Quick Start Guide
13
August 2015
Wafer sensors
4.3 Gaskets
The sensor requires a gasket at each process connection. The gasket material
selected must be compatible with the process fluid and operating conditions.
Gaskets are required on each side of a grounding ring. See Figure 9 below.
Note
Metallic or spiral-wound gaskets should not be used as they will damage the liner
face of the sensor.
Figure 9. Wafer Gasket Placement
4.4 Alignment
1. On 1.5-in. through 8-in. (40 through 200 mm) line sizes, Rosemount requires
installing the alignment spacers to ensure proper centering of the wafer sensor
between the process flanges.
2. Insert studs for the bottom side of the sensor between the pipe flanges and
center the alignment spacer in the middle of the stud. See Figure 9 for the bolt
hole locations recommended for the spacers provided. Stud specifications are
listed in Table 6.
3. Place the sensor between the flanges. Make sure the alignment spacers are
properly centered on the studs. For vertical flow installations, slide the O-ring
over the stud to keep the spacer in place. See Figure 9. Ensure the spacers
match the flange size and class rating for the process flanges. See Table 7.
4. Insert the remaining studs, washers, and nuts.
5. Tighten to the torque specifications shown in Table 8. Do not over-tighten the
bolts or the liner may be damaged.
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