Specifications; Troubleshooting - Standard Horizon WS150 Owner's Manual

7 Specifications

Power Supply
• 10.7 to 16.6 VDC, 30mA nominal, 40mA with
backlight on.
Operating temperature
• 32° to 113°F (0° to 45°C)
Size of display
• 4.4 x 4.4 x 1" (112 x 112 x 24mm), overall
depth 1.4" (35mm) behind panel.
Display type
• Twisted Nematic (TN) grey background,
32° to +158°F (0° to +70°C).
Illumination
• Red LED.
RF interference
• Less than 6 dB maximum quieting on any
marine radio channel with 3 dB gain antenna
within 1 meter of instrument display head.
Wind Direction
• Apparent and true 180 degrees to port and
starboard.
Wind speed
• 0 to 99 knots, or 0 to 50 m/sec with maximum
wind speed recording.

8 Troubleshooting

Note: to isolate a problem, the masthead may
be connected to the red connector on the
WS150.
1 No display:
• Check DC power connections and DC polarity
with voltmeter. Voltage must be between 10.7
and 16.6 volts.
2 Faulty wind speed or wind direction
indication:
• 1. Possible defective Masthead Cable
2. Possible defective Masthead Assembly
3. Possible defective instrument
• Remove the Masthead Assembly from the
masthead and connect it directly to the
instrument red moulded cable. If the indication
is normal, the Masthead Cable is defective. If
the problem persists, contact your supplier for
service.
NOTE: The instrument and Masthead
Assembly may be connected directly for
linearization of the repaired or new equipment
prior to installation.
3 Simulation Mode
• At power up, if all the segments display for 5
seconds then the instrument is in simulation
mode.
14
Alarm
• Wind speed alarm user settable value.
VMG display
• Displayed in 0.1 steps to 19.9 knots and 1.0
steps above 20 knots.
NMEA input (for VMG and True Wind Data
calculation)
• Accepts VHW sentence from SL150 speed log
or other instrument with NMEA output.
NMEA output
• NMEA 0183 format VWT, VWR, MWV, VPW
for RP150 system repeater or other NMEA
compatible instrument. Short circuit protected.
Drive capability for up to four NMEA
receivers.
Transducer cables.
• 5 pin Fuji connector for wind mast head
transducer, 5 conductor cable for NMEA input,
output and power connections.
Transducer
• Lightweight weatherproof type with 30 meters
of cable. Electronic sine cosine output.
4 Masthead cable is not long enough:
• Use the optional HS50 cable. Maximum of two
cables can be connected.
5 Wind speed:
5a Erratic or no wind speed
• Check green wire in junction box or other splice
in masthead cable.
• Check power supply.
5b Tricup seems to spin slower
• Remove head and clean tricup
5c Slow wind speed (Tricup spins freely)
• See wind speed calibration section 4.6.3
6 Wind Direction:
6a Erratic or no wind direction, does not
point in all directions (port/starboard)
• Check white and green wires
• Check power supply.
6b Reacts slow to wind changes
• See Wind Direction Damping section 4.6.4
6c Mast Cable wires and their descriptions
• Shield: Battery Ground
Red: + 12VDC
Green: Wind Speed
Brown: Wind Direction
White: Wind Direction
WS150 User Manual