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A L M Engineering & Instrumentation Private Limited
A L M Engineering & Instrumentation Private Limited


Air Velocity and Flow

Wholesale Trader of a wide range of products which include aerosense multipoint averaging flow sensor, smart air flow capture hood, velocity sensor, aerosense air velocity transmitter, series dafm duct air flow measuring probe and averaging velocity sensor.

Aerosense Multipoint Averaging Flow Sensor

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Aerosense Multipoint Averaging Flow Sensor
Approx. Rs 2,500 / Number
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  • Aerosense Multipoint Averaging Flow Sensor is a differential pressure device designed to measure air velocities in duct.
  • It includes multiple sensing points to measure total and static pressures.
  • The Floaxis incorporates a unique design to amplify the differential pressure by approximately 2.5 times for accurate measurement of lower air velocities down to 200 fpm.
Features:
  • Multiple sensing points for greater accuracy.
  • Easy Installation
  • 2% accuracy
  • Accepts 1/4" OD tubing
Floaxis is available for Round & Rectangular duct both

Models are available for various duct dimensions right from 150mm to 1450mm
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Smart Air Flow Capture Hood

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Smart Air Flow Capture Hood
Approx. Rs 2.25 Lakh / Set
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Product Details:
BrandDwyer
ApplicationCommissioining, Testing, Adjusting & Balancing volumetric flow from diffusers, grilles and registers

Dwyer SMART Air flow capture hood Balancing Instrument is the most accurate and easy to operate air flow hood in market.
By using this hood stand and wireless communications to the handheld, a single operator can balance in less time than traditional balancing hood.

PredictAir Application Software:
The PredictAir application software displays flow measurements from Dwyer's SMART Air Hood Balancing Instrument.

Features:
  • Patent pending Quad Flow design technology directs the circulating air patterns to provide a more even airflow that minimizes back pressure enabling accurate readings.
  • Predictive balancing is a process that guides the balancing technician on setting the optimal flow set point for each sequential terminal.
  • The ergonomic design is much lighter and easier to work than the existing bulky air hoods, providing greater maneuvrability and less physical strain.
  • Wi-Fi direct wireless communication provides a range upto 200 yards.
  • Extensive diffuser library has flow coefficients that calibrates the SAH to within +/- 3% of reading accuracy.
  • Predictive balancing process determines the order and set points for adjusting registers in the balancing process.
  • Generates and shares air balancing reports directly from the handheld device.
Applications:
Commissioning, Testing, Adjusting & Balancing volumetric flow from diffusers, grilles and registers in HVAC Systems.
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Velocity Sensor

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Velocity Sensor
Approx. Rs 2,500 / Number
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The Series AFG Flow Grid is an outstanding simple yet accurate cost effective alternative to other duct mounted pressure sensors. Once installed and connected to a suitable measuring instrument, the device will provide years of trouble free monitoring of both air and gas flow. Installing the AFG Flow Grid is quick and easy, the AFG is supplied in kit form to allow both workshop and on-site installation into a wide range of square and circular ducts up to approximately 60".

The AFG Flow Grid is a fundamental pressure sensing device designed to transmit a continuous differential pressure signal. When this output is connected to a suitable measuring instrument (i.e., manometer, pressure transducer, etc.), it may be used to determine air velocity and volume flow rate.

How the AFG Flow Grid Works
The AFG Flow Grid consists of two tubes mounted diagonally across a square or rectangular duct, or diametrically across a round duct. The tubes are drilled with a series of equi-spaced holes.

The holes in one tube face directly upstream and sense total pressure, while the pairs of holes in the second tube also face forward but at an included angle of 79 degrees, sensing static pressure. The total and (sub) static pressures are averaged along the length of each tube and provide pressure signals at connectors outside the duct wall. The pressure differentials across these connectors constitute the output signal.

Product Applications

The AFG Flow Grids will give useful and reliable readings in a wide variety of 'in duct' locations often where other flow rate measuring devices are found to be unsatisfactory. The signal from an AFG Flow Grid can be used in a variety of ways, for example:
To display differential pressure, velocity of volume flow using a micro manometer, gage or transmitter.To give a warning of over or under flow rate using a pressure switch.To control air supply in a system by connection the grid to a pressure transmitter with an electrical output which can be used to feed into a control system.To display differential pressure on a simple fluid manometer to give visual indication of changes in volume flow rate in the duct.

