Dräger Oxylog 2000 Manual page 30

Drager Medizintechnik
Drager
P_VERSOR GU N G
XXXfX.XXX V)
Example:
• Disconnect gas supply.
• Note the Offset-Value of the
voltage (0.64 V).
• Connect gas supply.
• Note the measured value of the
voltage (1.456 V).
Pressure sensor (P-supply):
(back pressure of the pressure regulator)
The indicated value X.XXX V corresponds to the
calculated background of the pressure regulator
(in volts).
Background = indicated value minus the offset
(1 bar is equivalent to approx. 460 mV)
Offset = value indicated while the gas supply is
disconnected
• Formula:
pressure result in Volt (1.456 V) - Offset value (0.64 V) = 0.816 V.
• Formula:
0.816 V : 0.460 V (fixed value) <-> 1.773 bar (back pressure of the pressure
regulator).
Mode selctor switch AirMix/NoAirMix:
Air Mix position ca. 0.6 V
No Air Mix position ca. 2 V
Mode switch at position IPPV (< 2 V).
Mode switch at position SIMV (> 2 V).
Rechargeable-battery temperature sensor (NTC)
Charging/temperature monitoring
• 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
Page 30