Toxic Gases – Sensor Transmitter / Detectors / Analyzer / Monitroing – Non Ex proof

Toxic Gas detectors / Sensor Transmitters By MSR Germany

Gas detector or sensor transmitter for online, continuous monitoring of all toxic gases as below. These transmitters offer industry standard analog output in current or voltage form, or digital signals like Modbus RTU with RS485 serial interface. Optionally, these are also equipped with potential free relays.

These can be mounted on wall, ceiling, columns, ducts or pipelines. These can be single gas or multi-gas detection transmitters, available with or without onboard display.

Name of toxic gases:

• CO / carbon monoxide
• CO2 / carbon dioxide
• H2 / Hydrogen
• C2H2/ Formaldehyde
• C2H4/ Ethylene
• F2 / Flourine
• Cl2 / Chlorine
• NO2 / nitrogen dioxide
• NO / Nitrous oxide
• SO2 / sulphur dioxide
• H2S / Hydrogen sulphide
• CS2 / carbon sulphide
• HCN / hydrogen cyanide
• HCl / hydrogen chloride
• NH3 / ammonia
• Hydrazine
• Phosphine
• Phosgene
• Chlorine dioxide
• Freon
• Ozone
• Oxygen
• Nitrogen
• Argon, Helium
• Silane
• VOCs, volatile organic compound
• Aerosols

For more details click here

Toxic Gas sensor – online Transmitter / Detector / Analyzer / Monitoring – Explosion proof (ATEX, IECEx, SIL2)

Toxic gas sensors / detector / transmitters / aNALYZER / mONITORING for explosion proof hazardous area (zone 1, 2)

Gas detector or sensor transmitter for online, continuous monitoring of all toxic gases as below. These transmitters offer German industry standard analog output in current or voltage form, or digital signals like Modbus RTU with RS485 serial interface. Optionally, these are also equipped with potential free relays.

These can be mounted on wall, ceiling, columns, ducts or pipelines. These can be single gas or multi-gas detection transmitters.

The sensor instruments are SIL 2 certified to offer best safety.

Name of toxic gases:

• CO / carbon monoxide
• CO2 / carbon dioxide
• H2 / Hydrogen
• C2H2/ Formaldehyde
• C2H4/ Ethylene
• F2 / Flourine
• Cl2 / Chlorine
• NO2 / nitrogen dioxide
• NO / Nitrous oxide
• SO2 / sulphur dioxide
• H2S / Hydrogen sulphide
• CS2 / carbon sulphide
• HCN / hydrogen cyanide
• HCl / hydrogen chloride
• NH3 / ammonia
• Hydrazine
• Phosphine
• Phosgene

For more gas list click here

Combustible Gas Sensor Transmitter / Detector / Analyzer / Monitoring – Explosion proof (ATEX, IECEx, SIL2)

Flammable or Combustible Gas Sensors – detectors or transmitter for online, continuous monitoring in hazardous area (zone 1, zone 2)

Gas detector or sensor transmitter for online, continuous monitoring of all toxic gases as below. These transmitters offer industry standard analog output in current or voltage form, or digital signals like Modbus RTU with RS485 serial interface. Optionally, these are also equipped with potential free relays.

These can be mounted on wall, ceiling, columns, ducts or pipelines.

The transmitters are SIL 2 certified instruments, for better safety.

Name of flammable or combustible gases:

Hydrogen	LPG	Methane
Acetic acid	Acetylene	Acetone
Ammonia	Benzene	Butyl acetate
Cyclohexane	Cyclopentane	Ethane
Ethyl acetate	Ethyl Alcohol	Ethylene
Ethylene oxide	Ethyl Ether	Iso- butane
Iso butyl alcohol	Isopentane	Iso propanol alcohol
Iso propyl Alcohol	Methanol	Methyl ethyl ketone (MEK)
n-butane	n-pentane	n-heptane
n-octane	nitrogen trifluoride	Nonane
Petrol Vapour	Hydrocarbons	Solvent Vapour
Propyl Alcohol	Styrene	Toluene
Trimethylbenzene	Vinyl Acetate	Xylene

For more details click here

Carbon Dioxide (CO2) Sensor / Transmitter / Analyzer / Monitoring – 20000ppm and 0-5% Vol

GasAlarm | ALVI Automation (India) Pvt Ltd (www.alviautomation.com) introduces the all new carbon dioxide (Co2) sensor / Transmitter / Analyzer / Monitoring for competitive Indian Market

Focused on qualitative products and consumer satisfaction with the support of our expert professionals MSR Germany, we are associated with System Integration, exporting and supplying a comprehensive variety of Carbon Dioxide (CO2) Sensor / Transmitter – 20000ppm, 0-5% Vol from Jaipur, Rajasthan, India.

