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Alphasense Hydrogen Sulfide sensors operate using well-known fuel cell technology. The H2S-A series sensors are designed for continuous use between -30C and +50C, making H2S-A1 ideal for Oil and Gas/Petrochemical applications in adverse climatic conditions.
The H2S-A offers our leak free guarantee and good, reliable detection performance. The leakproof housing is moulded in colour coded plastic for ease of identification.
Our unique ATAV test and validation system enables us to perform customised testing to customer requirements. A record of each sensor's performance is stored in our database, accessible via the sensor barcode, available as hard copy evidence and as a powerful diagnostic tool. |
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Alphasense Hydrogen Sulfide Miniature sensors operate using well known fuel-cell technology. The Alphasense H2S-D series offers our unique leak-free guarantee and superior detection performance all in a diameter of 14.5mm. Only its size is reduced, not its performance or guaranteed life. The leakproof housing is colour coded for ease of identification.
As with all other Alphasense sensors, the use of stabilisation racks to continuously monitor every sensor during initial conditioning ensures that only sensors operating within specification are passed to the companies unique ATAV (Alphasense Test and Validation) system. This also enables us to perform customised testing to customer requirements. The key operating characteristics for every sensor are recorded against the sensor serial number, which is bar coded onto the sensor. This data can be released at the time of despatch so that full traceability is maintained. |
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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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TGS821 Semiconductor type
Figaro semiconductor type sensor TGS821 has high sensitivity to low concentrations of hydrogen. Even at 100ppm of hydrogen, the sensor can detect the target gas with good repeatability and long term stability. Figaro's unique sensor technology makes this sensor highly selective to hydrogen. TGS821 utilizes a durable ceramic housing that makes it ideal for industrial applications which involve transformer maintenance or usage of batteries. This sensor is also appropriate for checking gas leakage within a fuel cell system.
TGS6812 Catalytic type
Figaro's catalytic type sensor TGS6812 can detect levels of hydrogen up to 100%LEL. This sensor features high accuracy, good durability and stability, quick response, and linear output. This sensor can detect not only hydrogen but also methane and LP gas, making it an excellent solution for monitoring gas leakage from stationary fuel cell systems which use hydrogen that is transformed by combustible gases. Due to an adsorbent inside its sensor cap, the cross sensitivity of TGS6812 to alcohol is much smaller than can be found in traditional catalytic type sensors. In addition, TGS6812 is more durable against silicone compounds than the traditional catalytic type sensors. |
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Cross sensitivity to H2, > 4%
Sensitivity nA/ppm in 400ppm CO 55 to 85
Response time t90 (s) from zero to 800ppm CO < 45
Zero current ppm equivalent in zero air < ± 2
Resolution RMS noise (ppm equivalent) < 1
Range ppm CO limit of performance warranty 2,000
Linearity ppm error at full scale, linear at zero and 800ppm CO < ± 40
Overgas range maximum ppm for stable response to gas pulse 4,000 |
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H2scan’s HY-ALERTA™ 1600 Intrinsically Safe Area Hydrogen Monitor provides hydrogen-specific leak detection and measurement for hydrogen concentrations as low as 4000 ppm and can be scaled to any concentration up to 5% hydrogen by volume, a range representing 10% to 125% of hydrogen’s low flammability limit. H2scan's hydrogen-specific sensor technology has no cross sensitivity to other combustible gases, thus eliminating false positive alarms.
