SCANNING
When the HYDRO+ is programmed for "differential" or "average" level Operation
(P001 = 4 or 5), two transducers must be used. In this case, the transmit pulse is time
shared between the transducers via the "Scanner" relay. See INSTALLATION
Interconnection \ Transducer, and PARAMETERS Relay Function (P111).
When echo processing is complete, (if more than 1 vessel is monitored) the scanning
relay changes state to supply the transmit pulse to the other transducer after the Scan
Delay (P727).
Scan Delay is automatically set by Measurement Response (P003). When high speed
scanning is required (sometimes the case for equipment position monitoring), the
Scan Delay may be reduced. Reduce the Scan Delay only as required, otherwise
premature scanning relay fatigue could occur.
PARAMETERS
TECHNICAL REFERENCE
PL-507 151
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