Digital differential pressure transmitter with 4-digit colour change LCD – DE39

ALVI – India in association with ALVI – Australia takes pride to offer Display and switching device for Differential pressure of gaseous and fluid media.
Typical applications
• Differential pressure measurements in heavily soiled media
• Filter monitoring
• simple pump control systems
• Pump, compressor monitoring
Design and mode of operation
The device is based on an electronic evaluation circuit that analyses the measuring signals P+ and P- of two integrated ceramic pressure transmitters. The signals are digitalised and sent to the analysis unit for further processing. Both signals can be shown separately.
The main feature is the calculation of the differential pressure. The analysis allows two independent switch points to be set and makes two programmable output signals available. The first output signal (channel 1) is proportional to the differential pres-sure and can be influenced by means of rooting or a table. The second output signal (channel 2) is proportional to the pressure and can be assigned optionally to the signal P+ or P-.
The nominal pressures of the integrated sensors and the differential pressure measuring range are set permanently ex-works and stated on the  type plate.

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Liquid Level Detection – Well Probe.

ALVI India in association with ALVI Australia takes pride to offer Fischer – NB10 Well probe for liquid level detection.

Application

Measuring probes for hydrostatic measurement of fluid fill-levels. Some examples of typical applications are water or fluid fill-level measurements in
• Wells
• Drill holes
• Wastewater systems and
• Containers
Most Important Features
• High measuring accuracy
• Low hystersis
• Corrosion-resistant materials
• Integrated measurement converter
• Measured values stable over time

Design and Principle of Operation
This measuring probe is designed around a highly sensitive pressure sensor with a silicon membrane-measuring element.
A DMS resistance bridge is attached to the rear of this membrane using a thin-film method. The well probe is equipped with an indirect hydraulic pressure sensor in order to guarantee the system-inherent dead space latitude. The pressure sensor is isolated by an elastic membrane from the medium to be measured. The volume between the membrane and the pressure sensor is filled completely with a transfer fluid. When pressure is applied this silicon membrane deforms in the elastic region, altering the resistance of the resistance bridge in a response linear to the measuring pressure. These changes in resistance are converted by electronics built into the device into standardized electrical signals.

Electrical Connection
State connecting cable (length) in order text
Operating Voltage
24 V DC
Installation Instructions
The connecting cable can be used up to a depth of 100 m without requiring pull relief.
Smallest cable bend radius: 120 mm; Accessory: Cable holder Model: MZ81

Continue reading “Liquid Level Detection – Well Probe.”

Capacitive Level Sensor for Conductive Liquids

Product Description

Vacuum Pressure Gauge/Switch

ALVI AUTOMATION (INDIA) PVT LTD a div of ALVI TECHNOLOGIES PTY LTD also trading as Gas Alarm Systems is honor to present FICHER Vacuum Pressure Gauge/Switch

Over pressure and vacuum proof contact pressure gauge for control and supervising purposes in vacuum processes.

Application Field :

• Winning of drinking water, water economy.
• Process Technology
• Terotechnology
• Pneumatic transporter

For more information click  here

Clean Room Technology for applications in safety laboratories and in areas protected against contamination

Clean rooms may be found in many areas of industry as well as in clinical environments – for example, in the pharmaceutical industry, the semiconductor and solar power industries, aerospace engineering, nanotechnology, medical engineering, research, pharmacies, etc. Clean rooms are installed anywhere where products need to be protected against contamination from airborne particles.

In order to separate clean rooms from surrounding rooms and to prevent the infiltration of particles, suitable ventilation systems are installed which create a pressure cascade, depending on the classification of
the clean room.

As far as it is required by the product, the room temperature and / or the room air humidity levels may also be measured, recorded and applied as a control variable for the building control system.

The measuring instruments from FISCHER provide the measured values required at the highest degree of precision and with long-lasting repeatability.

