Pressure

Dwyer Digital Calibration Pressure Gauge

Product Details:
  • Brand: Dwyer
  • Model: Series DPG

Dwyer Digital Calibration Pressure Gage with +/- 0.05% accuracy, 316 SS Wetted parts and calibration capabilities.
With 0.05% accuracy and large 5 digit resolution, this gage can be used in critical industrial application where precision is most important.

Features:
  1. Highest accuracy provides exceptional measurement for calibration minimizing costly out of specification condition.
  2. Stainless steel housing resist ambient corrosion for longer service life in harsh environements.
  3. Lightweight and slim, yet large easy to read battery powered gage make them easy to carry and read.
Applications:

-Field gage calibration
-Permanent installation
-Burnt disc testing
-Torque data logging
-Pressure regulator testing
-To be used with pressure pump for calibration.

Dwyer Digital Pressure Gauge

Approx Price: Rs 6,000 / Piece 
Dwyer Digital Pressure Gage with 0.25%, 0.5% and 1% accuracy for service of compatible liquids and combustible gases.
It is battery powered and has an auto-shut off to conserve battery life.
Battery life on average will last 2000 hours.

Features:
  • High accuracy provides exceptional measurement minimizing costly out of specifications conditions.
  • Backlit 4-digit display provides clear parallax-free reading potentional for errors.
  • Battery powered gage and auto-shut off eliminates wiring and prolongs battery life reducing service calls
  • Push button zero reduce installation and service time.
Applications:
  • Process applications
  • Replacement for legacy analog gages.
  • OEM applications

Explosion Proof Pressure Switch

Dwyer Explosion proof & Weather proof Pressure Switch UL, CSA listed.

Benefits:
  • Its housing provides device protection for outdoor use and harsh environment operations.
  • Independent piston action design for either gas or liquid allows switches to active together or independently based on settings
  • Mounting in any position and not affected by vibration provides reliable switching for equipment.
Applications:

  • Mechanical HVAC or process equipment.
  • Chemical, petroleum, food and drug processing industries.
  • Process and Industrial applications.

Aerosense Pressure Gauge

We are an acclaimed name engaged in offering our precious clients a superior quality range of Aerosense Pressure Gauge. This Gauge 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 our quality controllers. Keeping in mind the diverse requirements of our clients, we provide entire range in various specifications at affordable prices.

Features:

  • Compact design
  • Trouble-free operation
  • Accurate results

Calibration Pressure Gauge and Pressure Pump

Product Details:
  • Brand: Dwyer

Digital Calibration Pressure Gage with ±0.05% FS accuracy, 316 SS Wetted parts and calibration capabilities.
With 0.05% accuracy and large 5 digit resolution, this gage can be used in critical industrial application where precision is most important.

Features:
-Highest accuracy provides exceptional measurement for calibration minimizing costly out of specification conditions.
-Stainless steel housing resist ambient corrosion for longer service life in harsh environements.
-Lightweight and slim, yet large easy to read battery-powered gage make them easy to carry and read.

Applications:
- Field gage calibration
- Permanent installation
- Burst disc testing
- Torque data logging
- Pressure regulator testing
- to be used with Pressure pump for calibration

Specifications
  • Type:gauge
  • Net weight:0.8kg.
  • Working place:On-site or laboratory
  • Power:battery or power adaptor
  • connector:optinal based on M20X1.5
  • Application:used with power adaptor

Additional Information:
  • Item Code: DCGII-PHP

Digihelic II Differential Pressure Controller

Product Details:
  • Type: Automatic
  • Digit Display Size: Single Display

The Digihelic® Controller just got better with the New Series DHII Differential Pressure Controller. The DHII takes all the fabulous features of the standard Digihelic® Pressure Controller and packages them in a robust NEMA 4 (IP66) housing.

The Digihelic® II Pressure Controller combines the 2 SPDT control relays, 4-20 mA process output and Modbus® communications with a large, brightly backlit 4 digit LCD display that can easily be seen from long distances. The electrical wiring has also been enhanced in the DHII with its detachable terminal blocks. The removable terminals allow the install to easily wire the terminal block outside the housing and then attach to the circuit board, reducing wiring difficulties and installation time on the process.

The Digihelic® II Differential Pressure Control in the new NEMA 4 (IP66) enclosure enables this product to be the perfect choice when mounting pressure controls outdoors in such applications as rooftop air handlers. This housing also makes it the ideal solution for surface mounting in clean rooms or facilities where water or a cleaning solution is utilized in maintaining plant cleanliness.

