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English
Symbols
Symbol
Explanation
Follow instructions for use
Power
Exhaust for sample gas for recirculation or scav-
enging
On/Off
Manufacturer
Date of manufacture
XXXX
Part number
Serial number
Storage temperature
Relative humidity
Atmospheric pressure
WEEE label, Directive 2002/96/EC
Keep away from rain
Nominal weight
Applied part, protection class BF (Body Floating)
Potential equalization
Do not use this device in the vicinity of
MRI scanners.
The product is a medical device (CE conformity
assessment procedure)
Rx only.
CAUTION: Federal law restricts this device to sale
by or on the order of a physician.
Abbreviations
Abbreviation
Explanation
ATPS
Ambient temperature and pressure, saturated
BTPS
Body temperature and pressure, saturated
COM
Serial interface
EMC
Electromagnetic compatibility
8
Abbreviation
Explanation
HME
Heat and moisture exchanger
HMEF
HME filter
I:E
Ratio of inspiratory time to expiratory time
ID
Identification
MEDIBUS
Dräger communication protocol for medical
devices with uniform data definition for all
devices
MRI
Magnetic resonance imaging
NMI
Nuclear magnetic imaging
NMR
Magnetic resonance
NTPD
Normal Temperature Pressure Dry,
20 °C (68 °F), 1013 hPa, dry
SW
Software
Functional scope
The gas analyzer samples inhaled and exhaled gases from adult
and pediatric patients in non-, partial-, and total rebreathing sys-
tems. It measures inspiratory and expiratory gases and communi-
cates in real time to the patient monitor.
The gas analyzer is available in 4 variants with different functions
as listed below:
O
CO
, N
2
2
Scio Four
No
Yes
Scio Four
Yes
Yes
Oxi
Scio Four
No
Yes
plus
Scio Four
Yes
Yes
Oxi plus
Functional principles
The gas analyzer utilizes IR spectroscopy for carbon dioxide,
nitrous oxide, and volatile anesthetics measurement. Each gas,
with its own specific absorption characteristic, is transported
through a sample cell. Multiple optical IR filters select specific
bands of IR light, which then are analyzed with a detector. The
amount of IR light received by the detector is a measure of gas
concentration. This means the higher the gas concentration, the
less IR light will be received by the detector.
For oxygen measurement, the paramagnetic characteristic of oxy-
gen molecules is used. The gas is transported through a sample
cell, where the paramagnetic effect of oxygen is measured. The
higher the oxygen concentration, the greater is the measured
effect.
WARNING
Risk due to inaccurate gas measurement values.
For the variants Scio Four and Scio Four Oxi only.
Use care when setting agent ID manually on the patient
monitor. Measurements will be inaccurate if the wrong
agent ID is selected.
O
Agent
Agent ID Mixtures
2
1 out of 5
No
1 out of 5
No
2 out of 5
Yes
2 out of 5
Yes
Supplement Scio Four modules
No
No
Yes
Yes
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