Emerson Fisher 249VS User manual

www.Fisher.com
D103288X012
Cageless 249VS Displacer Sensor
Contents
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1. . . . . . . . . . . . . . . . . . . . . . . . .
Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Educational Services 2. . . . . . . . . . . . . . . . . . . . . .
Installation 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting the Sensor on the Process Vessel 6.
Maintenance 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Displacer and Stem 7. . . . . . . . . .
Replacing the Displacer, Cotter Spring,
Stem End Piece, and Displacer Spud 8. . . . .
Replacing the Displacer Rod/Driver Assembly 8
Replacing the Torque Tube 9. . . . . . . . . . . . . . . .
Replacing the Torque Tube Arm and
Changing the Mounting Position 10. . . . . . . . .
Simulation of Process Conditions for
Calibration of Level-TrolRControllers
and Transmitters 11. . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering 11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor Common Parts 11. . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual includes maintenance and
parts ordering information for the cageless 249VS
sensor.
Although a 249VS sensor is usually shipped with an
attached controller or transmitter, this manual does
not include operation, installation, calibration,
maintenance, or parts ordering information for the
controller/transmitter or for the complete unit. For
this information, refer to the appropriate controller/
transmitter instruction manual.
Do not install, operate, or maintain a 249VS sensor
without first Dbeing fully trained and qualified in
valve, actuator and accessory installation, operation
and maintenance, and Dcarefully reading and
understanding the contents of this manual. If you
have any questions about these instructions, contact
your Emerson Process Managementtsales office.
W9355
Figure 1. Type 249VS Sensor with DLC3000 Series
Digital Level Controller
Description
The 249VS sensor is designed to measure liquid
level, interface level, or density/specific gravity inside
a process vessel.
A torque tube assembly (figure 2) and displacer
provide an indication of liquid level, interface level, or
density/specific gravity. The torque tube assembly
consists of a hollow torque tube with a shaft welded
inside it at one end and protruding from it at the
other end.
The unconnected end of the tube is sealed by a
gasket and clamped rigidly to the torque tube arm,
permitting the protruding end of the shaft to twist and
therefore transmit rotary motion. This allows the
interior of the torque tube to remain at atmospheric
pressure, thus eliminating packing and the
disadvantages of packing friction.
The displacer always exerts a downward force on
one end of the displacer rod. The other end of the
displacer rod rests on the knife-edge of the driver
bearing. A keyed shaft on the bearing end of the
displacer rod fits into a socket on the outside of the
welded end of the torque tube assembly.
Instruction Manual
Form 5831
November 2007 Cageless 249VS Sensor

Cageless 249VS Sensor Instruction Manual
Form 5831
November 2007
2
KNIFE
EDGE
BEARING
TRAVEL STOP
ASSEMBLY
DISPLACER ROD
DISPLACER
TORQUE TUBE
W1800-1*/IL
W9353
Figure 2. Side-Mounted Cageless Wafer-Style Sensor
Assembly
A change in liquid level, interface level, or
density/specific gravity buoys up the displacer by a
force equal to the weight of the liquid displaced.
Corresponding vertical movement of the displacer
results in angular movement of the displacer rod
around the knife edge. Since the torque tube
assembly is a torsional spring which supports the
displacer and determines the amount of movement
of the displacer rod for a given displacement
change, it will twist a specific amount for each
increment of buoyancy change. This rotation is
brought through the torque tube arm by the
protruding rotary shaft. A controller or transmitter
attached to the end of the rotary shaft converts the
rotary motion into varying pneumatic or electric
signals. Figure 3 shows how the controller or
transmitter mounts on the torque tube arm.
The 249VS wafer style sensor mates with cast iron
CL125 flat face and CL250 raised face flanges, and
CL150, 300, 600, 900, and 1500 raised face steel
flanges. Type 249VS is also available with butt weld
end process connections.
Unless otherwise noted, all NACE references are to
NACE MR0175-2002.
Table 1. Displacer and Torque Tube Materials
Part Standard Material Other Materials
Displacer 304 Stainless Steel
316 Stainless Steel,
N10276, N04400,
Plastic, and Special
Alloys
Displacer Stem,
Driver Bearing,
Displacer Rod and
Driver
316 Stainless Steel
N10276, N04400,
other Austenitic
Stainless Steels, and
Special Alloys
Torque Tube N05500(1) 316 Stainless Steel,
N06600, N10276
1. N05500 is not recommended for spring applications above 232_C (450_F).
Contact your Emerson Process Management sales office or application engineer if
temperatures exceeding this limit are required.
The Parts List section shows some Type 249VS
standard displacer lengths and materials. Table 1
contains displacer and torque tube materials.
However, 249VS parts are available in a wide variety
of materials of construction, part dimensions, and
other specifications. Contact your Emerson Process
Management sales office for assistance in selection
of specific materials, dimensions, and specifications.
Educational Services
For information on available courses for 249VS
sensors, as well as a variety of other products,
contact:
Emerson Process Management
Educational Services, Registration
P.O. Box 190; 301 S. 1st Ave.
Marshalltown, IA 50158−2823
Phone: 800−338−8158 or
Phone: 641−754−3771
FAX: 641−754−3431
e-mail: [email protected]
Note
Neither Emerson, Emerson Process
Management, nor any of their affiliated
entities assumes responsibility for the
selection, use, and maintenance of any
product. Responsibility for the
selection, use, and maintenance of any
product remains with the purchaser
and end-user.

