Sensor : Hazardous Gas Leak Detection

GasAlarm – India in association with ALVI – Australia pleased to offer all types of environmental hazardous gas leak detection sensor transmitter with following description and features:

Microprocessor based gas sensor with 4 – 20 mA / RS485-Modbus output
signal, alarm and fault relays (all SIL2 certified) for monitoring the ambient air
to detect oxygen and toxic gases and vapors by means of an electrochemical
sensor element (el.ch.) or an infrared sensor element. The calibration of
sensors without LCD display is carried out via the calibration device Cal PX or
the PC software PC-Soft 80. Sensors with LCD display have an integrated
calibration routine that is started from the outside by a permanent magnet
without opening the housing. In case of an alarm or a fault the backlight of
sensors with LCD display changes from green to red.
APPLICATION
The PolyXeta®2 sensor is used in industrial areas like oil/gas industry, biogas plants, petrochemical
industry, power plants etc. in Ex-Zone 1. The PolyXeta®2 sensor is also suitable for commercial areas
like gas transfer stations etc. With the 4 – 20 mA / RS485-ModBus output signal the sensor is
suitable for connection to the PolyGard®2 gas controller series by MSR-Electronic, as well as to any
other controllers or automation devices. Optionally, the PolyXeta®2 sensor is also available with LCD
display and relay output.
FEATURES
 ATEX and IEC Ex certificates MSR-Electronic for electrical Ex protection
 ATEX metrical test & SIL2 safety functions 4 – 20 mA, RS485 and relay
 Type “Ex d” with flame-proof enclosure
 Continuous monitoring
 Microprocessor with 12 bit converter resolution
 Self-monitoring system
 Easy calibration
 Calibration service by exchanging the sensor head
 Proportional 4 – 20 mA output
 Serial interface to the control center
 Reverse polarity protection
 Overload protection
 LCD display with status LEDs (optional)
 Alarm and fault signal relay (optional)

For more queries  please contact us : info@alviautomation.com

Digital Differential Pressure Transmitter / Switch with 3½ digit LED display

We are pleased to offer Digital Differential Pressure Transmitter / Switch with 3½ digit LED display and pleased to inform you that all these product support and application support brought to you by ALVI Technologies – Sydney, Australia and ALVI Automation  Jaipur – India.

• Display and switching device for measurement of differential pressures with mainly neutral liquid and gaseous media.
  Areas of Application:
•  Filling level measuring technology for technical gases
  Design and Mode of Operation.
• For monitoring the status of cryogenic gases like Helium, Nitrogen, Oxygen, FISCHER Differential Pressure Transmitter finds wide application
• Do you have gas mixing system why not use FISCHER DE58 for monitoring the mixing ratios
• Yet another application of FISCHER DE58 Differential Pressure Transmitter for Marine Gas, Oil Bulk Carriers
• FISCHER DB58 also used widely in welding, LASER cutting, Metal Fabrication, Gas Blanketing, Cutting and purging machines and applications

Main Features
• Robust and resistant to overpressure
• Maintenance-free through wear-free inductive pickup
• Switchable pressure units
• Optional signal output with possibility of charac-teristic curve spread and reversal with any off-set
• Characteristic curve implementation via table with max. 30 measuring points
• Complete adjustment of all parameters and measuring point protocol possible through op-tional PC adaptor EU03
Typical applications
• Filling level monitoring of tank containers for liquefied technical gases (N2, O2, Ar and CO2).
• Filling level monitoring of mini tank systems.

Design and Mode of Operation

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Air Quality Monitoring For Indoor and Outdoor Purpose

ALVI Automation (India) Pvt Ltd in association with ALVI Technologies Pty Ltd takes pride in introducing cutting edge MSR Germany gas detectors for Air Quality Monitoring for Indoor and Outdoor Purpose.

The air pollution caused by exhaust gases from automobiles has become a critical issue. In some regions, fossil fuel combustion is a problem as well. The principal gases that cause air pollution from automobiles are nitrogen oxides, NOx (NO and NO2), and carbon monoxide (CO). Because NOx gases with sulfur oxides (SOx) emitted from coal-fired plants cause acid rain and global warming and produce ozone (O3) that leads to serious metropolitan smog from photochemical reaction, they must be detected and reduced

In addition, as greater amounts of oil organic compounds are currently being produced by applied construction materials and households, the number of people who develop various symptoms after moving into a new apartment (e.g., tickle, vertigo, headache, skin trouble) is
increasing. The principal gases that cause this phenomenon (called “sick-building syndrome”) are formaldehyde (HCHO) and volatile organic compounds (VOCs). Especially, formaldehyde is the most dangerous among indoor pollutants as it could harm all kinds of organisms. Considering these, the allowed concentration of formaldehyde in the
Netherlands and Germany are only 0.1 ppm. Therefore, gas sensors with excellent reactivity and stability are needed. therefore the necessity of MSR Detectors in a must for all Indoor and outdoor applications which includes gases like : CO, CO2, NOx, SOx, VOC, O3, VOC, CH4, NH3, CH2O, O2 etc.

