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The Tocsin 102 series of gas detectors are designed for cost effective hazardous 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. Combine with the Tocsin 903 controller for local display and calibration. 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.
Available sensor types include
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
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The Guardian range of infrared gas monitors offers near-analyser quality
continuous sampling, measurement and display of target gas concentrations at an attractive price.
The Guardian SP is a high accuracy monitor offering increased short term stability in lower ranges than Guardian plus models.
For many years, Edinburgh Sensors has pioneered novel non-dispersive infra-red dual wavelength sensors with a single optical path and without moving parts. This ensures long term stability, without the need for frequent re-calibration and makes the sensor highly gas specific and insensitive to other gases or water vapour.
The Guardian plus uses a robust infra-red source, proven in the Gascard II sensor, to ensure long lifetime and reduced susceptibility to shock. The reliability is further enhanced by the elimination of all moving parts from the sensor head.
The Guardian SP is easily maintained requiring only a few minutes per year to replace the hydrophobic particle filter in the inlet housing and a simple calibration procedure to check the accuracy, typically once a year. Applications include plant physiology, horticulture, fruit storage, leak detection, landfill, ventilation control, process control, furnace applications.
The Guardian SP includes an internal pump, liquid crystal display and temperature correction. It also offers a range of user-selectable bit-switches to control the latching alarms and analogue output options. The input power to the unit is user selectable to cover world-wide voltage and frequency standards.
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The LumaSense Photoacoustic Field Gas-Monitor Innova - 1412 is a highly accurate, reliable and stable quantitative gas monitor. Its measurement principle is based on the photoacoustic infra-red detection method. This means that the 1412 can measure almost any gas that absorbs infra-red light.
Appropriate optical filters (up to 5 + water vapor) are installed in the 1412's filter carousel so that it can selectively measure the concentration of up to 5 component gases and water vapor in any air sample. Further, the instrument can compensate for interference between the measured gases, using the unique Cross-compensation feature. The 1412's detection limit is gas-dependent but typically in the 10-² ppm region.
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The Model IR400 Infrared Point Detector is a hydrocarbon gas detector that continuously monitors combustible gases and vapors within the lower explosive limit (LEL) and provides alarm indication.
All electronics are contained within an explosion-proof housing so that the IR400's detector information can be processed locally. The IR400 operates with a 4-20mA signal, which is proportional to 0 to 100% LEL gas concentration at the detector. Configurations with analog output, Modbus and HART are available. Modbus and HART data can be used for predictive maintenance.
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The Tocsin 102 series of gas detectors are designed for cost effective hazardous 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. Combine with the Tocsin 903 controller for local display and calibration. 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.
Available sensor types include
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
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The FX-IR Single Gas Transmitter uses dual infrared technology to detect combustible gases. This unique transmitter is available for the detection of hexane, methane or propane gases in lower explosive limits (LEL) or parts per million (ppm) ranges. This dual infrared design provides excellent long-term stability, eliminating the need for frequent calibration and providing additional sensitivity for the harshest environment.
Features:
- Dual detector infrared technology to monitor combustible gases in virtually any environment
- Immune a catalyst poisons such as silcone & chlorinated combustibles
- Can operate in oxygen deficient or inert atmospheres
- Excellent long term stability
- Non-intrusive calibration via a magnetic wand eliminates the need to declassify hazardous areas
- Housed in rugged copper-free aluminum enclosure (weather & explosion proof)
- Housing suitable for indoor and outdoor installation in hazardous environment
- Liquid Crystal Display (LCD) with backlight
- Minimum 5-year expected sensor life
- Connect to Thermo GasTech's controllers, PLC (Programmable Logic Controllers) or DCS (Distributive Control System)
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Dräger‘s IR gas detectors provide state of the art technology. They perform reliable measurements even in harshest environments and come with a lot of configuration options. Continuous self test routines result in fail-safe operation.
