Diagnostic Procedure for the ST60 Wind System
You will require a digital multimeter and tools to gain access to the instrument system and
cables.
Set your multimeter to DC voltage on a 20-volt scale.
When testing the system for the following voltage measurements, access to inside the instrument junctions within cable runs is
required. Care must be taken not to short circuit or brake any of the connections.
1.) Firstly using your digital multimeter connect the negative meter lead to the
Screen wire and the positive meter lead to the Red wire
and a reading of 8 Volts should be present.
This 8 Volts is the supply from the instrument to the
transducer, if it is not present then the following applies:
a.) Instrument is faulty
b.) If the measurement is taken along the cable run then there may be an open connection in some other position along the cable run.
2.) TESTING THE WIND DIRECTION
a.) With the multimeter negative lead connected to the
Screen and the positive lead connected to the Blue wire a variable voltage of
2Vdc-6Vdc should be observed and varies in proportion to
wind vane rotation.
b.) With the multimeter negative lead connected to the Screen and the positive lead connected to the Green wire a variable voltage of
2Vdc-6Vdc should be observed and varies in proportion to
wind vane rotation.
c.) If these readings are present then assume the wind direction
transducer is functioning correctly.
3.) TESTING THE WIND SPEED
a) With the multimeter negative lead connected to the Screen wire and the positive lead connected to the Yellow wire, a variable
voltage of 0Vdc to 5Vdc should be present.
b.) If this reading is present then assume the wind speed transducer is functioning correctly.
Again if you checked the grub screw on the vane and performed this on board diagnostic test with no faults, we then can assume your
problem is in the control
head. At this point you would need to send it in to our
service department for
repair.
Thank you for contacting Raymarine Inc.