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