Dwyer A3000-750PA Photohelic Pressure Switch Gauge Range 0-750 Pa

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Dwyer A3000-750PA Photohelic Pressure Switch Gauge Range 0-750 Pa

Price 45000 INR/ Piece

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MOQ : 5 Pieces

Dwyer A3000-750PA Photohelic Pressure Switch Gauge Range 0-750 Pa Specification

Display
4"(101.6 mm) dial face,5 x 8"(127 x 209.55 mm)

Material
Metal Alloy

Usage
Air and non-combustible, compatible gases

Dial Material
Plastic

Size
4"(101.6 mm) dial face,5 x 8"(127 x 209.55 mm)

Pointer Material
Aluminum

Processing Type
Standard

Product Type
Dwyer A3000-750PA Photohelic Pressure Switch Gauge Range 0-750 Pa

Diameter
4"(101.6 mm) dial face,5 x 8"(127 x 209.55 mm) Inch (in)

Weight
4 lb (1.81 kg) Kilograms (kg)

Glass Size
4"(101.6 mm)

Color
Black

Mount Type
Panel

Scale Range
Range 0-750 Pa

Accuracy
2% of FS at 70F (21.1C),3% on -0,4% on -00 models %

Finishing
Polished, Matte, Galvanized, Antique

Measure Pressure Of
Steam, Oil, Gas, Water

Dwyer A3000-750PA Photohelic Pressure Switch Gauge Range 0-750 Pa Trade Information

Minimum Order Quantity
5 Pieces

FOB Port
Delhi

Payment Terms
Cash Against Delivery (CAD), Cash on Delivery (COD), Cash in Advance (CID), Cash Advance (CA)

Supply Ability
5 Pieces Per Week

Delivery Time
5-6 Week

Main Export Market(s)
Middle East, Asia

Main Domestic Market
Chandigarh, Himachal Pradesh, Sikkim, Manipur, Meghalaya, Uttarakhand, Daman and Diu, Dadra and Nagar Haveli, Lakshadweep, Chhattisgarh, South India, North India, East India, Andaman and Nicobar Islands, Assam, Arunachal Pradesh, Bihar, Goa, Haryana, Jammu and Kashmir, Jharkhand, Karnataka, Madhya Pradesh, Maharashtra, Mizoram, Nagaland, Odisha, Punjab, Pondicherry, Rajasthan, Tamil Nadu, Tripura, Uttar Pradesh, West Bengal, Delhi, Gujarat, Telangana, Andhra Pradesh, Kerala, Central India, West India, All India

Certifications
Websites : www.dpengineers.in www.dpengineer.in www.dpengineers.co.in www.dpengineer.co.in www.dpengineersindia.com www.dpengineerindia.com www.dpengineersindia.in www.dpengineers.info www.dpengineer.info www.dp-engineers.com www.dpengineerindia.in www.dpengineersindia.net www.dpengineersdelhi.co.in www.dpengineersdelhi.com www.dpengineersdelhi.net

About Dwyer A3000-750PA Photohelic Pressure Switch Gauge Range 0-750 Pa

Dwyer A3000-750PA Photohelic Pressure Switch Gauge Range 0-750 Pa.

Dwyer A3000-750PA-240VAC Photohelic Pressure Switch/Gauge (0-750 Pa),220/240 VAC Relay Pack

Model: A3000-750PA-240VAC

Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose PhotohelicAAAA switch/gage set point mechanism. Cover is clear polycarbonate plastic.Gage pointer and light shutter are mounted on helix and balancing counterweight.

Dwyer A3000-750PA-240VAC Series A3000 Photohelic Pressure Switch 0 to 750 Pa

The Dwyer A3000-750PA-240VAC has a range from 0-750 Pa and 220/240 VAC Relay Pack.

PhotohelicAA Switch/Gauges function as versatile,highly repeatable pressure switches combined with a precise pressure gauge employing the time-proven MagnehelicAA gauge design. The PhotohelicAAAA 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 gauge 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. Gauge 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.

Dwyer A3000-750PA Specifications

Switch Specifications

Switch Type:Each set point has 2 Form C relays (DPDT)

Repeatability:AA1% of FS

Electrical Rating:10 A at 28 VDC,10 A at 120,240 VAC

Electrical Connections:Screw terminals.Use 167AAF (75AAC) copper conductors only

Power Requirements:120 VAC,50/60 Hz,240 VAC and 24 VAC power optional

Mounting Orientation:Diaphragm in vertical position. Consult factory for other position orientations

Set Point Adjustment:Adjustable knobs on face

Agency Approvals:CE,CSA,UL

Gauge Specifications

Service:Air and non-combustible, compatible gases

Accuracy:AA2% of FS at 70AAF (21.1AAC),AA3% on -0,AA4% on -00 models

Pressure Limits:-20"Hg to 25 psig(-0.677 to 1.72 bar),MP option;35 psig (2.41 bar),HP option;80 psig (5.52 bar)

Temperature Limits:20 to 120AAF.(-6.67 to 48.9AAC),-20 to 120AAF(-28 to 48.9AAC) with low temperature option

Process Connections:female NPT

Dimensions:4"(101.6 mm) dial face,5 x 8AA14"(127 x 209.55 mm)

Weight:4 lb (1.81 kg)

Reliable Pressure Measurement for Critical Applications

Engineered for performance and accuracy, the Dwyer A3000-750PA accurately measures differential pressure in environments such as HVAC, industrial processing, and liquid distribution systems. Its durable components and versatile compatibility with various media ensure dependable operation and easy installation in panels or equipment banks.

User-Friendly Features and Durable Construction

With a large, easy-to-read 4-inch dial face and sturdy aluminum pointer, this gauge ensures precise readings at a glance. The high-quality metal alloy body and options for multiple finishes allow for integration into a wide range of industrial settings, while the moderate weight makes handling and mounting straightforward.

FAQ's of Dwyer A3000-750PA Photohelic Pressure Switch Gauge Range 0-750 Pa:

Q: How does the Dwyer A3000-750PA Photohelic Pressure Switch Gauge operate?

A: The gauge works by detecting pressure differentials and displaying precise readings on its analog dial. It can also actuate integrated switches to control equipment based on preset pressure thresholds.

Q: What substances can this pressure switch gauge safely measure?

A: The A3000-750PA is compatible with steam, oil, gas, water, air, and other non-combustible, compatible gases, making it suitable for a wide variety of industrial and commercial applications.

Q: When should I use this pressure switch gauge in my system?

A: Use this gauge whenever monitoring and controlling low-pressure differentials is critical, such as in HVAC systems, filtration units, or safety-sensitive industrial processes that demand accurate pressure management.

Q: Where is the Dwyer A3000-750PA typically installed?

A: This device is designed for panel mounting, making it suitable for control rooms, equipment panels, and process monitoring stations in manufacturing plants or utility facilities.

Q: What is the process for calibrating or adjusting the gauge?

A: Calibration is performed by comparing the gauge's readings to a certified standard at specified pressures and making mechanical adjustments if necessary. This should be done periodically to maintain accuracy, especially after installation or maintenance.

Q: How does the gauge's construction benefit industrial users?

A: The metal alloy body ensures durability, while the choice of finishes and robust pointer material provides resistance to various environmental conditions, enhancing longevity and reducing maintenance needs.

Q: What advantages does the large dial and clear markings offer?

A: The 4-inch dial face and distinct pointer allow operators to read pressure values quickly and accurately, even in busy or low-light environments, supporting efficient system management.