Performance
Hydrogen Sensitivity Range:
0.4% to 5% hydrogen by volume
10% to 125% hydrogen lower flammable limit
Accuracy: ± (0.03 x indication + 0.2) percent hydrogen by volume
Typical Response Time: T90 of 60 sec maximum
Ingress Protection: IP64 capable
Calibration Interval: 90 days
Product Life Expectancy: 10 years
Interface Options
Power Barrier Input Voltage: 24 VDC nominal
Power Barrier Input Voltage Range: 20 VDC to 28 VDC
Intrinsically Safe Sensor Input Voltage: 10 VDC
Sensor Input Voltage Range: 5 VDC to 28 VDC
Input Power: 10 W
Analog Outputs: 4 mA to 20 mA
Serial Communication: RS422
Operating Conditions
Operating Humidity: 0% to 95% RH
Operating Temperature Range: -20ºC to 40ºC
Storage Temperature Range: -40ºC to 50ºC
Calibration Background Gas: Air
Included Accessories
Intrinsically Safe Power Barrier
4 m Power / Analog Cable
Optional Accessories
Intrinsically Safe Analog Output Barrier
Intrinsically Safe Serial Interface Barrier
4 m RS422 Serial Interface Cable
Dimensions
Total Length: 8.1 in.
Total Width: 4.4 in.
Depth: 1.6 in. |
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H2scan’s HY-ALERTA™ 600 Fixed Area Hydrogen Monitor provides hydrogen-specific leak detection and measurement for hydrogen concentrations as low as 4000ppm and can be scaled to any concentration up to 5% hydrogen by volume, a range representing 10% to 125% of hydrogen’s low flammability limit. The monitor is
designed for either ceiling or wall mount and has an RS422 capability that extends the interface from the sensor to the controller to several hundred feet. H2scan's hydrogen-specific sensor technology has no cross sensitivity to other combustible gases, thus eliminating false positive alarms and ensuring safety system reliability.
Performance
Hydrogen Sensitivity Range:
0.4% to 5.0% hydrogen by volume
10% to 125% hydrogen lower flammable limit
Accuracy: ± (3.0% of indication + 2000ppm)
Typical Response Time: T90 less than 30 sec
Ingress Protection: IP64 capable
Calibration Interval: 90 days
Product Life Expectancy: 10 years
Interface Options
Input Voltage Range: 8VDC to 13VDC
Input Current: 0.5A
Analog Outputs:
Output Voltages - OR - Output Currents
• 0VDC to 5VDC • 4mA to 20mA
• 1VDC to 5VDC • 0mA to 20mA
• 0VDC to 4VDC • User-specific mA range
• 0.5VDC to 4.5VDC
• User-specific VDC range
Serial Communication Options: RS232 or RS422
Relay Contacts: Two programmable 60VDC/1A
SPDT relays with both normally open (N.O.)
and normally closed (N.C.) contacts.
Operating Conditions
Operating Temperature Range: -20ºC to 40ºC
Storage Temperature Range: -40ºC to 50ºC
Operating Humidity: 0% to 95% RH
Calibration Background Gas: Air
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PART # HGDI-SR (SINGLE RELAY)
HGDI-DR (DUAL RELAY)
Hydrogen Gas Detector
Lead-acid storage batteries emit hydrogen while gassing during charge. Hydrogen concentration of 4% to 75% by volume in air are potentially explosive. Hydrogen gas detector is designed to provide for dissipation and warning before any concentration reaches the lower explosive limit (LEL) of 4%.
- 1% Concentration energizes a relay which activates your exhaust fan
- 2% Concentration activates a built-in, pulsating warning alarm
- One-Year Warranty
- 110V; 50/60 htz
- 220VAC or 12VDC available
- 7"h x 4 3/4"w - 2 1/2" deep
ADDITIONAL PARTS:
HGDI-REMOTE - 20FT
HGDI-JUNCTION BOX
HGDI-TEST & CALIBRATE |
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| The S4100T Intelligent Sensor is a highly reliable, self-contained, microprocessor-controlled hydrogen sulphide transmitter with integral 3 digit readout. It is designed to measure and display concentrations of H2S in the 0-20 ppm, 0-50 ppm or 0-100 ppm range, but will continue to display concentrations up to 120% FSD. The sensing element may be incorporated in the transmitter housing or remotely mounted at distances of 600 meters. The sensor employs thin film metal oxide semiconductor (TFMOS) technology as the measuring principle. |
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SIMTRONICS “TT63ES” detector is a semi-conductor sensor type with a very low cross sensitivity to other gas.
