ISF1 ELECTRO-PNEUMATIC CONTROL VALVE0 pages

BRISF1 table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:5.00pt "Comic Sans MS", fantasy; } .font1 { font:30.00pt "Impact", sans-serif; } .font2 { font:9.00pt "Times New Roman", serif; } .font3 { font:10.00pt "Times New Roman", serif; } .font4 { font:11.00pt "Times New Roman", serif; } .font5 { font:17.00pt "Times New Roman", serif; } .font6 { font:19.00pt "Times New Roman", serif; } PROPORTION ISF1 ELECTRO-PNEUMATIC CONTROL VALVE m FM approved NEMA 4 rated Vacuum through 150 psig ranges Low pressure ranges Can be field calibrated Threaded exhaust port 12Vdc supply voltage m m m m m m FUNCTIONAL DESCRIPTION The ISF1 sries control valve is an electronic pressure regulator designed to precisely control the pressure of gaseous media proportional to a 4-20mA command signal. The ISF1 operates using two normally closed solenoid valves, a pressure sensor, and a control circuit. One valve is actuated to allow supply media into the system. The second valve is actuated to allow working media to vent. The pressure sensor provides feedback to the control circuit. The control circuit compares the pressure sensor feedback to the user supplied electronic command signal and actuates the appropriate valve until the two signals match. The ISF1 series can be teamed with a variety of one-to-one ratio pressure volume boosters for even greater flow. GENERAL SPECIFICATIONS ELECTRICAL Supply Voltage......................12Vdc-14.5Vdc (MAX) Supply Current.....................<80mA Command Signal...................4-20mA Differential Command Signal Impedance.....100 OHM PHYSICAL Operating temperature.............32-104°F (0-40°C) (T4) Weight...............................2 lb. (0.91 kg) Protection Rating...................NEMA 4 Housing..............................Blue Anodized Aluminum MECHANICAL Pressure ranges..................29.9 in. Hg (VAC) -150 psig Output Pressure..................0-100% of range Flow Rate.........................0.80 SCFM @ 80 psig Min. Closed End Volume......1 in3 Filtration Required..............40 micron Linearity/Hysterisis..............< 0.4% F.S. B.F.S.L Repeatability......................< 0.2% F.S. Accuracy..........................< 0.5% F.S. Wetted Parts............Elastomers-Fluorocarbon Manifold-Aluminum (Brass optional) Transducer-Silicon, Aluminum,RTV Valves-Nickel Plated Brass HAZARDOUS AREA CLASSIFICATION Factory Mutual Approval: Non-Incendive for Class I Division 2 Groups C & D with intrinsically safe process connections for Class I, Division 1, Groups A, B, C and D Suitable for Class II Division 2 Groups F & G with intrinsically safe process connections for Class II, Division 1, Groups E, F and G Suitable for Class III, Division 2 with intrinsically safe process connections for Class III indoor/outdoor (Type4X) hazard- ous (classified) locations Special Conditions for Use: 1. With intrinsically safe process connections. BRISF1 4/30/04 NK