DESIGNER’S HANDBOOK 4189350049C EN
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Example of result of 7-point calibration, the rudder is positioned at every 15 degrees, and the actual current is
entered as the input point value for each.
The function is the same as explained for 3 point calibration above.
In most installations, it is not necessary to make any adjustments in the XDi menu when the RTA 602 is installed
and set up.
5.6.4.1 Pitch application and other
The multi-point linearisation can of course be used for several applications; at present it has been used in a
customised library for a pitch angle indicator where the pitch input was quite un-linear.
The DEIF RTA 602 analogue rudder sensors (4-20 mA) do not need more than 3 linearisation
points to fulfil the accuracy requirements in the ISO standard. That is why DEIF standard
libraries do not support more than 3 linearisation points; this also makes installation easier.