Cageless 249VS Sensor
Instruction Manual
Form 5831
November 2007
3
W8150 / IL
CONTROLLER OR TRANSMITTER
(TYPE DLC3010 SHOWN) RETAINING
FLANGE
POSITIONING
PLATE GASKET TORQUE TUBE
ARM
ROTARY SHAFT
OUTER
TUBE
END
MOUNTING HOLES ACCEPT
FOUR STUDS OR CAP
SCREWS DEPENDING ON
CONTROLLER OR TRANSMITTER
HEX NUTS OR CAP SCREWS
DEPENDING ON CONTROLLER
OR TRANSMITTER
Figure 3. Torque Tube Arm Exploded View Showing Controller or Transmitter Mounting
Installation
WARNING
To avoid personal injury or property
damage resulting from the sudden
release of pressure:
DAlways wear protective clothing,
gloves, and eyewear when performing
any installation operations.
DCheck with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.
DIf installing into an existing
application, also refer to the WARNING
at the beginning of the Maintenance
section of this instruction manual.
Type 249VS is installed directly on the vessel as
shown in figure 4. The sensor mounts on the side of
the vessel using an NPS 4 flat face or raised face
flange.
Because the displacer hangs inside the vessel,
provide a stillwell around the displacer if the fluid is
in a state of constant agitation to avoid excessive
249VS
NPS 4 RF FLANGE
DISPLACER
STILLWELL
1
1
NOTE:
STILLWELL REQUIRED AROUND DISPLACER IF THE FLUID
IS IN A STATE OF CONTINUOUS AGITATION
W9356
Figure 4. 249VS Sensor Top Mounted on Vessel
turbulence around the displacer. For interface or
fluid level applications, install a gauge glass on the
vessel.
Figure 5 provides overall envelope dimensions for
the 249VS sensor and DLC3000 Series controller
and figure 6 provides overall envelope dimensions
for the 249VS sensor and 2500 Series controller or
transmitter.

Cageless 249VS Sensor Instruction Manual
Form 5831
November 2007
4
LEFT-HAND MOUNT RIGHT-HAND MOUNT
NOTES:
1 DIMENSION G IS CUSTOMER SPECIFIED.
2. DISPLACER LENGTH ILLUSTRATED IS 14 INCHES
712.5
(28.05)
HEAT INSULATOR EXTENSION
mm
(INCH)
1
343.6
(13.53)
343.6
(13.53)
76.2
(3.00)
76.2
(3.00)
139.7
(5.50)
139.7
(5.50)
606.1
(23.86)
606.1
(23.86)
77.7
(3.06)
355.3
(14.00)
77.7
(3.06)
76.2
(3.00)
76.2
(3.00)
355.3
(14.00)
85.1
(3.35)
85.1
(3.35)
59.5
(2.34) 139.4
(5.49) 59.5
(2.34) 139.4
(5.49)
171.5
(6.75)
66
(2.60) 59.5
(2.34)
171.5
(6.75)
66
(2.60)
59.5
(2.34)
1/2-14 NPT
2 PLACES
GE33695
G
G1
Figure 5. Type 249VS with DLC3000 Series Controller Envelope Dimensions

