4 Patient Alarms and INOPs
INOP Message, Indication
Spiro Patient Cat.
Spiro Purge Failed
Spiro Unkn. Sensor
INOP Message, Indication
NMT Alarm Suppress
NMT Cable Disconn
NMT Cable Unknown
NMT Cal Failed
NMT Cal Running
NMT Cannot Measure
NMT Equip Malfunct
NMT Impedance High
NMT Lead Off
NMT Neo Patient?
NMT Noisy Signal
NMT Sensor Malfunc
What to do
Mismatch of patient size configured in the host monitor and sensor type plugged into the module.
Check the instructions on selecting the correct sensor in the chapter on "Spirometry".
The purge operation could not be completed successfully. Check for kinked sensor tubings, hard
occlusions and make sure that the pump is running and all valves are switching.
A purge operation is in progress - no data update on the screen. Wait until purge is complete.
An unknown sensor ID code was detected. Use only the sensors listed in the "Accessories" chapter.
The module is running a firmware upgrade. Wait until upgrade is completed before resuming
NMT alarms are suppressed until the TOF count reaches zero for the first time.
No patient cable is connected to the NMT measurement module. Silencing this INOP switches the
NMT measurement off.
The patient cable connected to the NMT module is not supported or cannot be identified. Replace it
with a supported cable.
The NMT calibration cycle failed. Check that the sensor and the electrodes are placed properly, then
start another calibration. Ensure that patient's arm is kept still before and during the calibration cycle.
If calibration fails again, replace the patient cable. If INOP persists, contact your service personnel.
An NMT calibration is running. Wait until the calibration is complete.
NMT is unable to reliably derive measurement values. Check that the sensor and the electrodes are
placed properly and start another measurement. If this INOP persists, try another patient cable.
There is a problem with the NMT hardware. Unplug the NMT measurement module then plug it in
again. If the INOP persists contact your service personnel.
The impedance of the NMT stimulation electrodes has exceeded the allowed limit. Check that the
electrodes are placed properly, have firm skin contact and have not dried out.
This version of the NMT measurement module is not supported, or the module firmware is
incomplete and needs to be upgraded. Contact your service personnel.
One or both NMT stimulation electrodes have become detached from the patient. Check that both
electrodes have firm skin contact, that the electrodes are placed properly and that the lead wires are
The NMT measurement does not support neonatal patients. Check the patient category.
The NMT signal is too noisy to derive measurement values reliably. If electrosurgery is currently being
used, repeat the NMT measurement after it has stopped.
The current through the NMT stimulation electrodes is too high. Check that that the patient cable is
not visibly damaged. Disconnect and reconnect the patient cable. If this INOP persists, replace the
cable and/or module.
The signal from the acceleration sensor is out of the measurement range. Check that the acceleration
sensor is positioned properly. If this INOP persists, try another patient cable.
There is a problem with the acceleration sensor of the NMT patient cable. Disconnect and reconnect
the patient cable. If this INOP persists, replace the cable.
An NMT module firmware upgrade is in progress. NMT monitoring is currently not possible. Wait
until the upgrade has completed and this INOP is no longer displayed. Do not unplug the module or
switch off power.