476671/B
35
Installation requirements
Topics
Supply voltage requirements, page 35
Uninterruptible power supply (UPS) requirements, page 35
Cables and wiring requirements, page 36
Compass deviation requirements, page 37
Dry docking requirements, page 38
Requirement for classification approval, page 38
Supply voltage requirements
The supply voltage must kept within ±10% of the installation’s nominal voltage.
Maximum transient voltage variations on the main switchboard’s bus-bars must not exceed
-15% to +20% of the nominal voltage (except under fault conditions).
Related topics
Simrad MF90, page 13
Installation requirements, page 35
Uninterruptible power supply (UPS) requirements
It is important to ensure continuous operation of the MF90 system independent of any
varying quality of the vessel's mains supply. The use of uninterruptible power supplies
(UPS) is therefore required.
Uninterruptible power supply units are not included in the standard MF90 system delivery.
These items must be purchased locally. Several commercial types are available.
Note
Make sure that the Uninterruptible Power Supply (UPS) does not generate switching noise
in the same frequency band as the MF90 system.
Summary of Contents for Simrad MF90
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