Dwyer 3003MRS Photohelic,Switch/Gauge 0 to 3 in W.C

About Dwyer 3003MRS Photohelic,Switch/Gauge 0 to 3 in W.C

Dwyer 3003MRS Photohelic,Switch/Gauge 0 to 3 in W.C

Pressure switch/gage, range 0-3" w.c., .10 minor divisions.

Model: 3003MRS

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 3003MRS Photohelic, Switch/Gauge 0 to 3 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). 

Accurate Differential Pressure Monitoring

The Dwyer 3003MRS Photohelic gauge is engineered for precise measurement of differential pressure across steam, oil, and gas systems. With a scale range of 0 to 3 inches of water column and 2% full-scale accuracy, it provides operators with reliable, real-time feedback. The sensitive diaphragm sensing element ensures swift response times, making it especially suitable for control and automation applications in demanding industrial environments.


Flexible Mounting and Robust Build

Designed for versatility, this gauge allows for panel or surface mounting with the included hardware and adapter. Its die-cast aluminum housing and black anodized finish lend durability and resistance to harsh operating conditions. The IP54-rated front ingress protection ensures reliable performance against dust and moisture, while the acrylic lens offers clear readability of the analog display even in challenging settings.