Details of, or accessories for, apparatus of the preceding groups insofar as such details or appliances are not adapted to particular types of such apparatus

GPHYSICS G01Measuring instruments G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL METERING BY VOLUME

G01F15/00Details of, or accessories for, apparatus of the preceding groups insofar as such details or appliances are not adapted to particular types of such apparatus

G01F15/001Means for regulating or setting the meter for a predetermined quantity G01F15/002for gases G01F15/003using electromagnetic, electric or electronic means G01F15/005Valves G01F15/006characterised by the use of a particular material G01F15/007comprising means to prevent fraud G01F15/008comprising lubricating means G01F15/02Compensating or correcting for variations in pressure, density or temperature G01F15/022using electrical means G01F15/024involving digital counting G01F15/026using means to maintain zero differential pressure across the motor G01F15/028for low flow rates G01F15/04of gases to be measured G01F15/043using electrical means G01F15/046involving digital counting G01F15/06Indicating or recording devices G01F15/061for remote indication G01F15/063using electrical means G01F15/065with transmission devices G01F15/066involving magnetic transmission devices G01F15/068with electrical means G01F15/07Integration to give total flow G01F15/075using electrically operated integrating means G01F15/0755involving digital counting G01F15/08Air or gas separators in combination with liquid meters Liquid separators in combination with gas meters G01F15/10Preventing damage by freezing or excess pressure or insufficient pressure G01F15/105Preventing damage by hydraulic shocks G01F15/12Cleaning arrangements Filters G01F15/125Filters G01F15/14Casings G01F15/16Diaphragms Bellows Mountings therefor G01F15/18Supports or connecting means for meters G01F15/185Connecting means