Technical Description : 

For more details click here or contact us

Custom Built FISCHER Differential Pressure Switch model no DS1302VAYYYD0064

ALVI  Automation – India (http://www.alviautomation.com) offers Custom Built FISCHER/Germany Differential Pressure Switch model no DS1302VAYYYD0064

Principles of Operation

This differential pressure instrument is based on a rugged and uncomplicated diaphragm movement, suitable for overpressure, partial vacuum and differential pressure measurements. The system’s operating principle is identical for all applications of this type. In a state of balance, forces of springs on both sides of diaphragm are balanced. The Pressure or differential pressure to be measured creates an unbalanced force of springs for measuring range until a new balance is reached. When subjected to excessive pressure, the diaphragm rests on metal supporting plates. A centre-mounted tappet transfers motion of the diaphragm system to indicator movement and to initiating elements of the microswitches.

General Specifications : 

• Measuring range : 0… 400 mbar up to 0… 25 bar (see ordering code)
• Nominal pressure : 25 bar
• Max. static operating pressure : acc. to measuring range (see ordering code)
• Max. pressure load : one-sided overpressure protected up to nominal pressure on (+) – and (-) side of diaphragm, partial vacuum protected
• Perm. ambient temperature : -10… +70°C
• Perm. medium temperature : 70°C
• Protection class : IP 54 acc. to DIN EN 60529
• Mounting position : as desired
• Measuring accuracy  : ± 2.5% FS
• Zero adjustment : located in the dial

Measuring System

• Measuring ranges < 16 bar : diaphragm measuring system, diaphragm of fabric back stayed elastomer
• Measuring range 0-25 bar : diaphragm measuring system, diaphragm of DURATHERM®

Switching Elements

• Contact output : 1 or 2 microswitches, 1-channel change-over contacts
• Adjustment of switching points : external adjustment by standard value scales smallest adjustable value: approx. 5% FS
• Switching hysteresis : approx. 2.5% FS
• Load data / contacts : U ~ max. = 250 V AC, I max. = 5 A, P max. = 250 VA
  U = max. = 30 V DC, I max. = 0.4 A, P max. = 10 W
• Electrical Connection : numbered cable, prewired terminal box, 7-channel plug
• Pressure Connection : thread G1/4 female, cutting ring connection for 6, 8, 10,12 mm tube of brass, zinced steel or chrome nickel steel connection shank G1/4 male DIN EN 837

Materials

• Pressure chamber : aluminium GkAlSi10(Mg), varnished black
  aluminium GkAlSi10(Mg) HART-COAT® chrome nickel steel 1.4305
• Measuring diaphragm : diaphragm measuring system and gaskets of NBR or Viton®, diaphragm of DURATHERM® NiCrCo-alloy
• Materials: medium : stainless steel 1.4310, 1.4305
• Materials: housing : macrolon
• Weight : pressure chamber of Al = 1.2 kg, pressure chamber of 1.4305 = 3.5 kg
• Mounting : pipe mounting, pressure connections = (+), (-) symbols
  • by screwed-in cutting ring or clamping ring connection
  • by screwed-in connection shank acc. to DIN EN 837 for nipple fitting acc. to DIN 16288
  wallmounting
  • 3 fastening elements

For more info Click here to access the datasheet

MS-11 Fischer Differential Pressure Switch and Gauge

We ALVI Automation India Pvt. Ltd. http://www.alviautomation.com in association with Gas Alarm Systems Australia http://(www.gasalarmsysytems.co.au) pleased to offer Fischer MS-11 Differential pressure switch and Gauge For air and Liquid.

Differential Pressure Switch and Guage

Make: Fischer Germany

Features :

• Range : 0-10 bar
• Max Pressure rating : 25 bar
• Protection IP54 acc. to DIN 40050
• Class 2.5
• Diaphragm Material : NBR
• Pressure Chamber : Aluminium
• Bottom Pressure Connection , G ½ M
• 2 adjustable limit detection switches

Electrical Connection : Junction Box

For more enquiry please contact : info@alviautomatioin.com

Digital Pressure Transmitter – New Product Release

ALVI- India/Australia is happy to announce yet another product for pressure measurements – Digital pressure transmitter – MS13 – adding another feather to its cap of pressure measurement solutions.