Cageless 249VS Sensor
Instruction Manual
Form 5831
November 2007
5
NOTES:
1 DIMENSION G IS CUSTOMER SPECIFIED.
2. DISPLACER LENGTH ILLUSTRATED IS 14 INCHES
mm
(INCH)
1
343.6
(13.53) 343.6
(13.53)
76.2
(3.00)
76.2
(3.00)
139.7
(5.50)
139.7
(5.50)
521.5
(20.53)
77.7
(3.06)
355.3
(14.00)
77.7
(3.06)
76.2
(3.00)
76.2
(3.00)
355.3
(14.00)
458.7
(18.06)
238.9
(9.41)
231.9
(9.13)
GE33808
G
G1
238.9
(9.41)
231.9
(9.13)
467.5
(18.40)
521.5
(20.53)
171.5
(6.75)
171.5
(6.75)
85.1
(3.35)
85.1
(3.35)
LEFT-HAND MOUNT RIGHT-HAND MOUNT
Figure 6. Type 249VS with 2500 Transmitter Envelope Dimensions

Cageless 249VS Sensor Instruction Manual
Form 5831
November 2007
6
Mounting the Sensor on the Process
Vessel
CAUTION
If inserting the displacer into the
vessel before attaching it to the
displacer rod, provide a means of
supporting the displacer to prevent it
from dropping into the vessel and
being damaged.
Install the sensor wafer body on the vessel using the
following procedure.
Attach the displacer to the displacer rod (see
figure 7) before installing the sensor on the vessel.
1. Place a connecting flange gasket on the sensor
assembly.
2. Install four line flange studs and nuts in the
connecting flange at locations that correspond to the
sensor mounting lug locations.
3. Insert the displacer and the 249VS sensor into
the process connection/vessel.
4. Place a blind flange on the back of the sensor
and lightly secure (tightening nuts enough to hold
wafer body and gasket in place) using four line
flange bolt nuts, centering the connecting flange
gasket and sensor on the vessel connecting flange.
5. Install the remaining line flange bolts and nuts.
6. Tighten all nuts in a crisscross fashion.
Maintenance
Sensor parts are subject to normal wear and must
be inspected regularly and replaced as necessary.
The frequency of inspection and replacement
depends upon the severity of service conditions.
WARNING
Always wear protective clothing,
gloves, and eyewear when performing
any maintenance operations to avoid
personal injury.
Avoid personal injury or property
damage resulting from the sudden
release of pressure. Before performing
any maintenance procedure:
LOCKING NUTS
DISPLACER SPUD
DISPLACER
STEM
EXTENSION
DISPLACER ROD
COTTER SPRING
W9357
Figure 7. Displacer and Displacer Rod Connections
DRelieve any process pressure in
the process vessel where the Type
249VS sensor is installed.
DDrain the process liquid from the
process vessel.
DShut off any electrical or
pneumatic input to the controller or
transmitter attached to the Type 249VS
sensor and vent any pneumatic supply
pressure.
DUse caution when loosening
flange bolting.
DRemove the controller or
transmitter from the torque tube arm
(key 1).
Before performing any maintenance
procedure requiring the handling of
the displacer, inspect the displacer
(key 9) to make sure process pressure
or liquids have not penetrated the
displacer.
The displacer in this unit is a sealed
container. If penetrated by process
pressure or liquid, the displacer may
hold pressure or hazardous liquid for
an extended period. A displacer that
has been penetrated by process
pressure or liquid may contain:
Dpressure as a result of being in a
pressurized vessel.
Dliquid that becomes pressurized
due to a change in temperature.

