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Electrochemical Sensors
Design does matter: a bigger sensor means bigger electrodes and more electrolyte, hence
faster response
higher accuracy
more stability
longer life
The smart DraegerSensor with embedded micro-chip and temperature element supports sensor recognition, numerous selftest functions, remote calibration and signal compensation over the entire temperature range of typically -40 to +65 ºC.
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Figaro Engineering Inc. specializes in the research, development, manufacturing and marketing company of gas sensors and gas detection equipment.
In 1968, Figaro Engineering Inc. became the first company in the world to develop and commercialize semiconductor gas sensors. Globally, major concerns in the fields of gas detection, air quality control, HVAC appliances, and the automotive industry have relied on Figaro Engineering Inc. for gas sensing products.
Based on its extensive and broad-based experience in developing and manufacturing gas sensors, Figaro continues to expand its expertise into new areas of gas detection.
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GfG's fixed gas detection systems are available as easy to operate single point units or as larger systems with several hundred transmitters. These multiple point systems consist of controllers and transmitters that communicate with each other. The transmitter changes the measured gas concentration to an electrical signal which is transfered to the controller. The controller shows the gas concentration in a display and immediately activates alarming devices in case of a gas leak. Advanced features such as data logging or online data transmission allow the user to easily monitor ambient changes in the environment. The Stand Alone unit is a combination of both transmitter and controller.
The transmitter's sensor is the "sense of smell" of a fixed gas detection system. The sensor is located in a metal sensor enclosure which is attached to the transmitter and converts the gas concentration into an electric signal. Electronics inside the transmitter changes this electrical signal for interference free transfer to the controller. The transmitter and the controller can be installed several 100 meters apart from each other.
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Flamgard Plus is a Flameproof (Exd) flammable gas detector, which uses poison-resistant pellistors to detect explosive levels of hydrocarbons, hydrogen and other flammable gases and vapours, including aviation fuel and leaded petrol vapours.
Features:
Non-intrusive calibration
* Calibration can be performed locally without the need for hot work permits
* Local display and magnetic key enable calibration without opening the junction box
Flexible output options
* A 4-20mA signal is provided
* Optional alarm and fault relays are available to drive local alarm devices.
Rugged and reliable
* Constructed using highly durable marine-grade alloy with a tough polyester coating
* Ingress protection to IP65 as standard, IP66 with accessory
* Uses long-life poison resistant pellistors, which are resistant to halogens, silicones and lead.
Other toxic gas detectors in the Crowcon range include:
* Xgard - available in Ex d and i.s. versions
* TXgardIS+ - intrinsically safe toxic gas detector with display
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Gas detectors E2606 are intended for air quality monitoring - control of toxic gas and oxygen concentration and prevention of gas leaks in confined spaces.
Depending on version the gas detector E2606 uses either advanced metal-oxide semiconductor or an electrochemical gas sensor. Concentration of toxic (carbon monoxide, VOC, freons, ammonia,H2S etc) gases or oxygen deficiency can be measured.
- Measuring range 0..5 %vol.
- Temperature range -20..+50 °C
- Output relay 230 VAC, 8A
- Supply 230 VAC or 24 VDC
- Diffusion, flow-through and remote sensor versions
- Visual and audible alarms, adjustable output relay
- Linearized analog output 4-20 mA
- RS485 Modbus RTU interface option for direct Fieldbus networking
- Wall-mount
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The Model TS4000H Intelligent Toxic Gas Detector continuously monitors toxic gases in the ppm range or oxygen deficiency, delivering highly accurate detection and protection. The unit features one person calibration and can virtually self-calibrate by simply activating a magnetic switch and applying gas. It provides status indication and alarm outputs.
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J. Dittrich Elektronic gas measuring systems for toxic gases and vapors determine the concentration of toxic gases and vapors in the air mixture at an ambient temperature of -10 to +50° C.
Specific electrochemical sensors measure ammonia (NH3), chlorine (Cl2), carbon monoxide (CO), oxygen (O2), hydrogen sulphide (H2S), nitrogen dioxide (NO2) and nitrogen monoxide (NO) in the ppm range.
The sensors are calibrated with the help of the respective test gas using a potentiometer; there is no or only negligible cross-sensitivity to other substances.
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MSA offers a complete range of detectors that permanently monitor for dangerous levels of toxic gases to protect personnel and the environment.
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MILLENNIUM II BASIC "SMART" GAS DETECTOR
Net Safety's next generation detector, the Millennium II BASIC is a robust, reliable, and low-cost safety solution delivering highly accurate detection and protection. Our state-of-the-art "SMART" (Self Monitoring Analysis and Reporting Technology) sensors provide a cost-effective detector solution that includes all the features you demand with complete ease-of-use and operation.
A full range of Combustible (Infrared & Catalytic Bead) and Toxic (Solid State & Electrochemical) sensors are available, all are completely interchangeable with the Millennium II and Millennium II BASIC transmitters.
* SMART Technology
* Low Cost Solution
* Market Leading Sensor Warranties
* Global Certifications - Class1 Div1 Explosion proof
* Analog, Relay, RS485 Modbus RTU, or HART communications available
* Low Power Consumption, Widest Input Power Range
* Infrared sensor technology utilizing a dual beam design with no "mirrors" that may become contaminated ("fogged up") or misaligned
* Non-intrusive, One Man Calibrations
* Visual LED Indication (full display available on Millennium II Dual Channel)
* Long Range (+2000ft.) Sensor Separation
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Dräger's product range covers a wide variety of types: electrochemical, catalytical or infra-red IR sensor technology point or open path detection intrinsically safe or explosion proof analog 4 to 20 mA, digital HART or RS 485 signal output with or without local display with or without on-board relays low budget or high end equipment Your local representative will gladly help you determine the right product for your application.
