About Dwyer 3000MR Photohelic,Switch/Gauge 0 to 1kpa

Dwyer 3000MR Photohelic,Switch/Gauge 0 to 1kpa

Series 3000MR/3000MRS Photohelic® Switch/Gage

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

Model	Description
3000MR-1kpa	Pressure Switch/Gage,Range 0-1 kPa, .02 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). 

Dual Functionality for Precision Control

The Dwyer 3000MR Photohelic uniquely offers both pressure indication and switching capabilities in one compact, rugged instrument. With two SPDT, independently adjustable setpoints, users can automate processes while monitoring pressure in real-time. This dual functionality is ideal for maintaining safety and efficiency in industrial systems.


Robust Design for Industrial Environments

Manufactured with a die-cast aluminum case and an acrylic lens, the 3000MR is built to withstand challenging conditions. Its NEMA 2 (IP42) rated front offers enclosure protection against dust and accidental contact. The unit supports continuous pressure up to 25 kPa and peaks to 35 kPa, ensuring reliability and durability in harsh settings.


User-Friendly Installation and Operation

The Photohelic 3000MR is designed for ease of installation, featuring straightforward screw terminal wiring and versatile mounting optionsflush or surface. Pressure setpoints and zero adjustment are accessible from the front panel, facilitating quick calibration and reducing downtime for maintenance.