Simrad ME70 Installation Manual page 249

3 Verify that the unit has been identified with the relevant product label(s), and that one
label includes the registration and serial numbers.
4 Check the physical installation of the unit.
a Verify that the compartment in which the Power Supply Unit is installed is
provided with ample ventilation to avoid overheating.
b Verify that the compartment is clean and dry.
c Verify that ample space is provided around the unit to allow for maintenance and
replacement of parts.
d Verify that the cabinet door can be fully opened for unrestricted access.
e Check that the bolts, screws or studs holding the unit are of the correct size.
f Check that the correct flat and shake-proof washers have been used.
g Check that all nuts have been tightened properly.
h Verify that the welds and support brackets to which the Power Supply Unit is
fastened are substantial enough to hold the unit securely under all operating
conditions.
i Check that all welds and brackets have been painted with the correct preservation
medium to prevent corrosion.
5 Check that the unit is firmly connected to vessel ground.
a Check that the unit is securely connected to the vessel ground with an earthing
strap. The strap must be in addition to any incidental electrical contact made by
the mounting lugs on the unit.
b Use a standard multimeter to check that the resistance between the unit and the
ship's ground is approximately 0 (zero) Ω.
6 Check the cables.
a Check that all cables leading to the unit have been properly mounted and secured.
b Verify that enough slack has been provided on the cables to allow maintenance
and replacement.
7 Repeat for each Power Supply Unit.
Related topics
Setting to work summary, page 238
Inspecting the ME70 installation, page 240
345737/C
Setting to work
247