Cageless 249VS Sensor
Instruction Manual
Form 5831
November 2007
7
Dliquid that is flammable,
hazardous, or corrosive.
Sudden release of pressure, contact
with hazardous liquid, fire, or
explosion, which might result in
personal injury or property damage,
can occur if a displacer that is
retaining pressure or process liquid is
punctured, subjected to heat, or
repaired.
Handle the displacer with care.
Damage to the displacer will decrease
its ability to withstand process
pressure.
Check with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.
Note
Except for gaskets (key 7), trouble
symptoms peculiar to specific parts
are discussed in the following
sections. Each section is specific to
these parts. Gasket failure is indicated
by leakage in the gasket area. Every
time a gasket is removed, replace it
with a new one upon reassembly.
Removing the Displacer and Stem
WARNING
Refer to the Maintenance WARNING at
the beginning of this section.
The displacer (key 9) is a sealed container. If the
displacer has been penetrated by process pressure
or liquid, it may hold pressure or hazardous liquid for
an extended period.
Process residue buildup on the displacer and stem
(key 19) may change displacer weight or
displacement. A bent stem or a dented or corroded
displacer can impair performance.
If the displacer rests against the travel stop, appears
to be overweight, or causes output drift or other
output inaccuracies, it may have been penetrated by
process pressure or liquid. Such a displacer may
contain pressure because it was in a pressurized
vessel, may contain process liquid that becomes
pressurized due to a change in temperature, and
may contain process liquid that is flammable,
hazardous, or corrosive.
WARNING
Sudden release of pressure, contact
with hazardous liquid, fire, or
explosion, which may result in
personal injury or property damage,
can occur if a displacer that is
retaining pressure or process liquid is
punctured, subjected to heat, or
repaired.
Handle the displacer with care.
Note
On a Type 249VS with travel stop, the
displacer must come out with the
torque tube arm (key 1) before being
completely disconnected from the
displacer rod assembly (key 14). If
separating the displacer and displacer
rod, remove the cotter spring (key 8).
CAUTION
Be careful not to let the displacer slip
and drop into the bottom of the
process vessel, as displacer damage
could result.
CAUTION
When removing a sensor assembly
from a process vessel, the displacer
may remain attached to the displacer
rod and removed with the sensor
assembly.
If the displacer is removed with the
sensor assembly, be careful not to
damage the displacer or bend the
displacer stem when setting the
sensor assembly down.

Cageless 249VS Sensor Instruction Manual
Form 5831
November 2007
8
BJ8646-A/DOC
Figure 8. Type 249VS Travel Stop Plate Positions
If separating the displacer and
displacer stem during the removal of
the sensor assembly from the process
vessel, remove the cotter spring (key
8) and separate the displacer/displacer
stem from the sensor assembly.
Be careful not to let the displacer slip
and drop into the bottom of the
process vessel, as displacer damage
could result.
1. Carefully remove the torque tube arm.
2. On the Type 249VS, the travel stop plate can be
located in one of four positions, as shown in figure 8.
With a standard or thin-walled torque tube and with
the displacer hanging free on the displacer rod, the
rod should not touch the plate. If it does, remove the
plate and choose a position where the rod will not
touch the plate.
3. Follow the procedure for replacing the displacer,
displacer rod assembly, cotter spring, stem end
piece, and displacer spud as necessary.
Replacing the Displacer, Cotter Spring,
Stem End Piece, and Displacer Spud
The cotter spring (key 8), the ball on the displacer
rod/driver assembly (key 14), and the stem end
piece or displacer stem connector (key 18) may be
either too worn for a secure connection or so
clogged or corroded that the displacer does not pivot
properly. Replace these parts, as necessary.
CAUTION
If the displacer is to be disconnected
from the displacer rod/driver assembly
before being removed from the
process vessel, provide a suitable
means of supporting the displacer to
prevent it from dropping into the
process vessel and being damaged.
1. After following the proper procedure to remove
the torque tube arm assembly and the displacer from
the process vessel, move the sensor assembly to a
suitable maintenance area. Support the assembly to
avoid damage to the displacer, displacer stem,
displacer rod assembly, and associated parts.
2. Reach the cotter spring, displacer spud, ball end
of the displacer rod/driver assembly, stem end piece,
or displacer stem connector as follows:
Remove the process vessel bolting and pull out the
torque tube arm assembly (key 1). The inside of the
process vessel wall will cause the displacer to swing
up so it can be pulled out through the vessel
opening.
3. Remove the cotter spring to free the displacer or
stem end piece from the ball end of the displacer
rod/driver assembly. Lift the displacer or stem end
piece from the ball.
4. Replace worn or damaged parts as necessary.
Return the displacer or stem end piece to the
displacer rod/driver assembly. Install the cotter
spring.
5. Install the controller/transmitter. Calibrate the
controller/transmitter following the procedures given
in the controller/transmitter instruction manual.
Replacing the Displacer Rod/Driver
Assembly
The ball on the displacer rod/driver assembly (key
14) may be either too worn for a secure connection
or so corroded that the displacer does not pivot

