Instructions for Use RAUMEDIC
MPR2 logO
Manufacturer: zwo-400EN
RAUMEDIC AG, Hermann-Staudinger-Strasse 2, 95233 Helmbrechts, Germany Rev. 9 2020-09-22
Page 69 of 99
4.8 Switching on the LCD background illumination
When the MPR2 is operated by means of a mains adapter, the background lighting is switched on
permanently. The key is functional only during battery operation. If the background illumination is
switched on, it remains on for 60 seconds, if it is not intentionally switched off by pressing on the key
again. Every key operation on the apparatus will start the 60 seconds again. In case of permanent
operation, the background illumination will remain on. If the key is held continuously, the background
illumination will be switched off after 60 seconds nonetheless.
Explicit switch off is possible by pressing the key again.
If a (random) alarm is activated, the background illumination is switched on, if the battery charge amounts
to at least 30 minutes. If the remaining battery charge is less than 30 minutes, the illumination will not be
switched on.
4.9 Alarm system
The MPR2 has been fitted with the following alarms:
• Physiological alarms (cf. chapter 4.9.1 Physiological alarms
)
• Technical alarms (cf. chapter 4.9.4 Technical alarms)
Technical alarms classified into:
• Apparatus alarms (cf. chapter 4.9.4.1 Apparatus alarms
)
• Sensor alarms (cf. chapter 4.9.4.2 Sensor alarms)
Alarms are classified according to their priority. The MPR2 has been fitted with alarms of high priority and
alarms of medium priority.
Alarms of high priority:
• All pressure alarms with the exception of the CPP
• Severe technical alarms
Alarms of average priority:
• CPP
• Temperature
• Technical alarms with the exception of severe technical alarms
• Sensor alarms
The appliance releases optical and acoustical alarms according to the alarm priority. In order to make
optical alarms more noticeable, the background illumination of the display is switched on for every alarm,
even if the apparatus is operating in a power saving mode with the key lock switched on. The background
lighting, however, will not be switched on any more, when a battery alarm has been released already. All
alarms are non-permanent alarms, which means that the optical and acoustic signals are switched off again
automatically, when the alarm condition disappears.
The only exceptions are the following apparatus alarms: alarm key error, keyboard error, memory error on
NFFS (Nand Flash File System) and severe apparatus errors. These alarms are retained, even if the cause
has disappeared. Alarm key error and keyboard error: So that the user can follow up the cause for the
alarm.
Memory error on NFFS and severe apparatus error: Caused by system, a continuation of operation is not
possible.
By viewing these info messages these alarms are deleted.
The Alarm key has the function AUDIO OFF for the active alarm conditions. Press for longer than > 2
sec. for global AUDIO PAUSING or global AUDIO OFF.
If alarms of different priority have been released, the alarm signal with high priority is signalled (acoustically,
optically). Short depression of the Alarm key switches the acoustic signal off. The switched-off acoustic
alarm is indicated in the overview screen by the symbol alongside the
parameter which caused the alarm. If the alarm conditions continue, the alarm of high priority will continue
to be signalled optically (red LED flashing).
This document is for information only
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