PRODUCT DATASHEET Series XDT™ Dewpoint Transmitter -100°C to + 20°C Dewpoint Applications • Monitoring and control of air dryers • Plastic dryers • Welding gases • Laser gases • Petrochemical feedstock gases • Natural gas processing, transportation and distribution Clean rooms Transformer and switch gear insulation gases Glove boxes Cryogenic gases Heat treating furnaces I

General The digital dewpoint transmitters are designed as compact, simple and reliable instruments, which will continually monitor air dryer performance, compressed air quality and dry gas moisture, from ambient dewpoint levels to as low as -100°C (-148°C). Applications Dewpoint transmitters are used wherever the dewpoint in a gas is critical. Applications include: monitoring and control of air dryers, plastic dryers, welding and laser gases, petrochemical feedstock gases, natural gas, clean rooms, glove boxes, transformer and switch gear insulation gases, cryogenic gases, heat treating furnaces,...

SpanCheck in the Field This field calibration procedure is fully automated and the user is prompted through a simple one minute procedure, which requires no additional equipment. Error Indication The instrument has indication for sensor open, short or electronic system failure, which can activate any of the alarm relays. NIST / NPL Traceability Option Certificates for NIST and NPL traceability are available upon request. Instruments can be recertified periodically at Xentaur’s laboratories. Same Transmitter – Multiple Configurations Model XDT-OEM™ is a stand alone board suitable for mounting...

The HTF™ Aluminum Oxide sensor is the product of years of intensive research and has been thoroughly field proven. HTF technology offers significant performance advantages over all other aluminum oxide moisture sensors. High Capacitance Response Due to a hyper-thin film and a special pore geometry, sensors have a capacitance change over their full range, several orders of magnitude larger than that of conventional aluminum oxide sensors. Additionally, this change is quasi linear and its sensitivity to temperature is negligible. The advantages of a linear high capacitance response are: better...

TECHNICAL SPECIFICATIONS HTF Sensors Sensor element: Type Hyper Thin Film high capacitance Al2O3 Dewpoint range Response time* For a step change from -40°C to -60°C: 63% in 90 seconds 90% in 450 seconds Temperature range Sample Flow range (linear velocity at 1 atm) Storage temperature Sensor saturates at dewpoint above +20°C (+68°F) Fitting: Pressure operating range Mechanical connections 14mm x 1.25mm threads, and 3/4”-16 threads (other threads available) Electrical connections Sensor cable Coaxial cable (75Ω with maximum capacitance of 50 pF/m). Maximum cable length: 914 m (3000 ft) * These...

TECHNICAL SPECIFICATIONS XDT Series Transmitter: Sensor type Input Resolution L CD with backlight, 3.5 digits and custom legends for units and mode, audio alert Engineering units 4 push buttons, all settings stored in EEPROM Output options 4 -20mA, 0-24mA or voltage outputs, linear to selected engineering units, programmable span and range, 0.1°C dewpoint resolution. RS-232 , baud rate 9600, resolution 0.1°C dewpoint Sensor is isolated from the power supply, analog output and RS-232 Alarm relays option Two programmable alarm relays with programmable variable hysteresis, rated at 10A @240V. Failure...

Dimensions of Element and Fitting (other threads are available) Dimensions XDT-OEM Sample cells and complete sampling systems available. For more information, refer to website. Dimensions XDT-NEMA Dimensions XDT-PM

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