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2. The rotational speed is determined at the start of a CM measurement if so
specified in the Measuring point configuration
. If the rotational speed is
outside the defined band, the Detector displays an error message. Then you
can adopt the determined rotation speed. If no signal is measured for the
rotational speed, you can enter the speed manually.
3. If active sensors are used, the Detector initializes the sensor and measures
the bias voltage. This must reach the defined range
within 10 s. Otherwise
the Detector cancels the measurement.
4. The Detector then uses the values last transferred by the Trendline software to
initialize the PGAs in the following order: main PGA -> demodulation PGA (also
see Analog branches in the Detector
. If these values are not suitable, the
Detector defines new settings for the PGAs.
5. Measurement and determination of characteristic values:
a) The Detector measures the specified channels.
b) The time signals are used to calculate the FFT.
c) The Detector uses the FFT to calculate the characteristic values.
6. If you selected the averaging function
for this measuring point in Trendline
the measurements are repeated according to the number selected:
a) The average value of all FFT values calculated is used for FTT averaging.
This is then used as the basis for calculating the characteristic values.
b) When averaging the characteristic values, the characteristic values for each
measurement calculated first. The average value for all characteristic values
calculated is then determined (steps 5a-5c are repeated).
7. If you have set universal characteristic values in the configuration, they will be
queried sequential. The capture can be canceled by the Esc button.
8. Finally, the temperature is measured providing this has been specified in the
configuration. The measurement can be canceled by the Esc button.
9. The measured values are displayed in an overview
.
6.7.1 Selection of the measuring point
Using the menu
Condition monitoring
you decide first of all if you want to record
data at a measuring point of a pre-configured measuring route or at a new
measuring point (see "Free measurement
"). In the lower area a statistic
shows how many measurement points of the pre-configured measurement route
were already measured.
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