Product Applications

  • Air Handlers
  • Clean Rooms

Dwyer Industrial Pressure Transmitter

Product Details:
  • Brand: Dwyer

Dwyer Industrial Pressure Transmitter with 0.25% and 1% accuracy contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminium conduit housing.
 
Features:
  • Metal conduit housing option
  • Robust 316L SS oil filled sensor
  • Compact design.

Applications:
  • Compressors
  • Pumping system
  • Irrigation equipment.
  • Hydraulic
  • Industrial process monitoring

Explosion Proof Smart Pressure Transmitter

Explosion proof Smart Pressure Transmitter is a microprocessor based transmitter which has flexible pressure calibration, push button configuration and programmable using HART communication.

It is FM approved for use in hazardous locations.

Specifications:
  • Range ability (100:1)
  • Work temperature: -40 ~ 85°C 
  • Power:9~32V DC(FF,PA)
  • High Accuracy (+/- 0.075%)
  • Fail mode process connection
  • Completely configurable using zero/span buttons.

Additional Information:
  • Item Code: 3200

Pressure Transducers

Approx Price: Rs 2,500 / Piece 
The 3100 Series high pressure OEM transducer makes it ideal for installations where space is at a premium.

Features:
  • Long term stability better than +/- 0.1% FS/Yr
  • 0.25% full scale accuracy
  • Stainless steel construction
  • Wide choice of pressure ranges from 50 psi upto 32000 PSI
  • Fully RoHS Compliant

Applications:
  • Medical
  • Hydraulic Pressure
  • HVAC/R Compressors
  • Variable speed pumps
  • Regrigeration
  • Industrial/OEM
  • Pumps

Series 1700 Low Differential Pressure Switch Designed for OE

Product Details:
  • Power/Voltage: 220V

Series 1700 Differential Pressure Switches were specifically designed to satisfy the demands of high volume original equipment manufacturers for a tough, dependable limit switch at a very low price. The Model 1710 uses Dwyer's simple, time-proven method of mechanically coupling a sensitive 3" diameter silicone rubber diaphragm to a versatile SPDT snap switch. The switch housing is precision molded of a high strength glass filled PPO which has excellent dimensional and thermal stability. This unique combination of existing and new technologies enables Dwyer to offer a limit switch priced less than comparable units without sacrificing performance. Installation is fast and simple with twist and tighten mounting screw slots, 1/4" quick connect electrical terminals and dual size barbed pressure ports for 1/8" and 3/16" ID vinyl or rubber tubing.

For use with air and other non-combustible, non-corrosive gases, switches are UL and CSA recognized. Two models are offered with field adjustable ranges from .15 to .55" w.c. and .50 to 7.5" w.c. Units are rated for 2 psig maximum system pressure, temperature limit is 190°F and weight is only 4 oz.

Product Applications

  • High efficiency furnaces
  • Duct pressure monitor
  • Laboratory fume hoods
  • Monitor air filter condition
  • Engine diagnostic equipment

Series 1800 Low Differential Pressure Switch

Product Details:
  • Brand: ALM

Series 1800 Low Differential Pressure Switch for General Ind

Essential for industrial environments, the Series 1800 combines small size and low price with 2% repeatability for enough accuracy for all but the most demanding applications. Set point adjustment inside the mounting stud permits mounting switch on one side of a wall or panel with adjustment easily accessible on the opposite side. UL and CSA listed, and FM approved.

CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

Series 1900 Compact Low Differential Pressure Switches

Product Details:
  • Power/Voltage: 220V

Our most popular series combines advanced design and precision construction to make these switches able to perform many of the tasks of larger, costlier units. Designed for air conditioning service, they also serve many fluidics, refrigeration, oven and dryer applications. For air and non-combustible compatible gases, Series 1900 switches have set points from 0.07 to 20" w.c. (1.8 to 508 mm). Set point adjustment is easy with range screw located inside conduit enclosure. Internal location helps prevent tampering. UL, CE and CSA listed, and FM approved.

CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

Product Applications

  • Air conditioning refrigeration coil icing detection; defrost cycle intiation.
  • Clogged filter detection.
  • Variable air volume controller.

Series 2-5000 Minihelic Differential Pressure Gages

Product Details:
  • Brand: ALM

Combining clean design, small size and low cost with enough accuracy for all but the most demanding applications our Minihelic® II gage offers the latest in design features for a dial type differential pressure gage. It is our most compact gage but is easy to read and can safely operate at total pressures up to 30 psig. The Minihelic® II gage is designed for panel mounting in a single 2-5/8" diameter hole. Standard pressure connections are barbed fittings for 3/16" ID tubing; optional 1/8" male NPT connections are also available. Over-pressure protection is built into the Minihelic® II gage by means of a blow-out membrane molded in conjunction with the diaphragm. Accidental over-ranging up to the rated total pressure will not damage the gage. With removable lens and rear housing, the gage may be easily serviced at minimum cost.

