Medin NC3 - Alarm presettings at device start-up; Other alarms and messages

Backup push info -
Not actually an alarm, just a
nocaon that a backup push
was triggered due to apnea. Users
can decide whether or not to
receive this informaon aurally.
However, this informaon is
always indicated visually.
-
Type of alarm Volume in (dB)
In the case of
A-weighted background
noise volume (dB)
High priority (red) 66 ± 3 53 ± 2
Medium priority (blinking yellow) 66 ± 3 53 ± 2
Low priority (steady yellow) 66 ± 3 53 ± 2
Informaon signal (push) 66 ± 3 53 ± 2
medin Medical Innovaons 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
54 of 68
Table 7: Other alarms and messages
(1)
Delay ∆t: This corresponds to the maximum me which passes from the me the alarm condion occurs
unl the alarm is triggered.
The alarm volume is:
The funconality of the alarm signal generator is checked at each system start-up. The user must conrm that
the alarm sound can be heard.
Alterable alarms:
The user can set the CPAP pressure low, CPAP pressure high (yellow) alarms and the permied deviaon interval
for the Oxygen concentraon high / low alarms. This can be done using the seng in the Alarm Sengs menu
(see chapter 5.13). Aer the numerical values are adjusted, the modied sengs become acve and are saved
when this change is conrmed by pressing the dial. No other alarms can be modied.
Alarm presengs at device start-up:
Upon start-up, the CPAP pressure high (yellow) alarm is set to 12 mbar and the CPAP pressure low alarm is set to
3 mbar. The alarm interval for monitoring the oxygen levels set is always set to ± 5% at start-up.
If the medin-NC3® is restarted, the alarms are reset to these levels. This cannot be changed by the user.
The alarms CPAP pressure low (yellow) and CPAP pressure high (yellow) analyze whether the average value of the
CPAP readings is outside of the alarm thresholds (can be set under Alarm Sengs – see chapter 5.13). Thus the
alarm CPAP pressure high is triggered if the CPAP average value was above the alarm threshold for more than
one second. The alarm CPAP pressure low is triggered if the CPAP average value was below the alarm threshold
for more than 15 seconds.
Since the CPAP pressure low and CPAP pressure high alarms refer to the average CPAP pressure, the start and end
of the alarm is thus further delayed (see table at the start of the chapter). This likewise causes the CPAP pressure
low alarm to not be reset unl the CPAP average value is again above the alarm threshold and not directly aer
adjusng the alarm threshold or correcng the problem.