Data acquisition

The measuring setup consists of the following components:

- Balance with RS232 interface
- Pentium computer with RS232 interface COM1, COM2, COM3 or COM4
- connection line between computer and electronic balance
- liquid container and silicon oil for the oil film
- cannula (G18 or G21)

The balance must be installed perfectly plain, in a vibration free environment and must be calibrated. The container of the infusion pump that has to be tested must be filled with water (corresponding to ISO class III). The connected infusion set with a long cannula has to be primed. In the liquid container placed on the measuring plate, a little amount of water is filled in with an oil film on the top (about 0.5 cm). This film reduces the evaporation of the water during the long measuring period.