Simrad SU90, Приемо-сдаточные испытания в порту

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409977/B
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Visual inspection of the Operating Panel
A visual inspection of the Operating Panel is required to verify that the unit has not been
physically damaged during the installation..
Prerequisites
The SU90 has been set up with its hardware units connected as specified in the SU90
Installation manual . The SU90 is turned off. You need the following equipment:
• Multimeter
Procedure
1 Make sure that the unit’s serial number has been recorded in the list of hardware
items.
2 Make sure that the physical installation of the unit has been completed.
a If the unit is installed inside a rack or in a closed compartment, make sure that
ample ventilation is provided to avoid overheating.
b Make sure that ample space is provided around the unit to allow for
maintenance and replacement of parts.
c Make sure that the bolts, screws or studs holding the unit are of the correct size.
d Make sure that the correct flat and shake-proof washers have been used.
e Make sure that all nuts have been tightened properly.
3 Make sure that the Operating Panel is installed in the correct location, and that it is
suitably oriented for easy maintenance and replacement of parts.
4 Make sure that the unit is not physically damaged, and that the paint-work is clean
without dents or scratches.
The physical handling of the unit during the installation may have caused some
minor scratches to the paint-work. This can be accepted. However, if rough
handling has caused serious damage to the unit, this must be recorded with a written
statement and necessary photos, so that corrective actions can be made.
5 Make sure that the unit is firmly connected to ship's ground.
a Make sure that the unit is securely connected to the ship's 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 Make sure that cable installation has been completed.
a Make sure that all cables leading to and from the unit have been properly
mounted and secured.
b Make sure that enough slack has been provided on each cable to allow for
maintenance and replacement.
Visual inspection