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INTRODUCTION/ TABLE OF CONTENTS Step One
About Level Track Mounting Kit:Omega Engineering’s Level Track Kit is an adjustable mounting system for
installing multiple level sensors vertically withina tank. Mounted througha single point at the top of the tank,
upto4 different sensors can be located at any depth on the Level Track Kit. Omega Engineering’s LVCN‐ 11 or
LVCN‐ 12 electrical housing, and LVCN‐ 100, LVCN‐ 110 or LVCN‐ 20 compact relay controllers are designedto be
mounted directlyto the 3/4" NPT fitting at the top of the assembly. Level Track Kit mounts vertically through
a standard 2" NPT tank adapter or on a side mount bracket (such as the LVM‐ 30). Unlike prefabricated “trees”
or pipes, the Level Track
point of actuation of each sensor during processtesting.
Level Track Mounting Kit:The Level Track kit consists of the following:
Track:The track itself is approximately 1" square, and is from 2'to 10' long depending on model. The
track may be cutto len
side of the square. These grooves hold thesensor cars that attachto Omega Engineering sensors, and
also serve to contain the sensor wire. The bottom of the track is capped with an end cap. About 3/8"
from the top of the track isa hole fora locking pin that holds the track in position in the topfitting.
Sensor Car and Bayonet Adapter: The sensor car assembly is the heart of the Level Track Kit. It slides
in the grooves of the track, and is lockedinto position by a plastic bolt and screw. The bayonet to ¾”
NPT adapter hasa female ¾” NPTfitting on one end where the sensor (not included) will screw in, and
a bayonet fitting on the other end that attaches it onto the sensor car with a slight turn, with an o‐ ring
in betweento provide tension for the push‐ and‐ turn connection.
Kit allows you to experiment with sensor position to account for variations in the
gth if desired. Four separate grooves run the length of the track, one on each
2" NPT to Level Track Fitting: The track slides into the square center of a large fitting which has coarse
threads on the top, and 2" NPT‐ standard threads on the bottom. A slot inside the fitting mates with
the locking pinto hold the track in position.
Top compression fitting and wire gasket: Once the track is in the 2" fitting, the wires pass through a
thrust plate anda thick rubber gasket, and the assembly is held firmly in place by a top compression
fitting which screws onto the coarse threads. The top fitting has a 3/4" NPT threaded outlet for
connectingto conduit or for direct mounting ofa Omega Engineering LVCN‐ 11/‐ 12 electrical housing,
LVCN‐ 100, LVCN‐ 110 or LVCN‐ 20 series controller. Make sure the seal plug has been installed for
added protection.
Note:The wire gasket is not a vapor or water seal.
Table of Contents
Specifications:.........................................................................................................................................................3
Dimensions:.............................................................................................................................................................3
Safety Precautions: .................................................................................................................................................4
Makea Fail‐ Safe System:............................................................................................................................4
Assembly of Level Track Kit:...................................................................................................................................5
Components:..............................................................................................................................................5
Assembly of Sensor Car Kit: ...................................................................................................................................6
Components:...............................................................................................................................................6
Installation ..............................................................................................................................................................7
Mountingtoa Sensor: ...............................................................................................................................6
Selectinga Location: .................................................................................................................................9
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SPECIFICATIONS/DIMENSIONS Step Two
Level Track Mounting Kit:
Track lengths: 2’, 4’, 6’, 8’, 10’ or 12’ (1m, 2m or 3m)
Adjustability: Entire track length
Mixer velocity: Upto 1.5 fps (0.45mps)
Max. no. of sensors: Upto four (one per side of track)
Temperature range.: F:‐ 40to 176°
C:‐ 40 to 80°
Pressure range: Atmospheric
Track material: Polypropylene, 20% glass filled
Mounting thread: 2” NPT
Electrical Housing (not included):
Enclosure rating: NEMA 4X (IP65)
Enclosure material: Polypropylene (U.L. 94 VO)
Enclosure rotation: 300° swivel base
Conduit connection: ½” NPT
Termination: 12 pole socket terminal strip
Temperature range.: F:‐ 40to 158°
C: ‐40 to 70°
Side Mount Bracket (not included):
Bracket Material: Polypropylene
Mounting thread: 2” NPT
Tankinstallation: Bolt orplastic weld
Omega Engineering Electrical Housing Mounted on
Level Track Mounting Kit
Level Track Mounting Kit Side View
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SAFETY PRECAUTIONS Step Three
About This Manual:PLEASE READ THE ENTIRE MANUAL PRIOR TO INSTALLING OR USING THIS PRODUCT.
