Dwyer 3100MRS Photohelic,Switch/Gauge 0 to 100 in W.C

About Dwyer 3100MRS Photohelic,Switch/Gauge 0 to 100 in W.C

Dwyer 3100MRS Photohelic,Switch/Gauge 0 to 100 in W.C

Pressure switch/gage, range 0-100" w.c., 2.0 minor divisions.

Model: 3100MRS

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 3100MRS Photohelic, Switch/Gauge 0 to 100 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 Monitoring and Switching

The Dwyer 3100MRS Photohelic combines the functions of a pressure gauge and a relay switch in a single unit. Featuring two user-adjustable set-points and 2% full scale accuracy, it enables precise monitoring and automatic control of differential air pressures. Its photohelic sensor technology ensures reliable and responsive management for industrial applications.


Robust Construction for Industrial Use

Housed in a die-cast aluminum case with a textured gray finish, the 3100MRS is built to withstand demanding environments. IP54 and NEMA 2 enclosure ratings protect the internal components, while the high-quality polycarbonate dial and silicone seals offer durability and clarity for easy reading. The device is ideal for OEMs, suppliers, and wholesalers in industries across India.


User-Friendly Installation and Maintenance

This gauge is designed for straightforward panel mounting, with included hardware and a comprehensive instruction manual. Vertical orientation is preferred for optimal performance. With minimal wiring and no external power needed for the gauge, installation and maintenance are quick and efficient, making it a hassle-free choice for both retrofit and new projects.