Dwyer A3001 Photohelic Pressure Switch Gauge

About Dwyer A3001 Photohelic Pressure Switch Gauge

Dwyer A3001 Photohelic Pressure Switch Gauge Range 0-1.0 Inch w.c

Dwyer A3001 Photohelic Pressure Switch/Gauge, 0-1" WC, 1/8" NPT(F)

Dwyer  Item # WW-68062-26

3-in-One Indicating gauge, low-limit and high-limit control

set points and zero are easily adjusted on front of gauge

MORE ABOUT THIS ITEM

The Photohelic Switch/Gauge functions as versatile, highly repeatable pressure switches combined with a precise pressure gauge employing the time-proven Magnehelic gauge design. The Photohelic switch/gauge measures and controls positive, negative or differential pressures of air and compatible gases. Two phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust setpoint indicators are controlled by knobs located on the gauge face. Individual setpoint deadband is one pointer width - less than 1% of full scale.Setpoints can be interlocked to provide variable deadband - ideal for control of fans, dampers,etc.Gauge reading is continuous and unaffected by switch operation, even during loss of electrical power.In typical applications, these switch/gauges control between high and low pressure set points. When pressure changes, reaching either set point pressure, the infrared light to the limiting phototransistor is cut off by the helix-driven light shutter. The resulting phototransistor signal is electronically amplified to actuate its DPDT slave relay and switching occurs. Dead band between make and break is 1% of full scale or less - just enough to assure positive, chatter-free operation. A plastic housing protects all electronic components. Solid-state and integrated circuit electronics are on glass-epoxy printed circuit boards and self-extinguishing terminal boards.

Photohelic Switch/Gauges are used to control pressures in air conditioning systems, clean rooms, fluidic and pneumatic control systems, materials handling equipment, alarm or control fume exhaust systems, control pressure in air structures, and monitor respiratory and blood pressures.

Warning: This product is not approved or intended for,and should not be used for medical,clinical, surgical or other patient oriented applications.

Specifications & Description

Accuracy:2% full-scale at 70F (21C)

Dial Size:(in)4

Dial Size:(mm)102

Min Pressure:(in WC)0

Max Pressure:(in WC)1

Min Temperature:(F)20

Max Temperature:(F)120

Min Temperature:(C)7

Max Temperature:(C)60

Case:Aluminum

Lens:Material Polycarbonate

Process Connection:1/8" NPT(F)

Unit Of Measurement":WC

Display:Analog dial

Battery Type:120 VAC,50/60 Hz

Electrical Connections:Screw terminal

Switch output:10 A at 120/240 VAC/28 VDC

Output:DPDT

Media:Compatibility Air and noncombustible,noncorrosive gases

Description:Photohelic Pressure Switch/Gauge,0-1" WC,1/8" NPT(F)

Accurate and Versatile Measurement

The Dwyer A3001 Photohelic Pressure Switch Gauge delivers 2% full-scale accuracy at 70F (21C), ensuring precise readings in demanding industrial applications. Its scale covers a 0-1.0 inch water column range, making it ideal for sensitive pressure monitoring of steam, gas, or oil systems. This versatility allows it to adapt to a wide range of process requirements.


Rugged Construction and Flexible Finishing

Constructed from high-quality metal alloys, the A3001 promises durability in rigorous environments. Available in matte, polished, galvanized, or antique finishes, it caters to both practical and aesthetic needs. Its panel-mount design and clear plastic dial enhance usability, while the aluminum pointer offers reliable indication.


Industrial Applications and Compatibility

Manufactured in India and designed for air, noncombustible, and noncorrosive gases, the A3001 finds its use in numerous industries, from process plants to HVAC. Its adaptability ensures seamless integration into existing pressure control systems, while maintaining maximum safety and efficiency.