Burkert Flowave 8098, Operating Instructions Manual

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SAW sensor – Maintenance
Type 8098 FLOWave L
• If you do not measure water at 23 °C ±5 °C (73.4 °F ±9 °F), then use the values of the same parameter in
the menu Device verification on the display and in the report. Refer to Table 36 .
Table 36: Parameter values to compare if the measured liquid is not water at 23 °C ±5 °C (73.4 °F ±9 °F)
Menu item Current measured value of the Parameter in the
menu Device verification on the display and in the
report
DF DF
Acoustic transmission factor Acoustic transmission factor
Amplitudes SAW signal
Signal WGx yz
Times of flight A0
WGx
4. Evaluate the deviations of all parameters:
• If the deviations of all parameters are less than the values that are given in Table 37 , then the sensor
operates correctly.
• If the deviation of at least one parameter exceeds the value that is given in Table 37 , then the sensor can
possibly be defect. Contact Bürkert.
Table 37: Deviation values for a defect sensor
Parameters Deviation
DF
> 10 %
Acoustic transmission factor
> 25 %
Amplitudes SAW signal > 25 %
Signal WGx yz > 25 %
Times of flight A0 > 10 %
WGx > 10 %
17.3.6 Reading out the calibration date at the manufacturer
To read out the calibration date of the device at the manufacturer, do the following:
→
Go to the
CONFIGURATION
view.
→
SAW sensor
→
Confirm to access the Parameter view.
→
Go to the MAINTENANCE view.
→
Device verification
→
Factory calibration Date
→
Go back to the parent menu.
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