Cageless 249VS Sensor
Instruction Manual
Form 5831
November 2007
9
properly. Replace the displacer rod/driver assembly,
if necessary.
CAUTION
If the displacer is to be disconnected
from the displacer rod before being
removed from the process vessel,
provide a suitable means of
supporting the displacer to prevent it
from dropping into the process vessel
and being damaged.
1. After following the proper procedure to remove
the torque tube arm assembly and the displacer from
the process vessel, move the sensor assembly to a
suitable maintenance area. Support the assembly to
avoid damage to the displacer, displacer stem,
displacer rod assembly, and associated parts.
2. Remove the controller/transmitter and displacer
(key 9).
3. Using the proper tool, loosen and then remove
the upper driver bearing bolt (key 4). Lift the
displacer rod/driver assembly from the knife edge of
the driver bearing (key 3). Separate the displacer
rod/driver assembly from the end of the torque tube
assembly (key 10).
4. If necessary, remove the driver bearing by
removing the lower bearing driver bolt. Install a new
driver bearing and bolts.
5. If necessary, replace the displacer rod/driver
assembly and install it on the knife edge of the driver
bearing. Carefully fit the keyed shaft on the bearing
end of the displacer rod into a socket on the outside
of the welded end of the torque tube assembly.
6. Install the controller/transmitter. Calibrate the
controller/transmitter following the procedures given
in the controller/transmitter instruction manual.
Replacing the Torque Tube
Corrosion or leakage through the outer end of the
torque tube is evidence of deterioration in the torque
tube assembly (key 10) or torque tube end gasket
(key 17). Erratic or nonexistent rotary shaft output
may occur if the socket on the inner end of the
torque tube assembly does not engage the bearing
end of the displacer rod assembly (key 14).
CAUTION
Support the sensor assembly to avoid
damage to the displacer, displacer
stem, displacer rod assembly, and
associated parts.
1. After following the proper procedure to remove
the sensor assembly from the process vessel, move
the sensor assembly to a suitable maintenance area.
2. Remove the controller/transmitter and displacer
(key 9).
3. Remove the nuts (key 13) and retaining flange
(key 12) holding the positioning plate (key 21) at the
end of the torque tube arm.
CAUTION
If the displacer is still attached to the
displacer rod at this point, be careful
not to let the torque tube assembly
slip when using the screwdriver
leverage procedure in steps 4 and 6.
Sudden release of the displacer would
cause damage.
4. Remove the positioning plate (key 21) by freeing
its two lugs.
The vertical lug fits into a hole in the flange of the
torque tube arm (top of figure 9). The horizontal lug
(hidden behind the screwdriver at the bottom of
figure 9) fits into a slot in the outer tube end of the
torque tube assembly (the figure 9 exploded view
shows this lug to the right of the outer tube end).
The positioning plate may be pried away from the
torque tube arm and outer tube end if the displacer
already has been disconnected from the displacer
rod. However, if the displacer is still connected to the
displacer rod, place a screwdriver blade in the slots
of the positioning plate and outer tube end as shown
in figure 9. Slowly turn the positioning plate to
release its lug from the torque tube arm. Then,
carefully turn the plate back to allow the displacer to
come to rest and slip the other lug of the plate from
its slot in the outer tube end.
5. Pull the torque tube assembly and tube end
gasket out of the torque tube arm.