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METHANE DETECTION SYSTEMS (LOWER EXPLOSIVE LEVEL - LEL OR %V/V) THROUGH THE USE OF CATALYTIC OR INFRA RED SENSING TECHNOLOGY
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GasBoss 100 Combustible Gas Sensor -- All combustible gas sensors aren't equal. There are big differences that rarely get mentioned. Our quality catalytic bead sensors last for years, often 5-10 or more, before a head needs to be replaced. Most of our competitors' last a year, maybe two. And, our GasBoss*100 sensors are low current so are approved intrinsically safe (I.S.) -- not explosion proof (X/P). Competitors' old fashioned high-current sensors are approved X/P -- not I.S. But X/P dictates that you either remove power from the sensor or declassify the area whenever intrusive maintenance is done. Did you know that I.S. maintenance can be done safely under full 24VDC power? Long life and I.S. combine to improve safety while vastly reducing your maintenance cost by cutting the frequency of cell replacement, while eliminating the cost of disrupting your operations. US-built and serviced. Rely on Rel-Tek for the best solutions.
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Features:
Rugged, ultra-compact (4.2 x 2.4 x 1.4 in / 10.7 x 6.0 x 3.6 cm) and lightweight (5.6 oz. / 160 g)
Simple one-button operation
Standard datalogger (16 hours) and eventlogger (10 events)
Durable, stainless steel alligator clip
Integral concussion-proof boot for the most rugged environments
Continuous LCD shows simultaneous gas concentrations for H2S,CO, O2, and combustibles (0-100% LEL or 0-5.0% Methane)
Powered by a lithium polymer battery (run-time typically 14 hours;recharge in less than 3 hours)
Provides 95 dB alarm tone and bright wide-angled alarm bars
Equipped with internal vibrating alarm for high noise areas
Backlight: in alarm (auto) and on demand reactivation
Four alarm levels: Instant Low and High Alarm for all gases;TWA (time weighted average) and STEL (short term exposure limit) for H2S, CO; OL (over limit alarm)
Simple automatic calibration procedure
Fully compatible with BW's MicroDock II automatic test and calibration system
Records TWA, STEL and maximum exposures to gas and displays readings on command
User selectable options include: confi dence beep, latching alarm, calibration due date, bump due date, "SAFE" display function, multi-language, span concentration values, combustible sensor measurement selection (0-100%LEL or 0-5.0% v/v methane) and stealth mode
Full function self-test of: sensor, battery, circuitry and audible/visual/vibration alarms
Delivered ready for use with sensors, lithium polymer battey, stainless steel alligator belt clip, calibration hose/cap and instructions
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The need to continuously and simultaneously measure the concentration of several gases arises frequently in industrial and community applications. For these kinds of measurements, Dräger offers a complete product line to provide our customers with custom solutions.
The Dräger X-am 7000 is protected not only against dust and dirt penetration and splashing water, but also submersible. As standard, a rubber casing protection safeguards the device against damages even in the event of a fall from a height of 1.5 m. Shock-resistant sensors provide accurate and precise measurement results
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For over 40 years GfG has been specializing in the development and manufacturing of systems for the measurement of explosive and toxic gases, oxygen as well as further parameters in air and water used in communities, chemical industry, fire and civil protection, mining, power supply, food processing industry, shipping, steel industry, agriculture and also research institutes and universities.Our range extends from sensors, to the smallest gas measuring device in the world, microprocessor driven multimeter with data storage to computer supported systems.
At GfG measuring instruments and sensors are developed by a highly-qualified team of engineers and scientists. A special focus is the development of sensors with the measuring system of IR-absorption, catalytic combustion and thermal conduction.
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G450 Series - New 4-Gas Detector
Watertight design
The compact and lightweight 4-gas detector continuously measures CO, H2S, O2, and combustibles in ambient air. It's functional and watertight design (IP67) incorporates an impact proof, rubberized housing to meet the toughest requirements of harsh environments.
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GfG is a world leader for gas detection and measurement technology. For over 40 years GfG has specialized in designing, developing and producing the safest and most reliable equipment and sensors available.
GfG offers an extensive range of portable monitors and fixed systems. The product range includes sensors, the world´s smallest gas monitors, micro-processor controlled multi-gas detectors and computer aided system solutions. GfG provides diverse solutios for Toxic, Explosive and Oxygen gas detection in air and water.
GfG equipement is used in a variety of applications and industries including automotive, chemical industries, landfills, steel industries, hospitals, mining, public utilities, food processing, research institutes, universities and wherever the protection of life and property is needed.