Digital pressure transmitter MS13 is suitable for measuring pressure and vacuum in non-corrosive gaseous and liquid media.

Digital pressure transmitter MS13 offers a wide selection of pressure measuring ranges with various different process connections to suit your process application. With an analog output signal and freely adjustable switches, MS13 is ideal for use in pump and compressors monitoring and filling level measuring.

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The new EA15 Universal Display Device

ALVI – India (http://www.alviautomation.com)  in association with Gas Alarm Systems – Australia (http://www.gasalarm.co.au) take pride to offer The new EA15 Universal Display Device

FISCHER can supply the new EA15 universal display device.

With four analogue inputs and four analogue outputs, it is possible to display up to four process variables displayed simultaneously and store the data on a Micro SD card. Trend developments, limit value exceedances and the activation of the four integrated switching relays can also be visualized.
The high performance electronics enables additional display options to be realized according to customer requirements. The micro USB port enables firmware updates and parametrizations to be carried out without difficulty and comfortably. The housing with the IP65 protection type also serves to expand the scope of use of the device. An additional typical scope of use can be the monitoring of production processes.

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Fischer Diaphragm Pressure Gauge MA15

ALVI – India (http://www.alviautomation.com)  in association with Gas Alarm Systems – Australia (http://www.gasalarm.co.au) take pride to offer Diaphragm Pressure Gauge MA15  for NUCLEAR POWER PLANT

Applications:

• Pressure measurement
• under severe conditions
• Corrosion-resistant materials
• for aggressive media and aggressive environment

Advantage:

1.Corrosion-resistant
2.High overpressure protection
3.Suitable for open-air installation
4.Connection flanges conforming to
5.standards are available for viscous
6.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 PTF E-protective film
• Over pressure protection:
• 5-fold, max. 40 bar
• Measurement display:
• Bayonet ring casing Ø 100 or 160 mm
• Safety casing Ø 100 or 160 mm

PROCESS SAFETY IN NUCLEAR POWER PLANT

ALVI – India (http://www.alviautomation.com)  in association with Gas Alarm Systems – Australia (http://www.gasalarm.co.au) take pride to offer PROCESS SAFETY IN NUCLEAR POWER PLANT MISSION

PROCESS SAFETY

High quality standard thanks to specifically developed testing facilities
SAFEGUARDING OF INTERNATIONAL STANDARDS
Our devices are produced in line with the requirements
of DIN EN ISO 9001:2008.
Devices for safety-relevant applications in
nuclear-technical plants are subject to the extended
requirements according to KTA* 1401
standards and rules.
The job of KTA is to provide for establishing
safety-technical rules and for supporting their
application in fields of nuclear technology
where due to experience an uniform opinion
of manufacturers, creators and operators of
nuclear plants, experts and authorities is becoming
apparent.
* KTA (Kerntechnischer Ausschuss) = Nuclear Safety Standards
Commission
All processes are subject to the statutes of standards KTA 1401, 3505
and 3507. They attest the successful qualification of FISCHER Messund
Regeltechnik GmbH as an executing company (contractor assessment),
type testing of devices for safety-relevant processes, execution
of relevant testing as well as evidence of operational reliability of assemblies.

Implementation was carried out together with involved bodies of
certification companies, operators and authorized bodies.
For further information about our products and contact data please refer to www.fischermesstechnik.de/en/solutions/nuclear-power.
In pre-fabrication, the considerable production
steps contain processing raw material at modern
production centers.
High manufacturing penetration aims at expressing
an almost autarkic production, high
quality standard and short-term response to
customer needs.
Assembly and testing of measuring devices
is ensured at especially provided production
facilities.

Considerable aspects are separately applicable
processes, reproducibility and stamping of especially
qualified procurement material as well
as testing devices and documentation of test
results on testing equipment especially developed
for the high requirements.
All devices are subject to an entire testing
procedure in the course of a testing mode according
to certain pressure and temperature
processes in special calibration furnaces. In
addition, artificial ageing is created for ensuring
the interaction of components.
In this process, international standards are increasingly incorporated in KTA (Nuclear Safety Standards Commission) work,
essentially of IAEA (International Atomic Energy Agency) and of IEC (International Electrotechnical Commission).
International.

