Dwyer 3050MRS Photohelic,Switch/Gauge 0 to 50 in W.C
Dwyer 3050MRS Photohelic,Switch/Gauge 0 to 50 in W.C

Dwyer 3050MRS Photohelic,Switch/Gauge 0 to 50 in W.C

Dwyer 3050MRS Photohelic,Switch/Gauge 0 to 50 in W.C Specification

  • Seal Material
  • Buna-N
  • Thread
  • 1/8 female NPT high and low pressure taps
  • Display
  • Analog and Setpoint Relay
  • Grade
  • Industrial
  • Outer Size
  • Standard
  • Sensor Type
  • Photohelic Differential Pressure
  • Material
  • Die-cast aluminum case, acrylic cover
  • Dial Material
  • Acrylic
  • Pointer Material
  • Aluminum
  • Processing Type
  • Factory Assembled
  • Diameter
  • 4 inches
  • Glass Size
  • 4 inches dial
  • Mount Type
  • Flush or Surface Mount
  • Scale Range
  • 0 to 50 in W.C. (inches of water column)
  • Accuracy
  • 2% of full scale
  • Finishing
  • Textured enamel-finished die-cast aluminum housing
  • Measure Pressure Of
  • Air and Non-combustible, compatible gases
  • Accessories
  • Mounting hardware, instruction manual
 

Dwyer 3050MRS Photohelic,Switch/Gauge 0 to 50 in W.C 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, Central America, South America, Eastern Europe, Western Europe, Middle East, Africa, Asia, North America
  • Main Domestic Market
  • All India
 

About Dwyer 3050MRS Photohelic,Switch/Gauge 0 to 50 in W.C

Dwyer 3050MRS Photohelic,Switch/Gauge 0 to 50 in W.C

Pressure switch/gage, range 0-50" w.c., 1.0 minor divisions.

Model: 3050MRS

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 3050MRS Photohelic, Switch/Gauge 0 to 50 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). 



Precision Differential Pressure Control

With its instant response time and highly accurate analog display, the Dwyer 3050MRS Photohelic offers precise monitoring and control of differential pressures in air or compatible non-combustible gases. The adjustable setpoints provide flexible switching for automated processes requiring exact threshold management.


Rugged Design for Industrial Environments

Housed in textured enamel-finished die-cast aluminum, the gauge is engineered to endure tough workplaces. The NEMA 1 (IP20) enclosure and factory assembly ensure safety and durability, while the front-accessible knobs make setup and adjustment straightforward, minimizing downtime during maintenance.


Versatile Mounting Options

The unit can be flush or surface mounted, adapting easily to existing installations. Vertical orientation is preferred for optimal performance, but the devices construction supports varied industrial layouts. All mounting hardware and instruction manuals are included, simplifying installation for users.

FAQs of Dwyer 3050MRS Photohelic,Switch/Gauge 0 to 50 in W.C:


Q: How do I adjust the setpoints on the Dwyer 3050MRS Photohelic switch/gauge?

A: To set or modify the pressure switch setpoints, simply use the external front-accessible knobs. These can adjust both upper and lower setpoints without dismantling the enclosure, making configuration fast and intuitive.

Q: What type of pressures can this gauge measure?

A: The Dwyer 3050MRS is designed to measure differential pressure of air and non-combustible, compatible gases within a range of 0 to 50 inches of water column.

Q: Where is the preferred installation orientation for this unit?

A: For the most accurate operation, the gauge should be installed vertically. However, it can be flush or surface mounted as space and application requirements dictate.

Q: What are the main benefits of using this Photohelic switch/gauge in industrial settings?

A: It combines accurate pressure monitoring with instantaneous mechanical switching, supports high electrical loads, and offers reliability, making it suitable for automation, HVAC, and process control in industrial plants.

Q: When should the zero adjustment feature be used?

A: Use the external zero adjustment knob whenever you notice baseline drift in pressure readings or after installation, ensuring ongoing accuracy for your measurements.

Q: Which accessories come included with the device?

A: The gauge includes all mounting hardware and an instruction manual, allowing for quick setup and operation out of the box.

Q: What is the process for surface or flush mounting this gauge?

A: Mounting is straightforward: align the gauge with your prepared panel or surface, secure it using the supplied hardware, and connect the high and low pressure taps. Detailed instructions are provided in the manual.

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