Burkert Flowave 8098, Operating Instructions Manual

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279
SAW sensor – Maintenance
Type 8098 FLOWave L
17.23 Setting the offset value of the acoustic transmission
factor
Instead of setting the offset value of the acoustic transmission factor, you can calibrate it. See
chapter 17.24 .
To enter an offset value for the acoustic transmission factor, do the following:
→
Go to the CONFIGURATION view.
→
SAW sensor
→
Confirm to access the Parameter view.
→
Go to the
MAINTENANCE
view.
→
Calibration
→
Add. meas. values
→
Acoustic transmission factor
→
Offset
→
Enter value
→
Set the value of the offset.
→
Save.
The offset value of the acoustic transmission factor is set.
17.24 Calibrating the offset value of the acoustic
transmission factor
→
Make sure the teach-in conditions are similar to those of the process.
→
In order that the calibration result is correct, make sure the following conditions are met during the
teach-in procedure:
• The liquid temperature is stable.
• The liquid that flows through the device does not change. Or the liquid is still and the pipe is full and free
of bubbles.
During the calibration:
• The device status indicator is orange, if the operating mode of the device status indicator is set
to NAMUR (ex-works setting, see chapter 12.4 Changing the operating mode of the device status
indicator or switching off the device status indicator" ).
• The NAMUR mode "function check" is active. The outputs react depending on your settings.
Instead of calibrating the offset value of the acoustic transmission factor, you can directly set it. See
chapter 17.19 .
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