Emerson Process Management 3422 Manual Do Utilizador

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Installing the transducers
Section 7: Maintenance and troubleshooting
 Reference, Installation, and Operations Manual
June 2013
3-9000-743 Rev S
5.
Replace the O-ring and Backup O-ring on the transducer holder. It is highly 
recommended that the O-rings be replaced when the transducer is removed from the 
holder or stalk. Make sure that the contoured side of the ring is facing away from the 
mount. Lubricate with Molykote111 Silicone Grease or equivalent.
Note:
 Replacing the O-rings at this point minimizes the chances of damaging the 
transducer by dropping it. 
6.
Apply a small amount of nickel anti-seize (N.A.S.) compound (P/N 2-9-9960-134) to the 
outer threads of the transducer holder (
7.
Carefully install the transducer holder assembly into the transducer mount. Make sure 
the threads of the holder and mount are correctly aligned. Use a 1 1/4” socket and 
screw the transducer assembly into the mount. Tighten to securely seat the assembly in 
the mount. Do not over tighten (
).
8.
If applicable, install the mount cover by rotating the tag and sliding the mount cover 
over the 1 1/4” hex head of the transducer holder. Align the mount’s two screws with 
their respective screw holes and tighten. The screw holes can be located as they are 
marked with an arrowhead, “V” on the mount rim.
Figure 7-7  M-mount cover and chordset with “V” arrowhead mark  
A.
B.
C.
A.  Mount cover captive screws
B.  Mount cover “V” alignment arrowhead
C.  Chordset “V” alignment arrowhead