User's Manual

Panorama™ Operating Instructions 0070-00-0575-50 7 - 5
Views Bedside Tab
7.1.3.4 Calipers
Calipers are reference and measurement lines that measure the time and amplitude of any
ECG waveform. The Calipers sidebar button replaces the Mark Event sidebar button
when the Freeze sidebar button is selected. Select the Calipers sidebar button to display
the Calipers dialog box (FIGURE 7-2).
FIGURE 7-2 Calipers Dialog Box
7.1.3.5 Calipers Sidebar Button
The Calipers sidebar button activates the Calipers dialog box (FIGURE 7-2).
The Calipers are reference and measurement lines that indicate the readout time and
amplitude of any ECG waveform. They are activated and controlled in the Calipers view
screen.
Using the Calipers
Activate the Calipers view screen by selecting the Calipers sidebar button. In the
Calipers view screen, the Vert button places vertical lines on the waveform to measure the
readout time, and the Horiz button places horizontal lines on the waveform to measure its
amplitude.
At any time during the process, selecting the Clear button will reset the Calipers and
allowing the user to perform a new measurement. If a measurement of a different waveform
in the current interactive screen is desired, that waveform must be selected while in a clear
Calipers view screen.
A mouse can be used to reposition the reference and measurement lines. Clicking the right
mouse button has the same effect as selecting the Vert or Horiz buttons in the Calipers view
screen. Calipers operate to an accuracy of +/- 5%.
Vertical Calipers (Time)
1. Select the Vert button. A dashed vertical reference line is placed at the left of the
waveform. The dashed reference line represents the 0 value starting point.
2. Adjust the location of the dashed, vertical reference line as follows:
• For coarse adjustments, select the desired location. The reference line will move to that
point.
• For fine adjustments, use the left/right arrow keys to position the reference line at the
desired point.