AUTOHELM ST50 Wind Trim - 5. Operation; 5.1 Illumination; 5.2 Locking on (ST50 Wind Trim); 5.3 Locking on (ST50 Speed Trim)

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5. Operation
ST50 WindTrim and SpeedTrim Operation and Installation Handbook
ST50 WindTrim and SpeedTrim Operation and Installation Handbook
Contents
3
• Push and hold down the LOCK button for 1 second to switch on (If off), or
to display the current level of illumination (If already on)
Control of illumination levels is common to all ST50 instrument modules.
The control is always selected using the left hand push button (LOCK).
The ST50 Wind Trim and Speed Trim Instruments can only be used when a
Sea Talk compatible Wind/Speed Instrument is connected to the bus.
Information from the respective transducers is then is then put onto the
bus and displayed by the Trim instruments. F urther Trim instruments may
be connected to the bus to provide displays at secondary steering
positions.
5.1 Illumination
[=}~
LOCK
0*
b
[ B.D]
b
Q3
o
o
Pack Contents 5
1. Introduction 6
2. Control Head 6
2.1 Siting 7
2.2 Mounting procedure 7
Surface Mounting 7
Bracket Mounting 8
Flush Mounting 9
2.3 Power supply 9
2.4 Connection to SeaTalk compatible Instruments / Autopilot .. 10
2.5 Connection to separated Instruments 10
2.6 Ring Connection 11
3. Fault finding 12
4. Maintenance 13
4.1 Display units 13
4.2 Cabling 13
Advice 13
5. Operation 14
5.1 Illumination 14
5.2 Locking on (ST50 Wind Trim) 15
5.3 Locking on (ST50 Speed Trim) 15
6. Specification 16
• Push the LOCK button within 8 seconds to select the illumination level
L3 High
L2
Medium
L1
Low
LO
Off
Note: Display returns to previous status after 8 seconds.