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Gas density controllers
These operate mechanically. The density of the sample gas is compared via a bellows system with the gas density in a reference gas chamber. If the density of the sample gas alters, the bellows system actuates one or more micro switches. Gas density controllers function independent of any industrial power supply.
Trafag gas density controllers are employed internationally in gas-insulated, high-voltage switchgear in power distribution networks. Their performance record is worldwide is unique. Even at climate-related temperature fluctuations of over 135°C, they provide precise measurement results and function reliably and maintenance-free. They are therefore to be found all around the world, in the ice-cold polar regions or under the blazing desert sun.
Gas density sensors
function electronically. The consistent resonant frequency of a quartz oscillator under vacuum is compared with the resonant frequency of an identical quartz situated in the sample gas. The difference in the resonant frequency is proportional to the density of the sample gas. This difference is processed into a digital or analogue output signal. |
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BW Technologies has raised the bar for maintenance-free detection with the new GasAlertClip Extreme. Providing two years of protection from H2S, SO2, CO or O2, the water-resistant GasAlertClip Extreme has a built-in concussion-proof professional boot and is ideal for amphibious operations and high-moisture environments. Equipped with two alarm levels and an internal industrial vibrator, the GasAlertClip Extreme now features four visual LEDs, and a high-output audible alarm.. The large, alphanumeric screen provides instant notification of gas alarms, test status, life remaining (months then days then hours) and peak (maximum) exposures encountered. The GasAlertClip Extreme`s advanced microprocessor performs a full function self-test automatically on startup and on demand to verify sensor, circuit and battery integrity, as well as audible/visual alarm operation. Generating a permanent record of gas alarm events has never been easier. The GasAlertClip Extreme allows for effortless transmission of stored event data to a cordless professional printer or a PC for review and analysis. Despite being loaded with features, the GasAlertClip Extreme is compact and light, which makes it comfortable to wear. Clip it to your lapel, pocket, professional belt or hardhat for unequalled protection.
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GasCheck is conveniently calibrated against helium - the most commonly used tracer gas - and is particularly sensitive to ammonia, argon, butane, hydrogen, SF6 and refrigerants. The instrument range offers intrinsically safe versions for use in flammable areas and can also safely detect flammable gases.
GasCheck Features include:
- Detects even the smallest of leaks
- Repeatable readings
- Accurate leak measurement
- Intrinsically safe versions
- Data logging capability
- Hand held
- Large back lit display
- Choice of readings in ppm or ml/sec
Holds peak reading |
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BW Technologies has set a new industry benchmark for performance, value and ease-of-use with the GasAlertMicro multi-gas detector. The ultra-compact and durable GasAlertMicro offers the most advanced features of any confined space gas detector on the market today, at the industry’s most economical purchase price.
Simultaneously displaying oxygen, hydrogen sulfide, carbon monoxide and combustibles present, GasAlertMicro delivers cutting-edge protection and is ideally suited to a wide range of applications, including hazmat response, confined space entry, search and rescue, and post-inspection fire safety.
GasAlertMicro’s features include high-output audible/visual/vibrator alarms; low, high, TWA and STEL alarm settings; a large, alphanumeric LCD; two LEL measuring units (0-100% LEL and 0-5% by volume methane); a built-in concussion-proof professional boot; and optional data-logging capabilities.
Field-selectable user options allow GasAlertMicro to be customized to virtually any environment. Calibration due-dates and alarm settings can be configured to meet specific industry requirements, and the pass code protect function ensures tamper-proof operation by preventing unauthorized users from accessing calibration options.
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Built with the durability and simplicity found in every Industrial Scientific instrument, the M40 is a reliable, low cost gas monitoring solution for confined space or personal monitoring applications. The M40’s rugged composite case is immune to RFI, and houses four discrete detection, a large LCD readout, and integral lithium-ion battery for up to 18 hours continuous runtime.
The M40 continuously industrial monitors oxygen, combustible gases, carbon monoxide, and hydrogen sulfide in any combination, activating bright alarm light, 90-dB audible and internal vibrating alarms when gas concentrations exceed the preset limits. Additional standard features include Peak/Hold functions, STEL and TWA readings, a continuous loop datalogger and ‘Quick-Cal’ calibration.