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The SafeTNet 210 microprocessor-based controller is designed to detect up to two gases combustible, oxygen, and/or toxic.
- Digital readout display
- 4 to 20 mA
The SafeTNet 410 are microprocessor-based controllers designed to accept the input from one to four remotely located combustible, oxygen, and/or toxic gas detector heads.
- Digital readout display
- 4 to 20 mA
Standard Features:
- Digital readout display
- LED alarm indication
- 4 to 20 mA output
- Individual low and high alarm outputs with a common fault alarm relay
- Housed in NEMA 4X fiberglass enclosure
- 98 dB external buzzer
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Open Path Gas Detectors measure combustible hydrocarbons along a line of sight, between an optical transmitter and a receiver. The well proven measurement principle is based on IR absorption.
Path lengths up to 200 metres can be monitored with Dräger Safety Open Path Systems. Only this technology is measuring the amount of released gases and thus gives a direct measure of the hazard.
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The Model IR5000 Open-Path Infrared Combustible Gas Monitor is designed for detection of hydrocarbon gases in the 0-5,000 ppm•meter and 0-5 LEL•meter ranges, simultaneously. The IR5000 uses a single beam source and detector to monitor gas concentrations, improving accuracy, reducing drift and improving immunity to false alarms.
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Simtronics is pleased to announce the put on the market of the GD1, a new generation of open path detector.
The GD1 innovates by creating a new standard of toxic gas detection. At the heart of the detector is a tuneable laser diode that eliminates environmental effects from sun, rain, and fog. The laser scans single absorption lines where there is no interference from other gases. This new technology constitutes an important progress with exceptional performances and a extreme reduced maintenance.
Unlike traditional methods for detecting H2S (MOS or EC cell), the GD1 needs no recalibration and can replace multiple standard detectors to cover the same risk. Compared to traditional detectors the GD1 offers:
• Faster detection
• Reduced maintenance
• A life calibration
• Fast acting
The GD1 is also available with a dual output gas configuration, Methane and Hydrogen Sulphide.
Supplied with worldwide hazardous area approvals. Suitable for use in SIL 2 systems.
With its level of detection lower than 5ppm and it is faster response time (T90 < 5 sec) the GD1 is ideal to ensure the personnel safety on petrochemical installations onshore or offshore or for the sites of treatment of waster water.
Furthermore, the GD1 offers real cost savings, using a single transmitter / receiver pair, the detector covers distances of up to 100 metres. Installation and maintenance costs are reduced as fewer devices are needed to cover the same risk as several point detectors.
As with all Simtronics’ products, the GD1 is designed for early detection of hazardous events. It’s built to work safely in extreme areas and withstand the hardest environments onshore and offshore.
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Fault-proof measurement of oxygen
J. Dittrich Elektronic's oxygen measuring systems determine the oxygen content in gas mixtures, monitor their own function during operation, signal malfunctions in the hardware and sensor, can be calibrated without personnel or reference gas in atmospheric air and, hence, are fault-proof.
A second oxygen sensor is not necessary!
The oxygen measuring system MF010-O is the first such system to obtain positive certification of its fault-proofness from the Technical Inspectorate of Southern Germany (TÜV).
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The Series 2500 Percent Oxygen Transmitter is a true two-wire transmitter offering an economical way to make accurate and dependable percent oxygen measurements in a variety of gases. The Series 2500 Percent Oxygen Transmitter is both dustproof and waterproof, and is rated for NEMA 4 (IP66) service.
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Model InstaTrans (3001) Oxygen Transmitter
The Insta Trans is a two-wire, loop-powered 4-20 mA oxygen transmitter packaged within a weather tight NEMA-4 housing. The product was named for its built-in level of flexibility. It can instantly transform from ppm to percent (or vice-versa) simply by changing out the Teledyne sensor and resetting the range scale of the unit to ppm or percent via the function keypad.
The Insta Trans has six user selectable ranges from 0-10 ppm to 0-25 %. The user can easily change to the preferred range via the built in function keypad. In addition, depending on the corrosive nature of the sample, the Insta Trans can be supplied with either stainless steel or nylon wetted parts.
