Olympus nortec 600 - Filter Menu - MAIN FILTER Key

DMTA-10040-01EN, Rev. E, February 2018
Chapter 484
when this function is enabled. The gain can then be changed in 1.0 dB increments. To
turn off the coarse-knob function, press one more time, which returns the gain
adjustments to 0.1 dB increments.
4.3.2 Filter Menu — MAIN FILTER Key
Filters
High-pass filters may be set from 0 Hz (OFF) to 100 Hz in 1 Hz increments, and
from 100 Hz to 1000 Hz in 5 Hz increments. To adjust the HI PASS filter settings,
press the MAIN FILTER menu key ( ) two times, followed by the A key, and
then rotate the knob to the desired value.
Low-pass filters may be set from 10 Hz to 100 Hz in 1 Hz increments, up to
500 Hz in 5 Hz increments, and up to 2000 Hz in 25 Hz increments, followed by
wide band. To adjust the LO PASS filter settings, press the MAIN FILTER menu
key ( ) two times, followed by the B key, and then rotate the knob to the
desired value.
CONT NUL (continuous null)
CONT NUL allows a very low-frequency high-pass filter to be turned on, which
is useful to keep the null point of the eddy current probe at the specified point, if
required. When turned on, this function adds a 0.2 Hz, 0.5 Hz, or 1 Hz high-pass
filter. By default, this feature is set to OFF.
To turn on continuous null, press the MAIN FILTER menu key ( ) two times,
followed by the C key, and then rotate the knob to the desired value.
LINK
The LINK function is used to automatically adjust the values of the high-pass and
low-pass filters in accordance with the scanner speed (SCAN RPM). It is only
used for the rotating-scanner mode.
To turn on LINK, press the MAIN FILTER menu key ( ) two times, followed
by the D key, and then rotate the knob to ON.