FUEL DISPENSER & SPARE PARTS

FUEL DISPENSER & SPARE PARTS

Fuel dispenser are used in petroleum-retail service stations for filling lightweight oil including gasoline or diesel etc. We have taken up the production of fuel dispenser since1992. Among our gigantic business portfolio, oil transfer pumps were first put on our agenda and then mechanical fuel dispensers, electronic fuel dispenser in subsequence.

Our fuel dispensers have 3 series, namely, C series, D series and S series. All of the series share the same electronic system, which consists of flow meter, combination pump, auto nozzle etc. But C series is little in size and has a general outline with hoses from the middle. And D series contains jambs with stainless steel and hoses from the top. Then S series have a novel streamline outline and hoses from the top, which is bigger in size in comparison with the other ones.

C/DC convert type switch power is universally adopted in fuel dispenser. Diagram 3-13: Structural sketch map of liner voltage stabilizing power Diagram 3-14: Structural sketch map of switch stable voltage power adopted DC/DC converter Diagram 3-15: Structural sketch map of switch voltage stabilizing power adopted pulse transformer As an electronic component in fuel dispenser, stable voltage power is easily failed and possibly leads to whole trouble of fuel dispenser once appear doesn’t work. Generally, liner voltage stabilizing power adopts 78 series special voltage stabilizing integrated circuit, such as 7805 and 7812, simple design and convenient maintenance. In Diagram 3-16, a popular liner voltage stabilizing power circuit of fuel dispenser is illustrated. Switch power supply adopted pulse transformer will not introduced here, reference with relevant boos when necessary. Diagram 3-16: Circuit diagram of liner voltage stabilizing power These integrated circuits of LM2576, LM4962 AND MC34063A are widely adopted in DC/DC transformer power supply. Intrinsic safety voltage stabilizing power supply in fuel dispenser This kind of direct current is able to employ in flammable and combustible environment only when mounted safety barrier. It also called intrinsic safety voltage stabilizing power supply illustrated in Diagram 3-18. Explosion-proof power supply is only used in explosion-proof box or an atmosphere without explosive gas, including its associated circuit. It is allowed to employ intrinsic safety power in explosive atmosphere, but must in explosion-proof box or an environment without explosive gas. However, its associated circuit is permitted to use in explosive gas atmosphere if meet requirements concerned. The major difference between intrinsic safety power and explosion-proof power is whether install safety barrier. Diagram 3-17: Voltage stabilizing power circuit fuel dispenser of DC/DC convertor Diagram 3-18: Sketch map of intrinsic safety power The function of setting a safety barrier i fuel dispenser fuel dispenser

(0-1) W(1-2)　　 Allows the CD to switch the PPs light on or off.　　 0 = Off　　 1 = On　　 71 bin8 R(1-2) M　　 Price_Pole_State　　 (1-2)　　 Used to indicate the state of the price pole point. Please see　　 the Price Pole Point State Diagram for details of the　　FP32_111 IFSF - STANDARD FORECOURT PROTOCOL March 2000　　 PRICE POLE APPLICATION　　Page: 18　　 PRICE POLE DATABASE　　 DB_Ad = PP_DAT (01H)　　 Data Element Name　　 Data Field Type ReadWrit MO　　 Description　　 _Id (Values) e in State　　 individual states (Chapter 2.1 of this document).　　 An unsolicited message (PP_Status_Message Data_Id　　 100) is generated by the PP for each change in the　　 Price_Pole_State state.　　 UNSOLICITED DATA　　 100 bin8 M　　 PP_Status_Message　　 A Price_Pole_Status_Message must be sent unsolicited by　　 the PP when ever a change occurs in the Price_Pole_Status.　　 The Price_Pole_Status_Message includes:　　 - Price_Pole_Status (Data_Id = 71)　　 MANUFACTURER OIL COMPANY SPECIFIC　　 200　　 to Free to the manufacturer oil company　　 255　　March 2000 fuel dispenser IFSF - STANDARD FORECOURT PROTOCOL fuel dispenser fuel dispenser

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