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Smaller and over 50% lighter than competitive instruments
Water-resistant design in an integral concussion-proof enclosure
Continuous LCD shows simultaneous gas concentrations for five gases
0 - 1000 ppm measurement of VOCs (Volatile Organic Compounds)
Integral motorized pump option for remote sampling
Two power options: AA alkaline or rechargeable hot-swappable battery pack
Provides 95 dB alarm tone and two bright wide-angled alarm bars
Equipped with internal vibrating alarm for high noise areas
Multi-language support in English, French, German, Spanish, and Portuguese
Three backlight options: standard- activates in low light (auto), in alarm (auto) and reactivates on-demand; alarm only- activates in alarm conditions and reactivates on-demand; stealth mode
Four alarm levels: instantaneous Low and High Alarm for all gases; TWA (time-weighted average) and STEL (short-term exposure limit) for VOCs and toxic gases
Simple automatic calibration procedure; compatible with BW MicroDock II automatic test and calibration station
Records TWA, STEL, and maximum exposures to gas and professional displays readings on command
User selectable field options include: PID correction factor, language selection, confidence beep, span level, set TWA/STEL calculation choice, set calibration due date, pass code protection, latching alarm, 'SAFE' display function, stealth mode, and selectable ppm resolution for some gases (e.g. SO2 0.1 ppm)
Full function self-test of: sensor, battery and circuit integrity; and audible/visual alarms
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The ToxiRAE II is a single gas, reusable personal protection monitor that continuously professional displays toxic gas concentrations. Unlike typical disposables that only display "remaining life", the ToxiRAE II is a full-featured gas monitor providing continuous, digital display of the gas concentration, STEL, TWA, and Peak values as well as high, low, TWA, and STEL alarms.
A simple to use one-button product, the ToxiRAE II is easy to calibrate. Use the pre-set alarms, or modify the alarms to meet your specific requirements. In contrast to disposables that are turned on once and remain on until their professional batteries expire, you decide when and where to use your ToxiRAE II and you turn it on and off accordingly.
This product has ATEX approval. |
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BW Technologies has set a new industry benchmark for a rugged, weatherproof single gas monitor in the new GasAlert Extreme. Starting at $395, the detector provides protection from H2S, SO2, Cl2, CO, HCN, NO2, O2, NH3 or PH3. Ultra-compact and durable, the GasAlert Extreme with an IP66/67 rating offers the most advanced features of any single gas detector on the market today.
GasAlert Extreme features: high-output audible/visual/vibrator alarms; low, high, TWA and STEL alarm settings; a large, alphanumeric LCD with real-time display; auto backlight: “run silent mode” and a built-in concussion-proof professional boot.
Field-selectable user options enable GasAlert Extreme to be customized to virtually any environment. Calibration due-dates and alarm settings can be configured to meet specific industry requirements. The pass code protect function ensures tamper-proof operation by preventing unauthorized users from accessing calibration options.
Optional data logging, event logging and multiple language options provides more enhanced flexibility. BW Technologies’ MicroDock calibration and test station, currently available for GasAlertMicro multi-gas detectors manufacturers, will soon be compatible with the GasAlert Extreme for automated calibration, bump testing and record storage. |
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The ToxiRAE 3 is a full-featured single-gas monitor that offers unequaled cost of ownership value. The ToxiRAE 3 is compatible with the AutoRAE Lite bump and calibration station, http://www.raesystems.com/products/autoraelite
STEL, TWA, low, and high alarms can also be recorded. The detector is warranted for 2 years and maintenance free with replaceable battery.
Overview:
— Lowest cost of ownership on the market.
— Rugged steel housing for harsh environments.
— Fastest instrument response time on the market for better protection and worker safety.
— Fastest bump station on the market with highest productivity, putting workers back to work quickly.
— Compact, low-cost bump and calibration station enables the ability to put the bump capability where it is needed.
