Dräger Medical Zeus, Техническая документация инструкция

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Function description Zeus
Figure 21 IRIA module without sensor
7.2.1 Intended use IRIA is a gas measuring module for N2O, CO2 and the anesthetic gases Hal-
othane, Enflurane, Isoflurane, Desflurane and Sevoflurane. The gas measur-
ing module can automatically recognize the anesthetic in use.
7.2.2 Configuration The IRIA gas measuring module principally comprises the following compo-
nents:
– IRIA sensor head with Control PCB
– Pump
– Pneumatic low pass
– Solenoid valve for zero calibration
– Module rack with 4 PCBs
The module rack of the ILCA module contains 4 PCBs with the following func-
tions:
– AMO FLOW ILCA PCB - Control of the pump and the zero calibration
solenoid. A serial EEPROM stores the necessary data such as the serial
number, hardware/software revision, control parameters etc.
– AMO IRIA PCB - Here the necessary supply voltages are generated and
the data transfer from the IRIA sensor to the MOPS PCB is implemented.
– AMO MFM PCB - This PCB amplifies the signal coming from the Ser-
vomex.
– MOPS PCB - Primarily delivers the data for further processing via an
RS 232-interface.
7.2.3 Measurement principle The measurement principle of the IRIA (see Figure 22 ) is based on the infra-
red absorption method. A heated filament (1) is the radiation source. The
infrared radiation passes through a filter wheel (2) which allows through