Calibrating Autospray - Leica iNEX User Manual

10.2 Calibrating AutoSPRAY

10.2.1 Latency
The most critical parameter for AutoSPRAY is the latency value. Latency is
the timing delay from when the switch status is toggled from ON to OFF
or OFF to ON, to when the spray nozzle on the boom stops and starts
spraying.
The quickest way to estimate the latency of the sprayer is to use a stop
watch to time the delay between turning a section ON and product being
delivered from the actual section. This may be a very small value, a few
tenths of a second and hard to measure accurately.
A more accurate measure of latency can be performed by measuring the
distance travelled at a given speed.
1. Drive slowly in a straight line for 200m
with the sprayer ON. The tank should
contain only water for the purpose of
this exercise. Mark the ground where the
end of the boom passes with two pegs
and a rope half way along the spray run.
2. Drive over the pervious spray run at a
right angle again with the sprayer ON
allowing AutoSPRAY to change the state
of the sections. Ensure that there is
enough distance before crossing over
the marked line for the boom trailer to
straighten up behind the tractor.
Measure the distance from the rope to
where the sprayer actually reacted.
iNEX User Manual
Page 80 Rev 2