Cageless 249VS Sensor Instruction Manual
Form 5831
November 2007
10
W0145-1*/IL
DISPLACER ROD
ASSEMBLY
ROTARY SHAFT
TORQUE TUBE
OUTER TUBE END
POSITIONING PLATE
DRIER BEARING
EXPLODED VIEW OF TORQUE TUBE AND DISPLACER ROD ASSEMBLYREMOVAL OR INSTALLATION OF POSITIONING PLATE
W0654-2
Figure 9. Torque Tube and Displacer Rod Assemblies
6. Install a new tube end gasket and insert the
torque tube assembly into the torque tube arm as
shown in figure 9. Rotate the torque tube assembly
until its socket mates with the driver member on the
displacer rod assembly and so the outer tube flange
rests against the gasket. With a thumb on the upper
portion of the positioning plate and a screwdriver in
the slots as shown in figure 9, rotate the plate and
press the lug on the plate into the hole in the torque
tube arm.
7. Install the retaining flange and secure it with four
nuts (key 13), being sure to tighten all nuts evenly.
8. Install the sensor head and controller/transmitter.
Calibrate the controller/transmitter following the
procedures given in the controller/transmitter
instruction manual.
Replacing the Torque Tube Arm and
Changing the Mounting Position
Looseness of the driver bearing (key3), wear on its
knife-edged surface, or a bent, worn, or corroded
displacer rod assembly (key 14) may impair
performance. Be especially sure to check the ball on
the displacer rod.
CAUTION
Support the sensor assembly to avoid
damage to the displacer, displacer
stem, displacer rod assembly, and
associated parts.
1. After following the proper procedure to remove
the sensor assembly and the displacer from the
process vessel, move the sensor assembly to a
suitable maintenance area.
2. Remove the controller/transmitter and
displacer/displacer stem (key 9).
3. Follow the proper procedure to remove the torque
tube assembly (key 10).
4. Remove the bearing bolts (key 4), displacer rod
assembly, and driver bearing.
Note
Be sure to install the driver bearing so
its knife edge is pointing up when the
torque tube arm is mounted in the
desired orientation. Since changing
the mounting position of the torque
tube arm by 180_will change
controller or transmitter action from
direct to reverse or vice versa,
controller/transmitter action must be
reversed from what it was before the
mounting method was changed.
5. Install the bearing driver and the lower bearing
bolt into the torque tube arm. Place the rod/driver
assembly on the knife-edged surface of the driver
bearing. Install the bolt and tighten both the top and
the bottom bearing bolts.
6. Install a new tube end gasket (key 17) and torque
tube into the torque tube arm. Install the

Cageless 249VS Sensor
Instruction Manual
Form 5831
November 2007
11
controller/transmitter and attach the
displacer/displacer stem to the rod/driver assembly.
7. Install the sensor assembly to the process vessel
and calibrate the controller/transmitter following the
procedures given in the controller/transmitter
instruction manual.
8. Calibration of the controller/transmitter can be
done prior to installing of the sensor assembly to the
process vessel using the simulation of process
conditions method.
Simulation of Process Conditions
for Calibration of Level-TrolR
Controllers and Transmitters
Contact your Emerson Process Management sales
office for information on obtaining the Supplement to
249 Series Sensors Instruction Manual—Simulation
of Process Conditions for Calibration of Level-Trols -
Form 5767 (part number D103066X012), or visit our
website at www.Fisher.com.
Parts Ordering
When corresponding with your Emerson Process
Management sales office about this equipment,
always refer to the sensor serial number. Each
sensor is assigned a serial number which is stamped
on a nameplate (key 54, not shown) attached to the
torque tube arm. This same number also appears on
the controller/ transmitter nameplate when a
complete controller/ transmitter-sensor unit is
shipped from the factory. When ordering a
replacement part, be sure to include the
11-character part number from the following parts
list.
WARNING
Use only genuine FisherRreplacement
parts. Components that are not
supplied by Emerson Process
Management should not, under any
circumstances, be used in any Fisher
instrument. Use of components not
supplied by Emerson Process
Management will void your warranty,
might adversely affect the
performance of the instrument, and
could give rise to personal injury and
property damage.
Note
Neither Emerson, Emerson Process
Management, nor any of their affiliated
entities assumes responsibility for the
selection, use and maintenance of any
product. Responsibility for the
selection, use and maintenance of any
product remains with the purchaser
and end-user.
Parts Kits
Description Part Number
Sensor Part Kit
Kit contains keys 8, 10, 17
For Type 249VS R249VSX0012
Parts List
Key Description Part Number
Note
Part numbers are shown for recommended spares
only. For part numbers not shown, contact your
Emerson Process Management sales office.
Sensor Parts
1 Torque Tube Arm
CL125, C150 FF, CL150 through1500 RF
WCC
LCC
CF8M (316 SST)
CL2500, Butt Weld XXS
WCC
LCC
CF8M (316 SST)
3 Driver Bearing
Use with displacer stem and
standard displacer for vertical mounting
S31600 ASME SA-240 (NACE)
N04400
N10276
Use without displacer stem with
displacers for vertical / horizontal mounting
S31600 ASME SA-240 (NACE)

