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Cảm biến đo nhiệt độ và mật độ điểm sương (Dewpoint and Temperature Transmitter)

Model: HMT3308V0B101ECAE100G0CC2BAA1

The HMT338 is a top-of-the-line transmitter especially suitable for compressed air refrigerant dryer monitoring. The Vaisala HUMICAP® Humidity and Temperature Transmitter HMT330 series incorporates Vaisala’s 40 years of experience in industrial humidity measurement.The instrument offers a wide variety of different psychrometric units, including dew point (default), relative humidity, enthalpy, wet bulb temperature, absolute humidity, and mixing ratio.

With the optional ball valve, the HMT338 is ideal for pressurized processes where the probe needs to be inserted or removed while the process is running. The probe depth is adjustable.The HMT338 is optimized for dewpoints down to -10°C (+14°F). For drier (low dew point) measurements, such as in dessicant dryer systems, the Vaisala DRYCAP® Dewpoint and Temperature Transmitter DMT348 is recommended.

Analog outputs are preset at the factory to:

  • Channel 1: 4…20 mA = -20...+100°C (-4...+212°F) dew point
  • Channel 2: 4...20 mA = -40...+180°C (-40...+356°F) T

The package includes:

  • Pressure tight probe with 2 m (6.5 ft) cable
  • Calibration certificate (ISO9001 compliant, traceable to NIST)
  • ISO1/2" and NPT1/2" pressure fittings for probe installation into pipeline or pressurevessel
  • M20x1.5 cable gland and NPT1/2" conduit fitting included to facilitate wiring
  • User's Guide in English