Dräger Polytron 7000
Modular design – highly flexible: The universal transmitter Dräger Polytron 7000 measures toxic gases and oxygen and can be optimally adjusted to the most different applications.
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The Tocsin 103 series of gas detectors are designed for cost effective safe area gas detection solutions. They incorporate micro processor technology to give a stable 4-20mA process signal output or digital addressable output. The addressable output option allows detectors to be networked on a single cable run giving dramatic reduction in installation costs. The in built processor can be used to pre-calibrate the sensor prior to installation. Alternatively calibration can be achieved on site via the Oliver IGD control panel or locally using a handheld PC device or laptop. A range of sensing technologies can be incorporated into the housing to provide the most appropriate detection method.
ATEX VERSIONS (TOCSIN 102) AVAILABLE
Available sensor types include
IGD’s own MKIII and Type B Pellistors,
Infra Red
Electrochemical Devices
Gas Detected Include
Flammable Gases
Carbon Dioxide
Carbon Monoxide
Nitric Oxide
Nitrogen Dioxide
Hydrogen Cyanide
Chlorine
Hydrogen Sulphide
Ammonia
Oxygen
Sulphur Dioxide
Hydrogen Chloride
ATEX VERSIONS ALSO AVAILABLE
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The Model 128 is a wall mounted gas monitor designed for reliable gas detection, easy installation and low total cost of ownership. The Model 128 is a cost-effective solution for warning of unsafe gas levels in areas such as semiconductor manufacturing, wastewater treatment, garages, warehouses, toll booths, gas bunkers, utilities, and telecommunications industries.
The Model 128 accepts from one to eight combustible, oxygen and/or toxic sensors. Each sensor provides a digitized output, allowing easy and economical networking of multiple sensors.
Features:
- Unique built-in calibration reminder
- Auto-Install feature simplifies set up
- Easy plug in electrochemical sensor replacement
- Reduces installation cost through digital communication
- Sensors can be factory configured or configured in the field
- 19 different sensors available
- Super bright LED array provides quick indication of normal, fault and alarm conditions
- Loud audible alarm (98 dB)
- Combustible gas sensors are mounted in an explosion proof housing
- Outstanding protection from EMI/RF interference
- Non-intrusive calibration for combustible sensor
- Intrinsically safe oxygen and toxic gas sensors available
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The RAID-S2 is a gas trace detector for the detection of chemical warfare agents (CWA’s) and toxic industrial chemicals (TIC’s). It is based on proven Ion Mobility Spectrometry technology. The RAID-S2 is specifically designed for long-term operations in a 24/7 environment
with preventive maintenance required only once a year. It is ruggedized for military and civil defence environments.
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Feature Highlights
* Designed to rugged military Ground Mobile guidelines
* Advanced spectrum processing for superior radioisotope detection and identification
* Simplified user interface for spectral interpretation
Additional highlights
* Compact size and lightweight
* Wireless capability
* Self-stabilizing
The HPRID is a hand-held, portable, rugged and highly accurate radioisotope detector and identifier utilizing Symetrica’s Discovery™ technology, licensed exclusively to Smiths Detection. Discovery technology features advanced spectrum processing and identification algorithms which transform a highly sensitive 2” x 2” Sodium Iodide [NaI(Tl)]detector into a high resolution spectrometer capable of identifying challenging isotopes. With these advanced algorithms, effective resolution is increased at 662 keV from 7% to 2% FWHM.
The identification performance exceeds all ANSI N42.34 requirements for bare, shielded and multiple isotopes. The on-board library comes standard with 39 radioisotopes classified and can be easily expanded.
The HPRID is easy to use while supplying the operator with simple, specific information for threat assessment. Applications include Customs inspection, border protection, radiological facilities/personnel monitoring, and emergency response
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Now get fast, on-scene detection, identification and quantitation of toxic industrial chemicals (TICs) and chemical warfare agents (CWAs) with HAPSITE® Smart, the only person-portable, gas chromatograph/mass spectrometer (GC/MS) that gives you lab-quality data with the push of a single button. GC/MS is the benchmark for positive identification of organic chemicals with the highest degree of accuracy of any available analytical technique. And with easy-to-operate HAPSITE Smart Chemical Identification System, users get the confirmatory results within minutes that are necessary to make critical decisions affecting life, health, safety and the mission.
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Feature Highlights
* Integrates with NIOSH Pocket Guide to Chemicals providing health and safety information
* Capable of immediate, accurate identification of over 32,000 chemical substances
Additional Highlights
* ReachBack™ 24/7/365 technical support
* Interface built upon HazMatID™ software
* Decon-capable device via submersion
* Ease of operation in protective gear
Designed for handheld, backpack or robot portability and ease of use in protective gear,
the HazMatID Ranger is a rugged chemical identifier featuring touch-to-sample operation.
The HazMatID Ranger is a highly specific device that utilizes proven FT-IR technology. Analysis is performed by simply touching a diamond ATR sensor tip directly to a sample. The HazMatID Ranger provides both spectral results and a list of probable substances to aid in the Responders‘ capability to identify chemicals, as well as components in mixtures.
Both its software and hardware design are based on the security industry’s most accepted portable chemical identifier, the HazMatID™. The HazMatID Ranger provides quick, easy and accurate identification of over 32,000 substances including:
• white powders
• WMDs
• explosives
• narcotics & drugs precursors
• pesticides
• common chemicals
• toxic industrial chemicals
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