MSR MC2 series CO2 offers industry standard analog (voltage or current) output, suitable for integration with any process signal controller / PLC system or SCADA.

MSR MC2 series CO2 is housed in a polycarbonate UL-V2 certified flame retardant enclosure with IP65 ingress protection. This enables only gas sample to pass through to sensor cell, but no dust and moisture, hence offering long sensor life and high accuracy.

Key Features:

1. Continuous, online monitoring

2. No cross-sensitivity due to background gases

3. No effects of humidity, moisture, temperature, radiation, vibrations etc

4. BMS, PLC integrateable

5. Suitable for any application

6. Long expected life Key Specifications:

7. Measuring range: 0~20, 000 ppm or 0~2% Vol/0-50%

8. Sensor technology: non-dispersive infra-red

9. sensor cell, Gold plated, dual beam

10. Output: linear, proportional analog (4-20mA, 2-10V) standard

11. Optional: RS485 Modbus RTU serial interface using SB2, MSB2 sensor board

12. Operating temperature: 0°C to +50°C

13. Low voltage operation 24V DC

Applications areas:

1. Cold storage like potatoes, apple, mango, kiwi, banana, etc

2. Controlled atmosphere chamber for kiwi, apples

3. Furnace, heated conveyor belts

4. Incinerators, manufacturing units

For more details Click here or please feel free to contact us

GasAlarm (www.gasalarm.co.in) is Restructured as ALVI Automation (India) Pvt Ltd (www.alviautomation.com) under Australasian strategy

• Please note the company GasAlarm(www.gasalarm.co.in) India has been restructured under Australasian strategy with new company ALVI Automation (India) Pvt Ltd(www.alviautomation.com) (Please refrain from dealing with Vinod Gogoriya who is no longer associated with our new company). This company from now onwards will sell, service, maintain all MSR Germany Gas Detection systems, BECK, JOLA, FISCHER and JOVENTA products
• We are the authorized distributor of Germany MSR, FISCHER, JOLA, JOVENTA and BECK. Since all the products are manufactured in Germany hence Quality and Reliability are assured
• All MSR gas monitoring falls under critical safety system for life and plant protection. They need periodic service and calibration and ALVI Automation can assist you in the same

We are the authorized distributors and country representative of few German companies for India and can offer you gas sensor/analyser for all toxic (CO, AIR Quality, H2S, SO2, NO2 etc), flammable gases (H2, LPG, CNG, benzene etc) and oxygen, DP switch for air, water, aggressive media, DP Transmitter for air , water, aggressive media, Electric actuators, Level transmitter for water, diesel, float switch, process instrumentation for diff. pressure, pressure, level, temperature, Humidity etc. both for safe and hazardous area(ZONE 1 and ZONE 2) applications (IEC-EX, ATEX, SIL2 certified) of make MSR/Germany, FISCHER/Germany, JOLA/Germany, JOVENTA/Germany, GREISINGER/Germany and BECK/Germany range of products

ALVI Automation India Pvt Ltd is a Div. of ALVI Technologies Pty Ltd, Sydney-Australia, in operation since 2003. The company also operates under GasAlarm Systems. We are a group of experienced engineers, offering gas detection monitoring and control systems, process instrumentation, measurement & control products and automation solutions. We have been involved in several automation industries in the Australasian region including now in India. Our mission is to grow consistently using the best global technologies in products and services offered to customers. Our aim is to best serve and maintain long term relationships by providing most cost effective appropriate solutions. We are committed towards customer satisfaction through quality products and services. Our vast clientele proves the same. AAIPL derives competitive advantage from its excellent track record, product strategy, and the expertise of its team. The team is a group of more than 15 young dynamic energetic extremely talented industry professionals, who are qualified, trained, motivated and experienced enough to serve our customers well.

