Rosemount 3051S Electronic Remote Sensors - Emerson Process ...
Rosemount 3051S Electronic Remote Sensors - Emerson Process ...
Rosemount 3051S Electronic Remote Sensors - Emerson Process ...
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Reference Manual<br />
00809-0100-4804, Rev AA<br />
January 2011<br />
Reassemble the <strong>Process</strong><br />
Flange<br />
<strong>Rosemount</strong> <strong>3051S</strong> ERS System<br />
<strong>3051S</strong> ERS Secondary (Junction Box)<br />
1. Apply a light coat of low temperature silicon grease to the SuperModule<br />
connector.<br />
2. Insert the SuperModule connector into the top of the SuperModule.<br />
3. Push the terminal block into the housing and hold for screw position<br />
alignment.<br />
4. Tighten the captive mounting screws.<br />
5. Attach the Junction Box housing cover and tighten so that metal contacts<br />
metal to meet explosion-proof requirements.<br />
NOTE<br />
If the installation uses a manifold, see “<strong>Rosemount</strong> Manifolds” on page 2-21.<br />
1. Inspect the SuperModule PTFE o-rings. If the o-rings are undamaged,<br />
reusing them is recommended. If the o-rings are damaged (if they have<br />
nicks or cuts, for example), replace them with new o-rings.<br />
NOTE<br />
If replacing the o-rings, be careful not to scratch or deface the o-ring grooves<br />
or the surface of the isolating diaphragm when removing the damaged<br />
o-rings.<br />
2. Install the process flange on the SuperModule. To hold the process<br />
flange in place, install the two alignment screws to finger tight (screws<br />
are not pressure retaining). Do not over-tighten; this will affect<br />
module-to-flange alignment.<br />
3. Install the appropriate flange bolts.<br />
a. If the installation requires a 1 /4-18 NPT connection(s), use four<br />
1.75-in. flange bolts. Go to step d.<br />
b. If the installation requires a 1 /2–14 NPT connection(s), use two<br />
2.88-in. process flange/adapter bolts and two 1.75-in. bolts. Go to<br />
step c.<br />
c. Hold the flange adapters and adapter o-rings in place while<br />
finger-tightening the bolts. Go to step e.<br />
d. Finger-tighten the bolts.<br />
e. Tighten the bolts to the initial torque value using a crossed pattern.<br />
See Table 4-1 on page 4-12 for appropriate torque values.<br />
f. Tighten the bolts to the final torque value using a crossed pattern.<br />
See Table 4-1 for appropriate torque values. When fully tightened,<br />
the bolts should extend through the top of the module housing.<br />
g. If the installation uses a conventional manifold, then install flange<br />
adapters on the process end of the manifold using the 1.75-in. flange<br />
bolts supplied with the <strong>3051S</strong> ERS sensor.<br />
4-11
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