Dwyer A3020 Photohelic Pressure Switch Gauge

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Dwyer A3020 Photohelic Pressure Switch Gauge

Price 45000 INR/ Piece

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MOQ : 5 Pieces

Dwyer A3020 Photohelic Pressure Switch Gauge Specification

Usage
Air Conditioner Systems Clean Rooms Fume Exhaust Systems

Material
Metal Alloy

Dial Material
Plastic

Pointer Material
Aluminum

Processing Type
Standard

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

Product Type
Dwyer A3020 Photohelic Pressure Switch Gauge Range 0-20 Inch w.c.

Weight
4 lb (1.81 kg) Kilograms (kg)

Glass Size
4"

Color
Black

Mount Type
Panel

Scale Range
Range 0-20 Inch w.c.

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

Finishing
Matte, Polished, Antique, Galvanized

Measure Pressure Of
Steam, Oil, Gas

Dwyer A3020 Photohelic Pressure Switch Gauge Trade Information

Minimum Order Quantity
5 Pieces

FOB Port
Delhi

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

Supply Ability
5 Pieces Per Week

Delivery Time
5 - 6 Week

Main Export Market(s)
Middle East, Asia

Main Domestic Market
Dadra and Nagar Haveli, Himachal Pradesh, South India, Central India, North India, East India, West India, Andaman and Nicobar Islands, Andhra Pradesh, Assam, Arunachal Pradesh, Bihar, Chhattisgarh, Chandigarh, Delhi, Daman and Diu, Gujarat, Goa, Haryana, Jammu and Kashmir, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Mizoram, Meghalaya, Manipur, Nagaland, Odisha, Punjab, Pondicherry, Rajasthan, Sikkim, Tamil Nadu, Telangana, Tripura, Uttarakhand, West Bengal, Lakshadweep, Uttar Pradesh, Jharkhand, 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 A3020 Photohelic Pressure Switch Gauge

Dwyer A3020 Photohelic Pressure Switch Gauge Range 0-20 Inch w.c.

Dwyer A3020 Photohelic Pressure Switch/Gauge (0-20"w.c.)

Model: A3020

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

Dwyer A3020 Offers

Features

Measure 4 to 20 mA signals without "breaking the loop"

Measure mA signals for PLC and control system analog I/O

Dual backlit display with both mA measurement and percent of 4 to 20 mA span

Measurement Spotlight illuminates hard to see wires in dark enclosures

Detachable clamp with extension cable for measurements in tight locations

Measure 10 to 50 mA signals in older control systems using the 99.9 mA range

Automatically change the 4 to 20 mA output for remote testing

Power saving features, auto-off, backlight timeout extend battery life

Hold function captures and displays changing measurements

Applications

Air Conditioner Systems

Clean Rooms

Fume Exhaust Systems

Dwyer A3020 Specifications

Switch Specifications

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

Repeatability:1% of FS

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

Electrical Connections:Screw terminals.Use 167F (75C) 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:2% of FS at 70F (21.1C),3% on -0,4% 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 120F.(-6.67 to 48.9C),-20 to 120F (-28 to 48.9C) with low temperature option

Process Connections:? female NPT

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

Weight:4 lb (1.81 kg)

Versatile Pressure Switching and Indication

The Dwyer A3020 Photohelic Pressure Switch Gauge is designed for both monitoring and controlling pressure, offering the unique advantage of dual functionality. Its reliable pressure switches trigger at set points, enhancing automation in environments like clean rooms and exhaust systems.

Built for Durability and Precision

Engineered with a sturdy metal alloy and plastic construction, the A3020 withstands demanding operating environments. Its 4-inch glass dial provides clear readings, while the aluminum pointer ensures lasting accuracy over time, supported by multiple finishing options from matte to galvanized.

Streamlined Installation and Maintenance

This gauge is easy to install in panels due to its compact design and standard mounting system. Routine calibration and maintenance are simplified, ensuring users experience minimal downtime while benefiting from consistent, high-quality pressure monitoring.

FAQ's of Dwyer A3020 Photohelic Pressure Switch Gauge:

Q: How does the Dwyer A3020 Photohelic Pressure Switch Gauge operate?

A: The Dwyer A3020 functions by measuring differential pressure and actuating electrical switches at preset points. Its dial provides real-time readings, and the switches can trigger alarms or control devices when specific pressure thresholds are reached.

Q: What are the primary applications of this gauge?

A: This pressure switch gauge is commonly used in air conditioning systems, clean rooms, and fume exhaust systems. It is also suitable for monitoring steam, oil, and gas pressures, making it versatile for various industrial environments.

Q: When should I calibrate or check the accuracy of the device?

A: It is advisable to calibrate the gauge annually or when you notice inconsistent readings. Regular maintenance helps retain its stated accuracy of 2% of FS at 70F and ensures optimal performance.

Q: Where is the A3020 gauge typically installed?

A: The A3020 is designed for panel mounting, making it ideal for integration into control panels of HVAC, laboratory, and industrial systems. Its compact size and mounting type facilitate streamlined installation.

Q: What benefits does the Dwyer A3020 offer over conventional pressure gauges?

A: Unlike conventional gauges, the A3020 offers both pressure measurement and built-in switching capabilities, reducing the need for separate devices. Its durable construction, variety of finishes, and precise accuracy provide extended operational life and adaptability.

Q: How do I select the right finishing option for my environment?

A: The gauge is available with matte, polished, antique, and galvanized finishes. The best choice depends on the application: for harsh environments, galvanized or matte finishes offer better resistance, while polished or antique finishes suit controlled indoor settings.

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