This manual includes information on the Level Track Kit installationfitting from Omega Engineering: LVM‐
11, LVM‐ 12, LVM‐ 13, LVM‐ 14 & LVM‐ 15 Series. Please refer to the part number located on the label to
verify the exact model which you have purchased. Many aspects of installation and use are similar
between models.
User’s Responsibility for Safety:OMEGA ENGINEERING manufactures several models of liquid level
sensors, controller and mounting systems. It is the user’s responsibility to select components that are
appropriate for the application, install itproperly, perform tests of the installed system, and maintain all
components. The failureto do so could result in property damage or serious injury.
Proper Installation and Handling: Use a proper sealant with all installations. Never over tighten the
components. Always check for leaks priorto system start‐ up.
Material Compatibility:The track, end cap, wire retainer clips, bayonet adapter and sensor car for all the
LVM‐ 11/‐ 12/‐ 13/‐ 14/‐ 15 models are made of glass filled PP (Polypropylene, a polyolefin). The sensor car
locking bolt and screw are made of PCTFE (polychlorotrifluoroethylene, a fluoroplastic), the top
compressionfitting, thrust plate, locking pin and 2" NPT fitting are made of PP and theO‐ ring is made of
Viton (a fluorocarbon). The wire gasket is made of Neoprene, the seal plug is made of Santoprene and
both have a silicon gel for lubrication. Make sure that the application liquids are compatible with the
materials that will be wetted. To determine the chemical compatibility between the components and its
application liquids, referto the CompassCorrosion Guide, available fromCompass Publications.
Temperature and Pressure: Level Track Kit is designed for use in application temperatures up to 80° C
(176° F). It is not designed for pressurized applications dueto the wiring that must travel througha gasket
at the head.
Wiring and Electrical: Electrical wiring of any liquid level control system should be performed in
accordance with all applicable national, state, and local codes. Take care not to cut or break the outer
insulation jacket of wiring that may be immersed while routing cables in the Level Track Kit system. Such
breaks of the liquid seal of the sensor system may leadtocomponent failure.
Flammable or Explosive Applications: Level Track Kit may be used within flammable or explosive
applications only if the associated components are rated intrinsically safe for such use. In hazardous
applications, useredundant measurement and control points, each havinga different sensing technology.
Make a Fail ‐ Safe System: Design a fail‐ safe system that accommodates the possibility of sensor or power
failure. In critical applications, Omega Engineering recommends the use of redundant backup systems and
alarms in additionto the primary system.
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ASSEMBLY OF LEVEL TRACK KIT Step Four
Level Track Kit Assembly Drawing (side view)
Components:One Level Track Kit (LVM‐ 11/‐ 12/‐ 13/‐ 14/‐ 15) includes the followingparts:
1 Seal Plug 1 Top Compression Fitting
1 Wire Gasket 1 Thrust Plate
1 Locking Pin 1 2” NPT Fitting
1 Track 1 End Cap
2 Wire Retainer Clips (not shown)
Owner’s Manual
Level Track Kit Assembly Drawing
(Top View)
Seal Plug Assembly Drawing
(Side View)
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ASSEMBLY OF SWITCH CAR Step Five
Sensor car and bayonet adapter:The sensor car kit is the heart of the Level Track Mounting Kit system. It
slides in the grooves of the track, and is lockedinto position bya plastic bolt and screw. The bayonetto 3/4"
NPT adapter has a female 3/4" NPT fitting on one end where the sensor (not included) will screw in, and a
bayonet fitting on the other end that attaches it onto the sensor car with a slight turn, with an O‐ ring in‐
betweento provide tension for the push‐ and‐ turn connection.
