User's Manual

mn100 Digital Display
4
If there is no boat speed or change in heading registered on the
system for a period of 12 hours your Micronet instrument will switch
off to conserve power. A “POWER SAVE” alarm will sound before the
instrument system is switched off. Pressing any button within 10
seconds of the alarm sounding will allow the system to remain
switched on.
Backlighting will automatically shut down/off when operated in
daylight.
Artificial light WILL NOT recharge the battery.
Placing your Micronet instrument close to an artificial light
will seriously damage the instrument. Only recharge in
natural daylight.
Applying External Power
In cases where instruments are mounted permanently below decks
it will be necessary to apply an external power source to prevent
complete discharge of the built in battery.
Connections on the rear of the instrument allow a 9V to 24V DC
power source to be connected. Connections can be made to the
vessels DC system or a 9V battery pack may be connected. It is
recommended that permanent connection is only made when the
instruments are permanently fixed to the vessel and not when the
clip brackets are used.
Connection to a 9V (PP3) battery will fully recharge the internal
battery over a period of 24 hours.
1.4 Safety and Disposal
Your Micronet instrument contains Manganese Lithium Dioxide
batteries which should be disposed of correctly. Do not dispose of
any instrument in domestic waste. Refer to regulations in force in
your country.
If in doubt return the instrument to Tacktick Ltd. for correct
disposal.
Maintenance and Fault Finding
33
6.2.4 Low Battery Alarm sounds.
The power level is low in the Hull Transmitter, NMEA Interface or
Wind Transmitter. On any Digital Instrument enter Setup and
Calibration mode (Page 18) and scroll through to the Health
Chapter. Check the signal levels of the Transmitters and Interface
Box. The signal level should show a value of greater than 3 to
ensure correct operation. Connect the Hull Transmitter or NMEA
Interface to a 9 to 24V power source for 12 hours minimum to
recharge the internal battery. Leave the Wind Transmitter in bright
sunlight for 12 hours minimum to recharge its internal battery.
6.2.5 Data is shown as dashes.
The information is not been transmitted to the instrument Displays.
There may be lost communication between the Wind Transmitter or
Hull Transmitter and the instrument Displays. On any Digital
instrument enter Setup and Calibration mode (page 16) and scroll
through to the Health Chapter. Check the signal levels of the Hull
and Wind Transmitters. The signal level should show a value of
greater than 3 to ensure correct operation.
6.2.6 Compass Transducer rattles and/or splashes.
Good! The fluxgate compass is gimballed in a fluid filled container to
ensure it is not affected by the boats movement in the water.
6.2.7 Compass information displayed on the instrument system
does not agree with the main steering compass.
Ensure that the main steering compass has been swung correctly
and is showing correct information. Ensure that the instrument
system has completed correctly the “Swing” procedure described on
page 27. If there are still differences, look for magnetic objects (loud
speakers, pumps and motors, etc.) close to the Transducer and try
mounting the compass transducer in an alternative location. After
changing position of nearby equipment or the Compass Transducer it
will be necessary to re-swing the compass following the procedure
on page 27.
6.2.8 Boat Speed reads 0.
Information being transmitted from the Hull Transmitter is being
received with a Zero value. Check the paddle wheel for fouling, clean
it and make sure it turns easily.
6.2.9 Wind Speed reads 0.
Information being transmitted from the Wind Transmitter is being
received with a Zero value. If the anemometer cups at the top of the
mast are turning and the Wind Speed reads 0 then there is a
problem with your Wind Transmitter.