Kistler-Morse KM L-Cell Bolt-On - Manual (Page 50)

Chapter 5. L-Cell Installation on Skirt-Supported Vessels
5-13
Mounting L-Cell
CAUTION
Do not install L-Cells in the rain.
Do not trap moisture under the environmental cover.
1. See Figure 5-24. Wipe down a 4.5” (114mm) diameter surface for the
outside L-Cell, centered on the template mounting hole, with
degreaser. This cleans the bare metal surface and adjacent area.
2. Apply a thin coat of KM rust inhibitor to the exposed 2.50” (63.5mm)
diameter bare metal surface. Fig. 5-25.
CAUTION
Do not apply rust inhibitor beyond this area, or the environmental
cover will not adhere properly.
3. Connect the L-Cell’s red, black, and white wires to the corresponding
K-M Test Meter terminals. Turn on power to the Meter
and set its Simulate/Test switch to theTest position. Fig. 5-26
Note
If a KM Test Meter is not available, refer to Appendix G, Alternate
Method for Checking Output, before proceeding.
4. Apply a small amount of sealant to the threads of the three #6-32 x
1 / 4 ” socket head cap screws.
CAUTION
Only use Sikaflex 1A polyurethane sealant or Dow Corning
RTV 739 or RTV 738. Other sealants may contain acetic acid,
which is harmful to sensors and electronics.
Figure 5-27. Drilled
and Tapped Holes
(outside view of skirt)
#1
3.5”
(89mm)
#3
#2
3 / 16 ” (4.8mm) Diameter Hole for Cable
(for outside L-Cell only)
#5A
Mounting Hole
Bare Metal Surface (typical)
Outside of Skirt Inside of Skirt
#2
#3
#1
Figure 5-24. Wipe
down surface
Figure 5-25. Apply
rust inhibitor
V Figure 5-26. Test L-Cell