Doc #: 60-00118 Rev. A
39
Screen Freeze
To freeze the screen to enable annotating a snapshot or taking manual velocity measurements
during an exam, press the green freeze icon on the screen or press and hold the snapshot icon
on the remote.
When the envelope is on, the Mean Velocity is calculated by averaging the velocities from
spectrogram data. When the envelope is turned off and manual cursors are used to measure the
Max and Min Velocities, the Mean Velocity is estimated using the following formula:
(Max V * .66) + (Min V * .33) = Mean Velocity
Press and Hold