Description : 

• Digital measurement value processing incl. temperature compensation
• Internal function control with integrated hardware watchdog
•  Data / measured values in μC of the sensor unit, therefore simple exchange uncalibrated <> calibrated
• High accuracy, selectivity and reliability
• Low zero point drift
• Long sensor life time
• Hardware & software according to SIL2 compliant development proces
• Easy maintenance and calibration by exchange of the sensor unit or by comfortable on-site calibration
•  4 – 20 mA (or 2 – 10 V) analog output with selectable signal output for special mode, fault etc.
•  Reverse polarity protected, overload and short-circuit proof
•  Housing for integration of the sensor unit
•  IP 65 version
• The sensor transmitter is housed in a Rugged enclosure (A housing or D housing) which can withstand Dust, Water splash, vibration knocks. It can withstand Harshest outdoor installation requirement including Mining, Defense and Marins applications.
• Conformity to

o EN 50271
o EN 61010-1
o ANSI/UL 61010 1
o CAN/CSA-C22.2 No. 61010-1
o EN 50104 (for O2)

For for information contact us

Nuclear KTA Approved Diaphragm Pressure Gauge MA15

ALVI – India in association with ALVI- Australia and Fischer Germany takes pride to offer Pressure measurement under severe conditions Corrosion-resistant materials for aggressive media and aggressive environment in India.

Key Features : 

Corrosion-resistant
High overpressure protection
Suitable for open-air installation
Connection flanges conforming to
standards are available for viscous
media or media containing solids.

Measurement ranges:
0 … 25 mbar, 0 … 25 bar
Measurement accuracy:
±1.6 % resp. ±2.5 %
Adm. media temperature: +100°C
Display accuracy: Class 1.6 / class 2.5
for devices with PTFE-protective film
Overpressure protection:
5-fold, max. 40 bar
Measurement display:
Bayonet ring casing Ø 100 or 160 mm
Safety casing Ø 100 or 160 mm

For More Details Please Contact us on : info@alviautomation.com

Fischer Germany Nuclear Standard KTA Approved Absolute Pressure Gauge DA55

ALVI – India in association with AVI – Australia takes pride to offer Absolute manometer for aggressive and non aggressive gaseous and
liquid media – with Nuclear Safety and standard commissions KTA Approved.

Additional equipment on request:
Liquid filling
Contact devices
Execution for oxygen applications
Measurement ranges:
0 … 25 mbar abs, 0 … 6 bar abs
Measurement accuracy:
±1.6 % resp. ±2.5 %
Adm. media temperature:
–10°C … +80°C
Housing:
NG100 or NG160 of 1.4404
Media-contacting parts:
of 1.4404 or Hastelloy C 276

For More details Please contact us: info@alviautomation.com

Differential Pressure Switch for Water Chiller Plant & Industries

The differential pressure switch type DS34 is
suitable for all non aggressive gases and fluids, as they are: service water, heating water, neutral gas, oil, oily water…!
Applications can be named in:
• filtration systems
• process technique
• machine building
Function
The differential pressure switch is build
around a rugged, reliable membrane sensing
system.
It is suitable to detect vacuum, over pressure
and differential pressure.
In every application the switch is working on
the same principle. The pressure or differential
pressure to be measured generates a force
on the membrane. This force moves the
membrane in one direction against the
measuring range spring. A plunger fitted to
the membrane operates a microswitch when
attempting the adjusted switch point.
The switch point is adjusted by means of an
indicating dial.
Technical Data DS34
Pressure range 0 – 0,6 bis 0 – 6 bar
Max. operating pressure 16 bar (overpressure and vacuum proof up to 16 bar)
Max. environmental temperature -10…70°C
Max. medium temperature + 80°C
Pressure chamber Grivory
Membrane Stainless steel ANSI 301
Pressure connections Thread G1/8 female; other see ordering code
Mounting Mounting base upon request
Electrical connection pre-wired cable 3×0,5mm²
Switch point 10-100% of range, continously adjustable
Switch point accuracy 3% FS
Contact Micro switch, hysteresis 5% FS
Max. load of micro switch
Umax 250 V AC 30 V DC
Imax 3 A 0,4 A
Pmax 250 VA 10 W
Protection class IP65

Fischer Pressure Transmitter ME05 For Nuclear Power Plant

Ethylene Sensor Transmitter For Fruit Ripening Chamber/Cold Storage

Very Early Fire & Smoke Detection Sensor Transmitter / Detector

Model: VEFSA
Very Early Fire Detector / Transmitter is designed for detection of smoke/fire radicals (products of combustion, spontaneous combustion of coal) which constitute the earliest stage of smoldering fire. Any smoldering fire (wood, coal, electrical simulation etc) produce gas radicals as very early sign of fire.

STAGE OF FIRE:

• 1st stage: Gas Radicals (host of gases are generated depending on the application)
• 2nd stage: Non-Visible smoke (air aspirated smoke analyser like VESDA)
• 3rd stage: Visible smoke (picked up by smoke detectors: Ionisation or optical)
• 4th stage: Red Hot: CCTV, Temp sensor etc.
• 5th stage: Flame (Flame detectors like UV/IR, IR3 etc.)

