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Operation Manual
Heart Rate Measurement
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HR (Heart Rate)
You can calculate heart rates for a certain period of time.
1. Select HR in the Measurement menu. A bar appears allowing you to specify a measurement
area.
2. Specify the measurement range.
X
Place the bar at a desired position with the trackball, and press the Set button.
3. The system measures the heart rate within the specied range automatically. The measurement
results are displayed on the screen.
OB Calculations
Before Obtaining OB Calculations
Set GA Equation, GA Table and OB Measurement menus. The user can manually write, back up and
restore the GA Table. For more information on GA Equation and Table, refer to the Reference Manual.
For more information about other measurement menus and setup, refer to ‘Setting Measurements’ in
‘Chapter 7. Utilities’.
NOTE: For twins, distinguish fetuses by specifying them as Fetus 1 and Fetus 2 in the
Measurement menu. Press the Change button on the control panel to change a fetus to measure.
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