 

Our Primary Focus :

• Critical Life Safety, Asset Safety, Asset Enhancement.
• Process control instrumentation, process optimisation most cost effective way.
• Energy saving, green house gas saving.
• Pollution monitoring for better environmental control.
• Industrial and Building Automation for better information flow, control.
• Service, calibration, maintenance for asset protection, improvement (We take pride in this).
• Training to customers, clients for effective use, operation of delivered system (we take pride in this too).

• ALVI Automation (India) Pvt Ltd and Gas Alarm India in association with ALVI Technologies Pty Ltd , Gas Alarm Systems Sydney Australia, Deals with cutting edge Germany range products which includes :
• MSR / Germany  gas sensors for H2, LPG, Hydrocarbons, LEL sensors, Methane, Hydrocarbons, Propane, Butane, LNG, CNG, Acetylene, Ethylene, Diesel fumes, CO2, VOC, SO2, H2S, HCN, HCI, NO, NO2 etc for hazardous(Zone 1 and Zone 2) and safe area application (IEC-EX, ATEX, SIL2, UL, CE certified)
• JOLA Germany range of Liquid spill, liquid level, temperature Instruments with ATEX certified.
• FISCHER / Germany range of Pressure, differential pressure, level, flow monitoring for air and liquid (Aggressive media) with (ATEX, SIL2 certified).
• JOVENTA / Frakta Germany range of damper/Electric actuators.
• GREISINGER / Germany Portable, standalone range of Liquid devices like PH, TDS, Conductivity, dissolved O2 etc and Gas measurement.
• BECK / Germany range of Pressure, Differential Pressure, Switches and Transmitters including for ATEX hazardous area.

 

• All these sensor/Field instruments are all based on German Technology, as all these sensors/Field Instruments are manufactured in Germany, hence quality and reliability are assured.

 

• ALVI Automation (India) Pvt Ltd  (alviautomation.com) is involved in design, engineering, sales, service of Gas Detection Systems, Monitoring and Control Systems, PLC, SCADA, Building Automation, Factory/Industrial Automation, Instrumentation, System Integration and Control Panels. The Gas Sensors/Control modules are made by our associates MSR in Germany.

        The systems find wide application in:

CO/NO/NO2 monitoring in underground car parks for ventilation fan control meeting BCA, Leed/USA, AS 1668.2 (saves 60-80 % energy costs – investment paid back in 3-6 months). Run the fans only when required meeting the regulations, safety standards, energy saving/greenhouse gas saving requirement

Indoor Air Quality Monitoring (VOC/CO2) in buildings and controlling fresh air ventilation intake fans only when required (saves 60-80% energy costs)

Refrigerant Gas Leak Monitoring and alarm systems (R134a, R410a, Ammonia, CO2, LPG etc) for various refrigerants to meet GWP (Global Warming Potential) and AS 1677 refrigeration safety standards

Toxic Gas/Combustible Gas/Oxygen monitoring, control, alarm systems for plant, industry, human safety (Oil/Gas, Petro-chemicals, mining, Power Stations, Chemical Industries, water/waste water treatment plants)

Hazardous Area Gas Detection Systems for Oil/Gas Industries (very good potential in Myanmar) , IEC-Ex, SIL 2 certifiedPollution/Emission monitoring systems (some typical parameters are CO, CO2 etc)

Pollution/Emission monitoring systems (some typical parameters are CO, CO2 etc)

On Line, continuous gas monitoring analyzers for CH4, CO2 and some other parameters for bio-gas, land-fill gas, methane drainage (Coal Bed Mining Methane)

Fumigation gases monitoring in grain silos (phosphine, methyle bromide etc)CO2 monitoring in oil/gas CO2 capture and storage

• In addition under ALVI Automation/GasAlarm, we provide instrumentation solutions like :
  1. Pressure, differential pressure, level, flow, volume Monitoring.
  2. Liquid leak, spill, level detection and monitoring including hydrocarbon spill on water.
  3. MSR Traffic – car parking, traffic navigation systems.(msr-traffic.de)

 

• Our valuable customers are Siemens-India, Johnson Controls-India, Honeywell India, Schneider electric India, Adani-group, BASF, L&T, BHEL, HCPL-HMEL, HONDA, Denso-International, Bluestar, Greenheck etc are regularly buying from ALVI Automation (India) PVT LTD with that we are covering all industry segments, oil&gas, petro-chemical, chemical, power, water/waste water, landfills, mining, food & beverage, laboratories, refrigeration industries and Defence Organizations. We take pride in meeting customer.

