Polytec OFV-3001, User Manual

Page: 52 / 101

5-10
5 Operating the Vibrometer
Menu
SETTINGS In the menu SETTINGS the measurement ranges and filters are set. The
contents of the menu depends on the decoders installed. The individual
settings are described in the following.
Tracking Filter
In this line you can set the tracking filter. The input signal from the sensor
head is pre-processed with the tracking filter. You will find information on the
settings OFF / SLOW / FAST of the tracking filter in
section 4.2.2 and in
section 4.2.3 .
Velocity Decoder
In this line you can set the active velocity decoder. This line is only present if
both decoders OVD-01 and OVD-02 are installed. The velocity decoders are
abbreviated as described above in
table 5.1 .
Velocity Range
In this line you can set the velocity measurement range. The possible settings
depend on the velocity decoder selected. You will find information on setting
the velocity measurement range in
section 4.2.2 .
Velocity Filter
In this line you can set the cutoff frequency of the low pass filter. In position
OFF the upper frequency limit of the active velocity decoder is shown. You will
find information on setting the low pass filter in
section 4.2.2 .
Displacement Range
This line is only present if a displacement decoder is installed. In this line you
can set the displacement measurement range. The possible settings depend
on the displacement decoder installed. You will find information on setting the
displacement measurement range in
section 4.2.3 .
Signal
This line shows the optical signal level as a bar display.
Note !
If the PLL decoder is selected and the velocity measurement range 1 is set, it is not
possible to change to the HF decoder because this decoder does not have the velocity
measurement range available.
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