Ronan XSD-1000 User Manual
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Truck Present Alarms
The first box defines whether alarms are enabled during a Truck Present cycle. This
option should always be selected.
The Truck Present ‘ON’ Delay is for delaying the start of Truck Present cycles and is
primarily for applications where trucks may stop on a weight scale after triggering the
Truck Present Photo-eye. This value will delay the start of the cycle. Normally, the
value here is zero.
The Maximum Truck Present Time should always be 60 seconds. This value minimizes
false alarms due to the statistical algorithms used.
The Truck Present ‘OFF’ Delay value is used to maintain a Truck Present cycle when the
photo-eyes may become unblocked between the cab and trailer of a truck. If the gap
between a cab and trailer exceeds the distance between your photo-eyes, use this value to
compensate such that at least one photo-eye is blocked during the truck cycle.