Emerson Rosemount 936, Справочное руководство

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2. Remove the protective plug mounted on the source conduit/cable entry inlet and
pull the wires through the source inlet ( Figure 5-6 ). Use a
¾
-in. - 14 national pipe
thread (NPT) or M25 x 1.5 conduit connection/cable gland to assemble the cable/
explosion-proof conduit to the detector.
Figure 5-6: Source with Cover Removed
A. Housing
B. Terminal board
C. Inlet conduit
D. Detector holding plate
E. Earth terminal
3. Connect the wires to the required terminals according to the wiring diagram.
See Wiring to source terminals .
4. Connect the grounding wire to the ground screw located on the exterior of the
detector.
Ensure that the source is well grounded to earth ground.
Note
In case of installation in the US, use the internal grounding connection for the
equipment grounding connection and the external connection for a supplementary
bonding connection where local codes or authorities permit or require such
connection. The external bonding conductor is manufactured from copper and is 4
mm
2
in size. Use a tightening torque of 16 in.-lb. (1.8 Nm) to secure the bonding
conductor.
5. Place and secure the source back cover by screwing on the cover and securing the
back-screw bolt.
Installation Reference Manual
October 2021 00809-0100-4036
46 Emerson.com/Rosemount