Emerson Rosemount 648 Reference Manual page 39

Reference Manual
00809-0200-4648
3.4.4 Rosemount X-well Installation
Rosemount X-well Technology is only available in the Rosemount 648 Wireless and 0085
pipe clamp sensor factory assembled complete point solution. Rosemount X-well
Technology will only work as specified with factory supplied and assembled pipe clamp
sensor.
In general, pipe clamp sensor installation best practices shall be followed (see Rosemount
0085 Pipe Clamp Sensor
requirements noted below:
Procedure
1. Direct mounting of transmitter on pipe clamp sensor is required for Rosemount X-
2. Transmitter head shall be placed away from dynamic external temperature sources
3. Insulation (½-in. thick minimum) is required over the sensor clamp assembly and
4. Although it will come factory configured as such, ensure that pipe clamp RTD
Rosemount 648 Wireless
Reference
well Technology to properly function.
such as a boiler.
sensor extension up to transmitter head to prevent heat loss. Apply a minimum of
six inches of insulation on each side of the pipe clamp sensor. Care should be taken
to minimize air gaps between insulation and pipe. See
Note
DO NOT apply insulation over transmitter head.
sensor is assembled in 3-wire configuration. See
unique_14_Connect_42_section_rkb_bb1_qkb
Figure 3-8: Rosemount 648 Wireless with Rosemount X-well Technology
Installation Drawing
Manual) with Rosemount X-well Technology specific
#unique_14/
for more information.
Installation
May 2020
Figure 3-8.
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