U211-A Power Regulator

U211-A Power Regulator

Features:

Power in : AC 100V�?00V; Power out : AC 200V , 2kW

Voltage protection device under unstable voltage

Easily installed into fuel dispenser

100% Factory Tested.

Packing:

Weight: Dimension:

10.3kg/case of 1 150×200×340mm/case of 1

emperature of nozzle. tj.; Stop fuel dispenser. Readout indicating valve Vj, unit price Pu, and sale vale Pj. (keep two digitals after decimal.); Readout vernier value corresponding to nadir in measuring neck as foam and bubble disappear completely. Calculate out standard cubage VB (keep two digitals after decimal.) under 20 �? Then measure oil temperature tB in the middle of the standard measurer; Empty measurer according to stipulation; Repeat Procedure 4 to 8 at least twice; Regulat flow rate to the minimum rate Qmin, as for appraisal or period appraisal after ground installation, Qmin = 0.2 Qmax. Repeat Procedure 4 to 8 at least three times; Till now ground appraisal has been finished, namely, take six groups of data at least under two kinds of flow rate and repeat it 3 times. Data processing calculating formula Calculating formula for real volume VBt in standard measurer fuel dispenser under testing temperature tj: VBt = VB [1+βY (tj - tB) + βB (tB-20) ] (6-1) Relative volume error formula: EV = (VJ –VBt) / VBt ×100% (6-2) Measure repeatability formula: En = EVmax �?Evmin fuel dispenser (6-3) Flow rate calculating formula: Qv = 60Vj / t (6-4) Due money formula: PC = Vj · Pu (6-5) Due money error formula: EP = Pj －Pc (6-6) In above six formulae: VBt──real volume valve (L) under in measurer; VB──standard cubage of measurer under 20; βY , βB──volume expansion coefficient of appraisal media oil and measurer, respectively, (gasoline: 12×10-4/�? kerosene: 9×10-4/�? light diesel oil :9×10-4/�? stainless steel:50×10-6/�? carbonized steel:33×10-6/�? brass , bronze: 53×10-6/�? tj , tB──oil temperatures in flow meter (or nozzle outlet)and fuel dispenser standard measurer VJ── cubage value (L) under tj�?temperature EV── relative cubage error (%) n ── measuring times

cts blended together at a given ratio.　　 Fuelling Mode FM The fuelling product could be dispensed in different modes　　 (cash credit attendant etc.)　　 Stand Alone SA The dispenser has a link to a Controller Device. The FP control　　 (release clear transaction) is done locally at the dispenser.　　 Dispenser Offline Mode - The dispenser is not controlled by a Controller Device. There　　 is no link to a CD.　　 Dispenser Online Mode - The dispenser is controlled by a Controller Device.　　 CD Off-line Mode - CD is off-line when:　　 The CD is not in the Communication Layers s Recipient　　 fuel dispenser Address Table　　 The CD is in the Communication Layers s Recipient Address　　 Table but no heartbeat has been received in the expe fuel dispenser cted time　　 frame (3 x Heatbeat_Interval)..　　June 2005 IFSF - STANDARD FORECOURT PROTOCOL FP31_2.21　　 DISPENSER APPLICATION　　 Page: 25　　 CD On-line Mode - A CD is on-line when:　　 The CD is entered in the Communication Layers s Recipient　　 Address Table.　　 A heartbeat has been received from the CD within the expected　　 fuel dispenser time frame (3 x Heatbeat_Interval).　　 Transaction Buffer - The finished fuel

No, it is “a dreary, desolate, and indeed quite abject and distressing one; what we might call, by way of eminence, the dismal science.�? Carlyle was a fine one to talk. He was a brooding curmudgeon who thundered against industry, progress and the young science that sought to explain them. He found economists dismal not for the obvious reasons, such as their dry arithmetic or their gloomy preoccupation with scarcity and subsistence. Instead, he took against them because they were so wedded to the idea of happiness. The economists of his day took their cue from Jeremy Bentham and his “utilitarian�?philosophy. They calculated happiness, or utility, as the sum of good feelings minus bad, and argued that the pursuit of pleasure and the avoidance of pain were the sole springs of human action. One even looked forward to the invention of a hedonimeter, a “psychophysical machine�?that wo fuel dispenser uld record the ups and downs of a man s feelings just as a thermometer might plot his temperature. Such people, Carlyle complained, fancied that man was a “dead Iron-Balance for weighing Pains and Pleasures on�? The hedonimeter was never invented, and for a cent fuel dispenser ury or so economists fell silent about both weights on man s scales. They studied outward behaviour, not inward feelings; choices made, not pleasures taken. But in recent years, economists have become newly confident that they can measure utility as Bentham conceived it as a quantum of pleasure or pain. How do they do it? Mostly they just ask people. Daniel Kahneman, a psychologist at Princeton University who won the Nobel prize for economics in 2002, reckons people are not as mysterious as less nosy economists supposed. “The view that hedonic states cannot be measured because they are private events is widely held but incorrect,�?he and his colleagues argue. Generally, people can say ho fuel dispenser w they feel at a given moment, on a scale of zero to ten. And if this smacks of hearsay not science, the new “hedonimetrists�?can appeal to oth