Kongsberg EM 122, Installation Manual

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Appendix A General safety rules
Appendix A
General safety rules
The Kongsberg EM 122 Multibeam echo sounder system operates on 230 Vac 50/60 Hz.
Note
The EM 122 is by default wired to 230 Vac .
For 115 Vac operation, please contact km.hs@kongsberg.com .
WARNING
This voltage may be lethal!
The following safety precautions must be followed at all times during installation and
maintenance work:
• Always switch off all power before installation or maintenance. Use the main
circuit breaker, and label the breaker with a warning sign that informs others that
maintenance or installation work is being carried out on the system.
• Do not open the rack or cabinet doors while in rough seas. It may swing open
suddenly and cause damage or injury.
• For safety reasons during troubleshooting on the equipment with power ON, two
persons must always be present.
• Read and understand the first aid instructions for electric shock.
• Whenever maintenance is carried out, it is essential that a first aid kit is available,
and that the maintenance personnel are familiar with the first aid instructions for
electrical shock.
• The various parts of the system are heavy. Make sure that the appropriate tools
and certified lifting equipment are available, and that the personnel are trained in
installation and maintenance work.
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