With the housing molded from mineral and glass filled nylon and the lens molded from acrylic, the gage will withstand rough use and exposure as well as high total pressure. The 5% accuracy and low cost of the Minihelic® II gage make it well-suited for a wide variety of OEM and user applications. OEM applications include cabinet air purging, medical respiratory therapy equipment, air samplers, laminar flow hoods, and electronic air cooling systems. As an air filter gage, the Minihelic® II gage finds many end use applications on large stationary engines, compressors, ventilators, and air handling units. The Minihelic® II gage is suitable for many of the same applications as the Magnehelic® gage where the greater accuracy, sensitivity, and higher and lower differential pressure ranges of the Magnehelic® gage are not required.

Product Applications:

  • Room Positive Pressure Sensing
  • Local Indication on Filter Status
  • Face Velocity on Fume Hood
  • Duct Pressures

Series 2000 Magnehelic Differential Pressure Gages

Product Details:
  • Brand: ALM
  • Wetted Parts: SS 304

Select the Magnehelic® gage for high accuracy--guaranteed within 2% of full scale--and for the wide choice of 81 models available to suit your needs precisely. Using Dwyer's simple, frictionless Magnehelic® gage movement, it quickly indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential. The design resists shock, vibration and over-pressures. No manometer fluid to evaporate, freeze or cause toxic or leveling problems. It's inexpensive, too.

The Magnehelic® gage is the industry standard to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems and pressures in fluid amplifier or fluidic systems. It also checks gas-air ratio controls and automatic valves, and monitors blood and respiratory pressures in medical care equipment.

Note: May be used with Hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi.

Product Applications:

  • Filter Monitoring
  • Air Velocity with Dwyer Pitot Tube
  • Blower Vacuum Monitoring
  • Fan Pressure Indication
  • Duct, Room or Building Pressures
  • Clean Room Positive Pressure Indication

Series 250-AF Inclined Air Filter Gage Manometer

Product Details:
  • Filtration Grade: Hepa Filter
  • Construction: Cartridge Filter

Dwyer® Durablock® Series 250-AF Gages are precision machined 1" thick solid acrylic plastic, virtually unbreakable and free of distortion. The fluid bore is precision drilled to ±.0002" to assure life long accuracy. A glass spirit level is built into the body and encapsulated to prevent damage or tampering. The scale is mirror polished chrome plated brass to assure parallax free reading by alignment of the meniscus with its reflection. Safety traps are incorporated in the body to prevent loss of fluid due to pressure surges. Red and green signal flags indicate clearly when a filter change is necessary. Gages are suitable for use in ambient temperatures of -20 to 150°F. Connection fittings are positively sealed by "O" rings but easily removed for zeroing or addition of fluid. Furnished complete with instructions.

Economy Models 451-AF and 452-AF are similar to 250 Series except they are not equipped with over pressure traps. Two A-324 1/4" compression fittings are included with each Gage. Bodies are of 5/8" thick acrylic and scales are mirror polished, epoxy coated aluminum.

Series 3000MR/3000MRS Photohelic Switch Gage

Product Details:
  • Usage: Industrial
  • Brand: ALM

Using solid state technology, the Series 3000MR and 3000MRS Photohelic® switch/gages combine the functions of a precise, highly repeatable differential pressure switch with a large easy-to-read analog pressure gage employing the durable, time-proven Magnehelic® gage design. Switch setting is easy to adjust with large external knobs on the gage face. Gage reading is unaffected by switch operation - will indicate accurately even if power is interrupted. Solid state design now results in greatly reduced size and weight. Units can be flush mounted in 4-13/16" (122 mm) hole or surface mounted with hardware supplied. 3000MR models employ versatile electromechanical relays with gold over silver contacts - ideal for dry circuits. For applications requiring high cycle rates, choose 3000MRS models with SPST (N.O.) solid state relays. All models provide both low and high limit control and include 18-inch (45 cm) cable assemblies for electrical connections.

Gage accuracy is ±2% of full scale and switch repeatability is ±1%. Switch deadband is one pointer width - less than 1% of full scale. Compatible with air and other non-combustible, non-corrosive gases, they can be used in systems with pressures to 25 psig (1.725 bar). Optional construction is available for use to either 35 psig (2.42 bar) or 80 psig (5.51 bar).

Included Accessories: mounting ring, snap ring; 18" (45 cm) cable assembly; (2) 3/16" tubing to 1/8" NPT adapters; (2) 1/8" NPT pipe plugs; (4) 6-32 x 1-1/4" RH machine screws (panel mounting); and (3) 6-32 x 5/16" RH machine screws (surface mounting).

