DMTA-10040-01EN, Rev. E, February 2018
Chapter 5
268
Figure 5
‑
205 The signal after AUTO MIX (
left
); with angle/gain adjustment (
right
)
10. Adjust
H MIX GN
(horizontal MIX gain, C key) and
V MIX GN
(vertical MIX
gain, D key) until the signal is approximately 6 major divisions long.
Combined horizontal and vertical gain adjustment is not available while using the
MIX
menu. Adjustments to horizontal and vertical gain must be made separately and
equally.
11. Press the FREEZE key (
) to enable signal acquisition.
12. Place the probe in a defect-free area near the thru-wall flaw, and then press the
NULL foot switch.
13. Scan the tube for defects to verify the
MIX
signal.
5.4.3.2
Enhancing the Signal with the LO PASS Filter
You can use the
LO PASS
filter to clean your signal and improve your display.
To enhance the signal with the LO PASS filter
1.
Press the MAIN FILTER menu key (
), followed by
LO PASS
(B key), and then
rotate the knob until
10 Hz
is displayed.
IMPORTANT
Содержание nortec 600
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