Flowmeters, Liquid, Inspection/Maintenance
Definition : Flowmeters designed to measure the rate and, frequently, the volume of liquid flowing through a pipe or equipment tubing for the inspection and/or maintenance of medical devices. These instruments are typically powered devices for the external measurement of liquid flow, typically in a range up to 10 mL/min, using several techniques (e.g., ultrasound, electromagnetic). Simpler instruments (variable area flowmeters, also known as rotameters), consisting of a vertical tapered glass tube containing a cone or ball that is pushed by the moving fluid stream and lowered by gravity measuring flow by the position of the ball in the graduated tube are also available. Inspection/maintenance liquid flowmeters are used to assess liquid circulation during inspection, preventive maintenance, and/or field calibration of medical devices such as heart-lung bypass units and infusion pumps.
UMDC code : 24784