Emerson Rosemount 3300 Series Reference Manual page 24

Rosemount 3300 Series
3-2
High voltage that may be present on leads could cause electrical shock:
Avoid contact with leads and terminals.
Make sure the main power to the 3300 transmitter is off and the lines to any other
external power source are disconnected or not powered while wiring the gauge.
Reference Manual
00809-0100-4811, Rev AB
July 2003