Delphian Catalytic Bead Sensor
A wire is coated with either glass or ceramic. It is then coated again with a catalyst. The coil is electrically heated until it reaches a temperature where it will burn the combustible hydrocarbon of interest. The heat released through combustion raises the temperature of the wire, which increases the wire’s resistance. This increased resistance is measured and correlated to the amount of combustible hydrocarbon.
Availability: Commercially Available
| Manufacturer |
| Delphian Corporation |
| Product Name |
| Delphian Catalytic Bead Sensor |
| Detection Category |
| Chemical |
| Detection Principle |
| Sensors; |
| Detection Method |
| Catalytic Bead Sensor ; |
| Application |
| Gas Analysis; |
| Equipment Type |
| Sensor |
| Product Synopsis |
| A wire is coated with either glass or ceramic. It is then coated again with a catalyst. The coil is electrically heated until it reaches a temperature where it will burn the combustible hydrocarbon of interest. The heat released through combustion raises the temperature of the wire, which increases the wire’s resistance. This increased resistance is measured and correlated to the amount of combustible hydrocarbon. |
| Availability |
| Commercially Available |
| Technology Readiness Level (TRL) |
| 9 |
| User Feedback Sources |
| Indifferent/No user feedback |
| Dimensions |
| <1.73” wide (44 mm) |
| Weight |
| <1 lb. |
| Power Requirements |
| AC/DC Line Power; 24Vdc nominal, 21 to 29.4 Vdc |
| Transportability |
| Pocket Size |
| Ruggedness |
| None;Sensitive to weather extremes and poisoning |
| Operating Conditions |
| -55 to 100°C (-67 to 212°F) (When used with Micro 550) 10-95% RH |
| Consumables |
| <$1,000/year; Zero air and span gas |
| Calibration Schedule |
| Yes, every 30 days |
| Data Analysis Support Equipment |
| Catalytic Bead Tester, Calibration Adaptor for catalytic sensors, Reclamation Adaptor for catalytic CommonSensor, flame arrestor tool, Splash/Wind guard, transmitter, grounding kit |
| Shelf Life |
| <5 years; Operational life of 2-4 years |
| Unit Cost |
| $232.00 |
| Maintenance Cost |
| Catalytic stainless sensor $298; Minimal maintenance with sensors |
| Other Chemical Targets |
| This technology is used for combustible hydrocarbons. Part# 365-550-01, Part# 365-550-02 |
| Sample Introduction |
| Vapor/Gas |
| Sensitivity/Detection Limits |
| %LEL |
| Known Interferents/Inhibitors |
| Avoid halogenated compounds, metallo-organic compounds, or where silicone lubricants or sprays may be used. These can poison the sensor. Avoid extreme temperature and humidity environments |
| Start Up Time (From Cold Start To Sample Ready) |
| Power must be applied to the operating system for 24 hours before use |
| Response Time (Sample Application To Output) |
| <1 minute; 90% of final response within 30 seconds |
| Alarm Capability |
| Yes |
| Training Required |
| <1 week training |
| Manuals Available |
| Yes |
| Warranties |
| 2 year |
