Dwyer 3015MRS Photohelic,Switch/Gauge 0 to 15 in W.C

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Dwyer 3015MRS Photohelic,Switch/Gauge 0 to 15 in W.C Specification

Sensor Type
Differential Pressure

Grade
Industrial

Seal Material
Neoprene

Thread
1/8 NPT Female Process Connections

Display
Analog, with Visual LED Indicators

Bourdon Tube
Not Applicable (Uses Diaphragm Sensing Element)

Outer Size
Standard 4 Diameter Case

Material
Die-cast Aluminum Case, Polycarbonate Lens

Dial Material
Polycarbonate

Pointer Material
Aluminum

Processing Type
Photohelic (Photoelectric Sensing with Piezo-Resistive Element)

Diameter
4 inches (101.6 mm)

Glass Size
Full Front Polycarbonate Window

Mount Type
Flush or Surface Mount

Scale Range
0 to 15 inches W.C. (Water Column)

Accuracy
2% of Full Scale

Finishing
Powder Coated and Anodized Aluminum Housing

Measure Pressure Of
Air and Compatible Gases

Accessories
Mounting Screws, Installation Manual

Dwyer 3015MRS Photohelic,Switch/Gauge 0 to 15 in W.C Trade Information

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

Main Export Market(s)
Australia, North America, South America, Eastern Europe, Middle East, Central America, Western Europe, Asia, Africa

Main Domestic Market
All India

About Dwyer 3015MRS Photohelic,Switch/Gauge 0 to 15 in W.C

Dwyer 3015MRS Photohelic,Switch/Gauge 0 to 15 in W.C

Pressure switch/gage, range 0-15" w.c., .50 minor divisions.

Model: 3015MRS

Combine the functions of a precise, highly repeatable differential pressure switch with a large easy-to-read analog pressure gauge employing the durable, time-proven Magnehelic gauge design. Versatile electromechanical relays with gold over silver contacts - ideal for dry circuits.

Dwyer 3015MRS Photohelic, Switch/Gauge 0 to 15 in W.C.

Using solid state technology, there Series 3000MR and 3000MRS Photohelic switch/gauges combine the functions of a precise, highly repeatable differential pressure switch with a large easy-to-read analog pressure gage employing the durable, time-proven Magnehelic gage design. Switch setting is easy to adjust with large external knobs on the gage face. Gage reading is unaffected by switch operation - will indicate accurately even if power is interrupted. Solid state design now results in greatly reduced size and weight. Units can be flush mounted in 4-13/16" (122 mm) hole or surface mounted with hardware supplied. 3000MR models employ versatile electromechanical relays with gold over silver contacts - ideal for dry circuits. For applications requiring high cycle rates, choose 3000MRS models with SPST (N.O.) solid state relays. All models provide both low and high limit control and include 18-inch (45 cm) cable assemblies for electrical connections.

Gage accuracy is 2% of full scale and switch repeatability is 1%. Switch deadband is one pointer width - less than 1% of full scale. Compatible with air and other non-combustible, non-corrosive gases, they can be used in systems with pressures to 25 psig (1.725 bar).

Advanced Differential Pressure Measurement

The Dwyer 3015MRS utilizes a photoelectric sensing element with a piezo-resistive diaphragm, ensuring reliable measurement of differential pressure across air handling systems. Its wide scale range from 0 to 15 inches W.C. and high repeatability make it ideal for critical HVAC monitoring applications where precision is crucial.

Built for Industrial Environments

With its durable die-cast aluminum housing and IP54-rated enclosure, the 3015MRS is designed to withstand dust and splashing, making it suitable for demanding industrial situations. The device also features a scratch-resistant polycarbonate dial and lens for long-term clarity, and it offers flexible mounting options for flush or surface installations.

FAQs of Dwyer 3015MRS Photohelic,Switch/Gauge 0 to 15 in W.C:

Q: How do I adjust the switch set points on the Dwyer 3015MRS Photohelic gauge?

A: The Dwyer 3015MRS Photohelic is equipped with two independent SPDT electronic switches. You can adjust the low and high set points externally, allowing precise control of your switch settings without removing the enclosure, which simplifies setup and ongoing adjustments.

Q: What process media is the Dwyer 3015MRS suitable for measuring?

A: This gauge is designed to measure differential pressure of air and compatible gases only. It is not intended for use with liquids or aggressive gases not compatible with neoprene seals and polycarbonate components.

Q: Where should the Photohelic Switch/Gauge be installed for optimal performance?

A: Install the 3015MRS on rigid ducts or panels where robust flush or surface mounting is possible. Ensure installation in environments within its temperature rating of 20 to 120F and protect from excessive vibration or corrosive atmospheres to maintain accuracy and longevity.

Q: What benefits do the built-in LED indicators provide during usage?

A: The visual LED indicators instantly alert you to the status of each switch set point, making monitoring straightforward and reducing the chance of overlooked alarms. This enhances operational safety and simplifies maintenance checks.

Q: What is the process for connecting the 3015MRS electrical terminals?

A: Wiring the device involves connecting control circuitry to the screw terminals, carefully observing the contact ratings of 5A @ 120/240VAC and 3A @ 28VDC. Refer to the included installation manual for a detailed wiring diagram and recommended safety procedures.

Q: How accurate and repeatable are the pressure readings from this device?

A: The Photohelic gauge provides pressure readings with an accuracy of 2% of full scale and repeatability of 1%, ensuring reliable measurement performance for industrial applications such as fan, blower, or filter monitoring.

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