GE Bently Nevada 3300/25, Руководство по эксплуатации

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3300/25 Dual Accelerometer Input Monitor Operation Manual
96
20.9 Example High-Pass Filter Configuration
This example shows how to configure channel A with a high-pass filter that has a corner
frequency,
f
hp
, of 24000 CPM (400 Hz). The High Pass Filter is located after the
Integrator/Gain Stage. (While working through this example you can refer to the
procedure for setting the high-pass filter which is at the start of this section).
Follow the steps outlined in the Filter Configuration Section.
1.
Set the type of filter as a High-Pass filter as shown in the table of Section 20.5 . The
table in Section 20.5 shows that for a High-Pass filter for channel A
Install: W27 and W76
Remove: W26 and W65
2.
Set the High Pass Filter after the Integrator/Gain Stage as shown in the table for
channel A in
Section 20.6 .
On the Main Board
Install:
W6E
Remove: W6D,W6F, and W18B
On the Filter Board
Install:
W37,W78
Remove: W79,W83, and W84
3.
Set the high-pass filter corner frequency
f
hp
. Since the desired
f
hp
is not in the
High-Pass Freq. Configuration Table Section, you will need to refer to the Non
Standard High Filter Options, Section 20.8 , for the jumper configuration.
4.
f
hp
is between 319 Hz and 3008 Hz, so the value of K is 11.797. Set the following
jumpers for K = 11.797 (shown in the table in Section 27.5).
Install: W11,W31,W38,W40