Trend Memory Problems - Nellcor N-200 Operator's Manual

Troubleshooting
13. OXYGEN SATURATION display is erratic; ECG
LOST indicator is flashing.
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Trend Memory Problems

14. Trend data is not available.
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The ECG electrodes may be displaced, dislodged, or
disconnected from the ECG cable.
The ECG cable may be disconnected from the patient
module or powerbase/interface connector.
If the ECG signal is coming from an ECG monitor, the
input cable may have become dislodged from the ECG
IN/OUT connector on the rear panel of the N-200.
The N-200 may not be plugged into a functional outlet
supplying mains power.
Data in the trend memory may have been erased.
The memory battery may be defective. Contact
qualified service personnel.
Try a different powerbase if one is available.