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THORNTON dissolved ozone sensors are designed for reliable monitoring in the sanitization of pharmaceutical waters and semiconductor ultrapure water. They give reliable and accurate response and require only infrequent, simple maintenance. They provide stable measurements both in normal ozonation ranges and near zero, after ozone destruction.
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The Model 465L UV Photometric Ozone Monitor is an
extremely stable analyzer, ideal for critical low-level ppm
safety and process applications. Its calibration is NIST
traceable and the included pressure and temperature
compensation ensure high accuracy under all
conditions.
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The freely programmable, self-monitoring limit monitors made by J. Dittrich Elektronic evaluate the signals measured by the connected measuring systems (e.g. for toxic or explosive gases, oxygen, carbon dioxide, temperature) and trigger an alarm or other subsequent functions when the values rise above or fall below a certain limit value.
An alphanumeric display constantly shows the measured values.
Different measuring systems can be connected to a limit monitor via 4-20 mA interfaces; altogether at most 2 measuring systems with type GWZ-S2, 4 with type GWZ-S4 and 6 with type GWZ-S6.
Output of the signals
The limit monitor outputs its signals via 4 relays:
Two limit indicating relays signal when the values rise above or fall below the limit values; hence, they can, for example, trigger a preliminary or main alarm visually or acoustically or switch a ventilator on and off.
A horn relay is provided additionally for controlling the horn.
Since the limit monitor checks itself for any cable breaks, short-circuits and power failure, the alarm relay system indicates any malfunctions in the device.
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RHE OLIVER IGD LIMITED TOCSIN 101 PROVIDES A FREON GAS DETECTION TRANSMITTER COMPLETE WITH RELAY OUTPUT.
THE TOCSIN 103 ALLOWS NUMBERS OF FREON OR AMMONIA DEVICES TO BE INTERCONNECTED TO A CENTRAL CONTROL PANEL
THE TOCSIN 102 IS AN ATEX CERTIFIED TRANSMITTER FOR FREON OR AMMONIA THAT CAN ALSO BE INTERCONNECTED TO CENTRAL CONTROL PANEL
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The Bacharach HGMSZ (Halogen Gas Monitor Single Zone) is designed for continuous single-point monitoring of CFC, HFC, HCFC and Halon refrigerant gases. The HGMSZ displays the type of gas being monitored, along with displaying both the current gas level and the peak gas level detected on its front panel LCD. The instrument retains a log of previous readings that can be easily accessed for analysis.
An internal audible alarm and front panel indicators are provided to signal alarm and fault conditions, and relay contacts can be used to trigger external alarm devices in the event of a system fault, or if a leak (small), spill (medium), or evacuation (large) level of gas is detected. The system also includes a 4%u201320 mA current loop interface that can be connected to remote monitoring equipment.
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The Ultima ID Refrigerant Identifier delivers the features and benefits today’s professional A/C technicians want. Its ergonomic design and exceptionally portable design make it easy and profitable to use.
Capabilities:
Utilizes dispersive infrared (NDIR) technology to determine the weight concentrations of R12, R134a, R22, hydrocarbons and air
"Blend-ID" analytical software identifies all EPA S.N.A.P. approved blends
Identifies illegal replacements and blends including propane and butane
Quickly and automatically determines if the purity of R12 and R134a refrigerant is at industry acceptable levels
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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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SF6 GasCheck P1 is designed for the location, leak testing and measurement of SF6 gas in high voltage electrical switchgear and many other leak detection applications. This instrument has none of the problems of registration, storage and transportation associated with instruments based on the radioactive source ECD principle, which also require high purity and high pressure Argon gas. Data Storage and printing at the touch of a button. Although designed for SF6 in switchgear other gases with a high affinity for electrons, such as refrigerant R12 may also be detected.
The negative ion capture (NIC) detector is combined with `smart sensor´ technology. There are no items requiring maintenance or service in the handgun or console.
This instrument meets the demands for quality and traceability to International standards as required by today's industry.
SF6 GasCheck P1 is now also available with a highsense option detecting leaks as small as 1 x 10-8 ml/sec!
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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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Fixed gas detectors
