Instructions for Use RAUMEDIC
MPR2 logO
Manufacturer: zwo-400EN
RAUMEDIC AG, Hermann-Staudinger-Strasse 2, 95233 Helmbrechts, Germany Rev. 9 2020-09-22
Page 74 of 99
3. Internal fault (such as failure of reference measurement)
Immediately after detection the alarm is activated by a flashing question mark “?” in the display field of the
measuring channel concerned. If the alarm refers to a single measuring channel, the measuring function of
the other channels is still ensured.
However, if a severe error is recognised which renders a continuation of operation with the apparatus
impossible, this fact is also indicated in a pop-up window and an alarm of high priority is activated. The
operator can only shut down the apparatus. All other keys are blocked.
4. Oxygen module error
The alarm will be released, if at least one of the following situations is present:
- The PHB transfers an error code indicating that the self-test has failed.
- There is an error in the time behaviour of the data transmission from the PHB (time-out, extra data
records transmitted).
The error is indicated by the flashing “Module?” display in the area of the digital display of the pO2 value.
The measuring functions of the other channels are not affected. In case of an alarm, an alarm of medium
priority will be released.
5. pO2 sensor error
In screen 4, the following further pO2 sensor catheter data are displayed under Diagnosis pO2:
Remaining cycles
LOT
Expiry date
Remaining running time.
In contrast with previous firmware versions prior to 2.00.0053, these values are now only
displayed, but are no longer monitored or indicated by technical alarms.
4.9.4.2 Sensor alarms
Sensor alarms are alarms of medium priority. The following alarms have been classified as sensor alarms:
(1) Pressure sensors have been removed
(2) Temperature sensor has been removed
(3) Multi-parameter sensor has been removed (this error consists of the parameters P2, T2, pO2
contained in the sensor errors which will be displayed as SENSOR? in the individual channels).
(4) Error in the memory of the multi-parameter sensors.
(5) Error measuring the pO2 value (indicated by error bits of the PHB, except error bit 6, which is not
evaluated. The amplitude of the reference signal is evaluated separately).
(6) Temperature sensor in the oxygen catheter defective.
The sensor alarms are indicated by the term “Sensor?” flashing in the display field of the measuring channel
concerned.
If a sensor has been removed, no value will be displayed any more as soon as the alarm has been
acknowledged (with Info -> OK -> OK).
Exceptions are the sensor alarms (5) and (6). With these sensor alarms, the alarm remains active even
after the info key has been pressed.
This document is for information only
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