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EPOCH 4PLUS
Note: Manual Mode calibration is facilitated by viewing the digital measurement
in Depth-%Amplitude mode.
After activating the API 5UE software and inputting a reference notch depth, use the
following steps to calibrate the EPOCH 4PLUS in Manual Mode:
1. Find the signal from the reference notch.
2. Adjust your screen range to adequately display the full range of motion of the
reference notch signal.
3. Adjust GATE 1 to encompass the full range of motion of the reference notch signal
and bring the gate to below 40% FSH.
4. Use the AUTO80% key [F5] to bring the peak amplitude of the reference notch signal
to 80% of FSH.
5. Press the REF AMAX key [F1] to collect the peak amplitude signal and assign this
value as A
max
.
Figure 108 Collecting Peak Amplitude Signal
6. Move the transducer towards the reference notch until the peak has dropped to 40%
FSH on the leading edge of the signal. Press the REFT1 key [F2] to collect the 6 dB
drop position of the leading peak and assign this value as T
1
.
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