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Aerosense Air Velocity Transmitter

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Aerosense Air Velocity Transmitter
Approx. Rs 9,500 / Piece
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Product Details:
BrandAerosense

Aerosense Air Velocity Transmitter measures Air Velocity and Temperature, with field selectable range and output options in a single device.
The transmitters are engineered for building automation in HVAC/R industry.

Features:
  • Suitable for Dry air and non-aggressive gases.
  • Field selectable velocity range, i.e. 0-2 m/s, 0-10 m/s, 0-20 m/s.
  • Temperature range upto 50 °C
  • Stainless steel 304 probe
  • 4-20mA / 0-10V selectable output.
  • Optional relay output is also available.
  • Optional Display model available.
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Series DAFM Duct Air Flow Measuring Probe

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Series DAFM Duct Air Flow Measuring Probe
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The Model DAFM Duct Air Flow Measuring Probe uses evenly distributed total and static pressure measuring points to deliver an accurate measurement of flows in a duct. The Air Flow Measuring Probe can be completely installed from outside of the duct making it very easy to install. With its lightweight and durable construction in addition to its ease of installation, this product lends itself to being used in the HVAC industry. These air flow measuring probes may be ordered for either round or rectangular ducts. In order to ensure accurate measurements you must determine the number of probes needed for your size duct. If the duct is rectangular, then consult the chart to determine appropriate quantity of probes.

Short Duct Dimension

  • <12"
  • 12"-23"
  • 24"-35"
  • 36"-59"
  • 60"-89"
  • >89"

Number of Probes

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6

If the duct is round, it is only necessary to purchase two probes for any size of duct and mount them perpendicular to each other.

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Averaging Velocity Sensor

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Averaging Velocity Sensor
Approx. Rs 2,000 / Piece
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Averaging Air Flow Sensor is ideal for sensing velocity pressure in the inlet section of variable air volume terminal units and fan terminal units.

Features:
  • Simple mounting flange works with both round or rectangular ducts.

Applications:
  • Zone control in HVAC system
  • Retrofit HVAC air flow measurement.

Specifications :

  • Material : SS
  • Color : White 
  • Type : Sensor 
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Air Velocity Fume Hood Monitor

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Air Velocity Fume Hood Monitor
Approx. Rs 49,500 / Unit
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  • Dwyer Air Velocity Monitor continously measures Fume Hood Airflow, it monitors for safe airflow through laboratory fume hoods.
  • They are typically installed in fume hood side fascia and connected to interior side wall.
  • As the exhaust fan draws air through the device, a sensitive constant temperature thermistor measures flow and lights a green (normal), yellow (high) or red (low) LED.
  • An audible alarm also warns of low flow and requires manual resetting.

Additional Information:

  • Item Code: 660
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    Air Flow Station with Honeycomb Straightener

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    Air Flow Station with Honeycomb Straightener
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    • Airflow measurement station utilizes an airflow averaging element generating a velocity pressure signal to the orifice, venturi and other primary elements.
    • Single or multiple airflow elements are factory mounted.
    • Multiple elements are joined together for connection to a differential measurement device (gage, transmitter) for flow measurement and indication purpose.
    • It has been developed with a honeycomb airflow strainghtening section for use in duct systems having turbulent conditions.
    Features:
    • Honeycomb airflow straightening section with 1/2 opening by 3" depth.
    • Low signal-to-noise ratio
    • Standard construction includes galvanized casing and 6063-T5 anodized aluminium flow sensor.
    • Standard air flow stations can be operated continously in temperatures upto 350 deg F
    Applications:
    Building ar intake and exhaust flow rate measurement.
    HVAC air flow measurement

    Additional Information:

  • Item Code: STRA
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    Air Flow Measurement Stations

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    Air Flow Measurement Stations
    Approx. Rs 2,500 / Square Feet
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    Product Details:
    ModelAFMS

    Air Flow Station is specifically designed for the measurement of airflow signal in HVAC applications.
    It is easy to install- simply connect the tubing to the station fittings, then to differential pressure manometer, gage, transmitter or switch.
    It utilizes an airflow averaging element in a head type device, generating a differential (velocity) pressure signal.

