JRC JLN-205MK2, Quick Reference

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Without qualified service personnel, do not attempt to install this unit. Contact our
service center or agent for any electrical work or installation of this unit. Otherwise
it may cause a malfunction.
Do not install this unit at the place exposed to direct sunlight for a long time or hit
by hot wind or where the temperature rises above 55
℃
. Otherwise it may cause a
fire or a breakdown.
Do not place the unit on a wobbly stand or any unsteady foundation. Otherwise it
may cause the unit to fall, resulting in an injury or a damage.
Do not put this unit in the cabinet, and do not cover with the nonporous thing such
as cardboard. Heat shuts oneself up, and it may cause a fire or a breakdown.
When this unit is suddenly moved from a cool place to a warm place, drew
condensation water may form on the inside windows, and the liquid crystal part
can become visually difficult. In this case, leave the unit for a while until becoming
dry condition. Then operate the unit.
When installing this set, be sure to connect the grounding wire or the grounding
plate to the grounding terminal of the unit. Otherwise you may suffer from an
electric shock.
Do not turn on the power switch of the Doppler log while the ship is on the shore.
Otherwise, the transducer may malfunction.
Do not use an organic solvent such as thinner or benzine when you clean the
surface of the unit. For cleaning the surface, remove the dust and wipe with clean
dry cloth.Otherwise, the painting on the surface may be damaged
Install the sensor where there are no obstacles, in order to ensure that GPS
signals
can be directly received from satellites without interference or reflection of signals
from surrounding objects.
Whenever possible, select a place with the following characteristics.
1. An open space, which allows uniform reception of satellite signals.
2. Far away from any high power transmission antennas.
3. Outside radar beams.
4. Away from the INMARSAT antenna by at least 5 meters and outside the INMARSAT
beam.
5.
Away from the antenna of a VHF transmitter and a direction finder
by at least 3 meters.
6.
Away from a Magnetic Compass by at least 1 meter.
7. 3 meters or more away from amateur radio antennas.
If it is difficult to find an ideal site, select a place temporarily and install the equipment. Conduct
a test to make sure that the proper performance can be obtained and then fix the equipment in
position. If it is installed at an improper place, reception accuracy may be impaired.
CAUTION