Product Applications

  • Fan Control
  • Damper Control
  • Environmental Pollution Control

Series 616D Differential Pressure Transmitter

Product Details:
  • Brand: ALM

The Series 616D Differential Pressure Transmitter senses the pressure of air and compatible gases and sends a standard 4-20 mA output signal. The 616D housing is specifically designed to mount on a 35 mm DIN rail in a panel. This mounting style allows for several units to be mounted closely together reducing required space. A wide range of models are available factory calibrated to specific ranges. The span and zero controls are for use when checking calibration. They are not intended for re-ranging to a significantly different span. Versatile circuit design enables operation in 2-wire current loops.

Product Applications

  • Compact, DIN rail housing allows unit to be easily mounted in HVAC control panel.

Series 616KD Differential Pressure Transmitter

Product Details:
  • Brand: ALM

The Series 616KD Differential Pressure Transmitters with One-Touch® technology are designed for simplicity making them the ideal choice for installers and maintenance professionals.

The One-Touch® Differential Pressure Transmitters are cost-effective, compact transmitters that reduce up front costs as well as expenses over the life of the product. These instruments not only alleviate cumbersome turn pots typically found in most transmitters, but eliminate entirely the need to span the instrument during calibration. With a single digital push button, both ZERO AND SPAN are calibrated properly, nothing else is required. No additional reference pressure sources and separate calibration devices are necessary; no need to remove from service and send to a lab. All that is required of the installer or user is to let the unit sit at zero reference pressure, then push a button. That is it! The transmitter is now ready for operation. Time savings are enormous over the life of the product compared to traditional transmitters which require time to annually remove the product from service plus the additional time to actually perform a complete full-span calibration.

Mounting is simple with integral mounting holes on the 616KD that are inherent to the molded housing. The 616KD has the expanded capability to be mounted on a 35 mm DIN rail either via its side or back integral DIN rail clips. The Series 616KD has easy-to-wire open screw terminals at the top of the housing. An optional protective cap snaps directly to housing to cover terminals.

The One-Touch® family of Differential Pressure Transmitters are ideal for building automation applications such as air handlers, duct pressure, variable air volume and filter monitoring. Available models include ranges from 1 in w.c. to 20 in w.c. depending on series.

Series A3000 Photohelic Pressure Switch Gage

Product Details:
  • Accuracy: 90
  • Wetted Parts: SS 304
  • Brand: ALM

Photohelic® Switch/Gages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic® gage design. The Photohelic® switch/gage measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig. Single pressure 36000S models measure to 6000 psig (413 bar) with a 9000 psig (620 bar) rating. Two phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust set point indicators are controlled by knobs located on the gage face. Individual set point deadband is one pointer width - less than 1% of full scale. Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. Choose from full scale pressure ranges from a low 0-.25" (0-6 mm) w.c. up to 30 psi (21 bar); single positive pressure to 6000 psig (413 bar).

Photohelic Sensing - How It Works
In typical applications, these Dwyer switch/gages control between high and low pressure set points. When pressure changes, reaching either set point pressure, the infrared light to the limiting phototransistor is cut off by the helix-driven light shutter. The resulting phototransistor signal is electronically amplified to actuate its DPDT slave relay and switching occurs. Dead band between make and break is 1% of full scale or less - just enough to assure positive, chatter-free operation.

Relay-Transformer Features
A plastic housing protects all electronic components. Solid-state and integrated circuit electronics are on glass-epoxy printed circuit boards and self-extinguishing terminal boards.


Product Applications

  • Air Conditioner Systems
  • Clean Rooms
  • Fume Exhaust Systems

Series ADPS/EDPS Differential Pressure Switch

Product Details:
  • Power: 440
  • Brand: ALM
  • Material to Measure: Liquid

The Series ADPS/EDPS Adjustable Differential Pressure Switch is designed for pressure, vacuum, and differential pressures. The dual scaled adjustment knob in inches water column and pascals allows changes to the switching pressure to be made without a pressure gage. The ADPS/EDPS is available with settings from 0.08 in w.c. (20 Pa) up to 20 in w.c. (5000 Pa). The silicone diaphragm and PA 6.6 body make the series ADPS ideal for use with air and other noncombustible gases. Series EDPS models meet UL508 and are constructed of plenum rated plastics. The compact size, adjustment knob and low cost make the ADPS/EDPS the perfect choice for HVAC applications.