    Features:
    • Multiple total and static pressure sensing ports along the length of the element.
    • ±2% accuracy throughout velocity ranges of 100 fpm and over.
    • Standard construction includes galvanized casing and 6063-T5 anodized aluminium flow sensor.
    • Standard airflow stations can be operated continously in tempertaures upto 350°F or intermittently upto 400°F
    • Air flow stations can be operated in humidity ranges of 0 to 100%
    • Standard air flow stations have good salt air resistance and are suitable for most HVAC applications.
    • Rectangular or circular configuration as per clients requirement/applications.
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    Air Flow Switch

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    Air Flow Switch
    Approx. Rs 7,000 / Unit
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    Being a customer oriented firm, we are engaged in offering a wide range of Air Flow Switch. This switch is manufactured using optimum grade raw-material and sophisticated technology in synchronization with industry standards. In order to ensure quality, the entire range is rigorously tested on various parameters by quality controllers. Keeping in mind the diverse requirements of our clients, we provide entire range of switch in various sizes and specifications and at affordable price.

    Features:

    • Compact design
    • Longer working life
    • Sturdy construction

    Additional Information:

  • Item Code: 530
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    Dwyer Stainless Steel Pitot Tube

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    Dwyer Stainless Steel Pitot Tube
    Approx. Rs 5,000 / Piece
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    Product Details:
    ApplicationIndustrial

    Dwyer Stainless Steel Pitot Tube is ideal to be used in the industrial operations with our precision manometers and air velocity gages.

    Various standard sizes are available for use in ducts as small as 4" dia or as large as 36 ft dia.

    Features:
    • No calibration needed.
    • Precisely located, burr free static pressure holes.
    • Hemispherical tip design, best for accuracy if imperfectly aligned and nearly impossible to damage.
    • Long lasting SS304 construction.
    • Dwyer Air Velocity calculator, direct reading flow charts and instructions included.
    • Use 1/8" models in ducts as small as 4" and 5/16" models in ducts 10" or larger.
    • Optional mounting gland or split flange make permanent installation fast and simple.
    • ASME design meets AMCA & ASHRAE specifications.
    Specifications

    • Long lasting, welded stainless steel construction
    • 1/8" female NPT connections, permanently welded
    • Maximum Temperature Rating: 1500°F
    • Maximum Pressure Rating: 100 psig
    • 0.84 flow coefficient
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    Dwyer Ellipsoidal Tip Pitot Tube

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    Dwyer Ellipsoidal Tip Pitot Tube
    Approx. Rs 5,500 / Unit
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    Product Details:
    ApplicationIndustrial

    Dwyer Ellipsoidal tip Pitot tube uses a precision crafted tip configuration, which allows air to pass smoothly with minimum turbulence and reliable readings.

    Features:
    • Designed to meet ISO standard
    •  Improves accuracy
    • 304 stainless steel construction adds strength and resist corrosion
    • Alignment indicator helps keep tip parallel to flow.
    Applications:
    Monitor or control air velocity or air flow when combined with differential pressure gage, switch or transmitter.

    Additional Information:

  • Item Code: 160
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    Telescoping Stainless Steel Pitot Tube

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    Telescoping Stainless Steel Pitot Tube
    Approx. Rs 24,500 / Unit
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    Product Details:
    ApplicationIndustrial

    Telescoping Stainless Steel Pitot tube is a unique air flow sensor which can quickly and easily be adjusted for any duct inersertion length from 11.5 to 36 inches.

    Features/Benefits:
    • Adjustable length can replace up to 5 fixed length Pitot tubes.
    • Stainless steel construction resists corrosion
    • 1.8" diameter hemispherical tip has 1.0 flow coefficient
    Applications:
    Monitor or control air velocity or air flow when combined with differential pressure gage, switch or transmitter where varying lengths are needed.

    Specifications

    • Largest section:3/8" (9.5 mm)
    • Material:Stainless Steel
    • Case :12.5 x 6.25 x 1.75 in
    • Weight (with case): 1 lb, 9 oz
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    Hot Wire Digital Thermo Anemometer

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    Hot Wire Digital Thermo Anemometer
    Approx. Rs 24,500 / Set
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    Dwyer Thermo-Anemometer Test Instrument measures Air Velocity or Air Volume and Temperature simultaneously.

