Ventilation Control Products Sweden AB

Duct Humidity & Temperature Transmitters – HDTT-Series

Description

The HDTT-Series Duct Humidity & Temperature Transmitters are designed to measure and monitor relative humidity and temperature in duct systems. These transmitters convert the measurements into standard signals of 0-10 Vdc or 4-20 mA, ensuring compatibility with modern control systems.

Available with or without an LCD display, the HDTT series offers precision and reliability for HVAC applications. The units include a robust, impact-resistant plastic enclosure with quick-locking screws and a mounting flange for easy installation.

  • Features

    • Combined Measurements: Relative humidity and temperature in a single unit.
    • Output Options:
      • HDTT 010: 2 x 0-10 Vdc outputs.
      • HDTT 420: 2 x 4-20 mA outputs.
      • Optional Passive Temperature Output: PT100, PT1000, Nickel, NTC 10K, NTC 1.8K, NTC 20K, PTC, and more.
    • Display Options: Versions with or without LCD display showing real-time humidity and temperature.
    • Measurement Ranges:
      • Humidity: 0-100% r.H.
      • Temperature: 4 selectable ranges via PCB jumpers:
        • -35°C to +35°C.
        • -35°C to +75°C.
        • 0°C to +50°C.
        • 0°C to +80°C.
      • Accuracy:
        • Humidity: ±3% (20-80% r.H.) at +20°C, otherwise ±5%.
        • Temperature: ±0.8 Kelvin at +20°C.
      • Long-Term Stability: Minimal drift and small hysteresis for reliable measurements over time.
      • Construction:
        • Terminal box enclosure made of impact-resistant plastic.
        • Quick-locking screws for easy access.
        • Mounting flange included for adjustable penetration depth.

  • Key Advantages

    • Adjustable Settings: Fine adjustment and user-configurable temperature ranges via jumpers.
    • Flexible Installation: Includes a mounting flange for easy setup in duct systems.
    • Durable Design: Impact-resistant enclosure for long-term use in non-aggressive, dust-free environments.

  • Applications

    • HVAC systems in refrigeration, air conditioning, and ventilation.
    • Clean room technology.
    • Duct monitoring in commercial and industrial environments.

  • Models

    • HDTT 010:
      • Outputs: 2 x 0-10 Vdc.
    • HDTT 420:
      • Outputs: 2 x 4-20 mA.
    • HDTT 010 D:
      • Outputs: 2 x 0-10 Vdc.
      • LCD display.
    • HDTT 420 D:
      • Outputs: 2 x 4-20 mA.
      • LCD display.

Download

Duct Humidity & Temperature Transmitters HDTT-series.pdf

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Company
  • Ventilation Control Products Sweden AB
  • Brodalsvägen 7 Hus z, 433 38 Partille Sweden
Contact

Ventilation Control Products Sweden AB

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