Instructions for Use MPR1 DATALOGGER
Manufacturer: zwo-399EN
RAUMEDIC AG, Hermann-Staudinger-Strasse 2, 95233 Helmbrechts, Germany Rev. 9, 2020-10-16
Page 65 of 98
4.8 Switching on the LCD background illumination
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 MPR1 has the following alarms:
• Physiological alarms (see point 4.9.1 Physiological alarms
)
• Technical alarms (see point 4.9.4 Technical alarms)
Technical alarms are subdivided into:
• Apparatus alarms (see point 4.9.4.1 Apparatus alarms
)
• Sensor alarms (see point 4.9.4.2 Sensor alarms)
Alarms are differentiated according to their priority. The MPR1 has high and medium priority alarms.
High priority alarms:
• all pressure alarms with the exception of the CPP
• severe technical alarms
Medium priority alarms:
• CPP
• Temperature
• Technical alarms with the exception of severe technical alarms
• Sensor alarms
The device generates optical and acoustic 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.
However the background illumination is no longer switched on, if a battery alarm already exists.
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 sole exceptions are the apparatus (device) alarms, alarm button fault, keyboard fault, NFFS (Nand
Flash File System) memory fault and severe device faults. These alarms remain even after the cause has
been removed. Alarm button fault and keyboard fault: these remain so that the user can still understand
the cause of the alarm.
Memory fault in NFFS and severe device fault: system generated, continued system operation is no longer
possible.
Once the info message is seen, this alarm is deleted.
The muting / reset key has the function muting / reset for the active alarm conditions. Pressing for
longer than 2 s causes a global suppression or global muting / reset.
If different priority alarms exist, the higher priority alarm signal is signalled (acoustically, optically). Short
pressing of the muting / reset key switches the acoustic signals off. The disabled acoustic alarm will
be displayed in the main screen via the symbol beside the parameter which caused the alarm. If the
alarm conditions still exist, the higher priority alarm is still indicated visually (red LED flashes).
If a new alarm occurs, then the acoustic alarm may be triggered again dependent on the priority of the new
alarm.
This document is for information only
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