Dräger Catalytic EX Sensors

Designed for use with the Dräger X-AM 7000. A platinum coil is embedded in a ceramic bead. A current flows through the coil heating the pellistor. If the pellistor has the proper catalytic material, then in the presence of flammable gas its temperature will increase. This results in an increased resistance, which can be evaluated electronically. This uses a second pellistor which does not react with the gas of interest. The two pellistors are combined in a Wheatstone bridge. This second pellistor eliminates changes in the ambient temperature.

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Availability: Commercially Available

+1 800 437 2437
7256 South Sam Houston Parkway, Suite 100
Houston, TX 77085
USA
+49 451 8824
Moislinger Allee 53-59
23562 Lübeck
Germany
www.draeger.com
Manufacturer
Dräger Safety, Inc.
Product Name
Dräger Catalytic EX Sensors
Detection Category
Chemical
Detection Principle
Sensors;
Detection Method
Catalytic Bead Sensor; Pellistor;
Application
Gas Analysis;
Equipment Type
Sensor
Product Synopsis
Designed for use with the Dräger X-AM 7000. A platinum coil is embedded in a ceramic bead. A current flows through the coil heating the pellistor. If the pellistor has the proper catalytic material, then in the presence of flammable gas its temperature will increase. This results in an increased resistance, which can be evaluated electronically. This uses a second pellistor which does not react with the gas of interest. The two pellistors are combined in a Wheatstone bridge. This second pellistor eliminates changes in the ambient temperature.
Availability
Commercially Available
Technology Readiness Level (TRL)
9
User Feedback Sources
Indifferent/No user feedback
Dimensions
3.3 x 2.5 x 1.0 in (83.8 x 63.5 x 15.4 mm)
Weight
<1 lb.
Power Requirements
Lithium Battery; Rechargeable
Transportability
Pocket Size
Ruggedness
Extreme Temperatures/Humidity
Operating Conditions
-20 to 55°C (–4 to 122°F); 10 to 95%RH
Solvents/Reagents
None
Calibration Schedule
Yes
Available Accessories
None
Data Analysis Support Equipment
Various Dräger X-am devices specific models vary with specific sensors so check data sheet for compatibility
Communications Interface
IBM compatible PC: Windows XP, and Windows 7 1 available USB port with appropriate adapters, or combination
Shelf Life
<5 years; 2 years
Unit Cost
$406.00
Other Chemical Targets
Acetone, ammonia, benzene, 1,3-butadiene, n-butane, n-butyl alcohol, 2-butanone, n-butyl acetate, cyclohexane, cyclopentane, diethyl ether, acetic acid, ethane, ethyl alcohol, ethane, ethene, ethine, ethyl acetate, n-heptane, n-hexane, carbon monoxide, methane, methyl alcohol, n-nonane, n-octane, n-pentane, propane, n-propyl alcohol, i-propyl alcohol, propene, 1,2-propylene oxide, 1,2-propylenoxid, toluene, hydrogen, and xylenes
Adaptability
No
Sample Introduction
Vapor/Gas
Sensitivity/Detection Limits
%LEL
Known Interferents/Inhibitors
Several and varied, depending on the sensor. Interferents are listed in specific sensor data sheets, provided with sensor
Start Up Time (From Cold Start To Sample Ready)
Up to 18 hours
Response Time (Sample Application To Output)
<1 minute
Alarm Capability
Audible, Visual and vibrational
Software Control
Communication accessories: Dräger CC-Vision/Pac-Vision Printer Set for Dräger Bump Test Station
Other Operational Parameters
Dräger Bump Test Station
Training Required
<1 week training
Training Available
Yes
Manuals Available
Yes
Reachback Service
No
Warranties
2 years
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