Dräger Oxylog 2000 - Using Assist;Control Mode

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Drager Medizintechnik
3.7 Test 017: Displaying and Calibrating the Autozero Offset
In the IPPV mode, the Oxylog 2000 ventilates the patient with the frequency (Freq.), the tidal
volume (V T ), and the inspiratory time (T|:T E ) values. The alarm messages are not active. The
current offset (act. Offs) of the flow-measurement pressure sensor (Autozero) is displayed
continually in the lower section of the display. The filtered offset (fil. Offs) is indicated in the
top line of the display. The filtered offset compensates for the occurring fluctuations and has
a greater stability. A new Autozero value is calculated at one to two minute intervals.
• Adjust the mode switch to IPPV.
• Select the Extended Service Mode (ESM).
• Press the Reset key or the Info key to select Test 017.
• Press the Info key and the Reset key simultaneously to activate Test 017.
Display:
fil.Offs = X.XXX V
filtered offset (fil. Offs)
current offset (act. Offs)
act.Offs = X.XXX V
• Press the Reset key to calibrate the default offset (2.5 V).
fil . Offs = X.XXX V
cal.default.Offs
The filtered offset (fil. Offs) and the current offset (act. Offs) have the same voltage value. The
voltage should be approx. 2.5 V.
• Press the Info key and the Reset key simultaneously to return to the Extended Service
Mode (ESM).
Exiting the Extended Service Mode (ESM).
• Switch the Oxylog 2000 off and on again to return to the Oxylog 2000 normal operating
mode.
DS-Modus 5503.160 Oxylog 2000 11/97 Service-Mode SW 2.xx
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