about one vertical edge of the housing 30 to open and close over the front face 32 of the housing 30 the cover 50 may provide for a central transparent window 52 and a lock hasp 54 engaging with a corresponding lock hasp 56 on the housing that allows locking of the cover 50 in a closed position on the housing 30 when the cover 50 is closed over the front face 32 it retains the piggyback tubing assembly 25 therein and the window 52 allows visual inspection of each of the elements on the front face 32 referring now to fig3 the line management apparatus 10 may include a controller 60 which may be a processor 61 based system having a memory 62 for holding a stored operating program and data 64 controlling operation of the line management apparatus 10 as will be described below in particular the controller 60 may use the data in the memory 62 to control metering clamps 36 to ensure the desired dose and delivery rate to the patient the controller 60 may further communicate with the flow rate sensor 42 of the present invention for receiving a signal therefrom as will be described further the controller 60 executing the stored program 64 may read a signal from the air in line sensors 33 and the tubing loaded confirmation sensors 34 referring still to fig3 the controller 60 may also communicate with a screen 46 for displaying and or inputting various programming and operating parameters a speaker associated with speaker 44 for providing audible alarm signals and switches 38 for inputting data to.