Raymarine Wind & Close Hauled Wind Instrument ST60 - Manual (Page 13)

Chapter 1: Operation 1
Chapter 1: Operation
1.1 Getting started
This handbook describes how to operate, maintain and install the Raymarine
ST60 Wind instrument and ST60 Close Hauled Wind instrument. These
instruments show:
• Wind speeds and directions
• Velocity Made Good (VMG) information, when boat-speed information is
available,
• Tack angle, when heading information is available.
CAUTION: Calibration requirement
The ST60 Wind instrument and the ST60 Close Hauled Wind
instrument are calibrated to factory (default) settings when first
supplied. To ensure optimum performance on your boat, these
products must be calibrated before use. Do NOT use either one of
these products until it has been calibrated using the procedures in
Chapter 4, Calibration .
If the CAL legend on the digital display flashes for the first 30 seconds after any
power up, use the appropriate procedures in
Chapter 4, Calibration to:
1. Apply the factory defaults.
2. Carry out the linearization procedure.
Displayed information
The information on the ST60 Wind and ST60 Close Hauled Wind instruments is
presented by means of a pointer and a digital display. This information can be
either true or apparent, depending on which mode is selected.
Pointer
The pointer shows the true or apparent wind direction. The scale range given by
the ST60 Wind instrument is a full 360
° , whereas the ST60 Close Hauled Wind
instrument gives an expanded indication from -60 ° to +60 ° about the bow or
stern of the boat.