D-GC88 FUEL DISPENSER

D-GC88 FUEL DISPENSER

Pump :Type Optional

Inlet Pressure :>=54kPa.

Flow rate (L/min.): 55±5

Suction Distance (m) :6(verticalmente) / 50(orizzontalmente)

FlowMeter Type : Optional

Accuracy :±0.2%

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 :450kg

Dimension(L×W×H): 1615 X 620 X2420(mm)

Dimension(L×W×H)Of Qty of Container :40ft: 26

ection is small, pump suction is large; vice versa, large returned oil low suction distance. Diagram 2-5: Suction flow of vane pump Suction capacity of pump is restricted not only by its structure but also by the oil physical tr fuel fuel dispenser dispenser ait and pipeline. Under a certain temperature, air pocket phenomenon of oil will generated when vacuum reaching a given degree, so that the pump can’t suck oil normally. At high oil level, large resistance from pipeline, much higher vacuum pressure occurs at the inlet of pump; the higher temperature the more likely create air pocket. The phenomenon is likely to appear given the oil is gasoline. The phenomenon of cavitation is generated when partial pressure at inlet of pump is low than air pressure, the dissolved gas in oil begin separate out, and oil start gasif fuel dispenser ying vigorously as pressure getting down, reaching saturation pressure. The normal working of pump is affected due to a great of foam damaging the continuity of liquid flow. Fuel dispenser is likely come out any oil or work with large noise as the cavitation is severe. Components will be damaged in this long phenomenon. At same time, oil vibration is increased so that the accuracy become down, as well as shorting service life of hydraulic components. The correlation between liquid saturation and gas pressure is illustrated in diagram 2-6. Diagram 2-6: Relations among temperature, steam pressure and liquid saturation Diagram 2-6 shows gasoline more likely to Air area than water and coal oil under the same pressure along with temperature increasing; under the same temperature the more vacuum pressure the earlier in air-area. There are two aspects that should be considered to prevent cavitation in pump inlet. One is that the design parameter of pump should be rational. The other is that pipeline should be installed scientifically. The effect of hydraulic pipe to fuel dispenser’s suction capacity will be introduced in detail. To understand the principle of cavitation and causation of affecting pump suction capacity is

...................................................... 4040　　5 IMPLEMENTATION GUIDELINES RECOMMENDATIONS ..................................... 4141　　5.1 ACTIONS WHEN A DEVICE RECOGNISES THAT A SC IS OFF-LINE.... fuel fuel dispenser dispenser ......................................... 4141　　5.2 IFSF MESSAGE EXAMPLES ........................................................................................... 4141　　 5.2.1 Read and Answer Messages ................................................................................... 4141　　 5.2.2 Write and Acknowledge Messages .......................................................................... 4141　　5.3 READ AND WRITE DATA ERROR HANDLING ...................................................................... 4242　 fuel dispenser 　 5.3.1 Communication Layer Errors .................................................................................. 4242　　 5.3.2 Application Data Layer Errors ................................................................................. 4343　　5.4 DATA_ACK ERROR HANDLING ...................................................................................... 4444　　 5.4.1 Checking Order ..................................................................................................... 4545　　FP2_1.89 IFSF STANDARD FORECOURT PROTOCOL June 2005　　 COMMUNICATION SPECIFICATION　　Page: 4　　0 Record of Changes　　 Only changes effected in Versions1.83 1.84 and 1.85 are listed. Previous changes can　　 be viewed in previous versions available in the Library Standards Archive Section.　　 Date Versio Modification　　 n　　 October 1.83 Various formatting modification throughout the document　　 2002

Humans and chimpanzees were interbreeding for all this time, before finally separating no more than 6.3m years ago and probably less than 5.4m years ago. This is more recent than was thought. Moreover, the argument that the two spe fuel fuel dispenser dispenser cies were interbreeding over such a long time is, to say the least, controversial. Most interesting was what the scientists discovered about the X chromosome in humans and chimpanzees. The X is one of two chromosomes that determine a person s (or a chimp s) sex. Females carry two copies of the X chromosome while males carry one X and one Y chromosome. The progeny of interbreeding start with a big evolutionary disadvantage. It is thought that if human and chimp ancestors initially became separate species and then started to interbreed, then the hybrid males fuel dispenser produced tended to be infertile. (No one knows exactly why males are more affected than females, just that they are in groups ranging from mammals to insects.) A viable hybrid population could only be created if the fertile females mated back to one of the ancestral populations. The scientists found that human and chimpanzee X chromosomes are relatively similar. Indeed, their differences are roughly some 1.2m years younger than the average of all the non-sex chromosomes. This lends weight to the theory that a viable hybrid population was sustained by interbreeding over a long time. Further evidence could come from the fossil record. Fossil finds are notoriously difficult to classify—people disagree on which physiological features are important; and each new find represents a class of one. The Toumai skull, found in Chad in 2001 and thought to be the earliest hominid, is between 6m and 7.4m years old. However, Dr Reich points out, if humans and chimpanzees had undergone an initial separation at this time, it could account for why the skull has human-like features, including a relatively flat face without a protruding snout. The interbreeding came after this time. The researchers, along with other scientist