Mini Photohelic Differential Pressure Gauge

Mini Photohelic Differential Pressure Gauge Mini-Photohelic differential pressure switch/gauge combines the time proven Minihelic II differential pressure gauge with two SPDT switching set points The Mini-Photohelic switch/gauge is designed to measure and control positive, negative, or differential pressures consisting of non-combustible and non-corrosive gases Gauge reading is independent of switch operation Switching status is visible by LED indicators located on the front and rear of the gauge Setpoints are adjusted with push buttons on back of unit This extremely compact switch/gauge is ideal for fume hoods, dust collection, pneumatic conveying and clean room applications Gauge specifications • Service: air and non-combustible, compatible gases • Wetted materials: consult factory • Accuracy: ±5% of FS @ 70°F (21.1°C), gauge face mounted in vertical position • Pressure limits: 30 psig (2.067 bar) • Temperature limits: 20 to 120°F (-6.7 to 49°C) • Process connections: barbed for 3/16″ I.D. tubing, 1/8″ male NPT optional • Size: 4-1/8″ (104.78mm) depth x 3-1/16″ (77.79mm) diameter • Weight: 23oz (652g) • Switch specifications: • Switch type: (2) SPDT relays • Electrical rating: 5A @ 120/240V AC resistive, 5A @ 30V DC • Electrical connections: screw type terminal block, accepts 22-12 AWG wire • Power requirements: 24V DC/24V AC 50Hz/60Hz 4W • Mounting orientation: gauge face in vertical position • Setpoint adjustment: pushbuttons • Standard accessories: (2) mounting screws, (1) .050″ hex Allen wrench • Agency approvals: CE, cUL, UL

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