Detection by VEFSA: 1st stage of fire / smoke, to give earliest sign of fire and smoke, even before invisible smoke occurs

APPLICATION:

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Fischer DP Gauge for Process, Chemical Application – DA03

Propane Sensor, Transmitter, Analyzer

Gas Alarm India offer propane sensor transmitter / detector/ analyser from MSR Electronic, Germany with following features:

• Measuring range: 0-100% LEL (lower explosive limit), 0-100% Vol (analysis)
• Technology: Pellistor / catalytic bead (flammability monitoring), Infra-red
• Output: 4-20mA, 0-10V, RS485 modbus, Lon, BacNET
• Enclosure: IP44, IP54, IP65
• Certificate: UL 61010, UL 2075, ATEX EExd, ATEX EExn, CE
• Mounting: wall mountable, duct mountable
• Installation area: safe area, hazardous area, explosion-proof

Application areas: gas bank, bottling plant, booster station, gas store, pharmaceutical, cylinder store, gems processing, heat processing, furnace, engine room, testing rooms, automobile, defence, warship, annealing plant, chemical plants, oil & gas, fire safety, domestic gas pipeline, kitchen, refinery, food processing, cement, bearing, machine industry, swimming pool, combustion area, bakery, commercial, hotels, mines, confined space, gasifier, stockyard, oil wells, biogas plant, landfill, boiler plant, thermal power plants etc
Features:

• reverse polarity protected
• poisoning protected
• low flashing temperature for longer sensor
• modular architecture

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Sulphur Hexafluoride (SF6) Sensor Transmitter

Gas Alarm India offer Sulphur Dioxide (SF6) sensor transmitter / detector/ analyser from MSR Electronic, Germany with following features:

• Measuring range: 0-2000ppm
• Technology: Infra-red
• Output: 4-20mA, 0-10V, RS485 modbus, Lon, BacNET
• Enclosure: IP65
• Certificate: UL 61010, UL 2075, ATEX EExd, ATEX EExn, CE
• Mounting: wall mountable, duct mountable
• Installation area: safe area, hazardous area, explosion-proof

Application areas: power plant, switchgear, gas insulated switchgear, GIS, hospitals, oil & gas, landfill, chemical, semiconductor, pharmaceutical, chiller plant, cylinder store, furnace, steel, engine room, testing rooms, automobile, thermal power plant, defence, warship, formulation plant, food processing, cracking unit, refinery, storage plants

Features:

• Reverse polarity protected
• Dual beam, gold plated infra-red sensor cell
• Poisoning protected
• Capable of mounting in any direction, with no effect on performance, output and life of these sensors (no orientation problems)
• Modular architecture
• Manual calibration
• Expected life > 15 years
• Low response time
• Sleep protection

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Chlorine Dioxide Gas Detector, Transmitter, Analyzer

Gas Alarm India offer Chlorine dioxide (Halogen) sensor transmitter / detector/ analyser from MSR Electronic, Germany for toxicity monitoring with following features:

• Measuring range: 0-1ppm
• Technology: electro-chemical / galvanic , diffusion type
• Output: 4-20mA, 0-10V, RS485 modbus, Lon, BacNET
• Enclosure: IP44, IP54, IP65
• Certificate: UL 61010, UL 2075, ATEX EExd, ATEX EExn, CE
• Mounting: wall mountable, duct mountable
• Installation area: safe area, hazardous area, explosion-proof

Application areas: chemical plant, chlorine dioxide generator, bleaching plant, drinking water purification, textile, nuclear, waste water treatment, steel, processing, thermal power plant, defence, warship, bottling plant, sewage treatment

Key features:

• Reverse polarity protected
• Poisoning protected
• Gel based electrolyte electro-chemical sensor cell to avoid any mounting preference
• Modular architecture
• Manual calibration
• Expected life > 3 years
• Low response time

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Bromine Sensor, Transmitter, Analyzer Continuous Monitoring

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Non-Conductive Liquid Leak Detection

Non-Conductive Liquid Leak Detection for fluids such as petrol, diesel, kerosene etc. is often required in many industrial and environmental applications. Being non-conductive in nature, to sense and detect the presence of leak is a special challenge. ALVI proudly presents Jola OWE2/C that can be used in variety of Non-Conductive Liquid Leak Detection applications and at the same time can minimize health, safety and environmental risks.

Jola OWE2/C is designed to signal the presence of non-conductive medium, caused for example, by burst pipes.

Most of the storage facilities in process industries, where spills are common, use bund as a part of spill containment system. Bund is a constructed retaining wall around storage providing a barrier to an unintended escape of material until remedial action is taken. For an effective and early detection, selecting a right sensor and positioning it at a right measurement point is quite important.  Jola OWE2/C detectors are placed under the tanks or pipes or on the bund floor. It can sense and detect the layer of about 2 to 3 ml!! An alarm activation is required to trigger further corrective action. Jola OWE2/C must be used with Jola Leckmaster 101 switching relay module. The varios operating status on the switching module are shown by coloured LEDs. Thus an early detection of the spill/leakage can trigger timely countermeasures avoiding any further damage

Please click here top download the datasheet.