Dwyer 3002MRS Photohelic, Switch/Gauge 0 to 2 in W.C

About Dwyer 3002MRS Photohelic, Switch/Gauge 0 to 2 in W.C

Dwyer 3002MRS Photohelic, Switch/Gauge 0 to 2 in W.C

Pressure switch/gage, range 0-2"w.c..05 minor divisions. 

Model: 3002MRS

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 3002MRS Photohelic, Switch/Gauge 0 to 2 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 0-2" W.C., .05 minor divisions 

Dual Functionality for Reliable Control

The 3002MRS Photohelic combines an easy-to-read analog gauge with two adjustable photoelectric switch relays, enabling accurate monitoring and automatic pressure control. Users benefit from the flexibility of visual inspection and automated response within a single compact unit. This dual capability streamlines installation and simplifies process management in a wide range of industrial settings.


Engineered for Harsh Industrial Environments

This gauge/switch is constructed with a die-cast aluminum housing, polycarbonate dial, and powder-coated case, offering both strength and durability. The front IP65 protection wards off dust and water, making it suitable for demanding applications. The products operating temperature range and corrosion-resistant materials ensure dependable operation in variable factory and processing plant conditions.


Precision and Efficiency in Pressure Management

With factory calibration to 2% FS accuracy and fast response times under one second, the 3002MRS supports high-precision control. Red setpoint markers on the analog display provide clear visual cues, while two independently adjustable SPDT relays allow users to configure alerts and process automation for enhanced efficiency and system protection.