Installing the sensor head 27
Reinstalling the cover
To reinstall the cover:
1 Install the supplied sensor cover o-ring (see “Spare Parts” on page 7). Make sure that it is well-
fitted in the groove of the front cover.
The sensor cover o-ring can be compressed only once. Each time the cover is removed, the o-ring
must be replaced.
—
Figure 11 O-ring fitted on the front of the enclosure
2 Once the o-ring properly fitted, close the cover and make sure pressure is evenly applied on the
o-ring (to maintain the IP67 rating).
3 Secure the fasteners in an alternate pattern (see below). Start all bolts by a few threads, and run
them hand-tight. Tighten mildly by hand, then to a torque of 8.1 N·m (6.0 lbf.ft).
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Figure 12 Close-up showing the o-ring and the closed cover
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