Product Applications

  • Monitoring air filters and ventilators.
  • Monitoring industrial cooling-air circuits.
  • Overheating protection for fan heaters.
  • Monitoring flows in ventilation ducts.
  • Controlling air and fire-protection dampers.
  • Frost protection for heat exchanges

Series AT11910 ATEX Approved 1910 Differential Pressure Switch

Product Details:
  • Brand: ALM
  • Accuracy: 90
  • Wetted Parts: SS 304

Our most popular Differential Pressure Switch is now available in an flame-proof ATEX approved package in the AT11910 Series. This pressure switch combines advanced design and precision construction to make these switches able to perform many of the tasks of larger, costlier units. For air and non-combustible compatible gases, the AT11910 Series switches have set points from 0.07 to 20 in w.c. (1.8 to 508 mm). Set point adjustment is easy with range screw located inside the switch enclosure. Series AT11910 ATEX enclosures are available in aluminum enclosures and ideal for low pressure, hazardous area applications.

Important notes for installation:

  • Cables must be fitted through 1/2" NPT cable gland or ATEX conduit (not supplied with instrument).
  • Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve).
  • Open cover only after de-energizing instrument.
  • Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

Series AT1ADPS ATEX Approved ADPS Adjustable Differential Pressure Switch

Product Details:
  • Application: Industrial
  • Brand: ALM

The ATEX approved Series AT1ADPS Adjustable Differential Pressure Switch is designed for pressure, vacuum, and differential pressure applications in hazardous areas. The dual scaled adjustment knob in inches water column and pascals allows changes to the switching pressure to be made without a pressure gage. The switch is available with settings from 0.08 in w.c. (20 Pa) up to 16 in w.c. (4000 Pa). The silicone diaphragm makes this series ideal for use with air and other noncombustible gases. Flame-proof ATEX enclosures are available in aluminum and can include a glass window for viewing set point status on adjustment knob.

Important notes for installation:

  • Cables must be fitted through 1/2" NPT cable gland or ATEX conduit (not supplied with instrument).
  • Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve).
  • Open cover only after de-energizing instrument.
  • Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

Series AT21823 ATEX Approved 1823 Differential Pressure Swit

Product Details:
  • Brand: ALM
  • Wetted Parts: SS 304

Essential for industrial environments, the ATEX approved Series AT21823 combines small size with 2% repeatability. Set point adjustment inside the switch allows for set point settings across 9 ranges from the low of .07 in w.c. to a maximum 85 in w.c. differential pressure. Series AT21823 flame-proof ATEX enclosures are available in aluminum and are ideal for low pressure hazardous area applications. Various housing options such as an overpressure relief valve or external setpoint adjustment knob are available. External setpoint knob allows adjustment without opening the enclosure.

Important notes for installation:

  • Cables must be fitted through 1/2" NPT cable gland or ATEX conduit (not supplied with instrument).
  • Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve).
  • Open cover only after de-energizing instrument.
  • Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

Series AT22000 ATEX Approved Series 2000 Magnehelic Differential PressureGage

Product Details:
  • Brand: ALM
  • Accuracy: 90%
  • Wetted Parts: SS 304

The popular Magnehelic® Differential Pressure Gage is now available in a flame-proof ATEX enclosure with the new ATEX approved AT22000 Series. This gage can indicate positive, negative or differential pressures and is accurate within 2%. The Magnehelic® gage is the industry standard to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems and pressures in fluid amplifier or fluidic systems. Optional gage construction is available for use to either 35 psig (2.42 bar) or 80 psig (5.51 bar). Flame-proof ATEX enclosures are available in aluminum and include a glass window for viewing process pressures status on gage face.

Important notes for installation:

  • Cables must be fitted through 1/2" NPT cable gland or ATEX conduit (not supplied with instrument).
  • Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve).
  • Open cover only after de-energizing instrument.
  • Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

Series AT23000MR/3000MRS ATEX Approved Photohelic Switch

Product Details:
  • Brand: ALM
  • Accuracy: 90
  • Wetted Parts: SS 304

Using solid state technology, the Series AT23000MR and AT23000MRS ATEX Approved Photohelic® Switch/Gages combine the functions of a precise, highly repeatable differential pressure switch with a large easy-to-read analog pressure gage. Gage reading is unaffected by switch operation and will indicate accurately even if power is interrupted. AT23000MR series employ versatile electromechanical relays with low amperage ratings-ideal for dry circuits. For applications requiring high cycle rates, choose AT23000MRS models with SPST (NO) solid state relays. Easy to adjust set point indicators are controlled by knobs located on the gage face (accessible opening case after de-energizing instrument). All models provide both low and high limit control. Compatible with air and other non-combustible, non-corrosive gases, they can be used in systems with pressures to 25 psig (1.725 bar). Optional construction is available for use to either 35 psig (2.42 bar) or 80 psig (5.51 bar). Flame-proof ATEX enclosures are available with glass window which allows for viewing of set point needles and process pressure.

