140
SAW sensor - Maintenance
Type 8098
Diameter of the
measurement
tube
Minimum flow
rate at 1 m/s
Refresh time
Recommended volume in litres, to
get an accurate K factor
Minimum volume
in litres
DN15
16 l/min.
Long
100
0.6
Short
0.2
Very short
0.1
DN25
42 l/min.
Long
250
1.7
Short
0.5
Very short
0.2
DN40
93 l/min.
Long
560
3.7
Short
1
Very short
0.5
DN50
150 l/min.
Long
900
6
Short
1.6
Very short
0.9
Table 15:
Minimum volume necessary for a teach-in procedure depending on a known volume
→
Stop the flow.
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Select the device in the navigation area.
→
SAW sensor
→
Maintenance
→
Calibration
→
Stand. meas. values
→
Flow rate
→
K factor
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Teach-in by volume
The current K factor is displayed.
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Start the teach-in procedure.
If the cut-off function is enabled, it is automatically deactivated.
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Let the liquid flow through the device into the tank.
When the desired volume is reached:
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Enter the volume that has flown in the tank.
The new settings are displayed.
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Finish
The new K factor is used.
If the cut-off function has been automatically deactivated, it is enabled again.
If the calibration fails, a message is displayed. Refer to chpt.
19.9 Messages due to calibration or simulation.
English