Key Features:
- High-performance 3-electrode pinless micro sensor with the fastest response time
- 0.1 ppm H2S resolution, and high-range 1999 ppm CO available
- Large, easy-to-read display facilitates overview of gas concentration or days remaining (end-user adjustable)
- Event logging of up to 10 events
- Full activity records when used with AutoRAE Lite calibration station
- Intuitive, simple-to-operate user interface
- IP-67 water-proof and dust resistant
- Loud, 95 dB audible alarm, bright red flashing visible LEDs and internal vibration alarm
- Color-coded labels for gas type
- Extended operating temperature of -4° to 140° F (-20° to +60° C) with full T4 approval
- User-configurable bump/calibration reminders
Gas Range (ppm) Resolution (ppm)
Hydrogen Sulfide (H2S) 0-100 0.1
Carbon Monoxide (CO) 0-500 1
Carbon Monoxide (CO) 0-1999 1 |
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| Single suppliers of gas detectors for combustible gas are the economical way for measuring and monitoring flammable gases or vapors. They can be used for personal monitoring as well as for area monitoring. MSA offers the solution for your needs. |
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Portable gas professional monitors belong to personal protective equipment to monitor one or more gas hazards.
GfG portable instruments are the smallest measuring instruments for personal safety. They offer more safety through easy operations. |
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In order to evaluate how much the human being is endangered by hazardous substances in the ambient air or explosive mixtures of gases and vapours in the air, appropriate measuring instruments can be used to recognize, measure and monitor dangerous concentrations.
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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 detection available.
GfG offers an extensive range of portable professional monitors and fixed systems. The product range includes sensors, the world´s smallest gas monitors, micro-processor controlled multi-suppliers of 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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| DirectSense TOX multi-gas professional monitors combine the latest available electrochemical gas sensor technology with the advanced capability of mobile professional computing. Toxic gas detection are available for measuring Ozone (O3), Ammonia (NH3), Sulfur Dioxide (SO2), Nitrogen Dioxide (NO2), Nitric Oxide (NO), Carbon Monoxide (CO), Hydrogen Sulfide (H2S), Hydrogen Cyanide (HCN), Hydrogen Chloride (HCl), Oxygen (O2), Chlorine (Cl2), Arsine (AsH3), Phosgene, (CCl2O), Phosphine (PH3), Diborane (B2H6), Silane (SiH4), Chlorine Dioxide (ClO2), Fluorine (F2), Hydrogen (H2), Hydrogen Fluorine (HF) and Ethylene Oxide (EtO). Up to 5 gas sensors (in addition to a temperature sensor) can be configured into a single TG-501 probe. Or choose the EC-202 probe for temperature and a single gas sensor. If %RH is important in the same probe, check out our TG-502 probe. GrayWolf toxic gas instruments efficiently log and document your surveys. |
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| Dräger's portable gas detection instruments have been developed to meet the demands of our everyday working lives. Handy and robust, they provide a high technical standard and have been tried and tested in different fields of application. |
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| Included in the wide product range of Dräger Safety are a reliable line of multi-gas industrial scanners. These instruments enable you to measure electronically several gases and/or vapours simultaneously through the use of two different technologies: Ion Mobility Spectrometry (IMS) and Photo Ionization Detection (PID). |
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Compact Multi-manufacturer of gas detector for H2S, CO, O2, Combustibles
The QRAE II is a full-featured, compact, one- to four-sensor gas detector for detection of combustibles, oxygen, hydrogen sulfide, and carbon monoxide. Key features include easy-to-change, externally accessed battery packs (available in rechargeable and alkaline versions), a water-resistant case and a new state-of-the-art O2 sensor technology with extended life.
