Quick Start Guide
9
June 2016
Figure 9. Remote mount up to 850 °F (454 °C) – 405C, 405P, and 405A
Note
When top mounting with a remote mount transmitter, use enough impulse piping to
dissipate the process heat to avoid damaging the transmitter.
Suggested top mounting orientations:
For steam up to 400 °F (204 °C) use direct mount orientation and for steam up
to 850 °F (454 °C) use remote mount orientation.
For direct mounting, ambient temperature should be less than 100 °F (38 °C).
For remote mount installations, the impulse piping should slope up slightly
from the instrument connections on the Rosemount 405A Model to the cross
fittings, allowing condensate to drain back into the pipe.
From the cross fittings, the impulse piping should be routed downward to the
transmitter and the drain legs. The transmitter should be located below the
instrument connections of the Rosemount 405A Model.
For technologies C, P, and A, depending on the environmental conditions, it may
be necessary to insulate the mounting hardware.
00825-0100-4810_RevHA.fm Page 9 Friday, June 17, 2016 3:15 PM
