Philips MX400 - Freezing An Individual Wave; Freezing All Waves; Measuring Frozen Waves; Changing The Wave Speed

1 Introduction
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Freezing An Individual Wave
To freeze a wave,
1 Enter the Wave menu for the measurement by selecting the wave on the screen.
2 Select Freeze Wave.
The realtime wave is replaced with the frozen wave.
Freezing All Waves
To freeze all waves on the screen,
1 Select the Freeze Waves SmartKey.
All realtime waves are replaced with frozen waves.
Measuring Frozen Waves
To measure a frozen wave,
1 Select the frozen wave.
If you are using touch, this automatically positions the vertical cursor. The cursor can be
repositioned by touching the required point on the wave, or
2 Using the SpeedPoint or another pointing device or touch: use the right/left arrow keys to move
the vertical cursor.
The vertical cursor moves through the time axis and the current value is displayed next to the
cursor.
3 Use the up/down arrow keys to activate and move the horizontal cursor.
The horizontal cursor measures the wave value, which is displayed above the cursor line. If the
wave is a pressure wave, the cursor value can be stored as a systolic, diastolic or mean pressure
value; if the pressure wave is a PAP wave it can also be stored as a PAWP value; for pressure waves
P, P1 to P8 it can also be stored as an IAP value. The stored value appears in the trend database as
a manually entered value.
Changing The Wave Speed
Lowering the wave speed compresses the wave and lets you view a longer time period. Increasing the
speed expands the waveform, giving you a more detailed view.
To change the wave speed:
1 Select the frozen wave.
2 Select Change Speed.
3 Select a speed from the list.
Updating The Frozen Wave
To update the wave, that is freeze the current wave:
1 Select the frozen wave.
2 Select Freeze Again.