Cageless 249VS Sensor Instruction Manual
Form 5831
November 2007
12
GE18352 Rev A
Figure 10. Type 249VS Sensor Construction with Displacer
Key Description Part Number
4 Driver Bearing Bolt (2 req’d)
Use with displacer stem and
standard displacer for vertical mounting
316 SST, annealed (NACE)
N04400
N10276
Use without displacer stem with
displacers for vertical / horizontal mounting
316 SST, annealed (NACE)
5 Travel Stop Post (4 req’d)
410 / 416 SST, annealed
316 SST, annealed
6 Travel Stop
Carbon Steel
316 SST, annealed
7 Nut (4 req’d)
Carbon Steel
S31600
Key Description Part Number
8* Cotter Spring
N04400 1A517942022
N10276 1A517940152
9 Displacer
3 inch x 10 inches (1600 psi), S30400
(vertical or horizontal mounting)
3 inch x 10 inches (1600 psi), S31603 (NACE)
(vertical or horizontal mounting)
3 inch x 14 inches (1600 psi), S30400
3 inch x 14 inches (1600 psi), S31600
3 inch x 14 inches (1500 psi), S31603 (NACE)
2 inch x 32 inches (1500 psi), S30400
2 inch x 32 inches (1500 psi), S31600
2 inch x 32 inches (1500 psi), S31603 (NACE)
1.375 inch x 48 inches (1800 psi), S30400
1.5 inch x 60 inches (1800 psi), S30400
*Recommended spare parts

Cageless 249VS Sensor
Instruction Manual
Form 5831
November 2007
13
GE32002 Rev A
Figure 11. Type 249VS Sensor Construction without Displacer
Key Description Part Number
10* Torque Tube Assembly
Standard Wall
N05500 (NACE) 1K4499X0012
N10276 1K9159X0012
N06600 1K4519000A2
S31600 1K4507000A2
Thin Wall
N05500 (NACE) 1K4501X0012
N06600 1P747040042
S31600 1K450935072
11 Stud Bolt (4 req’d)
SA193 Grade B7 / NCF2
SA193 Grade B7M / NCF2
B8M Class 2
12 Retaining Flange, carbon steel
13 Hex Nut (4 req’d)
SA194-2H / NCF2 (NACE)
SA194-2HM / NCF2 (NACE)
SA194 Grade 8M
14 Rod & Driver ,w/vertical displacer
316 SST (NACE)
N04400
N10276
Spud & Driver, w/vertical displacer or no displacer,
316 SST (NACE)
Rod, w/vertical displacer
316 SST, annealed (NACE)
Rod & Driver
horizontal mounting
316 SST (NACE)
Key Description Part Number
15 Nameplate
16 Drive Screw (4 req’d), 18-8 SST
17* Tube End Gasket
N04400/PTFE 13B8741X012
Flexible Graphite 0Y0876X0052
18 Stem End Piece
use with displacer stem and
standard displacer for vertical mounting
316 SST, annealed (NACE )
N04400
N10276
Rod Connector
use without displacer stem with
standard displacers for vertical mounting
316 SST, annealed (NACE)
19 Displacer Stem
20 Hex Nut (2 req’d)
use with displacer stem and
standard displacer for vertical mounting
S31600 (NACE)
N04400
N10276
21 Positioning Plate, zn pl steel
22 Tag, NACE (not shown)
23 Seal Wire (not shown)

Cageless 249VS Sensor Instruction Manual
Form 5831
November 2007
14

Cageless 249VS Sensor
Instruction Manual
Form 5831
November 2007
15

Cageless 249VS Sensor Instruction Manual
Form 5831
November 2007
16
Emerson Process Management
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Sao Paulo 05424 Brazil
Singapore 128461
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