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Fischer DE:05 Level measurement Flow measurement Monitoring filters, pumps and compressors in Nuclear Power Plant

ALVI – India (http://www.alviautomation.com) in association with Gas Alarm Systems – Australia (http://www.gasalarm.co.au) take pride to offer Fischer products for Level measurement Flow measurement Monitoring filters, pumps and compressors in Nuclear Power Plant.
Material Type:-
Highly corrosion-resistant materials Wear-resistant meter movement Sins able pressure chambers Also for aggressive media
Measurement ranges:
0 … 100 mbar, 0 … 25 bar Measurement accuracy: ≤ 0.75 %Max. stat. pressure: 250 bar Operating temperature: –10°C … +70°C Technology: Analogue Electrical connection type:4-wire, galvanically isolated Operating voltage: 24V DC Output signal: 0/4 … 20 mA Characteristic curve: Linear, increasing or decreasing (switchable); root-extracting.

For more details and Enquiry Please contact:info@alviautomation.com

For details and Datasheet:broschuere_nuclear_power_2016_gb

Differential Pressure Switch for Ventilation

ALVI – India (http://www.alviautomation.com)  in association with Gas Alarm Systems – Australia (http://www.gasalarm.co.au) take pride to offer Differential Pressure Switch for Ventilation

Differential Pressure Switch for ventilation systems is used for optimization of airflow.

In building technology, the importance of energy management is continuously increasing. The need for action by the respective industrial company is prompted due to rising energy costs. The optimization and reduction of circulation volumes allows ventilation system to be designed smaller and leads to lower electricity consumption.

The major part of existing industrial ventilation systems operates under unregulated full load conditions. In the context of energy optimization the obvious choice, instead of the unregulated mode of system operation , is to decide in favor of the regulated mode by controlling the  ventilation system in accordance with the required air volume.

ALVI Technologies offers a range of various measuring devices allowing the storage of the characteristic curves  according to ventilation fans in the form of so-called value pairs (K-value) by means of a table function. Special ventilator characteristic curves can be stored in via a support point table.

Depending upon the requirement, the device can have a signal output, switching output and optionally a linear characteristic curve for filter monitoring or square root extracted characteristic curves of the controlled volume flow measurement.

For further information, please download our datasheets DE44 and DE45.

Differential Pressure Transmitter DE13 improves process efficiency by filter monitoring!

ALVI – India (http://www.alviautomation.com)  in association with Gas Alarm Systems – Australia (http://www.gasalarm.co.au) take pride to offer Differential Pressure Transmitter DE13 improves process efficiency by filter monitoring.

Instruments for measurement of variables such as  pressure, temperature, level, and flow in the process allows the system operators to monitor the condition and movement of liquids and gases. Differential pressure transmitter is widely used in filter monitoring. Our Differential pressure transmitter DE13 can greatly reduce operator error, improve process efficiency and reduce maintenance.

A filter removes unwanted particles or contaminants from a gas or liquid system. When a filter becomes clogged, efficiency and pressure drops. A filter should be removed or repaired only when it is in an unhealthy state. If it is removed before that, it leads to loss of time, manpower and money. On the other hand if it is left for too long, the process efficiency is compromised. The only way to get an indication of an unhealthy filter is via continuously monitoring the condition of filter.

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Tank Level Sensors for Fire Trucks

ALVI – India (http://www.alviautomation.com)  in association with Gas Alarm Systems – Australia (http://www.gasalarm.co.au) take pride to offer  Tank Level Sensors for Fire Trucks.

A fire engine or a fire truck is primarily used for firefighting operations.  Prior to entering the fire affected area, the fire truck should always be prepared with sufficient water level, pump engine fuel and vehicle fuel. Hence monitoring and keeping a track of water as well as fuel level is of utmost importance.

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