U212-A Rolling Display

U212-A Rolling Display

Features:

Power : AC220V , 50Hz

Including : 2 displays , 1 power board , 1 transformer , 1 SSR

The content on the display could be changeable

Easily fixed on fuel dispenser

100% Factory Tested

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 trait 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 gasifying 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 fuel dispenser 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 fuel dispenser fuel dispenser

te MO　　 Data Element Name　　 Description CHS_State　　 26 Byte R(4-6) M　　 CHSUTR_Acquirer　　 To allow the sales process to interrogate the acquirer identification for the　　 card transaction.　　 27 Byte R(4-6) M　　 CHSUTR_CardClass　　 To interrogate the sub class of card within the range of acquirer cards (e.g. a　　 sub class can be defined per issuer or a group of issuers). This can also　　 reflect the type of account selected for payment where this is supported by　　 the transaction dialogue.　　 28 AscX R(4-6) M　　 CHSUTR_PAN　　 To interrogate the personal account number when the payment was made　　 with a card. Depending on the rules or requirements of the acquirer the field　　 will contain the IIN (Issuer Identification Number from 2 to 6 digits) or the　　 full personal account number. The field shall be left justified.　　 29 BcdX R(4-6) M　　 CHSUTR_Driver　　 To interrogate the driver number. The field shall be right justified and filled-　　 up with leading fuel dispenser zeros when the number entered digits is less than the field　　 size.　　 30 BcdX R(4-6) M　　 CHSUTR_VehicleCode　　 To interrogate the vehicle code number. fuel dispenser fuel dispenser

6 From The Economist print edition The Economist, 25 St James s Street, London SW1A 1HG FAX 020 7839 2968 E-MAIL letters@economist.com Evaluating Greenspan SIR �Your mean-spirited valediction on Alan Greenspan suggests to me that he got it right after all (“Danger time for America� January 14th). The Economist has been criticising America s economic performance for years, warning about the trade deficit, worrying about consumer debt and frequently predicting disaster for financial markets—yet the economy thankfully ignores you. Perhaps it is time for you to have a re-think? In a global economy dominated by footloose investors, capital flows dominate trade deficits and these capital flows are attracted by high investment returns. American innovation and productivity, underscored by low taxes and stable monetary value, have attracted massive capital flows. As a consequence, the high returns in America s financial markets have reduced the need to save out of current income, a contrast to the low return, high inflation era of the 1970s. Mr Greenspan s greatness should be measured by his successful adaptation of American monetary policy to this world now dominated by capital flows, and especially at a time of increasing challenges from a growing dollar-zone through China and other dollar-linked emerging economies. Similar structural threats floored markets in the 1930s. Today, thanks to Mr Greenspan, we are still standing. Michael Howell Managing director CrossBorder Capital London SIR �Bravo for your harsh critique—Mr Greenspan was the key villain in creating economic bubbles. The policies of the Federal Reserve between fuel dispenser 1997 and 2000 fuelled a boom in over- investment that predictably collapsed and a bubble in stock gauges that predictably crashed. Among the ultra-easy actions the Fed took was the excessive and sustained rise in broad money times an unprecedented soaring of monetary velocity. Sizzling money velocity largely reflected the manic r fuel dispenser fuel dispenser