Burkert Flowave 8098, Operating Instructions Manual

Page: 262 / 354

262
SAW sensor – Maintenance
Type 8098 FLOWave L
17.4 Setting the direction of the flow
By default, if the flow direction is opposite the arrow located on the front of the device, the displayed flow
rate values are negative.
If you want that the device displays positive flow rate values, do the following:
→
Go to the
CONFIGURATION
view.
→
SAW sensor
→
Confirm to access the Parameter view.
→
Go to the MAINTENANCE view.
→
Flow direction
→
Choose
Standard
if the arrow located on the front of the device shows the flow direction, or choose
Reverse
if the flow direction is opposite the arrow located on the front of the device.
→
Save.
The flow direction is set and the displayed flow rate values are positive.
17.5 Calibrating the offset value of the flow zero point
Adjust this parameter:
• before carrying out a teach-in procedure of the K factor.
• after maintenance work.
• if the measured flow rate is not zero whereas the flow has been stopped.
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 flow zero point, you can directly set it. See chapter 17.6 Setting
the offset value of the flow zero point .
To calibrate the flow zero point, do the following:
→
Charge the pipe. To avoid bubbles and air in the pipe, make sure it is full of liquid.
→
Go to the CONFIGURATION view.
→
SAW sensor
→
Confirm to access the Parameter view.
→
Go to the MAINTENANCE view.
→
Calibration
English