DMTA-10040-01EN, Rev. E, February 2018
Chapter 486
If the BNC connector is used, it is automatically balanced (no internal or external load
is required).
FILT TYPE
The FILT TYPE function lets you choose between two types of filters: FIG 6 and
FIG 8. This option is only available for rotating scanner mode.
To access FILT TYPE, press the MAIN FILTER menu key ( ) three times,
followed by the C key, and then use the knob to select FIG 6 or FIG 8.
For more details on FILT TYPE, see “Filter Type — Figure 6 or Figure 8 Signals”
on page 134.
SIG TYPE
SIG TYPE (signal type—absolute or differential) is displayed only when using an
adaptor compatible with one of the six heat exchanger tubing applications (see
“Heat Exchanger Tubing Applications” on page 228).
Slide Rule
The NORTEC 600 instrument includes a useful slide-rule tool for determining the
standard depth of penetration for a given material at a specified frequency. The
user can select a material from the list or enter a specific conductivity value.
The slide-rule tool can also determine the necessary frequency for a given depth
of penetration. The separation angle is assumed to be 118 degrees for this
calculation.
To access the slide-rule menu, press the MAIN FILTER menu key ( ) three
times, followed by the E key. When the EDDY CURRENT SLIDE RULE menu is
displayed, use the FULL NEXT key ( ) to navigate the menu functions.
Additional navigation instructions and information is displayed in the help text at
the bottom of the screen (see Figure 4-12 on page 87).
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