Dwyer 3000MR-0 Photohelic Differential Pressure Switch/Gauge RANGE 0-0.5"w.c.

About Dwyer 3000MR-0 Photohelic Differential Pressure Switch/Gauge RANGE 0-0.5"w.c.

Dwyer 3000MR-0 Photohelic Differential Pressure Switch/Gauge.

Pressure switch/gage, range 0-0.5" w.c., .01 minor divisions.

Model: 3000MR-0

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 3000MR-0 Photohelic, Switch/Gauge 0 to 0.5 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).

Range 0-0.5" W.C., .01 minor divisions 

Precise Dual-Function Monitoring and Control

The Dwyer 3000MR-0 delivers both accurate differential pressure measurement and reliable switching in a single device. With two independent set pointers on the analog dial, users can conveniently set high and low pressure thresholds through the gauge face, ensuring optimal process control and system protection in air handling units, filtration monitoring, or cleanroom applications.


Rugged Construction Designed for Industrial Demands

Featuring a die-cast aluminum case and a black textured finish, this Photohelic switch/gauge is constructed for long-term use in harsh industrial environments. Its vertical mounting, polycarbonate cover, and durable components help maintain accuracy and longevity, while simple screw terminal connections streamline installation and maintenance.


Flexible Installation with Comprehensive Accessories

Everything needed for quick setup is includeda mounting bracket, hardware kit, and operation manual. With a compact 4-inch diameter and options for flush or surface mounting, this gauge adapts seamlessly to varied panel or wall configurations, ideal for manufacturers, suppliers, and wholesalers seeking reliable differential pressure control solutions.