U215-A PRINTER

U215-A PRINTER

ate spare parts according to User’s Manual. Keep seal surface clean and flat as disassembly and reassembly. Store O-ring seal in sunproof place without evident temperature change in case of aging. Rubber and asbestos gasket, cork and rubber board and rubber seal In disassembling or reassembling cone-shaped seal structure pays much attention not to hurt or broken sublatae surfaces, cleaning waste. Chapter III Electric control system of fuel dispenser Article I Main functions of electric control system for fuel dispenser Fuel dispenser is operated under electric control, realizing refueling process. Its main function brief as followed: calculation of volume and sales: measuring CPU collect flow data from pulse sensor, and count volume and sales according to certain calculating method. Finally these data display on screen. Pulse sensor inspection: lock fuel dispenser as sensor occ fuel dispenser ur trouble. Starting motor, sto fuel dispenser p control, switch on and off solenoid valve. Display function: show various filling information on screen Dialogue function: filing staff realize general operation through keyboard, display screen and nozzle switch. Network communication function: all fuel dispenses in network are managed and controlled by centre-control computer. Article II Electric control system configuration of fuel dispenser 1. General structure Diagram 3-1 illustrated single nozzle fuel dispenser, mechanical section showed in broken line ---- also called hydraulic components, yet real line is showing the electric section (system) of fuel dispenser, including measuring main board, keyboard, display screen, control circuit of motor and solenoid valve, motor, solenoid valve, pulse sensor, nozzle switch, power supply board, junction box of AC current and communication box. Diagram 3-1: Structural sketch map of fuel dispenser mounted single nozzle There is little difference between double and single fuel dispenser in electric control system, the former having two sets of display screen, keyboard, a control of fuel dispenser

- - - -　　Description:　　 No state change.　　 n State change to n.　　 - Not applicable (state error).　　 Releasing of an unattended transaction entry.　　 Release　　NOTE: Refer paragraph 1.6 page 9.　　chs_100 STANDARD FORECOURT PROTOCOLJ. Carrier April 1998 - FINAL DRAFT 1.00　　 CARD HANDLING SERVER APPLICATION　　Page 34　　2.3.3.3 UNATTENDED TRANSACTION PAYMENT PROCESSING STATE DESCRIPTION　　2.3.3.3.1 WAIT TXN DATA 1　　 STATE DESCRIPTION　　 This state is entered to wait for sales device transaction data to be provided by the forecour fuel dispenser t sales　　WAIT FOR　　 fuel dispenser process.　　TXN DATA　　 EVENT DESCRIPTION　　MAIN STATE In this state any attempt to close the Main State will result in the Main State going to the CLOSING　　CHANGE state.　　 Action: None.　　TIME-OUT When CHSSC_AckTimer (refer System Configuration data base) expires or an internal Card Issuer　　 timer expires the UTP task sends a minor error and moves to the TXN ERROR state. For incomplete　　 transactions see Recovery Data event in the MT OPEN state description.　　 Action: The UTP task sends the unsolicited data CHSATPE_Status and CHSEC_ErrMsg2.　　 When the CHSUTPE_Process command is received from a controller device the UTP task moves into　　PROCESS　　 the PROCESS TXN DATA state.　　 Action: The UTP task sends the unsolicited data CHSUTPE_Status.　　 When the CHSUTPE_Terminate command is received from a controller device the UTP task fuel dispenser

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