Dwyer Series A3000 Photohelic Pressure Switch/Gage A3000-00,
The Series A3000 Photohelic® Pressure Switch/Gage functions as versatile,
highly repeatable pressure switches combined with a precise pressure gage employing
the time-proven Magnehelic® gage design.
The Photohelic® switch/gage measures and controls positive,
negative or differential pressures of air and compatible gases.
Standard models rate to 25 psig (1.7 bar),
with options to 35 (2.4) or 80 (5.5 bar) psig. Two phototransistor actuate,
DPDT relays include for low/high limit control.

