11.3 Standard condition specification
Inaccuracy ranges in this document assume
the following standard conditions and the
worst case, i.e. all errors are summarized
positive. Statistically 95% of all values will be
within 2/3 of the given error.
• Ambient pressure: 101.3 kPa
• Room temperature: 20 ºC
• Inlet pressure: 4.3 kPa x 100
• Pre-use check performed on a warmed up
ventilator
• Pre-use check performed with 99 %
oxygen content in O
2
supply.
• Pre-use check performed with 21 ±0.5%
oxygen content in air supply.
• Patient circuit compliance compensation is
activated.
• Default settings unless otherwise specified
• All measured, preset and indicated flows
and volumes are referenced to BTPS, see
chapter Definitions on page 165.
• All measured, inlet gas pressures and flows
are referenced to STPD, see chapter
Definitions on page 165.
• Humidifier water level is between 50 % and
100 % of the maximum level.
• Set I:E is less than 1:1.
• Set ventilatory frequency is less than or
equal to 100 breaths/minute.
• Inaccuracy does not include measurement
uncertainty. Values including measurement
uncertainty are specified in the service
documentation available from the
manufacturer.
• Constant leakage fraction below 30 % in
NIV modes.
SERVO-s VENTILATOR SYSTEM V8.0, User's Manual
149
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