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Dwyer 3000MR Photohelic Switch/Gauge 0 to 100 MM

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Dwyer 3000MR Photohelic Switch/Gauge 0 to 100 MM

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Dwyer 3000MR Photohelic Switch/Gauge 0 to 100 MM Specification

Outer Size
178 mm x 178 mm (approx.)

Seal Material
Neoprene

Display
Analog

Sensor Type
Photohelic Switch/Gauge

Thread
Panel Mount Thread

Grade
Industrial

Material
Die-cast Aluminum

Dial Material
Polycarbonate

Pointer Material
Aluminum

Processing Type
Precision Calibrated

Diameter
178 mm (Face Diameter)

Glass Size
124 mm (Viewing Area Diameter)

Mount Type
Flush Panel Mount

Scale Range
0 to 100 mm

Accuracy
2% of Full Scale

Finishing
Matte Black Housing

Measure Pressure Of
Air and Non-corrosive Gases

Accessories
Mounting Screws, Instruction Manual

Dwyer 3000MR Photohelic Switch/Gauge 0 to 100 MM Trade Information

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

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

Main Domestic Market
All India

About Dwyer 3000MR Photohelic Switch/Gauge 0 to 100 MM

Dwyer 3000MR Photohelic,Switch/Gauge 0 to 100 MM

Series 3000MR/3000MRS Photohelic® Switch/Gage

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

Model	Description
3000MR-100MM	Pressure Switch/Gage,Range 0-100MM, 2.0 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

Seamless Pressure Control and Monitoring

The Dwyer 3000MR Photohelic Switch/Gauge ensures accurate air and non-corrosive gas pressure monitoring for industrial settings. Its analog display and precision calibration lend confidence to critical processes requiring both monitoring and integrated switching capabilities. Dual SPDT relays with instantaneous response allow for seamless automation, reducing manual oversight and enhancing safety in operations.

Built for Industrial Performance

Housed in a matte-finished, die-cast aluminum enclosure rated NEMA 4X (IP66), this gauge stands up to harsh environments while maintaining accuracy. The flush panel mount and front-accessible adjustment knobs streamline installations and set point changes. Suitable for continuous operation in temperatures ranging from -18C to 60C, its favored across manufacturing and industrial sectors nationwide.

FAQs of Dwyer 3000MR Photohelic Switch/Gauge 0 to 100 MM:

Q: How do I install the Dwyer 3000MR Photohelic Switch/Gauge?

A: The 3000MR is installed using the included mounting screws, fitting into a panel mount thread with a flush panel mount. Electrical wiring is made via screw terminals, and installation must be completed following the instructions in the manual for safe and accurate setup.

Q: What type of measurements can the Dwyer 3000MR handle?

A: This model measures differential pressure of air and non-corrosive gases within a range of 0 to 100 mm. Its analog dial ensures clearly readable values for effective process monitoring.

Q: When should I use the set point adjustment knobs?

A: Set point adjustment knobs are used when setting or modifying the pressure values at which the dual SPDT relay switches activate. These adjustments can be made anytime from the front-accessible panel without disassembly, allowing for quick changes during commissioning or routine process modifications.

Q: Where can the Dwyer 3000MR be deployed?

A: The enclosures IP66 (NEMA 4X) rating allows the 3000MR to be installed in demanding indoor or outdoor industrial locations. Its robust build makes it suitable for manufacturing, handling plants, HVAC, and similar applications in India.

Q: What is the process to calibrate or maintain accuracy on this gauge?

A: The 3000MR comes precision calibrated. For continued accuracy (2% of full scale), regular inspection and calibration checks should be performed as per the manufacturers guidelines, especially after heavy wear or process changes.

Q: How does the dual SPDT relay switching benefit my application?

A: Dual SPDT relay switches provide automated control functions, such as triggering alarms or operating external devices based on pressure thresholds, thus reducing manual monitoring and increasing reliability and safety in your system.

Q: What are the key benefits of choosing the Dwyer 3000MR Photohelic Switch/Gauge?

A: The main advantages include real-time visual monitoring, seamless automation through instantaneous switching, robust industrial construction, easy front-panel adjustments, and compliance with RoHS and CE standards, ensuring safe and environmentally conscious operation.

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