SERVICE & TRAINING :

AAIPL provides information to engineers, professionals and everybody who is interested in Instrumentation, Process automation and control.

We provide services & training on Process Automation and Control, like DCS (Distributed Control Systems), BMS (Building Management System), PLC (Programmable Logic Controller), Batch Control, PID, Advanced Control, Measurement, HMI (Human Machine Interface), Measurement, Process Instrumentation, Industrial Automation Training. Our services programs are designed to minimize downtime, delays and unforeseen expenditures. With a comprehensive maintenance we make sure your instruments are always in top operating order. This gives you the peace of mind.

 

AFTER-SALES SUPPORT :

Maintenance is as important for instruments as for relations. AAIPL understands the importance of service required after sales to maintain the product performance. Our business has been built around providing the highest quality products and services. Our team is ever ready to serve the customers at their back and call. We can ensure a prompt service, immediate response and quick access. We pride ourselves on our product selection, expertise, customer service and technical support.

For more information please do not hesitage to contact us

Proportional Ball Valves Actuator Model no: BMS1.1

As the process industry continues to achieve more efficient and productive plant design, plant engineers and technicians are faced, almost daily, with new equipment designs and applications. One product, a valve actuator, may be described by some as simply a black box, having an input (power supply or signal), an output (torque), and a mechanism or circuitry to operate a valve. Those who select control valves will quickly see that a variety of valve actuators are available to meet most individual or plant wide valve automation requirements. In order to make the best technical and economical choice, an engineer must know the factors that are most important for the selection of actuators for plant wide valve automation. Where the quality of a valve depends on the mechanical design, the metallurgy, and the machining, its performance in the control loop is often dictated by the actuator.

The decision to automate a valve is usually based on one or all of the following considerations.
• Safety
• Reliable operation
• Control and process system performance
• Inaccessible or remote valve location
• Cost
• Excessive valve torque
• Emergency response and whether it is fail-safe

Application
These electric actuators are designed for operating JOVENTA JV Ball Valves, by the means of the ZAK 2 linkage Kit.

Features
■■ DC 0(2)…10 V or 0(4)…20 mA control signal
■■ Up to 5 actuators in parallel operation possible
■■ Plug-in terminal block connection
■■ Simple mount on valves with ZAK2 linkage kit
■■ Selectable direction of rotation
■■ Manual release button
■■ 2 adjustable auxiliary switches
■■ Automatic shut-off at end position
(overload switch)

For more details Click here or feel free to contact us

Best Technology, Best Quality, Advanced Features & Low Price Sensor For Gas Leak Detection ..!!

Alvi-India in association with Alvi-Australia & MSR-Germany pleased to introduced his best quality , best German technologies , advanced features and low price sensor in Indian market.

We are pleased to say that we are experts in all type of gas leak detection & control system.

We are dealing with all type of Toxic and Combustible Gas Leak Detector/Sensor Transmitter and controlling devices for building as well as industrial & hazardous area to save life  energy .

 

For more details and enquiry please contact us in : info@alviautomation.com

 

JOVENTA Special Electric Damper Actuator Model no : SM1.10

ALVI Automation (India) Pvt Ltd (www.alviautomation.com) in association with ALVI Technologies (www.alvi.com.au) Pty Ltd introduces JOVENTA special series Electric Damper Actuator Model no: SA1.10

The JOVENTA SPECIAL electric damper-actuator series is designed to operate air dampers in ventilation and air conditioning systems. The compact design and universal adapter fitted with limitation of rotation angle make this JOVENTA actuator highly versatile.

