Chapter 9: Calibration / adjustment
9-44 Fresenius Medical Care 4008 S (Version V10) SM-EN 7/01.13
9.2.2.1 Calibration of the negative degassing pressure on installation sites situated at higher altitudes
If devices are operated on sites situated at higher altitudes (observe sea
level), the specified negative degassing pressure cannot be reached.
The calibration has to be performed as follows:
The setting for the degassing pump has to be increased in increments
from a low speed until no significant increase of the degassing pump
pressure can be detected anymore. This setting can also be saved.