Dew Point Meter Model HDT


Xentaur’s Dew Point Meter, Model HDT, is a rugged and unique loop powered dew point meter capable of both gas and liquid hydrocarbon phase measurements.

Features and Benefits

  • HTF™ Aluminum Oxide Sensor Technology
  • WITH XTR-100 SENSOR -100°C to +20°C (-148°F to +68°F) (dp)
  • Other Dewpoint Measurement Ranges Available
  • Rugged, Waterproof
  • Fast, Accurate
  • Loop-powered (2-wire) 5 to 28 VDC
  • Digital (HART Compliant) Output
  • Analog (4 to 20 mA) Output
  • Programmable Alarm Signal
  • Stainless Steel Housing
  • IP65 Rated Connector (IP66 or IP67 Optional)
  • Compact Design
  • Temperature Compensated Calibration
  • Suitable for installations at pressure or ambient


COSA's dew point meter is suitable for a variety of applications:

  • Moisture Analysis
    • Focus on winning applications
    • Pure gases in Air Separation Units (ASU) for N2, O2, H2, He
    • Natural Gas
    • Compressed Air – Instrument Air
    • Monitoring and control of Air Dryers
    • Industrial Gases (welding gases)
    • Glove Boxes / Clean room
    • Agriculture/Food Processing
    • Semiconductor
    • OEM Equipment Manufacturers
  • Reporting Water in Liquid Hydrocarbon Streams such as:
    • Hexane, Hexene, Benzene, Mixtures, Diesel and Complex Matrices
    • Oils and Lubricants
    • Solvents
    • Refrigerants


Using analyzer options, the measurement system is adaptable for every measurement challenge.

Xentaur HDT

The Model HDT Dew Point Meter uses a Xentaur HTF™ high capacitance aluminum oxide sensor with a measuring range of -100ºC to +20ºF or -60ºC to +20ºC. Customers can also request special ranges for special applications. The Xentaur dew point sensors provide a high degree of accuracy, speed, of response and stability unavailable from instruments using conventional aluminum oxide or polymer sensors.

HART-Compliant Dew Point Transmitter

The HDT is a HART compliant dewpoint transmitter, providing loop powered analog as well as a digital output. Housed in a 32mm dia. Stainless steel housing it has an overall length of 136mm including the Industrial Standard 9.4mm 4-pin connector.

Measurement Accuracy & Stability

The HDT transmitter uses a multipoint calibration table which provides temperature compensated dewpoint readings for temperatures from -10ºC to +70ºC with the option of going below -10ºC. Thus, the HDT provides accurate dewpoint measurements over its full range even under extreme temperature conditions, such as when installed outdoor or close to heat sources.

Request for Quote

Cosa Xentaur
4140 World Houston Parkway
Suite 180
Houston, TX 77032