Speed Calibration - Raymarine ST60+ SPEED INSTRUMENT Owner's Handbook Manual

Chapter 4: Calibration
Hold down
Intermediate calibration

Speed calibration

This speed calibration procedure involves carrying out two runs over a measured
distance, to enable a calibration factor to be determined and applied to your
ST60+ Speed instrument, to ensure optimum accuracy. Each calibration run
comprises outward and return legs, to minimise the affect of tidal drift when the
calibration factor is determined.
To carry out a speed calibration, start the Intermediate calibration procedure and
use the speed button to proceed to the Calibration run length screen (see
Speed calibration
of the
follows:
1. With the Calibration Run Length screen displayed, press the timer and reset
buttons together to enter adjust mode. In this mode, the displayed run length
flashes on and off.
2. Set the length of the intended calibration run, using either the timer button
to decrement or the reset button to increment the run length value. You can
set any value between 0.25 and 2.50.
3. Press timer and reset buttons together to commence the speed calibration.
The Cal status screen is displayed. The text at the top of the screen alternates
between START 1 and the calibration factor currently applied.
4. Start the outward leg of the calibration run and as you pass the start point,
press the trip button, so the screen shows OUTWARD at the top. As the
calibration run proceeds, the displayed value will increment.
speed and trip
Software
version
flow chart). Proceed with the speed calibration as
for approximately 4 seconds
Instrument
status
speed
speed
Carry out speed calibration
as detailed in
Speed calibration - sheets 1 & 2
(or REPEATER)
speed
sheet 1
29