The series mp mini photohelic differential pressure switchgage combines the time proven minihelic ii differential pressure gage with two spdt switching set points. To accomplish this use one set point relay to reset the other as shown in the wiring diagram figure g.
A 464 Magnehelic Differential Pressure Gage Mounting Kit
Dwyer photohelic wiring diagram. To accomplish this use one setpoint relay to reset the other as shown in the wiring diagram fig. Dwyer photohelic wiring diagram wiring diagram is a simplified conventional pictorial representation of an electrical circuit. The series a3000 photohelic switchgages function as versatile highly repeatable pressure switches combined with a precise pressure gage employing the time proven magnehelic gage design. Series a3000 photohelic differential pressure switchgage specifications installation and operating instructions bulletin b 33 a the series a3000 photohelic switchgage is a versatile 2 in 1 instrument combining a time proven magnehelic differential pressure gage with lowhigh pressure switches. Control fans dampers pumps etc between the set points of a photohelic sgt. View and download dwyer instruments series a3000 photohelic installation and operating instructions online.
Contacts of sp1 relay would be connected to the s2 reset terminals on the rear of the. The series a3000 photohelic switchgages function as versatile highly repeatable pressure switches combined with a precise pressure gage employing the time proven magnehelic gage design. Series a3000 photohelic differential pressure switchgage specifications installation and operating instructions bulletin b 33 a dwyer instruments inc. Box 373 michigan city indiana 46361 usa. Gage reading is unaffected by switch operation. The mini photohelic switchgage is designed to measure and control positive negative or differential pressures consisting of non combustible and non corrosive gases.
In this typical application the load for instance a fan would be connected to the nc. It shows the components of the circuit as simplified shapes and the faculty and signal links amid the devices. The photohelic switchgage measures and controls positive negative or differential pressures of air and compatible gases. Using solid state technology the series 3000mr3000mrs photohelic switchgages 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. Standard models are rated to 25 psig 17 bar with options to 35 24 or 80.
In this typical application the load would be connected to the nc. Standard models are rated to 25 psig 17 bar with options to 35 24 or 80. Contacts of the right set point relay section a figure d. Series a3000 photohelic switch pdf manual download. Contacts nc2 of the right set point relay sp2. The photohelic switchgage measures and controls positive negative or differential pressures of air and compatible gases.
Gallery of Dwyer Photohelic Wiring Diagram
