D-GQ FUEL DISPENSER

D-GQ FUEL DISPENSER

FlowMeter Type: Optional

Accuracy : ±0.2%

Pressure Loss (kg/cm): Under 0.25

Motor Voltage(V): 110V/220V/380V,50Hz/60Hz

Capacity(hp): 1HP(0.75kw)

Input Voltage : 110V/220V/380V,50Hz/60Hz

Nozzle: Auto Shut-off Nozzle

Environmental Condition : -40~~+55degree

Control Type: Solenold Vale Control Type

Preset: Function Provided(Small LCDIndicator)

Display(Counter) :Type LCD and Bright Backlight

Digit of Volume : 0~~999,999(6 Digits),Decimal point can be changed

Digit of Amount: 0~~999,999(6 Digits),Decimal point can be changed

Digit of Unit price: 0~~9999(4 Digits),Decimal point can be changed

Digit of Total Range : 0~~99,999,999,99

Optional Display: Type LCD and Bright Backlight

Digit of Volume: 0~~99,999,999(8 Digits),Decimal point can be changed

Digit of Amount : 0~~99,999,999(8 Digits),Decimal point can be changed

Digit of Unit price : 0~~999999(6 Digits),Decimal point can be changed

Digit of Total Range : 0~~99,999,999,99

Totalizer: 1~~9,999,999

Hose :4.5m

Weight : 205kg.

Dimension(L×W×H): 900*620*2180(mm)

Dimension(L×W×H)Of Qty of Container : 40ft: 45 20ft: 22

Exploded drawing of double flux solenoid valve From above diagrams, it is known that this kind of solenoid valve consists mainly of valve body, membrane, cone-shaped spring, valve cover, pilot valve, control valve of small flux, reposition valve, winding of pilot valve and small flux valve winding. The working principle of double flux solenoid valve can be leaned from Diagram 2-35. Pilot valve, small fl fuel dispenser ux valve and main valve controlled by membrane are closed after power cut, no oil pass solenoid valve. When both two windings are open, pilot valve and small flux valve switch on, pressured oil pushing down membrane. Part of oil in A chamber flow toward outlet of solenoid valve via pilot valve and small flux valve, main valve is switched on after overcoming spring, at this state, solenoid valve is in large flux. When winding of pilot valve is cut power, pilot valve is closed, membrane go upward so as to close main valve due to oil pressure increase in A chamber. Solenoid valve is in small flux state. If the power of winding of small flux valve is cut off, small flux valve is closed, no flux in solenoid valve. It is learned from above introduction that the large and small flux of solenoid valve are controlled by pilot valve and small flux valve. This is why it called double flux solenoid valve. As filing motor, pilot valve, small flux valve and main valve are switched on, fuel dispenser work in large flux state. When filling volume nearly reach presetting value, winding power of pilot valve is cut off, main valve is closed. However, small flux valve is still working. When filling volume reach preset-value, the winding power of small flux valve is cut off, solenoid valve is closed. Filling operation is end. Troubleshooting In filing operation some troubles maybe correlate to solenoid valve, some maybe to other hydraulic components. Small flux or no delive fuel dispenser ry in fuel dispenser, for example, it is possible caused by solenoid valve or other components. Therefore, it is need to give concrete analysis and diagno fuel dispenser

e unique for a customer and does not need to be injected at　　 the factory or at the site.　　 This method provides security against attacks such as physical penetration; device　　 substitution; tapping; bypassing encryption; and transaction replay or alteration. The　　 architecture employs a local key management zone. The zone always uses Derived　　 fuel dispenser Unique Key Per Transaction (DUKPT) and unique key per terminal. This provides　　 several advantages. First of all it allows the COPT to always use DUKPT and to　　 employ a unique derivation key per COPT regardless of the key management method　　 employed in the rest of the system. Because the COPT gets its initial key from the　　 controller after installation the COPT does not have to be dedicated to specific　　 customers reducing spares cost and decreasing MTTR. The method used to provide　　 the initial key to the COPT is Exponential Key Exchange (Diffie-Hellman) a public　　 key technique.　　 During operation the data is collected at the COPT and encrypted under the DES　　 Encryption Algorithm creating an encrypted data block. Using DUKPT the encrypted　　 data is sent to the controller which can then be decrypted. The keys used by the COPT　　 may be changed at any time if compromise is suspected (or just for additional　　 security) without returning them to a key injection facility or taking a key loading　　 device to the site.　　 At the heart of the security structure is the use of Exponential Key Exchange to　　 initialize the COPT from the controller. This technique makes possible many of the　　 benefits mentioned earlier while providing a high level of securi fuel dispenser ty for data within the　　 system.　　 In the controller the data is decrypted. With t fuel dispenser

potshots at his rivals, Mr Kagermann, a former physics professor, takes a more measured approach. His predecessor, Hasso Plattner, now SAP s chairman, was more in the Ellison mould, and clashes between the two men got personal. But a former colleague says Mr Kagermann prefers to see management as “dealing in shades of grey� Mr Kagermann insists that SAP will not deviate from its organic-growth str fuel dispenser ategy, despite catcalls from Mr Ellison and some analysts suggestions that it will not be able to maintain its double-digit growth in a consolidating industry without big acquisitions. SAP was founded by Mr Plattner and four other IBM dissidents in 1972, and its success stemmed from the quality of their programming, a masterpiece of German engineering. But buying other firms to gain access to their customers and increase market share, as Oracle does, is horribly messy from an engineering point of view, since it means maintaining several different products in parallel. SAP prefers to build everything itself. Although SAP is now a global company, with research labs in India, China and California, its roots still unmistakably lie in Germany. That was brought home recently when three German employees were able to force the introduction of a workers council—though 92% of the workforce voted against it—because of a quirk in German labour law. Some 60% of research and development is still done on the campus at Walldorf, near Heidelberg, or at nearby universities; 90% of the staff in Germany are German. Some say that Shai Agassi, a charismatic young Israeli who is in charge of SAP s product development and is seen as Mr Kagermann s successor, is trying to draw the cutting-edge stuff to his base in California. Mr Agassi is a protégé of Mr Plattner and relishes SAP s rivalry with Oracle. So far Mr Kagermann has managed to keep his ambitious young lieu fuel dispenser tenant in check. SAP is motoring along nicely under Mr Kagermann, but must avoid three obstacles if it is to maintain its leadership. The fi fuel dispenser