Endress+Hauser Proline Prosonic Flow 91W Brief Operating Instructions page 25

Proline Prosonic Flow 91W
4.1.2 Connecting and Grounding Prosonic Flow W DN (½ to 2½") Multicore cable
!
Note!
The Prosonic Flow W DN 15 to 65 (½ to 2½") is grounded via the cable gland.
Fig. 23: Connecting and grounding the measuring system (DN15 to 65)
1 Cable sheath
2 Bared braided screen (pre-prepared)
3 Rubber grommet
4 Internal contact point for the grounding on this level (External inspection not possible)
5 Cable gland
6 Cable gland cover
7 Grounding mechanism
Procedure
1. Screw the cable gland (5) into the transmitter housing.
2. Guide the sensor connecting cables through the cable gland cover (6).
Threat the sensor connecting cables into the transmitter housing. 
3.
/grounding mechanism (7). This ensures that the cable entry will be a) tight 
Align the outer end of the rubber grommet (3) with the end of the cable gland (5)
and b) the cable is correctly grounded to the transmitter housing at the internal contact
point (4) once tightended.
An external inspection is not possible, so it is important to follow this instruction.
4. Tighten the cable gland cover (6) clockwise.
Endress+Hauser
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Wiring
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