Sensor Car Kit
Assembly Drawing
(Side View):
Sensor Car Kit
to Level Track Kit
(Top View)
Sensor Car Kit
to Level Track Kit
(Side View)
Components: One Sensor Car kit (LVM ‐ 20) includes the following parts:
1 Locking Bolt 1 Locking Nut
1 Sensor Car 1 O‐ ring
1 Bayonet to ¾” NPT Adapter
Owner’s Manual
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INSTALLATION Step Six
1. Attach the sensor(s) to the sensor car(s):
a. Thread the sensor wire through the bayonetto the ¾” NPT adapter, making the approach from
thethreaded side.
b. Screw the bayonet adapter onto the sensor until the cap of the sensor seats against the pit
inside the adapter.
c. Thread the blackO‐ ring onto the sensor wire and push itinto the bayonet side of the bayonet
adapter, seating it firmlyinto the adapter.
d. Thread the sensor wire into the sensor car and out through the hole between the sensor car
shoe and
Note:The sensor wire insulation is made from polypropylene or perfluoroalkoxy to ensure chemical
compatibility. This makes it stiffer thanconventional wire. Take care notto bend the wire too sharply to
the point where the insulation is broken. Such a break could cause liquid to enter the wiring, damaging
the sensor.
e. Pull the sensor wire through the hole while pushing the sensor and bayonettowards the sensor
caruntil the bayonet is in position. Align the slots on the bayonet with the pine on the sensor
car, and firmly push together. When the pin is in the correct position, turn the bayonetuntil it
is in the locked position.
2. Slide the first sensor car into the track:
a. Place the sensor car locking bolt (with the square tapered head) through the hole on the flat
side of the sensor car, and place the slot‐ head nut through the other side. Screw them together
severalturns, but do not tighten them all the way yet.
b. One end of the track hasa hole drilled horizontally through it. This is the top of the track. You
will wantto insert the sensor car on the bottom end of the track (opposite the hole). Slide the
bolt of the sensor car into the track (make sure the bolt head is turned so that the beveled
edges are aligned with the beveled edges of the track, see illustration on previous page). Then
slide the shoe (the lower end closestto the sensor) of the sensor carinto the track.
c. Slide the sensor to the desired position/depth. Tighten the sensor car lock screw with a
screwdriver. To not over tighten. Route the wire inside the track. Slide the wire clipsinto the
trackto hold the wire in the track. Do not cut the wireto length yet.
Procedure for two or more sensors:If more than one sensor will be installed on the track, repeat the
procedures above for each sensor. However, do not mount the sensors too closely together because
two sensors on different side of the track cannot fit througha 2” NPT fitting at the top of the tank. If
adjacent mounting is necessary you may need to install the other sensor in temporary staggered
positions, sliding theminto the correct position after the Level Track Kit system has been mounted in
the tank.
3. Connect the track to the top fitting:
a. Thread the sensor wire(s) through the bottom of the 2” NPT to the Level Track Kit system
fitting. The bottom of the fitting is the side with the smaller threads (2” NPT); it
nearest the sensors.
b. Before actually sliding the fitting onto the track, note the position of the horizontal hole
through the track, orient thefitting so that the slot in the top of thefitting will be aligned with
the hole. Slide the fitting onto the track,a few inches down from the top.
c. Insert the locking pininto the hole in the track.
the locking bolt.
should be
i. If there are wires in either or both of the two tracks the locking pin passes through,
make sure the wires are pinnedinto the inside slot by the locking pin (see illustration).
