Endress+Hauser Prosonic S FMU90 PROFIBUS DP - Page 61

Prosonic S FMU90 PROFIBUS DP Commissioning
Endress+Hauser 61
4. Configure the downstream sensor (backwater or dirt detection).
Parameter set "Backwater sensor selection"
Navigation
Flow → Flow 1 +backwater → Backwater → Basic setup → Backw. sensor sel.
Parameter
• Input
Assign the downstream sensor to the channel.
• Sensor selection
Specify the sensor type.
Select the Automatic option for FDU9x sensors.
• Detected
Only displayed if Sensor selection = Automatic
Displays the sensor type detected automatically.
Parameter set "Backwater empty calibration"
Navigation
Flow → Flow 1 +backwater → Backwater → Basic setup → Backw. empty calibration
Parameter
• Empty E
Specify the distance between the sensor membrane and the flume floor.
• Blocking distance
Indicates the blocking distance BD of the sensor.
Parameter set "Backwater detection"
Navigation
Flow → Flow 1 +backwater → Backwater → Basic setup → Backw.detection
Parameter "Ratio B"
Specify the upper limit B for the ratio h
2
/h
1
.
Backwater is reported if h
2
/h
1
> B.
Parameter set "Dirt detection"
Navigation
Flow → Flow 1 +backwater → Backwater → Basic setup → Dirt detection
Parameter "Ratio D"
Specify the lower limit D for the ratio h
2
/h
1
.
Dirt in the flume is reported if h
2
/h
1
< D.
Parameter set "Backwater"
Navigation
Flow → Flow 1 +backwater → Backwater → Basic setup → Backwater
Parameter
• Act. backw. level
Displays the current value of the downstream level h
2
.
• Act. flow level
Displays the current value of the upstream level h
1
.
• Act. ratio
Displays the current value for the ratio h
2
/h
1
.
• Flow 1
• Displays the flow currently measured.