Abstract: Apparatuses and methods for controlling transfer of substances to a formulation container to provide a predetermined formulation. A controller may utilize one or more of a flow time, flow rate or a volume of transfer of substance. Barcoded and RFID-containing components may be used to determine what connection or disconnection has been made, and/or time thereof. Process compliance may compare measured or determined flow or connection time, flow rate and/or the transfer volume to a predetermined time, flow rate and/or volume, and adjust one or more of the time, flow rate and/or the volume of the transfer. An optional holder or cradle is configured to receive therein a fluid transfer connector formed by the connection of first and second connector portions, each in fluid communication with a flow conduit or channel that delivers substance to or receives substance from its respective connector portion, only if the connector portions are properly connected together.

Abstract: An automatic flow measuring device is used in an industry where accuracy in dispensing of liquid is necessary. It is fully automatic in nature and is used with a PLC (programmable logic controller) to give the system intelligence and reporting capability. The automatic flow measuring device for measuring fluid flow includes an automatically operated valve, a tee connector operatively coupled to the automatically operated valve, an elongated member defining a measuring chamber coupled to the tee connector, at least a first fluid level sensor mounted on the elongated member at a first position thereon and a second fluid level sensor mounted on the elongated member at a second position thereon. The first and second sensors are preferably electronic and send signals to the PLC which opens and closes the automatically operated valve.

Abstract: A gas flow rate meter includes an upstream line and two chambers having substantially equal, fixed volumes. An adjustable valve may direct the gas flow through the upstream line to either of the two chambers. A pressure monitoring device may be configured to prompt valve adjustments, directing the gas flow to an alternate chamber each time a pre-set pressure in the upstream line is reached. A method of measuring the gas flow rate measures the time required for the pressure in the upstream line to reach the pre-set pressure. The volume of the chamber and upstream line are known and fixed, thus the time required for the increase in pressure may be used to determine the flow rate of the gas. Another method of measuring the gas flow rate uses two pressure measurements of a fixed volume, taken at different times, to determine the flow rate of the gas.