ECG MONITORING
Model 7600/7800 Operation Manual
9.8 Low Signal Message
If the amplitude of the ECG signal is between 300µV and 500µV (3-5mm of amplitude at size 10mm/mV) for a
period of eight seconds a LOW SIGNAL message will be displayed in yellow.
If the trigger function appears to be erratic while the message is displayed, verify the following:
• Select the TRIGGER lead with the highest amplitude, typically Lead II or AUTO.
• The proper placement of the ECG electrodes. The ECG electrodes may need to be repositioned.
• The ECG electrodes still have moist conductive gel.
9.9 Pacemaker
Use the following procedure to activate or deactivate the pacemaker detection function:
1. Press the [ECG MENU] touch key from the main menu.
2. Press the [PACER DET] touch key to toggle between pacer detection ON and OFF.
• When a pacemaker has been detected, a P will start flashing in the heart symbol.
• The message PACER DETECT OFF will appear in red if the pacer detection circuit is not active.
WARNING – PACEMAKER PATIENTS: Rate meters might continue to count the pacemaker rate during
occurrences of cardiac arrest or some arrhythmias. Do not rely entirely on rate meter ALARM SIGNALS. Keep
pacemaker PATIENTS under close surveillance. See the SPECIFICATIONS section in this manual for disclosure of
the pacemaker pulse rejection capabilities of this instrument. AV sequential pacemaker pulse rejection has not been
evaluated; do not rely on pacemaker rejection with patients with dual chamber pacemakers.