Dwyer A3000-250PA Photohelic Pressure Switch Gauge

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Dwyer A3000-250PA Photohelic Pressure Switch Gauge

Price 45000 INR/ Piece

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MOQ : 5 Pieces

Dwyer A3000-250PA Photohelic Pressure Switch Gauge Specification

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

Usage
Air and non-combustible,compatible gases

Material
Metal Alloy

Dial Material
Plastic

Pointer Material
Alloy

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 A3000-250PA Photohelic Pressure Switch Gauge Range 0-250 Pa

Weight
4 lb (1.81 kg) Kilograms (kg)

Glass Size
4"(101.6 mm)

Color
Black

Mount Type
Panel

Scale Range
Range 0-250 Pa

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

Dwyer A3000-250PA Photohelic Pressure Switch Gauge Trade Information

Minimum Order Quantity
5 Pieces

FOB Port
Delhi

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

Supply Ability
5 Pieces Per Week

Delivery Time
5-6 Week

Main Export Market(s)
Asia, Middle East

Main Domestic Market
All India

About Dwyer A3000-250PA Photohelic Pressure Switch Gauge

Dwyer A3000-250PA Photohelic Pressure Switch Gauge Range 0-250 Pa

Dwyer A3000-250PA Photohelic Pressure Switch/Gauge (0-250 Pa)

Model: A3000-250PA

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 A3000-250PA 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 A3000-250PA 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 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 120 F. (-6.67 to 48.9 C),-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 8" (127 x 209.55 mm)

Weight:4 lb (1.81 kg)

Precision Measurement and Versatile Applications

This pressure switch gauge delivers high accuracy in measuring steam, oil, gas, and air pressures ranging from 0 to 250 Pa. Its versatile construction allows usage with non-combustible and compatible gases, making it ideal for HVAC systems, process industries, filtration monitoring, and more. The durable alloy design ensures reliable performance under demanding conditions and a long service life.

Durable Construction and Flexible Installation

Built with a sturdy metal alloy body and available in various finishes-matte, polished, galvanized, or antique-the Dwyer A3000-250PA withstands harsh environments. The clear 4-inch dial and strong alloy pointer facilitate easy, accurate readings. Designed for panel mounting, it integrates seamlessly into existing systems with minimal effort.

Accurate, Reliable, and Easy to Maintain

Engineered for 2% full-scale accuracy at standard conditions, this photohelic gauge ensures dependable monitoring and control. Its plastic dial and lightweight (1.81 kg) construction make routine maintenance straightforward. Operators benefit from the ease of use and minimal downtime, streamlining pressure management tasks.

FAQ's of Dwyer A3000-250PA Photohelic Pressure Switch Gauge:

Q: How does the Dwyer A3000-250PA Photohelic Pressure Switch Gauge measure pressure?

A: The gauge uses a sensitive photohelic switch mechanism to measure differential pressures of air or compatible non-combustible gases within a range of 0-250 Pa. The large 4-inch dial face provides visual feedback, while internal electrical contacts enable automated control or alarms based on preset pressure thresholds.

Q: What media can this pressure switch gauge safely monitor?

A: The Dwyer A3000-250PA is designed for use with air and other compatible non-combustible gases, such as steam, oil vapor, and certain types of gas commonly found in HVAC and industrial processes. It is not intended for highly flammable or aggressive gases.

Q: When is it advisable to use this gauge in industrial applications?

A: This device is best employed when accurate low-pressure monitoring and control are needed-for example, in HVAC systems, combustion air supply, filter monitoring, or process control environments where safety and reliability are vital.

Q: Where should the gauge be installed for optimal operation?

A: For optimal performance, the Dwyer A3000-250PA should be panel-mounted in a location free from excessive vibration, dust, and direct moisture. Proper installation ensures accurate readings and extends the life of the device.

Q: What is the process for setting or adjusting the pressure setpoints?

A: Setpoint adjustment is performed by accessing the front dial under the transparent glass cover. By using the pointer, users can precisely set the desired pressure threshold for switching or alarm activation in accordance with their system's requirements.

Q: How can users benefit from its various finishing options?

A: The range of finishes-matte, polished, galvanized, or antique-allows users to select a style that best suits their facility's environment, whether for aesthetic matching, corrosion resistance, or ease of cleaning.

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