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INSTALLATION(continued) Step Six
ii. Hint: Start by inserting the locking pininto the top of the track vertically, parallel with
the wire, then when its end nears the alignment hole, push the pin in, prying the wire
into the edge of the slot as you do.
d. Pull thefitting upto the top of the trackuntil the locking pin is seated firmly in the slot and the
top of the track is flush with thefitting.
e. Thread the wires through the holes in the thrust plate. Push the thrust plate downuntil it seats
into the top of the 2” NPT fitting.
f. Thread the wires through the slots in the wire gasket. Push the gasket downuntil it seatsinto
the top of the thrust plate.
g. Thread the wires through the ¾” NPT opening of the top compressionfitting, with the approach
made from the large threaded side.
h. Screwthe top compressionfitting onto the 2” Level Track Kit system fittinguntil hand‐ tight.
i. Thread the wires through the slots in the seal plug. Push the seal plug downinto the top of the
¾” NPT opening on the top compressionfittinguntil it seats with the top of the opening.
4. Attach the termination hardware: At this point, an enclosure housing (LVCN‐ 11 or LVCN‐ 12 series) or
Compact Relay Controller (LVCN‐ 20, LVCN‐ 100 or LVCN‐ 110 series) may be screwed onto the top of the
assembly, and wiring attachments made following the instructions in its manual. Assuming that each
sensor is already mounted in position, cut the sensor wires to the length approximately 1‐ 1/2” above
the top of the housing. However, be sureto make allowances when cutting the sensor leads for future
adjustmentsto thesensor position.
Note: Always tighten the controller from
the wrench flat located on the swivel
base. Never tighten from the body of the
controller.
Determine the Proper Wire Length: Don’t make the mistake of trimming the sensor wires too short before
the process is tested. If the sensors might needto be lowered in the future, leave sufficient slack in the wires
to allow for future adjust
elsewhere above the compressionfitting.
ment. This extra wire may be stored in the bottom of the terminal strip housing, or
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INSTALLATION(continued) Step Six
Selectinga Location:The Level Track Kit should be mounted vertically ata point in the tank where it will not
be exposed to excessive stress (such as radial mixing velocities in excess of 1.5 feet per second). When
mounting in a tank with a mixer, mount the LVM‐ 11/‐ 12/‐ 13/‐ 14/‐ 15 series close to the tank wall were
velocities are lowest. Choose a mounting location where the sensors will function correctly (away from inlet
pipes that may spray on the sensors causing false readings) and where the sensor technologies function best.
It is the user’s responsibility to identify the proper placement and method of installation for the specific
application.
Tank Top Mounting:
1. Installa standard 2” NPT tank adapter through the top of the tank at the
desired location. If the tank top is not flat, usea 2” NPT self‐ aligning tank
adapter. Make surethe threads of the adapter are not damaged or worn.
If damaged, usea new adapter.
2. Insert the assembled Level Track Kit system through the tank adapter. If
several sensors are too close together to fit through the tank adapter,
slide them to a different locations so that only one sensor is going
through the adapter ata time.
3. To ensure a proper seal, apply an appropriate sealant to the threads of
the Level Track Kit system. Screw the LVM‐ 11/‐ 12/‐ 13/‐ 14/‐ 15 series
assembly into the tank adapter.
4. Make adjustments as requiredto the sensor position.
5. Connect the external wiring and conduit to the terminal strip or
controller, following theinstructions in that manual.
Side Mount Bracket Mounting:
1. Install the side mount bracket (LVM‐ 30 series) at the desired location.
Make sure the threads of the bracket are not damaged or worn. If
damaged, usea new bracket.
2. Insert the assembled Level Track Kit system into the bracket. If several
sensors are too close together to fit through the bracket, slide themtoa
different locations so that only one sensor is going through the bracket at
a time.
3. Screwthe LVM‐ 11/‐ 12/‐ 13/‐ 14/‐ 15 series assemblyinto the bracket.
4. Make adjustments as requiredto the sensor position, and to the bracket
tilting arm.
5. Connect the external wiring
controller, following theinstructions in that manual.
and conduit to the terminal strip or
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