Important notes for installation:

  • Cables must be fitted through 1/2" NPT cable gland or ATEX conduit (not supplied with instrument).
  • Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve).
  • Open cover only after de-energizing instrument.
  • Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

Series AT2DH3 ATEX Approved DH3 Differential Pressure Controller

Product Details:
  • Brand: ALM
  • Accuracy: 90%
  • Wetted Parts: SS 304

The ATEX approved Series AT2DH3 Digihelic® Differential Pressure Controller is a 3 in 1 instrument possessing a digital display gage, control relay switches, and a transmitter with current output. Combining these three features allows the reduction of several instruments with one product, saving inventory, installation time and money. The ATEX approved Digihelic® controller is the ideal instrument for hazardous area pressure, velocity and flow applications by allowing for the selection of pressure, velocity or volumetric flow operation in several commonly used engineering units. Two SPDT control relays with adjustable dead bands are provided along with a scalable 4 to 20 mA process output. In velocity or flow modes, a square root output is provided on the 4 to 20 mA signal to coincide with the actual flow curve. Flame-proof ATEX enclosures are available in aluminum and can include a glass window for viewing process information and set point status on digital display.

Important notes for installation:

  • Cables must be fitted through 1/2" NPT cable gland or ATEX conduit (not supplied with instrument).
  • Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve).
  • Open cover only after de-energizing instrument.
  • Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

Series AT3A3000 ATEX Approved Photohelic Switch Gages

Product Details:
  • Usage: Laboratory
  • Brand: ALM

Flame-proof ATEX approved Photohelic® Switch/Gages, Series AT3A3000, function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic® gage design. The Photohelic® switch/gage measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig (1.7 bar) with options to 35 psig (2.4 bar) or 80 psig (5.5 bar). Two phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust set point indicators are controlled by knobs located on the gage face (accessible opening case after de-energizing instrument). Set points can be interlocked to provide variable dead band – ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. Flame-proof ATEX enclosures are available in aluminum with glass window which allows for viewing of set point needles and process pressure.

Important notes for installation:

  • Cables must be fitted through 1/2" NPT cable gland or ATEX conduit (not supplied with instrument).
  • Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve).
  • Open cover only after de-energizing instrument.
  • Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

Series BDPA Adjustable Differential Pressure Alarm

Product Details:
  • Power/Voltage: 220V

The Series BDPA Adjustable Differential Pressure Alarm with built-in audible and visual set point indication is designed for over pressure, vacuum, and differential pressure applications. The scaled adjustment knob allows changes to the switching pressure to be made without a pressure gage. The BDPA is available with settings from 0.08" w.c. (20 Pa) to 20" w.c. (5000 Pa). The silicone diaphragm and PA 6.6 body make the Series BDPA perfect for use with air and other noncombustible gases.

The Series BDPA Adjustable Differential Pressure Alarms offer a versatile range of configurations allowing utilization of their many features. The BDPA can be powered by battery or 24 VDC/VAC line power. If connecting line power, the battery can act as back-up power in case of power outage. When set point threshold is reached, a local loud audible buzzer and bright LED will indicate periodically notifying of set point activation. An SPDT contact may also be wired to send a signal remotely to a DDC or building management system. A snooze button located through an opening in the cover can be pressed by the user to manually disengage the audible and visual indication until a maintenance operation is performed. If the instrument is mounted where it is difficult to access, a remote contact may be connected allowing the user to deactivate the buzzer and LED at the remote contact location.

The Series BDPA Differential Pressure Alarm's great functional versatility makes it perfect for filter, fan, and ventilation applications or any retrofit job where installing electrical wiring proves cost-prohibitive.

Note: For a 1/2" npt connection, use the 1/2" conduit fitting adapter (A-483).

Series BYDS Bypass Damper Switch

Product Details:
  • Flow Media Type: Liquid
  • Installation Type: In-line Type

The Series BYDS Bypass Damper Switch is designed to control motorized bypass dampers. As individual zone dampers open and close, the system static pressure will rise and fall. In order to maintain proper airflow and static pressure through the HVAC system, a bypass system incorporating a floating type motorized damper and a static pressure control should be incorporated. A typical on/off pressure switch cannot operate in this application due to the high cycle rate that would result, eventually causing contact burnout. The BYDS static pressure control is equipped with a solid-state switching and timing circuit to enhance operation and improve long-term reliability in this demanding application.