The basic principle is the resistance variation of a tin oxide semi-conductor. The inflammable gas reacts with the oxygen absorbed at the surface of the semi-conductor, and causes the electric resistance to decrease. The nature of the semi-conductor, its doping and its service temperature contribute to better detectivity of certain gases.
When other semiconductor on the market need to smell gas every week to avoid the sensor to fall asleep, the SIMTRONICSsemiconductor sensor only needs a six-month or one year calibration test.
Modern electronics provides high performance for humidity and temperature rate compensation and long term stability. The circuits ensuring the supply to the sensor, the amplifier and the interface are grouped in the flameproof enclosure onto which the detection probe is secured. |
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Ultra-fine leak detection method using a mixture of nitrogen and hydrogen
(5% H2 and 95% N2)
- Non-destructive testing,
- Leak detection,
- Sealing control,
- Leak localization,
- Object validation,
- Certification |
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H2scan believes that protecting lives means being able to locate and find a hydrogen leak as quickly as possible. With two sensing elements on the same semiconductor die, the HY-ALERTA™ 500 can detect hydrogen leaks as
low as 15ppm and will not saturate or be destroyed when detecting concentrations of hydrogen up to 100%. The flexible cable allows the sensor probe access to virtually all potential leak sources.
Performance
Hydrogen Sensitivity Range:
15ppm to 100% hydrogen by volume
No peripheral equipment needed
Typical Response Time: less than 30 sec
Ingress Protection: IP64 capable
Field Verification/Calibration Period: 1 year
Product Life Expectancy: 10 years
Lithium Ion Battery Performance
Operating Time: 10hours
Charge Time: 4hours maximum with included charger
Operating Conditions
Operating Temperature Range: 0ºC to 45ºC
Storage Temperature Range: -20ºC to 45ºC
Operating Humidity: 0% to 95% RH
Calibration Background Gas: Air
Dimensions
Unit Weight: 2.15lbs, 975g
Total Length: 6.8in.
Total Width: 3.4in.
Depth: 1.4in.
Probe Length: 7.8in.
Probe Tip Diameter: 0.5in.
Probe Handle Diameter: 1.2in.
Coiled Cord Length Retracted: 26in.
Coiled Cord Length Extended: 72in.
Coiled Cord Diameter: 0.7in.
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H2scan’s HY-ALERTA™ 2600 Explosion Proof Area Hydrogen Monitor provides hydrogen-specific leak detection and measurement for hydrogen concentrations as low as 4000 ppm and can be scaled to any concentration up to 5% hydrogen by volume, a range representing 10% to 125% of hydrogen’s lower flammability limit. The monitor is designed for either ceiling or wall mount and has an RS422 capability that extends the interface from the Sensor Module to the Control Module to several hundred feet. H2scan's hydrogen-specific sensor technology has no cross sensitivity to other combustible gases, thus eliminating false positive alarms.
Performance
Hydrogen Sensitivity Range:
0.4% to 5.0% hydrogen by volume
10% to 125% hydrogen lower flammable limit
Accuracy: ± (0.03 x indication + 0.2) percent hydrogen by volume
Typical Response Time: T90 of 60 sec maximum
Ingress Protection: IP66
Calibration Interval: 90 days
Product Life Expectancy: 10 years
Interface Options
Input Voltage Range: 90 VAC to 260 VAC
Input Power: 15 W
Analog Output: 4 mA to 20 mA
Serial Communication: RS422
Relay Contacts: Two programmable 5 A, 250 VDC / VAC
SPDT relays with both normally open (N.O.) and
normally closed (N.C.) contacts
Operating Conditions
Operating Temperature Range: 4ºC to 60ºC
Storage Temperature Range: -40ºC to 50ºC
Calibration Background Gas: Air
HY-ALERTA™ 2600 Includes
Sensor Module
Control Module
Infrared Remote Control
Dimensions
Sensor Module
Width: 13.8 cm (5.4 in.)
Length: 19.3 cm (7.6 in.)
Depth: 13.0 cm (5.1 in.)
Control Module
Width: 13.8 cm (5.4 in.)
Length: 14.3 cm (5.6 in.)
