| 摘要 |
2062984 9011504 PCTABS00002 A manometer has incorporated therein a thermometer whose indicator (15) moves along the manometer scale (13) so that the indicator (15) indicates the ideal CO2 equilibrium pressure in the draught beer keg under all temperature conditions. To compensate for the system-constant pressure drop in the draught beer system which occurs during dispensing, the indicator (15) of the thermometer can be manually caused to indicate a corresponding increment to the equilibrium pressure, so that under all temperature conditions the thermometer indicator (15) is present at the point on the manometer scale which corresponds to the desired CO2 pressure. The correct CO2 pressure is then set by always causing the manometer pointer (12) to point at the thermometer indicator (15).
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