ENVIRO TECH INDUSTRIAL PRODUCTS
GST : 07AOSPS8386M1ZM

Call us now

08045477767

Dwyer 3030MRS Photohelic Switch/Gauge 0 to 30 inch

Send Inquiry

Request To Call Back

Dwyer 3030MRS Photohelic Switch/Gauge 0 to 30 inch

Get a Price/Quote

Dwyer 3030MRS Photohelic Switch/Gauge 0 to 30 inch Specification

Seal Material
Silicone Rubber

Grade
Industrial

Thread
1/8 NPT Female

Display
Analog & Dual Switches

Bourdon Tube
Not Applicable (Diaphragm based)

Outer Size
4-1/2 inches (115 mm) dia. case

Sensor Type
Photohelic Pressure Sensor

Material
Aluminum Case, Polycarbonate Cover

Dial Material
Polycarbonate

Pointer Material
White Aluminum

Processing Type
Die Cast Aluminum Housing

Diameter
115 mm (4-1/2 in)

Glass Size
4-1/2 inches (115 mm)

Mount Type
Flush or Surface Mount

Scale Range
0 to 30 inch w.c. (Water Column)

Accuracy
2% of Full Scale

Finishing
Black Anodized Aluminum Front Bezel

Measure Pressure Of
Air and Non-corrosive Gases

Accessories
Mounting Bracket, Screws, Electrical Connectors

Dwyer 3030MRS Photohelic Switch/Gauge 0 to 30 inch Trade Information

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

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

Main Domestic Market
All India

About Dwyer 3030MRS Photohelic Switch/Gauge 0 to 30 inch

Dwyer 3030MRS Photohelic Switch/Gauge 0 to 30 inch

Series 3000MR/3000MRS Photohelic® Switch/Gage

Combines Differential Pressure Gage with Low/High Set-Points,Compact Size

Model	Description
3030MRS-30 inch	Pressure Switch/Gage,Range 0-30 inch, 1.0 minor divisions.

Includes

mounting ring, snap ring
18" cable assembly
(2) 3/16" tubing to 1/8" NPT adapters
(2) 1/8" NPT pipe plugs
(4) 6-32 x 1-1/4" RH machine screws (panel mounting)
(3) 6-32 x 5/16" RH machine screws (surface mounting)

he Series 3000MR Photohelic® Switch/Gage 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" hole or surface mounted with hardware supplied. 3000MR models employ versatile electromechanical relays with gold over silver contacts - ideal for dry circuits.

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.

Applications

Fan Control
Damper Control
Environmental Pollution Control

Approvals

CE Approval
GOST-R Certificate

Specification

Service	Air and non-combustible, compatible gases
Accuracy	±2% of FS at 70°F
Pressure Limits	-20" Hg to 25 psig
Temperature Limits	20 to 120°F
Process Connections	1/8 female NPT (duplicated side and back)
Size	4" dial face, 5" O.D. x 3-1/8"
Weight	1.8 lb
Switch Specifications
Switch Type	Each setpoint has 1 Form C relay (SPDT)
Relay Contacts	(resistive load) 1 Form C rated 1.0A @ 30 VDC, 0.3A @ 110 VDC or 0.5A @ 125 VAC. Gold over clad silver - suitable for dry circuits
Electrical Connections	18" cable assembly with 8 conductors
Power Requirements	24 VDC, regulated ±10%
Mounting Orientation	Diaphragm in vertical position
Set Point Adjustment	Adjustable knobs on face
Agency Approvals	CE

Precise Industrial Pressure Management

Engineered to measure the pressure of air and other non-corrosive gases, the Dwyer 3030MRS Photohelic Switch/Gauge ensures precise monitoring with 2% full-scale accuracy. Its diaphragm-based design eliminates the need for a Bourdon tube and the dual set points allow automatic control for process stability. With a 30-inch w.c. scale, it effectively suits HVAC, filtration, and clean room applications.

Durable Construction for Rigorous Environments

Protected by a die-cast aluminum housing and a polycarbonate cover, this Photohelic gauge withstands harsh industrial conditions. The black anodized aluminum front bezel enhances corrosion resistance, while the NEMA 2 (IP42) enclosure meets general indoor protection needs, making the unit especially reliable for Indian manufacturers, suppliers, and traders.

FAQs of Dwyer 3030MRS Photohelic Switch/Gauge 0 to 30 inch:

Q: How is the Dwyer 3030MRS Photohelic Switch/Gauge installed?

A: The gauge supports both flush and surface mounting, offering flexibility based on your equipment setup. It comes with a mounting bracket, screws, and electrical connectors for straightforward installation. Screw terminals simplify electrical connections.

Q: What types of substances can this gauge measure pressure for?

A: The Dwyer 3030MRS is specifically designed to measure the pressure of air and non-corrosive gases, providing versatility for various clean industrial applications such as HVAC, filtration, and process control.

Q: Where is this switch/gauge commonly used?

A: It is widely employed in industrial settings across India, including manufacturing plants, HVAC systems, clean rooms, and process control environments where precise air or gas pressure measurement and switching are critical.

Q: When should the set points be adjusted?

A: Set points should be adjusted during initial setup to match your process requirements or whenever system parameters change. The dual set points are fully adjustable across the devices range, allowing tailored pressure control.

Q: What are the benefits of the analog and dual switch display?

A: The combination of an analog display and dual switches allows for continuous visual monitoring alongside automatic switching at defined pressure set points, providing both real-time status and process automation, enhancing operational safety and efficiency.

Q: How does the instantaneous response time impact usage?

A: The electromechanical switches react instantaneously to pressure changes, enabling real-time process control and rapid system protection against overpressure or vacuum situations.

Tell us about your requirement