Specifications

Section 15 00-02-0614
03-05-08 - 4 -
Pressure Vessel Installation: LS200, LS200N and L1100
Direct Installation into the Wall of the Pressure Vessel
CAUTION: Determine that the float travel is not obstructed by the
coupling in the vessel wall, internal baffles, etc. Do NOT use more than
one float shaft extension P/N 15000478.
Refer to the ‘Pipe Data’ and ‘Minimum Clearance’ tables below.
1. Make certain the float and extension are tight.
2. Before installing the level switch, use of a pipe thread sealant is
recommended. Screw the unit directly into the threaded
connection in the wall of the pressure vessel.
3. For LS200 and L1100, verify that the electrical connection is
positioned at the bottom.
4. For LS200N the 1/8” NPT pneumatic connection should be on
top (the 3/8” NPT vent connection should be on the bottom) for
service on a “Trip on Rising” application. The LS200N can be
modified for service on a “Trip on Falling” application.
5. Make the electrical wiring connections according to appropriate
wiring diagrams for the alarm or shutdown system to be used.
The electrical connection is 1/2”-14 NPT.
6. Ensure all electrical connections are insulated and the cover is
fully installed before reconnecting electrical power.
7. Verify all pressure connections are tight before pressurizing the system.
Clearance Reference Tables
Pipe Data Table
Nom. Size
(inches)
O.D.
(inches)
Schedule
Number
Wall Thickness
(inches)
Inside Diameter
(inches)
3 3.5 40ST 0.216 3.068
3 3.5 80XS 0.3 2.9
4 4.5 40ST 0.237 4.026
4 4.5 80XS 0.337 3.826
Minimum Clearance Table
Insertion Depth (inches) Vertical Clearance (inches) Product Name
Std. w/ 1” Extension Std. w/ 1” Extension
LS 200 4.6 5.6 2.8 3.15
LS 200N 5.43 6.4 3.3 3.9
L 1200 4.65 5.7 3.9 4.55
L 1200N 5.6 6.7 5.3 6.9
L 1100 4.4 5.4 3.4 4.05