CONTROL OPERATION
The BYDS Bypass Damper Switch is designed for use with a three wire floating point damper actuator used to control the static pressure on zone control systems requiring motorized bypass dampers. A bypass damper, bypasses air from the discharge air side of the HVAC unit back in the return air side. The air flow is modulated in order to maintain a constant static pressure in the system as individual zone dampers open and close. The static pressure control is equipped with solid-state switching which dramatically increases the life of the control. On an increase in static pressure the BYDS will send 24 volts out and start the actuator to drive open. When the static pressure reaches set-point the actuator will stop. After a ten second delay the actuator will start to drive the damper closed if there has not been an increase in static pressure. A green LED indicates when the damper is in the open position or being driven open. A 24 VAC transformer is required to power the BYDS control and damper actuator. The unit includes tubing and two static pressure probes.

Series DH Digihelic Differential Pressure Controller

Product Details:
  • Type: Automatic
  • Digit Display Size: Single Display

The Series DH Digihelic® Differential Pressure Controller is a 3 in 1 instrument possessing a digital display gage, control relay switches, and a transmitter with current output. Combining these 3 features allows the reduction of several instruments with one product, saving inventory, installation time and money. The Digihelic® controller is the ideal instrument for pressure, velocity and flow applications, achieving a 0.5% full scale accuracy on ranges from 0.25 to 100 in. w.c.

The Digihelic® controller allows the selection of pressure, velocity or volumetric flow operation in several commonly used engineering units. Two SPDT control relays with adjustable dead bands are provided along with a scalable 4-20 mA process output. In velocity of flow modes, a square root output is provided on the 4-20 mA signal to coincide with the actual flow curve. The Series DH provides extreme flexibility in power usage by allowing 120/220 VAC and also 24 VDC power which is often used in control panels.

Programming is easy using the menu key to access 5 simplified menus which provide access to: security level; selection of pressure, velocity or flow operation; selection of engineering units; K-factor for use with flow sensors; rectangular or circular duct for inputting area in flow applications; set point control or set point and alarm operation; alarm operation as a high, low or high/low alarm; automatic or manual alarm reset; alarm delay; view peak and valley process readings; digital damping for smoothing erratic process applications; scaling the 4-20 mA process output to fit your application's range; Modbus® communications; and field calibration.

With all this packed into one product it is easy to see why the Digihelic® controller is the only instrument you will need for all your pressure applications.

Product Applications

  • SCFM Flow in Ducts
  • Air Flow for Industrial Ovens
  • Filter Status
  • Clean Room Pressure
  • Fume Hood Air Flow
  • Medical Room Pressures
  • Static Pressures in Ducts or Buildings
  • Damper Control
  • Fan Control

Series DH3 Digihelic Differential Pressure Controller

Product Details:
  • Type: Automatic
  • Digit Display Size: Single Display

The Series DH3 Digihelic® Differential Pressure Controller is a 3 in 1 instrument possessing a digital display gage, control relay switches, and a transmitter with current output all packed in the popular Photohelic® gage style housing. Combining these 3 features allows the reduction of several instruments with one product, saving inventory, installation time and money. The Digihelic® controller is the ideal instrument for pressure, velocity and flow applications, achieving a 1% full scale accuracy on ranges down to the extremely low 0.25" w.c. to 2.5" w.c. full scale. Ranges of 5" w.c. and greater maintain 0.5% F.S. accuracy. Bi-directional ranges are also available.

The Series DH3 Digihelic® controller allows the selection of pressure, velocity or volumetric flow operation in several commonly used engineering units. 2 SPDT control relays with adjustable deadbands are provided along with a scalable 4-20 mA process output.

Programming is easy using the menu key to access 5 simplified menus which provide access to: security level; selection of pressure, velocity or flow operation; selection of engineering units; K-factor for use with flow sensors; rectangular or circular duct for inputting area in flow applications; set point control or set point and alarm operation; alarm operation as a high, low or high/low alarm; automatic or manual alarm reset; alarm delay; view peak and valley process reading; digital damping for smoothing erratic process applications; scaling the 4-20 mA process output to fit your applications range and field calibration.

Product Applications

  • SCFM flow in ducts
  • Filter status
  • Static pressures in ducts or buildings
  • Damper control
  • Fan control

Series MDA Miniature Adjustable Pressure Switch

Product Details:
  • Power/Voltage: 220V

Sense differential pressure with the Series MDA Miniature Adjustable Pressure Switch. The switch features field adjustable set point and gold inlay contacts. Air or other compatible fluids can be used on the "high side". The lightweight and compact size make the MDA ideal for any application with space constraints. Applications include industrial, HVAC, pump and motor control, medical, automotive, pools and spas.