Depth: 14.4 cm (5.7 in.) |
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H2scan’s Series 700 in-line hydrogen-specific process monitors are designed for ease of use, interface flexibility and true process control. The HY-OPTIMA™ 700 is a solid state sensor that can operate in humidity and process gas streams with temperatures up to 100ºC. The HY-OPTIMA™ 700 is ideal for hydrogen production and petrochemical applications where real time measurements of hydrogen can increase process plant efficiencies, improve diagnostics and enhance maintenance management translating into higher profitability.
Performance
Hydrogen Sensitivity Range:
0.5% to 100% hydrogen by volume at 1ATM
Typical Response Time: T90 less than 30 sec
Ingress Protection: IP64 capable
Calibration Interval: 90 days
Product Life Expectancy: 10 years
Accuracy: ± (3.0% of indication + 2000ppm)
Interface Options
Input Voltage Range: 8VDC to 13VDC
Input Current: 0.5A
Analog Outputs: 4-20mA
Serial Communication Options: RS232 or RS422
Relay Contacts: Two programmable 60VDC/1A
SPDT relays with both normally open (N.O.)
and normally closed (N.C.) contacts.
Operating Conditions
Operating Humidity: 0% to 95% RH
Flow Rate: 0.1slpm to 50slpm
Pressure: 0 to 7bar gauge, 0 to 100psi gauge
Process Gas Temperature Range: -20ºC to 100ºC
Operating Temperature Range: -20ºC to 40ºC
Storage Temperature Range: -40ºC to 50ºC
Calibration Background Gas: Nitrogen
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The analyzers of line 4400 are suitable to being installed in rack cabinets 19 " or to panel, being placed on a job plan, and at last easy transportable thanks to a comfortable balancing handle.
They integrate the sensitive units and of control of the analyzers from process in an elegant aluminum structure and supply in continuous, with extreme precision, marks them proporziona them to variable the gaseous one wished. |
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Hydrosteel 6000 is the ultimate portable monitoring tool for sour, HF and high temperature corrosion and diffusible hydrogen damage in steel.
The intrinsically safe instrument is totally non-intrusive and with minimal test surface preparation, and no consumables such as grease required, reliable measurements can be made within a minute.
Measurements can be taken from small pipes and large vessels, at any orientation and at any temperature up to 500 °C (932 °F), with a single probe. |
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For fuel cell applications, pure hydrogen generators are not a very good solution as they are bulky, heavy and expensive. Fortunately a fuel cell can run very good on a hydrogen rich stream rather then pure hydrogen. Therefore a fuel processor consisting of a reforming reactor in combination with a shift and prox are a more favorable solution. Also the low storage density of hydrogen or the lack of sufficient hydrogen infrastructure can be a driving force to choose for a more compact on-board fuel processor. Moreover on-board reforming gives a choice to use several (green) fuels, such as methanol, ethanol, biodiesel and DME. In certain stationary fuel cell applications similar needs for on-board reforming exist.
OEM's who need to adapt their products to the new technology of fuel cells are often not well experienced in fuel cell and reforming technologies. HyGear with its extensive experience in reforming technologies and fuel cell system integration can be a partner in developing the required solutions. |
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... see all the products in the category
Fuel cells
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| AMETEK Western Research® manufactures a range of H2S analyzers for applications including gas sweetening, pipeline quality/custody transfer, synthetic natural gas, blending stations, lean/rich amine and contactor overhead, tail gas treating, and any other process where % or PPM concentrations of H2S must be measured. |
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RAD-CON Inc. specializes in bell-type batch annealing furnaces for the ferrous and non-ferrous, wire and strip industries. RAD-CON is a global leader in bell-type batch annealing technology, with installations worldwide.
RAD-CON has many years experience installing 100% Hydrogen Annealing systems. The RAD-CON design takes full advantage of the benefits of hydrogen, including cleaner product, shorter cycle times, lower utility costs, and greater production per base. RAD-CON is proud of its perfect safety record for hydrogen installations, and credits its redundant safety elements on the equipment and controls.
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