consumption is critical. 

Optional PTFE filter/membrane (F) protects HTU3500 Series modules Analog humidity modules with temperature output against dust, water immersion as well as against contamination by particles. PTFE filter/membrane preserves a high response time. Several connectors are proposed. 5 Vdc or 3 Vdc power supply products are available.
Features
  • Full interchangeability with no calibration required in standard conditions
  • Instantaneous desaturation after long periods in saturation phase
  • Analog output
  • Demonstrated reliability and long term stability
  • Reliability not affected by repeated condensation
  • HU3500 - Analog humidity sensor only - can be proposed

View_Details

Specifications

Brand

Accuracy

  • ± 2 % Relative Humidity - Relative Humidity Accuracy (20 to 80 % Relative Humidity)

Approvals & Certifications

  • RoHS

Current

  • 1 mA Dc - Typical Current Consumption (HTU35Y3)
  • 1.2 mA Dc - Current Consumption (HTU35Y5)

Electrical Connectors

  • 24 to 30 AWG

Humidity

  • 0 to 100 % Relative Humidity

Hysteresis

  • ± 1 % Relative Humidity - Humidity Hysteresis

Input

  • -10 to 10 mA - Input Current on Any Pin

Operating Temperature

  • -40° to 85° C (-40° to 185° F)

Output

  • 1.49 V at 55 % Relative Humidity - Nominal Output (HTU35Y3)
  • 2.4-2.55 V at 55 % Relative Humidity - Nominal Output (HTU35Y5)

Output Impedence

  • 50 ohms

Power Requirement

  • -0.3 to 3.6 V - Vdd to GND (HTU3533 Products)
  • 1 mA - Sink Current Capability
  • -16 to 16 V - Vdd to GND for HTU3535 Products

Resistance

  • 10 kiloohms at 25° C (77° F) - Nominal Resistance

Response Time

  • 5 to 10 seconds (At 63 % of Signal) - Time Constant 33 to 75 % Relative Humidity at 1 m/sec Air Flow

Sensitivity

  • 16 mV/ % Relative Humidity - Humidity Average Sensitivity (HTU35Y3)
  • 26 mV/ % Relative Humidity - Humidity Average Sensitivity (HTU35Y5)

Sensor, Probe Type

  • NTC Thermistor

Storage Temperature

  • -40° to 125° C (-40° to 257° F)

Supply Voltage

  • 16 Vdc - Peak
  • 2.85-3.15 Vdc - Voltage Supply (HTU35Y3)
  • 3 Vdc - Typical (HTU35Y3)
  • 4.75-5.25 V - Voltage Supply (HTU35Y5)
  • 5 V - Voltage Supply (HTU35Y5)

Temperature Effect

  • -0.15 % Relative Humidity/°C - Temperature Coefficient

Tolerance

  • 1 % at 25° C (77° F) - Nominal Resistance Tolerance

Update Time

  • 10 seconds - Recovery Time after 150 Hours of Condensation
  • 150 milliseconds - Warm-Up Time (90 % of Signal)

  • Home appliance
  • Medical
  • Printers
  • Humidifier

Documentation

Data Sheets

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