Series MDS Miniature Pressure Switch

Product Details:
  • Brand: ALM
  • Material to Measure: Liquid

The Series MDS Pressure Switch is designed with a double diaphragm to protect false actuation due to shock and vibration. This low cost pressure switch has a minimum 20 million cycle life expectancy, and an extremely fast response time, making this an ideal device for OEM orders.

Series MP Mini-Photohelic Differential Pressure Gage Switch

Product Details:
  • Brand: ALM
  • Material to Measure: Liquid

The Series MP Mini-Photohelic® differential pressure switch/gage combines the time proven Minihelic® II differential pressure gage with two SPDT switching set points. The Mini-Photohelic® switch/gage is designed to measure and control positive, negative, or differential pressures consisting of non-combustible and non-corrosive gases. Gage reading is independent of switch operation. Switching status is visible by LED indicators located on the front and rear of the gage. Set points are adjusted with push buttons on back of unit. This extremely compact switch/gage is ideal for fume hoods, dust collection, pneumatic conveying and clean room applications.

Series Mark II Molded Plastic Manometer

Product Details:
  • Raw Material: PE
  • Automation Grade: Automatic
  • Machine Structure: Vertical
  • Clamping Force: 500-1000 ton

Dwyer® Mark II series molded manometers are of the inclined and inclined-vertical types. The curved inclined-vertical tube of the Model 25 gage provides higher ranges with more easily read increments at low readings. The Model 25 is excellent for general purpose work. The Model 40 inclined gage provides linear calibration and excellent resolution throughout its range. The Model 40 is ideally suited for air velocity and air filter gage applications. Both gage types are capable of pressure measurements above and below atmospheric as well as differential pressure measurements.

Series PDPS Compact Economic Differential Pressure Switch

Product Details:
  • Power/Voltage: 220V

The Series PDPS's large diameter diaphragm and snap action switch make it dependable and ideal for OEM applications. The Series PDPS Pressure Switches are available for pressure, vacuum, and differential applications and are factory preset for pressures from 0.07 in. of w.c. to 1.0 in. of w.c. with full-scale repeatability of ±0.02 in. of w.c. Other features of the PDPS pressure switch include standard multi-barb port connections, inherent mounting and quick disconnect terminals, which make the Series PDPS perfect for many OEM applications.

Series RSM Room Status Monitor

Product Details:
  • Material: Stainless Steel
  • Brand: ALM

The Series RSM Room Status Monitor is designed for critical low differential pressure applications that require stringent pressure monitoring and alarming. The Series RSM can be configured to monitor positive or negative pressure in protected environments and hospital isolation rooms per CDC guidelines. The RSM is a complete system that includes a backlit RGB LCD display with a graphic user interface which enables access to pressure, security, calibration, and alarm setup. The touch-screen displays menus that guide the user through setup, as well as setting up password protection. Red and green LED's and a local audible alarm (with time delay feature) alert personnel to system status. The RSM has a NEMA 1 (IP20) rated fire retardant plastic for indoor applications. True differential pressure is displayed with a resolution of 0.001 in w.c. The very low pressure capacitance is dead ended and avoids the potential for cross contamination of the room and reference space as well as eliminating drift that results from fouling of flow based sensors, which by nature have a flow path connecting the protected and reference spaces. Additionally, there are two levels of password protection available as well as optional BACnet MSTP communication. A calibration certificate is provided with every unit.

Product Applications

  • Hospital Isolation Wards
  • Pharmaceutical
  • Manufacturing
  • Cleanrooms
  • Research Labs
  • Animal Facilities

Single Pressure Manometer

Approx Price: Rs 8,000 / Piece 
Dwyer Single Pressure Digital Manometer can be used to used to measure low pressure with +/- 1.5% FS accuracy.

Features:
  • Rugged extruded aluminium housing.
  • One button auto-zero function.
  • Auto power off function to conserve battery life.
  • Instant selection of upto 9 English/metric units.

Applications:
  • Verify field instrumentation performance.
  • Adjust fuel mixture on combustion systems.

Additional Information:
  • Item Code: 476A

Switching Output Pressure Controller

Approx Price: Rs 28,500 / Piece 
We are one the leading manufacturer and supplier of Switching Output Pressure Controller with high-quality of material used as per the industry standards.

EDA Electronic Pressure Control is the extremely versatile compact package with 2 Switches, Indicating Gage and Transmitter in one package.

Specifications:
  • Service: Compatible liquids and gases
  • Housing: Glass filled plastic
  • Power Requirements: 12 to 30 VDC/AC

Additional Information:
  • Item Code: EDA
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