Dwyer A3004 Photohelic Pressure Switch Gauge

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Dwyer A3004 Photohelic Pressure Switch Gauge

Price 45000 INR/ Piece

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MOQ : 5 Pieces

Dwyer A3004 Photohelic Pressure Switch Gauge 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

Pointer Material
Aluminum

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

Processing Type
Standard

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

Product Type
Dwyer A3004 Photohelic Pressure Switch Gauge Range 0-4.0 Inch w.c

Weight
4 lb (1.81 kg) Kilograms (kg)

Glass Size
4" (101.6 mm)

Color
Black

Mount Type
Panel

Scale Range
Range 0-4.0 Inch w.c.

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

Dwyer A3004 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 A3004 Photohelic Pressure Switch Gauge

Dwyer A3004 Photohelic Pressure Switch Gauge Range 0-4.0 Inch w.c.

Dwyer A3004 Photohelic Pressure Switch/Gauge (0-4.0"w.c.)

Model: A3004

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

Dwyer A3004 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 A3004 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)

Reliable and Accurate Measurement

The Dwyer A3004 Photohelic Pressure Switch Gauge is engineered for precision. It offers an accuracy of 2% of full scale at standard temperatures, making it trustworthy for critical steam, oil, or gas measurements. The robust metal alloy housing and aluminum pointer enhance both performance and durability, ensuring long-term reliability in demanding environments.

Versatile Application Across Industries

Suited for measuring air and non-combustible, compatible gases, this gauge finds application in industries such as HVAC, manufacturing, and energy. Its flexible range, panel mounting capabilities, and multiple finish options (polished, matte, antique, galvanized) ensure adaptability to diverse process needs.

Clear Display and User-Friendly Design

Featuring a large 4-inch dial with clear gradations, the Dwyer A3004 allows operators to quickly read pressure values. The panel mount design simplifies integration into existing systems, while the lightweight build (4 lb) promotes easy handling and installation for users and maintenance teams.

FAQ's of Dwyer A3004 Photohelic Pressure Switch Gauge:

Q: How does the Dwyer A3004 Photohelic Pressure Switch Gauge function?

A: The gauge measures differential pressure and activates switches at set pressure points, providing both visual readings and electronic control in one device. It is suitable for steam, oil, gas, air, and compatible non-combustible gases.

Q: What is the accuracy of this pressure gauge and under what conditions is it maintained?

A: The gauge ensures an accuracy of 2% of full scale at 70F (21.1C), making it well-suited for precise industrial applications. Accuracy may be 3% or 4% for certain low-range models (-0 or -00).

Q: When should this pressure switch gauge be used in a process system?

A: This instrument is ideal when precise monitoring and control of differential pressure are required, such as in HVAC, filtration, and process control systems, for safe and efficient operation.

Q: Where can the Dwyer A3004 be installed?

A: The gauge is designed for panel mounting and can be installed in control rooms or directly on industrial panels for convenient access and monitoring.

Q: What types of media is this gauge compatible with?

A: It is compatible with air and non-combustible, compatible gases, as well as steam, oil, and gas, extending its application across various industrial processes.

Q: How do users benefit from the gauge's dual functionality?

A: The A3004 Photohelic provides both switch and analog gauge functions in a single unit, reducing equipment needs and minimizing installation while ensuring responsive control and clear pressure display.

Q: What maintenance is required for optimal performance?

A: Regular inspection of the dial, pointer, and electrical connections is advised; keeping the instrument clean and ensuring no blockages in pressure ports will help maintain accuracy and longevity.

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