EDAN iM70 - Page 285

Patient Monitor User Manual Product Specification
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Water handling
NomoLine Family sampling lines with proprietary water removal
tubing.
Sampling flow rate
(50 ± 10) sml/min
Note: Volumetric flow rate of air corrected to standardized conditions of
temperature and pressure.
Breath detection Adaptive threshold, minimum 1 vol% change in CO
2
concentration.
Respiration rate
0 to 150
± 1 breaths/min. (Measured at I/E ratio 1:1 using breath
simulator according to EN ISO 80601-2-55 fig. 201.101.)
Fi and ET
Fi and ET are displayed after one breath and have a continuously
updated breath average.
The following methods are used to calculate end-tidal (ET) values:
- CO
2
: The highest concentration of CO
2
during one breathing cycle
with a weight function applied to favor values closer to the end of the
cycle.
- O
2
: The highest/lowest concentration of O
2
during the expiratory
phase (depending on whether ETO
2
is higher or lower than FiO
2
).
- N
2
O and anesthetic agents: The momentary gas concentration at the
time point where ETCO
2
is detected.
ET will typically decrease below nominal value (ET
nom
) when
respiration rate (RR) exceeds the RR threshold (RR
th
) according to the
following formulas:
CO
2
N
2
O, O
2
, DES, ENF, ISO , SEV
HAL
NOTE: Measured at I/E ratio 1:1 using breath simualtor according to
EN ISO 80601-2-55 fig. 201.101
Automatic agent
identification
Primary and secondary agents
Sensor head 2 to 9 channel NDIR type gas analyzer measuring at 4 to 10 μm. Data
acquisition rate 10 kHz (sample rate 20 Hz / channel). O
2
measurements by Servomex’s paramagnetic sensor.
Compensations
Automatic compensation for pressure, temperature and broadening
effects on CO
2
.
Calibration
No span calibration is required for the IR bench. An automatic
Zeroing is performed typically 1 to 3 times per day.
Warm-up Time < 20 seconds (Concentrations reported, automatic agent identification
enabled and full accuracy)