Klein Marine Systems, Inc. HydroChart 5000, Operation And Maintenance Manual

Page: 39 / 82

Sonar Head Unit Installation
3-3
Since a variety of power connectors are in use throughout the world, it may be
necessary to use an adapter or to cut off the US-type plug on the AC power cable
and re-terminate it with a new plug. Should this modification be required, the
wires should be connected in accordance with Table 3-1.
3.3.1 Grounding
It is important that the HydroChart 5000 Sonar System be well grounded to
minimize potential hazards to the operator and electrical interference from other
equipment. A good ground for the system is a low impedance, well conducted path
to sea water. Always check the quality of the electrical ground by verifying that the
AC power source ground has no voltage potential with respect to the vessel hull.
3.3.2 TPU and SonarPro Workstation Circuit Breakers
The main AC power input line is protected by a switch/circuit breaker in both the
TPU and the SonarPro Workstation. The one on the TPU is located on the front
panel on the far right as shown in Figure 3-6 on page 3-12. The one on the
SonarPro Workstation is located on the pack panel just to the right of the AC
INPUT connector as shown in Figure 3-5 on page 3-9. To reset a switch/circuit
breaker, switch it to ON.
3.4 Sonar Head Unit Installation
When installing the Sonar Head Unit, lightly grease the male pins of the
waterproof connectors before connecting them. The silicone grease serves an
important lubricating and corrosion protection function. Use a high quality,
nonconducting grease such as Dow Corning DC-4. Before connecting the deck
cable, make a general inspection of the Sonar Head Unit. Check that the fasteners
holding the Sonar Head Unit to the mounting platform are tight. Check that all
cables running from the Sonar Head Unit are secured. A safety cable should also
be attached to the Sonar Head Unit in the event that it breaks free.
Table 3-1:
TPU Power Cable Wiring
COLOR FUNCTION
Green Ground (earth)
Blue or white Neutral
Brown or black Hot