Emerson Rosemount 389, Справочное руководство

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Figure 2-4: Flow Through and Insertion Installations
A. Angle flow
B. Straight flow
C. Pipe "Y"
D. 1 ½ -in. x 1-in. reducing bushing
E. 1
½
-in. pipe tee
F. 1
½
-in. pipe "Y"
G. flow
Note
Valves and fittings by others. Mount the sensor at least 10° from horizontal.
Note
Do not use large pipe wrenches to tighten the sensor into a flange or other type of
mounting.
2.3 Electrical installation
Figure 2-5 through Figure 2-19 provide the guidelines for wiring Rosemount 389/389VP
sensors to various Rosemount transmitters.
1. If the cable needs to be extended, use a high quality four-conductor shielded
instrument cable available from Rosemount.
Note
If the cable is too long, loop up the excess cable. If the cable has to be shortened,
splice and terminate each conductor and make sure that the overall (outermost)
drain wire is not shorted out with either of the two inner drain wires (shields).
2. Signal cable should be run in a dedicated conduit (preferably an earth grounded
metallic conduit) and should be kept away from AC power lines. A spade lug kit is
provided in a plastic bag wrapped around the cable.
Reference Manual Install
00809-0100-3389 February 2019
Reference Manual 15