Dwyer A3220 Photohelic Pressure Switch Gauge

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Dwyer A3220 Photohelic Pressure Switch Gauge

Price 45000 INR/ Piece

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MOQ : 5 Pieces

Dwyer A3220 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

Product Type
Photohelic Pressure Switch Gauge Range 0-20 psi

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

Weight
4 lb (1.81 kg) Kilograms (kg)

Glass Size
4"

Mount Type
Panel

Color
Black

Scale Range
Range 0-20 psi

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

Dwyer A3220 Photohelic Pressure Switch Gauge Trade Information

Minimum Order Quantity
5 Pieces

FOB Port
Delhi

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

Supply Ability
5 Pieces Per Week

Delivery Time
5-6 Week

Main Export Market(s)
Middle East, Asia

Main Domestic Market
All India

About Dwyer A3220 Photohelic Pressure Switch Gauge

Dwyer A3220 Photohelic Pressure Switch Gauge Range 0-20 psi

Dwyer A3220 Photohelic Pressure Switch/Gauge (0-20 psi)

Model: A3220

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 A3220 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 A3220 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 167°F (75°C) 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 70°F (21.1°C)±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 48.9°C) with low temperature option
Process Connections: female NPT
Dimensions:4" (101.6 mm) dial face,5 x 8¼" (127 x 209.55 mm)
Weight:4 lb (1.81 kg)

Versatile Pressure Monitoring

With a scale range of 0-20 psi, the Dwyer A3220 Photohelic allows accurate measurement of steam, oil, and gas pressures. Its adaptable design supports air conditioning, clean rooms, and fume exhaust systems, delivering dependable readings in various critical environments.

Built for Durability and Precision

Manufactured from high-quality metal alloy and available in multiple finishes, this gauge combines robust construction with precise accuracy. The 4-inch dial, made of durable plastic, is designed for clear readability. The aluminum pointer further enhances measurement reliability over long-term use.

FAQ's of Dwyer A3220 Photohelic Pressure Switch Gauge:

Q: How is the Dwyer A3220 Photohelic Pressure Switch Gauge typically installed?

A: The gauge is designed for panel mounting, making installation straightforward in control panels commonly found in industrial and commercial applications.

Q: What types of media can this pressure gauge measure?

A: It is capable of accurately measuring pressure in steam, oil, and gas systems, making it suitable for a wide range of process environments.

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

A: Use the Dwyer A3220 in situations requiring precise, reliable pressure monitoring - for example, in clean rooms, air conditioning systems, and fume exhaust systems.

Q: Where is this gauge manufactured and supplied from?

A: This model is manufactured, exported, and supplied by reputable companies based in India, ensuring quality craftsmanship and global availability.

Q: What is the benefit of the 2% full-scale accuracy at 70F?

A: This high level of accuracy ensures that pressure readings are trustworthy and repeatable, which is critical for maintaining safety and efficiency in sensitive applications.

Q: How does the finishing option affect the gauge?

A: The gauge is available in matte, polished, galvanized, and antique finishes, giving users the flexibility to choose based on their application's aesthetic or corrosion resistance requirements.

Q: What process does the gauge use to measure pressure?

A: It utilizes a standard mechanical sensing mechanism, displayed on a 4-inch plastic dial with an aluminum pointer, for direct reading of pressure values up to 20 psi.

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