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Features
- Extra Strong Support Post
- Large Active Bead Surface Area
- Precious Metals Used for All Components Mounted in Teflon Body
- Active and Reference Beads Matched by Size and Resistance
- Teflon Barrier Protects Active and Reference Beads
- Ultra Poison Resistant Active Bead
- Glass Coated Reference Bead
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Alphasense Pellistors are available in three housing sizes: A, D and the new F size for fixed installation applications. The innovative design of the Alphasense Pellistor range provides high quality, low power (only 190mW) and excellent poison resistance.
As with all other Alphasense sensors, computer controlled stabilisation racks to continuously monitor every sensor during initial conditioning ensures that only sensors operating within specification are allowed to be tested with our ATAV (Alphasense Test and Validation) system. Performance of very sensor is traceable via bar coding.
CH-A3 is a drop-in 20mm diameter replacement to existing products with improved stability and poison resistance;
CH-D3 is a unique miniature size - 11.5mm height, 15mm diameter, complementing the existing and fast-growing Alphasense D sensor family - with the same good stability and high poison resistance of the CH-A3.
All pellistors are housed in certified flameproof chambers.
Alphasense Pellistors include a matched pair of sensing and compensator pellistor beads, sealed in a 316 stainless steel housing with stainless steel flame arrester sinter.
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Catalytic DrägerSensors
Catalytic DrägerSensors for the detection of flammable gases and vapors utilise Pellistors which are based on the catalytic effect. Different sensor versions will suit even the most demanding industrial applications.
The DrägerSensor Ex PR M (PR = poison resistant) contains pellistors, which in the presence of catalytic poisons have a longer lifetime than conventional sensors.
The DrägerSensor Ex HT M contains also PR-pellistors, but additionally is approved to be used at temperatures up to 150 °C.
The DrägerSensor Ex LC M contains PR-pellistors, which by their special encapsulation and electronic amplification are suitable to monitor very low gas concentrations. The measuring range is 0...10% LEL.
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TGS6810, which can detect both methane and LP gas, has been developed for residential gas detection. Combining Figaro’s 35+ years of experience in catalyst material technology with its advanced micro fabrication technology, Figaro can produce the most advanced compact pellistor sensors whose durability, stability, quick response, and linear output make them ideal for detecting many combustible gases. As the sensor possesses an adsorbent inside its sensor cap, its cross sensitivity to alcohol is much smaller than traditional catalytic type sensors. In addition, TGS6810 is more durable against silicone compounds than the traditional catalytic type sensors.
* linear output
* compact size
* small sensitivity to alcohol
* sensitive to both methane and LP gas
* meets RoHS requirements
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The FCM6812 combustible gas sensor module is a new
unit which utilizes TGS6812, Figaro's catalytic pellistor
type gas sensor which features durability, stability, and
quick gas response. Calibrated under strictly controlled
environmental conditions at Figaro's factory, this module
provides analog output voltage proportional to hydrogen
gas concentration. FCM6812 is resin coated for
waterproofing and electrical insulation purposes, and also
is also capable of detecting sensor wire breakage. The
unit has a wide range of operating temperature from -10°
to +60°C.
Because the TGS6812 sensor can detect methane and
LP gas as well as hydrogen, this module is suitable for
gas leak detection in stationary fuel cells which use
hydrogen generated from combustible gases.
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MILLENNIUM CATALYTIC BEAD COMBUSTIBLE GAS DETECTOR
The Millennium Series is an innovative line of industrial gas detectors. Its microcontroller provides fast, accurate and continuous monitoring of gases in extreme environments.
Using a modular design, Millennium products can easily develop and adapt to changing requirements, regulations and available technologies. No need to redesign an entire system - simply replace one inexpensive "personality module" with another. Not only will the new "personality module" provide additional or enhanced functionality, it will easily integrate into your existing system.
The compact and explosion-proof Millennium features a power disconnect switch to simplify maintenance, a scrolling LED display for calibration and configuration and meter jacks for easy current loop monitoring.The internal circuitry is equally well designed with performance enhancing proprietary circuits and firmware.
The best designers, technologies and components make Net Safety products responsive, precise, and reliable in the most extreme conditions.
We provide products at a competitive price, with superior functionality and demonstrated effectiveness.
A full range of gases and custom configurations are available (ppm ranges etc.). Please consult our Sales Department.
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The Model S4000CH Intelligent Sensor is a microprocessor- based transmitter designed for use with General Monitors' catalytic bead sensors. The unit features one person calibration and can virtually self-calibrate by simply activating a magnetic switch and applying gas. It is designed to monitor combustible gases and vapors within the lower explosive limit (LEL) and provide status indication and alarm outputs. Complies with ANSI/ISA 12.13.01-2000 performance requirements for combustible gas detectors.
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ToxiBoss is a wall mounted gas sensor with interchangeable sensing heads to cover a wide variety of toxic gas situations. It is approved intrinsically safe for hydrogen (Group B) environments. Its Class I, Div 1 and 2, Group BCD approval means that it may be used in any hazardous gas environment, except acetylene. And, being intrinsically safe, it can be serviced in place without having to disconnect power or to undertake a costly declassification of the area. Also, the ToxiBoss can be installed in Div 2 applications without the added cost of sealed conduit.
Pick any one of the following sensing heads to suit your particular needs.
Gas Range Units Sensor model Head Designation
CO 0-500 ppm TB-CO/500 TBH-CO/500
NO2 0-10 ppm TB-NO2/500 TBH-NO2/500
H2S 0-50 ppm TB-H2S/500 TBH-H2S/500
H2 0-25 ppm TB-H2/500 TBH-H2/500
Cl2 0-10 ppm TB-CL2/500 TBH-CL2/500
SO2 0-10 ppm TB-SO2/500 TBH-SO2/500
O2 0-100 % TB-O2/100 TBH-O2/100
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The IGD MKIII flammable gas detector has been in service for many years gaining an enviable reputation for reliability and performance.
Developed originally for the off shore oil and gas industries using IGD's patented pellistor technology the MKIII today finds applications across many industries from drilling platfoms to boiler monitoring and everything in between.
Now ATEX approved the MKIII and available with a range of EEXd controllers, rack cards and 4-20mA output interfaces.
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The FX-SMT Intelligent Single Gas Detection Transmitter is loaded with industry features. These transmitters come standard with non-intrusive calibration which eliminates the need to declassify hazardous areas, a user adjustable "calibration reminder" message. Smart sensor replacement assemblies available for plug in operation.
This single gas transmitter can be configured for the detection of combustibles, AsH3, B2H6, Cl2, Cl02, CO, F2, HCl, HCN, HF, H2S, NH3, NO, NO2, O2, O3, PH3, SiH4 or SO2.
Features:
- Non-intrusive calibration via a magnetic wand eliminates the need to declassify hazardous areas
- User adjustable "calibration reminder" message
- Pre-calibrated sensors for quick plug-in operation
- Using an optional adapter, oxygen and toxic gas detectors can be mounted up to 25 ft. away from the transmitter; 200 ft. for combustible gases (no adapter required)
- Connect to Thermo Scientifics (formerly GasTech's) controllers, PLC (Programmable Logic Controllers) or DCS (Distributive Control System)
- Industry standard, 4 to 20 mA output
- Housed in a NEMA 4X, copper-free aluminum enclosure (weather & explosion-proof)
- User friendly - simple to operate
- Economical
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