Stephan Alia - Page 57

®
6 Checks and maintenance
© F. Stephan GmbH SA-112-0106V1.0-WEM-GB 57
The silicone tube fitted to the 4 mm fitting is connected directly to the
two pressure sensors for respiration pressure.
This tube can be used to apply the calibration pressures.
Fig. 45: Tube fitting for pressure calibration
1 handle 2 fitting 4 mm
Use a PC with terminal program for calibration.
Calibration consists of two steps:
1. Offset calibration (calibration the zero point)
2. Calibration at 50 mbar (stipulating the gain P(v)).
To proceed with offset or zero point calibration, apply 0 mbar or
atmospheric pressure to both pressure sensors.
To do so, remove the silicone tube from the 4 mm fitting of the
calibration block.
Input of "cpr0" –ENTER starts offset calibration of the redundant
pressure sensor:
cpr0
Start calibration FlowCal=0 PO2Cal=0 PPatCal=0 PRedCal=30
1. Offset calibration
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