COSA Xentaur XDT Data sheet
Dewpoint Transmitter
Series XDT
-148°F to + 68°F Dewpoint
COSA 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
• Transformer and switch
gear insulation gases
• Glove boxes
• Cryogenic gases
• Heat treating furnaces
• Industrial specialty
gases
• Many more
R
Class I Division 1 Groups A,B,C, & D;
Class II Groups E, F, & G
Manufactured with pride
in the USA
Features Xentaur HTF™ Al2O3 Technology
visit www.cosa-instrument.com for
Process Analyzers: Moisture in Gases (Portable, Loop-powered, HART Protocol, Relative Humidity)
Moisture in Liquids: H2 Analyzers, O2 Analyzers, Gas Chromatographs, Calorimeters and Other Speciality Instrumentation
GENERAL
The COSA 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 -148°F (-100°C).
APPLICATIONS
COSA 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, industrial specialty gases and many more.
ELECTRONICS
The transmitter electronics take full advantage of
state of the art microprocessor technology and offer
many advanced intelligent features. With optional dual
alarms, analog and digital outputs, the COSA dewpoint
transmitters can be used as indicators, alarm units or
controllers.
PROGRAMMABLE ALARM RELAYS OPTION
The two optional alarm relays can be independently
programmed to switch at any dewpoint with variable
hysteresis, which makes the transmitter ideally suited as an
energy saving controller for desiccant dryers in “dewpoint
demand” mode or safety cutoff in process control, high
power laser, etc. The status of the relays is shown on the
display with flashing HI or LO indicators while displaying
the dewpoint.
ANALOG AND DIGITAL OUTPUTS OPTIONS
Analog and digital outputs are isolated from the sensor.
The analog current or voltage output can be programmed
to span the full or a portion of the range and is linear to the
selected engineering units. The RS-232 interfaces into the
serial port of any PC or Mac, for a simple operation with
any standard communications program.
USER-FRIENDLY INTERFACE
The instrument is operated through a menu driven user
interface consisting of a custom LCD display with backlight,
and four push buttons.
ENGINEERING UNITS
The user can select from the following engineering units.
Dewpoint in °C or °F, ppmv, g H2O/m3, lbs H2O/ million scf.
PRESSURE CORRECT FUNCTION
Results are displayed at sensor pressure or by pushing
the Pressure Correct key at a user selectable alternate
pressure, such as the line pressure.
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
COSA’s laboratories.
SAME TRANSMITTER - MULTIPLE CONFIGURATIONS
Model XDT-OEM is a stand alone board
suitable for mounting in existing enclosures.
Connections are made through a pluggable
screw terminal block which allows cables to
leave the board vertically or horizontally.
The electronic board can be broken into
two parts and sandwiched to accommodate
space constraints.
Also Available: XDT in explosion proof enclosure, UL approved for use in Hazardous Locations Class I Division 1 Groups B, C & D;
Class II Groups E, F & G. Provides Instrinsically Safe output for use in Hazardous Locations Class I Division 1 Groups A, B, C & D;
Class II Groups E, F & G
Model XDT-PM houses the transmitter in
a panel mount industry standard DIN 43700
box, 3” (7.5cm) deep. Connections are
made through a pluggable screw terminal
block.
The panel mount model is available with
the push buttons on the outside of the front
panel (shown above) or with the push buttons hidden behind the front panel.
Model XDT-NEMA houses the transmitter
in a NEMA 4 (IP65) enclosure. Ideally suited
for industrial environments.
Can be ordered UL approved for use
in Hazardous Locations Class I Division 2
Groups A, B, C & D; Class II Groups F & G.
And optionally Providing Intrinsically Safe
output for use in Hazardous Locations Class
I Division 1 Groups A, B, C, & D; Class II
Groups E, F & G.
Loading...