Patient Monitor User Manual Product Specifications
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Note 1: In accordance to ISO 21647:2004 and ISO 80601‑2‑55:2011, for respiratory rates from
0…60
1
/min with I: E ratio of 1:1.
Note 2: Duration from power on at 10 °C module temperature to transmission of measurements
with unspecified accuracy
Note 3: Duration from power on at 10 °C module temperature to transmission of measurements
with specified accuracy
Note 4: With Dräger sample line (REF 8290286) and water trap (REF 6872130)
A.20.2 Mainstream
IRMA module
Module Type IRMA AX+ Displaying the concentration of CO
2
, N
2
O and two
anaesthesia agent and indentifying two anaesthesia
agent
Measurement
Parameters
CO
2
, N
2
O, HAL, Isoflurane (ISO), Enflurane (ENF), Sevoflurane
(SEV), Desflurane (DES), AwRR, MAC
Measurement
Principle
CO
2
, N
2
O, anaesthesia agent: infra-red absorption characteristic
Barometric Pressure
Compensation
Automatic
Data Sample Rate 20 data frames, 420 bytes, per second
Warm-up Time IRMA AX+: < 20 seconds (Concentrations reported, automatic
agent identification enabled and full accuracy)
Rise Time CO
2
≤ 90 ms
N
2
O ≤ 300 ms
HAL, ISO, ENF, SEV, DES ≤ 300 ms
(Measured at 10 l/min with gas concentration steps corresponding to
30% of total measuring range for each gas.)
Primary Agent
Threshold
0.15 vol%. When an agent is identified, concentrations will be
reported even below 0.15 vol% as long as apnea is not detected.
Secondary Agent
Threshold
0.2 vol% + 10% of total agent concentration
Agent Identification
Time
< 20 seconds (typically < 10 seconds)
Total System Response
Time
< 1 second (Measured at 10 l/min with gas concentrations according
to table 201.103 in EN ISO 80601-2-55:2011.)
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