7
Safety Manual
00809-0200-5100, Rev GB
Scope of the Product
February 2017
Scope of the Product
Disturbing echoes within the radar beam from flat obstructions with a sharp edge may lead to a
situation where the Rosemount Tank Gauging Safety System can no longer be used for safety
related functions.
The Rosemount Tank Gauging Safety System is designed for a level rate of up to 50 mm (2
inches) per second.
In addition to the requirements mentioned above, the following constraints apply for the
Rosemount Tank Gauging Safety System:
Turbulent product surface is not permitted
Foam on top of the product surface is not permitted
Solid products are not permitted
Level rate may not exceed 50 mm/s (2 in./s)
Still-pipe Array Antenna with hinged hatch
The Rosemount 5900 Radar Level Gauge including the SIL alarm output is not safety-rated
during maintenance work. This includes opening of the 5900 still-pipe array antenna, hinged
hatch version during for example manual gauging (hand-dip) or product sampling.
During hatch opening, system will go to de-energized state (alarm). If needed, alternative
means should be used to ensure process safety during opening of hatch.
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