Trio™ Operating Instructions 0070-10-0666-01 2 - 23
Operations Parameter Menus
2.4.1.5 ECG Lead, Size and Filter Settings
FIGURE 2-26 ECG settings on the Main Display
Use the Navigator™ Knob to select the following ECG settings (located in the upper left
corner of the ECG waveform tile): ECG Lead, ECG Size, and ECG Filter.
1. ECG Lead
• The selectable leads when in 3 Lead mode are I, II and III
• The selectable leads when in 5 Lead mode are I, II, III, aVR, aVL, aVF and V
CAUTION: If a 3 Lead cable is used when a unit is set to 5 lead mode,
no ECG signal will be obtained. If a 5 lead cable is used
when the unit is set to 3 lead mode only Lead I, II and III are
operable.
2. ECG Size
The selectable waveform sizes are: 0.25, 0.5, 1 and 2.
• A waveform scale bar displays on the right side of each ECG channel. The height of
the waveform bar is directly proportional to the waveform amplitude
3. ECG Filter
The available filter modes are: MONITOR, EXTENDED and SURGERY. These modes offer
different frequency ranges over which the ECG signal is measured and displayed along with
varying amounts of noise suppression.
• MONITOR Mode
MONITOR mode should be used for typical monitoring conditions. Its frequency range
of 0.50 Hz to 40 Hz filters out most low frequency noise that can be generated by patient
motion, muscle artifact, etc.
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