FlowCERT

Recovery of Speedy communications is automatically initiated by the
FlowCERT unit. If there is no response from the Speedy, the FlowCERT
will continually send initialisation information until communication
resumes. If the auxiliary (bottom) display shows the “lostcomm” message
then check that the wiring is correct and the baud rate is correct for your
speedy sensor. Baud rate can be viewed and edited in P133 in the “Device
Comm” – “RS485” sub-menus, the default baud rate for the “Speedy”
sensor is 9600.
Maintenance
General
The extent of the maintenance and the interval is dependant on the following
factors:
• Material wear
• Measurement medium and the channel/pipe hydraulics
• General precautions for running these measurement facilities
Flow velocity
Sluice slime, grease and films of oil will have little or no effect on velocity
measurement. In instances where stronger coatings or a complete
embedding of the sensor into sludge, fibrous substances or sand/silt will
affect the measurement signal such that a measurement error or a
measurement loss could be possible. In such cases regular maintenance and
cleaning of the “Speedy” sensor will be necessary.
Wear and tear from abrasive medium to the Speedy’s transmit and
receiving sensors will lead to a weakening of signal, in extreme cases this
may lead to the complete failure of the sensor, and in such instances, the
sensor may have to be replaced.
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