Key Features :

• Torque: 16 Nm
• Running time: 16 sec
• The angle of rotation/working range: 90° (93° mech.)
• Supply voltage: 24V DC/AC
• DC0…10V or 0…20 mA control
• Load-independent running time
•  Up to 5 actuators in parallel operation possible
• Plug-in terminal block connection
•  Simple direct-mount with universal adapter on Ø 10 mm to 20 mm shaft or square shaft from 10 mm to 16 mm. 48 mm minimum damper shaft
  length
• Selectable direction of rotation
•  Limitation of rotation angle
•  Manual release button
•  2 adjustable auxiliary switches See back page for settings
•  Automatic shut-off at end position (overload switch)
• Energy saving at end positions
•  Actuators available with1m halogen-free cable
• Customized versions available
•  Devices meet CE requirements

For more details Click here or feel free to Contact us

Hydrocarbon Sensor Transmitter

Combustible/Toxic Gas detectors / Sensor Transmitters

MSR Germany Gas detector or MSR Germany  UL, SIL2, Atex, Flame proof  and CE Certified  sensor transmitter for online, continuous monitoring of all toxic gases as below. These transmitters offer industry standard analog output in current or voltage form, or digital signals like Modbus RTU with RS485 serial interface. Optionally, these are also equipped with potential free relays.

These can be mounted on wall, ceiling, columns, ducts or pipelines. These can be single gas or multi-gas detection transmitters, available with or without onboard display.

Please Find Technical Datasheet of Hydrocarbon Sensor Transmitter :                                                   Hydrocarbon Datasheet

Carbon Monoxide Sensor with enhanced CO radical detection capability

Make :- MSR Germany

Model No:- MA-0-1110-F-B

Area Of Application:-

Ideal for
Parking area, garages, chiller rooms and heating,
as well as dusty & humid area like pharmaceuticals, coal mine,
conveyor belt, cement plant, thermal power plants, flour mills,
powder industries.

Key Points :- 

• Carbon Monoxide with enhanced CO radical detection capability
• Very early smouldering fire and smoke detection.

SPECIFICATIONS:- 

• Sensor Model: – MA-0-1110-F-B
• Measuring Gas:  Carbon Monoxide, Enhanced CO+ radicals Detection.
•  Sensor element (cell):- Electrochemical, Electrolyte type Gel based Plug-in type Sensor transmitter.
•  Measuring Range: – 0-300 ppm (Standard)
• Connection: – Two wire sensor
• Response time T₉₀:-  ≤ 50 Sec
• Warm-up time (First Time):- ≤ 3 Min.
• Protection Class: IP 44
• Stability & resolution: – ± 3 ppm
• Sensor life expectancy:- ≥ 5 years
• Calibration Interval: 1 Year.
• Sensor Coverage Area: – 700 m² to 750m², ideal condition.
• Humidity non-condensing : 15-90% RH
• Working temperature :–10°C to 50°C
• Power supply:-  18 – 28 VDC ( Overload protected)
• Analog output signal :- Standard: 4-20 mA Linear Output
• Flammability: – UL 94: VO
• Warranty: 12 Month only on manufacturing defects

For Technical Datasheet please click : CO Sensor Datasheet

MSR-Traffic offers intelligent parking guidance systems with single space detection for indoor and outdoor use

ALVI- India in association with ALVI-Australia and MSR-Traffic offers innovative sensor technology for counting and single space detection of vehicles in indoor and outdoor areas. Motorists are quickly guided to the next free parking space via a dynamic traffic control system. The connection to apps or existing control systems is possible as well. This doesn’t only increase the quality of life and the attractiveness of cities, but is also of great advantage from an economic point of view.

Shopping malls and airports have been offering their customers parking guidance systems as a special service for a long time – now this trend also continues with hotels.
Each holiday or business trip begins with the booking and the arrival itself. Hotels can only have a small influence on these two points, since many guests book the hotel rooms on independent travel portals and travel for example with their own car.
But as soon as the guest arrives at the hotel’s premises, the part begins that the hotel owners can influence significantly. In addition to the external appearance, which customers often consider as the reflection of the hotel’s profile, the stress-free arrival plays a particularly important role.
If you as a guest have already been stressed by the search for a parking space, the stay begins with a first negative experience. The time the guest had to spend to find a free gap, he would probably have used on the hotel terrace with a glass of wine.
Parking guidance systems with single-space sensors exactly solve this problem. When a parking space is used, the sensor (for example, mounted below the ceiling or outdoors in the ground) signals the data to a controller and a dynamic display shows in real-time where and how many parking spaces are free.

