medin Medical Innovaons GmbH
Adam-Geisler-Str. 1
82140 Olching, Germany
+49 8142 448 460
info@medin-medical.com
www.medin-medical.com
IFU_medin-NC3 EN
Rev 05 Status as of 28.04.2021
55 of 68
The alarm Oxygen concentraon high/low is triggered when the measured oxygen concentraon is outside of the set
limits. These thresholds are always automacally set in the FiO
2
alarm thresholds mode by the medin-NC3® at the
level of the set interval (can be set under alarm sengs; see chapter 5.13) around the target oxygen concentraon.
In FiO
2
alarm thresholds manual mode, they are set via manual updang at the level of the set intervals around
the oxygen target value acve at this me. The thresholds that are acve due to the current seng are displayed
in the target oxygen concentraon eld as superscript and subscript numerals. Thus, for example, at a set target
oxygen concentraon of 30% and an alarm interval seng of ± 3%, the oxygen concentraon low alarm is triggered
if the measured oxygen concentraon is less than 27%, and the oxygen concentraon high alarm is triggered if the
measured oxygen concentraon is greater than 33%.
Warning:
When seng the alarm thresholds for CPAP pressure high (yellow), CPAP pressure low and oxygen concentraon, it
must be ensured that the alarm thresholds are set so as to be as limited as necessary for the paent since otherwise
these alarms are unusable.
If a very high ow is used due to signicant leakage or if a very small prong is used, the Disconnecon and CPAP
pressure low alarms can be negavely aected by the pressure that develops in the generator as a result. In these
cases, the threshold of the CPAP pressure low alarm must be set very carefully and as high as possible.
If the alarm Baery low – Connect power supply unit does not disappear despite connecng the power supply unit
and deleng the alarm text (by triggering a push nocaon or another alarm (red)), there may be a defect of the
medin-NC3®. Contact a service technician and do not use this medin-NC3® for the me being.
Please note:
When using pushes which generate a CPAP pressure of 18 mbar or more and which are supplied by means of high
push ows or a long paent tube containing a constricon, the Feed pressure high and CPAP pressure high (red)
alarms may be generated during pushes. This combinaon generally also acvates the text message Press alarm
reset to restart ow, whereby the medin-NC3® stops the ow emission unl the Alarm Reset buon is pushed.
Aer pressing the buon, the reacvaon of the ow takes approximately 10 seconds. To avoid this, the push ow
must be decreased and constricons in the tube system must be eliminated.
Alarm reseng:
Alarms are automacally canceled when the alarm condion is no longer present. However, the text message
connues to be displayed for approx. one minute and is then deleted.
8.3 Emergency program
If high-priority alarms occur during operaon of the medin-NC3® due to errors or supply breakdowns, the
medin-NC3® tries to maintain operaon as long as possible. In doing so, the normal funcon of the medin-NC3®
is limited as follows:
- Instead of Leak-Assist or pushes, the medin-NC3® limits its operaon to a normal basic CPAP; that
is, the medin-NC3® does not emit any more manual pushes, apnea pushes and backup pushes. The
Leak-Assist funcon also pauses.
- The mode change of the medin-NC3® is limited: The mode can be changed only if the emergency
program has been triggered due to a Disconnecon alarm. Otherwise the error must be corrected
prior to changing the mode.
- The ow emied by the medin-NC3® is limited to a maximum of 8 L/min. If a ow of ≤8 L/min was set
previously, this seng will be maintained. Otherwise, only a ow of 8 L/min will be emied instead of
the ow set. Aer the emergency program, the set ow will again be automacally emied in CPAP
and Apnea CPAP mode.