Key features include:
Patented SPE O2? O2 sensor
Best EMI/RFI immunity technology for products in its class, eliminating radio interference
Easy access to detection, professional filter and battery compartment without exposing electronic components to potential damage
Big graphic indicator for easy overview of gas type and concentration
Alkaline adapter and Lithium-ion battery pack
Rugged housing withstands harsh environments |
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| Primarily suitable for confined space entry applications Scott offer a range of self contained, portable instruments for the simultaneous monitoring of up to four gases: typically oxygen, flammable and two toxic gases. |
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| FirstCheck is the very first multi-gas to combine complete VOC and toxic supplier of gas detection from 1 ppb up to 10,000 ppm with traditional multi-gas sensors for oxygen, hydrogen sulfied, carbon monoxide and explosive gas detection. |
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The MultiRAE Plus combines a PID (Photoionization Detector) with the standard four gases of a confined space monitor (O2, LEL, and two toxic gas sensors) in one compact monitor with industrial sampling pump. The MultiRAE Plus gets the job done in more circumstances than any other gas detector manufacturer. The MultiRAE Plus is quickly and easily changed from a sophisticated technician instrument to a simple text-only monitor. The same monitor can be used as a personal monitor, a hand-held sniffer, or as a continuous operational area monitor.
The MultiRAE Plus detector can be made wireless with the use of RAELink. This allows real-time monitoring information from the detector to be integrated into an existing AreaRAE system. A wireless, RF (radio frequency) modem allows detectors to communicate and transmit readings and other information on a real-time basis with a remotely located AreaRAE base controller up to two miles away.
This product has ATEX approval. |
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Compact and lightweight, the new GasAlert100 provides 100 days of continuous, maintenance-free protection from H2S or CO. With two alarm levels and an alphanumeric LCD, the intrinsically industrial safe GasAlert100 is a practical solution to plant turnarounds and short-term work projects.
One-button operation activates a daily self-test and professional displays alarm setpoints and peak alarm exposure encountered. Life remaining is continuously displayed, in days and then hours.
Features
100 days of continuous protection
Continuous, alphanumeric LCD
Records and displays peak alarm encountered
Small size--1.0 x 1.45 x 2.3 in. / 26 x 37 x 58 mm
Light--weighs just 1 oz. / 30 g
Maintenance free--no sensor or battery replacement, no calibration, no downtime
Self-Tests
Daily, full function self-test verifies sensor and circuitry integrity
Battery is tested continuously (auto) and on demand
Manual self-test on demand
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| Quest Technologies offers a variety of hand-held single and multi-gas professional monitors in non-logging and datalogging versions. |
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| Scott offer a wide range of personal hand held gas professional monitors for the detection of oxygen, toxic and flammable gases. |
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AreaRAE Steel is the first ATEX certificated Wireless Monitor in Europe with up to 5 simultaneous gas sensors including Toxic Industrial Chemicals. It runs licence-free communication and RAE Systems can show over 2.500 installed base.
The AreaRAE Steel is housed in a welded stainless-steel enclosure, it is rugged, portable and weather-resistant, making it suitable for harsh environments. Ideal for hazardous materials and other emergency response monitoring applications, strategically placed AreaRAE Steel professional monitors can be used to quickly establish a perimeter, allowing first responders to back off to a safe position and monitor readings from up to 3 kilometers away.
The photoionization detector (PID) in the AreaRAE Steel can measure parts per million of volatile organic compounds (VOCs). In addition, it can be equipped with a lower explosive limit (LEL) sensor, an oxygen sensor, and one or two electrochemical toxic sensors for measuring specific substances such as hydrogen sulfide or chlorine.
An integrated wireless modem transmits real-time gas measurement data to a base station, which employs a standard Windows-based PC running ProRAE Remote software.
Key Features
- Up to five sensors (PID, LEL, O2 and two electrochemical toxic gas)
- Loud buzzer and large, extra-bright warning light
- Large LCD display and keypad
- Rugged, weather-resistant stainless-steel housing
- Built-in sampling pump
- Interchangeable Li-ion or alkaline battery pack
- Continuous operation via AC source
Applications
- HazMat and Emergency Response
- Refineries and Petrochemical Plants
- Power stations
- Pulp and Paper Industry
- Marine and Offshore Wells |
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| HazardWatch is a modular Fire and Gas detection System built using state-of-the-art industrial automation/control equipment to perform the requirements of an integrated Fire and Gas Detection System certified by Factory Mutual to be compliant to NFPA 72 (2002). |
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