Kistler-Morse KM L-Cell Bolt-On - Manual (Page 16)

Chapter 3. L-Cell Installation on Vertical Legs
3-2
Figure 3-4. Vertical Location of L-Cell Sets
for Legs with Braces and with Free Leg
greater than MinH
L-Cell sets
mounted at
mid-height of
free leg
(typical)
Alternate
location —
L-Cell sets
mounted at
mid-height of
free leg at
top (typical)
Support Legs without X-Braces
See Figure 3-3.
•
If the free leg distance (length between foundation and the vessel) is
between minH (see Note) and 11’ (3.4m), mount the L-Cell sets at mid-
height of the free leg.
• If the free leg distance is more than 11’ (3.4m), mount the L-Cell sets at
5’6” (1.7m) above the foundation.
• If the free leg distance is less than minH, this is a special application
situation. Consult KM before proceeding further.
Support Legs with X-Braces
See Figure 3-4. If the free leg distance is minH or more, mount the L-Cell sets
at mid-height of the free leg.
•
Measure the free leg between the bottom of the lower x-brace or
horizontal brace and the top of the foundation.
• For an alternate location, measure the free leg between the top of the
upper x-brace or horizontal brace and the beam supporting the vessel.
See Figure 3-5. If the free leg distance is less than minH, mount the L-Cell
sets at the mid-height between the lowest braces.
Figure 3-3. Vertical Location of
L-Cell Sets for Legs without Braces
‘Free Leg’ H >
MinH
Minimum of 1 / 2 H
or 5’6” (1.7m)
L-Cell set
mounted at
lower of
mid-height of
free leg or
5’6” (1.7m)
(typical)
Figure 3-5. Vertical Location of L-Cell Sets for Legs with Braces and with Free Leg
less than minH
H
1 / 2 H
L-Cell set
mounted at
mid-point
between
lowest
braces
(typical)
‘Free Leg’
less than
minH
Alternate ‘Free
Leg’ less than
minH
H
1 / 2 H
‘Free Leg’
less than
minH
Alternate ‘Free
Leg’ less than
minH
L-Cell set
mounted at
mid-point
between
lowest
braces
(typical)
‘Free Leg’
H > MinH
1 / 2 H
‘Free Leg’
H > MinH
1 / 2 H
(Cont. Vertical Location of L-Cell Sets)
Note
minH is defined as the
minimum free height to
install sensors. The
height should be three
times the beam width or
12” (305 mm) , whichever
is highest of the two.