Quick Start Guide
Figure 1-1: Sensor Orientation
Install sensor within 80 ° of vertical.
Figure 1-2: Rosemount 3900/3900VP Sensor Dimensions
A. Temperature comp solution ground
B. Reference junction
C. pH electrode
D. ¾-in. male national pipe thread (MNPT)
E. 1-in. MNPT
F. Wrench flats 1.30 in. across
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November 2020
Emerson.com/Rosemount