    Features:
    • Measures Air Velocity upto 30 m/s
    • ±3% FS accuracy .
    • High contrast LCD display shows both selected readings simultaneously.
    • Light automatically shuts off after 2-1/2 minutes to prolong battery life.
    • Stainless steel probe with comfortable hand grip is etched with insertion depth marks from 0 to 8 inches.
    • Upto 99 readings may be stored for later retrieval

    Specifications:
    • color:white with black silicon cover
    • size:198*85*45mm
    • weight:390g
    • accessories:9V battery, black bag, manual, blister card and anemo probe

    Additional Information:

  • Item Code: 471B
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    Lutron Digital Anemometer

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    Lutron Digital Anemometer
    Approx. Rs 5,250 / Piece
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    Lutron Digital Vane (Fan) type Anemometer measures Air velocity upto 30 m/s. 
    • The Protable Anemometer provides fast, accurate readings, with digital readability and the convenience of a remote sensor separately.
    • Multi-functions for air flow measurement.
    • A sesntive balanced vane wheel rotates freely in response to air flow.
    • Built-in low battery indicator.
    • DATA HOLD function for storing the desired value on display
    Applications:
    Anemometer is used to check Air conditioning & heating systems, measures air velocities, wind speeds, temperature.
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    Aerosense Air Flow Transmitter

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    Aerosense Air Flow Transmitter
    Approx. Rs 7,250 / Piece
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    Product Details:
    BrandAerosense
    Input Pressure (Pascal)1000
    Model Number/NameDPT-Flow

    Aerosense Differential Pressure cum Flow Transmitter engineered for building automation in HVAC/R industry.

    • It measures volume flow, velocity and static and differential pressure.
    • The DPT-Flow devices can be connected directly to pressure measurements points in centrifugal fan.


    Features:

    • ZERO point calibration i.e. Automatic autozero or manual pushbutton.
    • Pressure output upto 7000 PA.
    • Selectable Flow units
    • Air Velocity/Flow range upto 20000 fpm
    • Optional Auto-Zero feature (AZ)- The AZ calibration electronically adjusts the transmitter zero at predetermined time intervals (every 10 minutes). The AZ calibration eliminates all output signal drift due to thermal, electronic or mechanical effects.

    Applications:

    • Airflow monitoring across centrifugal fans and blowers.
    • In-duct airflow monitoring
    • VAV applications

     

     

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    Dwyer Air Velocity Transmitter

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    Dwyer Air Velocity Transmitter
    Approx. Rs 35,000 / Piece(s)
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    By keeping in mind the track of advanced market development, we are engaged in offering an exclusive range of Dwyer Air Velocity Transmitter. It is an ideal instrument for measuring the flow of clean air & non-combustible gases. Extremely demanded in processing industries, this transmitter is made available in numerous specifications that are designed using latest technology. The offered transmitter is broadly acknowledged among our clients for its optimum quality, fine finish and durability. Apart from this, our clients can avail this transmitter from us at market leading prices.

    Features:

    • Rugged design
    • Smooth performance
    • Highly efficient
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    Air Quality Instrument

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    Air Quality Instrument
    Approx. Rs 34,500 / Set
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    Air Quality Instrument combine versatile UHH handheld base with various compatible probes and modules.

    UHH measures Differential Pressure, Air Velocity, Volume Flow, Relative Humidity and Temperature using wired and wireless probe.

    These Wireless probe/modules can be connected to your mobile phones & tablets which convert your smart devices into Manometer, Thermo-Anemometer & Thermo-Hygrometer with data logging and sharing feature.

    Features:
    • It enables a technician to quickly set up & navigate through their daily activities.
    • Data is stored via the internal memory or separate SD card in various auto or manual logging operations.
    • Large colour display can operate in 4 process reading modes.
    • Manual or automatic data logging modes include several adjustable parameters that enables the user to obtain readings in a multitude of potential test.
    • Internal memory or expanded memory with protable SD card provides ample data logging capacity.
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    Call Us: +91-8045315605
    A L M Engineering & Instrumentation Private Limited
    Mahdi Hasan (Director)
    No. 302-304, Damji Shamji Industrial Complex L. B. S. Marg, Kurla West,
    Mumbai - 400070, Maharashtra, India
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