Dräger Savina, Service Manual

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Dr ä ger Medizintechnik GmbH Service Mode Savina Version 2.0
    
  
Test step 22 is used to display the "Measured offset voltage" and the "Calibrated offset voltage" of
the electronics for the O
2
sensors. In addition, this test step can be used to calibrate the offset of
the measurement electronics "Calibrate O2 sensors".
Select "Start" to start calibration. "Running" is displayed. Calibration is finished as soon as the
message "Start" reappears.
  
Test step 23 is used to display the offset voltages of the inspiratory pressure sensor (S4.1)
expiratory pressure sensor (S4.2). This test step is also used to calibrate the offset voltage.
Activate "Calibrate" to start calibration. It is clearly audible when the respective valves (V6.1/V6.2)
switch to ambient air.
Value after calibration: — 75 mV to +75 mV
To calibrate the measurement electronics, remove the O
2
sensors. Refit O
2
sensors after
calibration.