However, the systems of MSR-Traffic are not only suitable for large parking garages – equipping small parking spaces also makes sense. The investment in a parking guidance system is particularly worthwhile if the parking spaces are poorly visible or the possibilities of reversing are inadequate at full occupancy. It may also be important sometimes that every single parking space has to be used to offer all hotel guests the promised parking space. If, for example, the customer does not see that there is still a parking space near the entrance, he unnecessarily heads to a neighbouring street in order to park there at the edge.
With the help of sensor technology, however, not only the guest knows where and how many parking spaces there are – the management can also draw their own conclusions from the data from afar. The MSR-Traffic software provides interesting features in terms of:

•   Statistics of the last few weeks / months / years
•   Locating long-term parkers
•   Reservation of parking spaces
•   Signalling at full occupancy

Continue reading “MSR-Traffic offers intelligent parking guidance systems with single space detection for indoor and outdoor use”

Carbon Monoxide Sensor with enhanced CO radical detection capability

Make :- MSR Germany

Model No:- MA-0-1110-F-B

Area Of Application:-

Ideal for
Parking area, garages, chiller rooms and heating,
as well as dusty & humid area like pharmaceuticals, coal mine,
conveyor belt, cement plant, thermal power plants, flour mills,
powder industries.

Key Points :- 

• Carbon Monoxide with enhanced CO radical detection capability
• Very early smouldering fire and smoke detection.

SPECIFICATIONS:- 

• Sensor Model: – MA-0-1110-F-B
• Measuring Gas:  Carbon Monoxide, Enhanced CO+ radicals Detection.
•  Sensor element (cell):- Electrochemical, Electrolyte type Gel based Plug-in type Sensor transmitter.
•  Measuring Range: – 0-300 ppm (Standard)
• Connection: – Two wire sensor
• Response time T₉₀:-  ≤ 50 Sec
• Warm-up time (First Time):- ≤ 3 Min.
• Protection Class: IP 44
• Stability & resolution: – ± 3 ppm
• Sensor life expectancy:- ≥ 5 years
• Calibration Interval: 1 Year.
• Sensor Coverage Area: – 700 m² to 750m², ideal condition.
• Humidity non-condensing : 15-90% RH
• Working temperature :–10°C to 50°C
• Power supply:-  18 – 28 VDC ( Overload protected)
• Analog output signal :- Standard: 4-20 mA Linear Output
• Flammability: – UL 94: VO
• Warranty: 12 Month only on manufacturing defects.

 

Toxic and Combustible Gas Leak Detection in Industries, Hotels, Hospitals and Plant.

Toxic Gas detectors / Sensor Transmitters

MSR Germany Gas detector or MSR Germany  UL, SIL2, Atex, Flame proof  and CE Certified  sensor transmitter for online, continuous monitoring of all toxic gases as below. These transmitters offer industry standard analog output in current or voltage form, or digital signals like Modbus RTU with RS485 serial interface. Optionally, these are also equipped with potential free relays.

These can be mounted on wall, ceiling, columns, ducts or pipelines. These can be single gas or multi-gas detection transmitters, available with or without onboard display.

MSR GERMANY SENSOR TRANSMITTER AVAILABLE FOR toxic gases:

• CO / carbon monoxide
• CO2 / carbon dioxide
• H2 / Hydrogen
• C2H2/ Formaldehyde
• C2H4/ Ethylene
• F2 / Flourine
• Cl2 / Chlorine
• NO2 / nitrogen dioxide
• NO / Nitrous oxide
• SO2 / sulphur dioxide
• H2S / Hydrogen sulphide
• CS2 / carbon sulphide
• HCN / hydrogen cyanide
• HCl / hydrogen chloride
• NH3 / ammonia
• Hydrazine
• Phosphine
• Phosgene
• Chlorine dioxide
• Freon
• Ozone
• Oxygen
• Nitrogen
• Argon, Helium
• Silane
• VOCs, volatile organic compound
• Aerosols

Continue reading “Toxic and Combustible Gas Leak Detection in Industries, Hotels, Hospitals and Plant.”

Difference between UEL and LEL

Understanding Flammability and Flammable gases:

 

Mixtures of dispersed combustible or flammable materials (such as gaseous or vaporized fuels, and some dusts) and air will burn only if the fuel concentration lies within well-defined lower and upper bounds determined experimentally, referred to as flammability limits or explosive limits. Combustion can range in violence from deflagration, through detonation, to explosion.

