Dwyer 3000MR Photohelic,Switch/Gauge 0 to 125 PAC

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Dwyer 3000MR Photohelic,Switch/Gauge 0 to 125 PAC Specification

Outer Size
Approximately 127 mm (5 inches) diameter

Seal Material
Silicone Rubber

Display
Analog Dial

Grade
Industrial

Thread
1/8 NPT Female Connection

Sensor Type
Photoelectric Differential Pressure Sensor

Material
Die-cast Aluminum Housing

Dial Material
Polycarbonate

Pointer Material
Aluminum

Processing Type
Precision Assembled

Diameter
5 inches (127 mm)

Glass Size
5 inches

Mount Type
Panel Mount

Scale Range
0 to 125 PaC (Pascal, Cleanrooms)

Accuracy
2% of full scale

Finishing
Powder Coated and Anodized Aluminum

Measure Pressure Of
Air and Non-corrosive Gases

Accessories
Mounting bracket, installation manual

Dwyer 3000MR Photohelic,Switch/Gauge 0 to 125 PAC 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, Eastern Europe, Middle East, Western Europe, Central America, South America, Asia, North America, Africa

Main Domestic Market
All India

About Dwyer 3000MR Photohelic,Switch/Gauge 0 to 125 PAC

Dwyer 3000MR Photohelic,Switch/Gauge 0 to 125 PAC

Series 3000MR/3000MRS Photohelic® Switch/Gage

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

Model	Description
3000MR-125PA	Pressure Switch/Gage, Range 0-125 Pa, 5.0 minor divisions.

Using solid state technology, the SERIES 3000MR AND 3000MRS Photohelic® Switch/Gages 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 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.

Compatible with air and other non-combustible, non-corrosive gases, they can be used in systems with pressures to 25 psig (1.725 bar). Optional construction is available for use to either 35 psig (2.42 bar) or 80 psig (5.51 bar).

Included Accessories: mounting ring, snap ring; 18" (45 cm) 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); and (3) 6-32 x 5/16" RH machine screws (surface mounting).

Precision Monitoring for Cleanroom Environments

The Dwyer 3000MR is ideal for environments where stringent air pressure control is paramount. With an accuracy of 2% full scale and an instant response relay action, its perfect for cleanrooms, laboratories, and critical HVAC applications. Its analog dial is easy to read, ensuring reliable, real-time monitoring and process control.

Robust Design with User-Friendly Features

Featuring a die-cast aluminum housing and polycarbonate components, this Photohelic gauge is built for durability and longevity. The recommended vertical mounting orientation and supplied bracket make installation straightforward, while the IP54 enclosure rating provides substantial protection from dust and moisture.

FAQs of Dwyer 3000MR Photohelic,Switch/Gauge 0 to 125 PAC:

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

A: To install the device, use the included mounting bracket for panel mounting in a recommended vertical orientation. Connect the process connections to the 1/8 NPT female ports, and wire the relays and power supply according to the provided installation manual. Ensure the unit is secured tightly and check the enclosure rating for your environment.

Q: What type of pressures can the 3000MR measure, and what is its accuracy?

A: The 3000MR is calibrated to measure differential pressures from 0 to 125 Pascal, suitable for air and non-corrosive gases. It offers a high level of accuracy, within 2% of the full scale, making it suitable for precise monitoring applications.

Q: When should I use the SPDT relay outputs of this gauge?

A: You should utilize the SPDT relay outputs (2 form C relays) to automate control processes such as alarm triggering or fan operation whenever the monitored pressure meets your setpoints. With electrical ratings of 5 A @ 120/240 VAC, these relays are well-suited for most automation requirements.

Q: Where is the Dwyer 3000MR commonly used?

A: This device is widely used in cleanrooms, HVAC systems, laboratories, and other controlled industrial settings in India where accurate air and gas pressure management is required. Its robust construction and CE marking ensure reliability in demanding environments.

Q: What benefits does the instantaneous switch action provide?

A: The Photohelic gauge delivers instantaneous relay switch action, ensuring that control actions such as alarm activation or equipment shutdowns occur immediately when pressure thresholds are exceeded, thus protecting sensitive processes and minimizing risk.

Q: How does the enclosure rating and housing material impact durability?

A: The IP54 enclosure and die-cast aluminum housing, finished with powder coating and anodizing, protect the internal components against dust, splashes, and mechanical stress, facilitating long-term use even in challenging industrial environments.

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