Instructions for use Primus Infinity Empowered SW 4.5n 261
Technical data
Measuring range N
2O 0 to 100 Vol%
Resolution of the measurement 0.1 Vol%
Resolution of the displayed value
(for insp. and exp. N
2O)
1Vol%
Accuracy ±(2 Vol% + 8 % rel.)
MAC (xMAC)
Measuring range 0 to 9.9
Resolution of the displayed value 0.1
Accuracy Derived value from gas measurement values
Anesthetic agent detection Automatic
Primary agent Min. 0.3 Vol% (typically 0.15 Vol%)
Secondary agent At the latest: at 0.4 Vol%
1)
,
becomes primary agent if expiratory xMAC is more than
0.2 MAC above the former primary agent
Cross sensitivity None referring to alcohol (<3000 ppm),
acetone (<1000 ppm), methane, water vapor, NO, and CO
Drift of measurement accuracy Compensated by cyclic zeroing. Zeroing is performed auto-
matically and with ambient air. This means there is minimal
change to the gas concentrations in the breathing circuit.
Zeroing interval
Devices with O2 sensor cells 8 hours
Devices with paramagnetic O
2
measurement
2)
24 hours 2 hours
Maximum time until emptying of the
water trap is necessary
41 h (sample gas under BTPS conditions, at 23 °C ambient
temperature)
1) Exception: At a Desflurane concentration of more than 4 Vol% a mixture will be detected at the latest when the concen-
tration of the second anesthetic gas increases to over 10 % of the Desflurane concentration.
2) The respective value depends on the PGM used which is displayed on System Information page.
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