Flammability limits vary with temperature and pressure, but these are normally expressed in terms of volume percentage at 25 °C and atmospheric pressure. These limits are relevant both to producing and optimising explosion or combustion, as in an engine, or to preventing it, as in uncontrolled explosions of build-ups of combustible gas or dust. Attaining the best combustible or explosive mixture of a fuel and air (the stoichiometric proportion) is important in internal combustion engines such as gasoline or diesel engines.

Lower explosive limit (LEL)

Lower explosive limit (LEL): The lowest concentration (percentage) of a gas or a vapor in air capable of producing a flash of fire in presence of an ignition source (arc, flame, heat). Many safety professionals consider this terms same as the lower flammable limit (LFL). At a concentration in air lower than the LEL, gas mixtures are “too lean” to burn. Methane gas has an LEL of 5.0%. If the atmosphere has less than 5.0% methane, an explosion cannot occur even if a source of ignition is present.

Upper explosive limit (UEL)

Upper explosive limit (UEL): Highest concentration (percentage) of a gas or a vapor in air capable of producing a flash of fire in presence of an ignition source (arc, flame, heat). Concentrations higher than UFL or UEL are “too rich” to burn.

Hence, safety systems and gas monitoring systems are designed to monitor and keep concentration of flammable gases below their respective LEL levels, or below 100% LEL. Therefore, gas detectors or system for flammable gases are designed for monitoring 0% LEL to 100% LEL.

Smoke Sensor : Early Fire Detection ..!

Gas Alarm – India in association with Gas Alarm – Australia and MSR Germany pleased  offers world-class solutions and products for earliest and accurate fire and smoke monitoring, without giving any false alarms. These products offer warning signals better and earlier than costliest system like VESDA, optical sensors etc.
Very Early Fire & Smoke Detector, Alarm Gas Alarm offer one of the best smoke & fire detector which can be installed at any environment eg. coal mines, flour mills, pharma, clean rooms, oil & gas, etc. Early Fire detector / transmitter (VEFSA) is designed for detection of earliest sign of smoke & fire, and hence thereby offering better warning detection system, better than VESDA. Using unique detection technology and method, VEFSA offer best fire & smoke detection, without false alarm. These can be implemented at any location with quite easy. VEFSA is compatible for integration to any fire panel and alarm system, be to Siemens, Honeywell, GE etc. VEFSA works in environment and application where none of the conventional smoke & fire detection can work. VEFSA, though being more effective than some of the expensive solutions, it even more easy to implement and integrate, without having much design knowledge.

As VEFSA provide earliest signs of smoke & fire, it buy the critical time needed to investigate an alarm and initiate an appropriate response to prevent injury, property damage or business disruption. VEFSA offer various levels of integrity monitoring to ensure an alert is raised at any time, depending upon criticality of the application and environment. This is not the case with passive devices that are generally only electrically monitored with no ability to determine if smoke can actually reach the detection element. VEFSA offer dual level of alarms which are configurable. This VEFSA to provide very early warning of an event, prompting investigation at the earliest smouldering stage of a fire when it is easily addressed. Other alarm levels may be configured to provide fire alarm inputs to fire systems as well as releasing suppression systems. VEFSa alarm sensitivities are configurable and can be programmed to levels ranging from thousands of times more sensitive than a conventional detector, to much less sensitive.

VEFSA can be implemented across a wide (all) range of industries and applications, with no effect of dust, moisture, vibration, temperature, weather, pressure etc:

• Accommodation (Apartments, Hotels, Shops and Offices)
• Datacentre
• IT facilities
• Clean Rooms
• Cold Storage
• Data & Telecom
• Hospitals and Healthcare
• Marine
• Nuclear Facilities
• Oil & Gas
• Power Generation
• Transportation
• Wind Power Generation
• Warehousing
• Pharmaceutical
• Chemical, petrochemicals
• Coal mines, bunker, hopper, conveyors, handling plants
• Defense, strategic facilities
• Underground mines
• Automobile
• Cement, manufacturing

 

For any assistance please feel free to contact us : info@alviautomation.com