Emerson Rosemount 398R Reference Manual page 16

Installation
February 2019
Figure 2-2: Exploded View of Ball Valve Kit PN 23765-00
2.3.2 Installation Without Ball Valve
Rosemount 398R and 398RVP Sensors may be installed through a weldalet or pipe tee or "Y" when
used with a process connector (PN 23166-00 or 23166-01). The sensor should be installed within
80° of vertical, with the electrode facing down.
Figure 2-3: Typical Mounting Details-Retraction Version
Note: Sensor must be mounted at an angle between 10° and 90° above the horizontal.
Pipe tees and weldalets provided by customer.
Only Rosemount 398R should be used with a sensor head junction box.
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Reference Manual
00809-0100-3098
Calibration and Maintenance