U203-A Display

U203-A Display

Features:

6 digits volume,6 digits sales,4 digits price per unit

Big LCD screen and bright backlight

running normally on the condition of -40 C to 55 C

Current:500mA

Weight:300g

100% Factory Tested.

hydraulic section of fuel dispenser is a comprehensive presentation of the applied hydrodynamics, mechanical manufacturing, engineering mechanics, engineering material, automotive control principle and metrology. The performance of hydraulic components and matching ration is symbolic of fuel dispenser. This chapter mainly introduces the structure of hydraulic components, working principle and troubleshooting of fuel dispenser, such pump, oil-air separator, measurement transducer, nozzle, oil indicator and solenoid valve. Since there are many brands of fuel dispenser that mounted different hydraulic parts it is difficult to comprehensively introduce domestic fuel dispenser’s hydraulic components. In order to facilitate the reader to better understand hydraulic components and master maintenance technique, this handbook will present the popular fuel disp fuel dispenser enser’s structure, working principle and reparation methods. Despite different model of components there are still many similarities in their working principle. To learn the common components is conducive to know other model. As a failure phenomenon occurred by various caus fuel dispenser ation, only deeply understand products one can precisely judge its fuel dispenser trouble. Therefore, we spend a whole chapter to introduce the working principle of components. In fuel dispenser market there are many hydraulic parts with similar appearance and inner structure. Different manufacturers with different research and understanding provide various products in terms of performance and failure presentation. Readers could maintain not only according to the User’s manual provided by manufacturer, but also analyze and repair to the knowledge introduced in this chapter. Professional maintenance operator assigned by manufacturer will be asked when meeting some much difficult trouble. The hydraulic source system of fuel dispenser composes of pump and motor. By delivery model it divides positive delivery and negative delivery. The former model adopts submersible pump, usually a centrifugal pump that

POS INTERFACE SPECIFICATION　　 Page 5 of 146　　 Pre-Conditions.................................................................................................................................................................43　　 Actors...............................................................................................................................................................................43　　 Main Flow Description....................................................................................................................................................43　　 3.18 PART A - USE CASE: RECONCILIATION ............................................ fuel dispenser ..........................................................................43　　 Card Reconciliation Process ...........................................................................................................................................43　　 Pre-Con fuel dispenser ditions............................................................ fuel dispenser .....................................................................................................44　　 Actors...............................................................................................................................................................................44　　 Main Flow Description....................................................................................................................................................44　　 3.19 PART A - USE CASE: ONLINE AGENT.........................................................................................................................44　　 Pre-Conditions...................................................................................................................................................

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