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8 Startup and parameterization
8.7.5
Monitoring the flow rate in the pipeline
A problem in the process or with the sensor can be detected if the flow rate measurement is too low or
too high.
This function enables the medium flow rate to be monitored and a report to be triggered if the flow rate
is too low or too high.
To trigger a report if the flow rate is too low or too high, set a flow rate range outside of which the device
generates a WARN LO or WARN HI warning and switches on the orange device status LED.
If a WARN LO or WARN HI warning is generated
1. check the process.
2. If the process is not the cause, check the condition of the sensor and clean it if necessary.
3. If the flow rate measurement still is not correct, contact the manufacturer.
1. If you do not wish to change any further parameters, go to the END function in the test menu and
press the
key in order to save the settings and return to the process level.
NOTE!
Deactivating flow rate measurement monitoring: Set W- = W+ = 0.
NOTE!
The units of the displayed values and the values to be entered manually correspond to the values se-
lected in chapter 8.6.2 "Choosing the flow rate unit, the number of decimals, and the counter display
unit", page 38.
FLOW-W.
W- = 0.000
1. Enter a flow rate value, below which a WARN LO warning message
is generated by the device.
2. Confirm
W+ = 0.800
1. Enter a flow rate value (W+ > W-) above which a WARN HI warning
message is generated by the device.
2. Confirm
END
NOTE!
The transistor or relay output can be configured to switch a load when the device generates a warning
(
see chapter 8.6.5 "Configuring outputs", page 44 and chapter 9.5 "Troubleshooting", page 76).
