Controllers and Transmitters2500-249 Level-Trol Series

2500-249 Series Level-TrolPneumatic Liquid LevelControllers and Transmitters

W3121-3/ILW3120-2/IL

Proportional, Proportional-plus-Reset, Differential Gap (On/Off)Control Mode or Transmitter Operation

Simple Dial Controls for Set Point, Proportional Band, Reset,Zero, and Span Adjustments The Displacer Sensor Measures Changes in Liquid Level, SpecificGravity, or Interface Level, and the Controller or Transmitter Sends aPneumatic Signal that is Proportional to the Changes The 249 Series Displacer is Contained in a Rugged Cage forMounting on the Side of a Tank, or the Displacer can be Suspendedin a Tank without a Cage Tank Flanged Connections to 8-Inch Size

General Specifications 9-16. . . Performance 9-17. . . . . . . . . . . Supply Pressure 9-17. . . . . . . . Temperatures 9-17. . . . . . . . . .

Materials 9-18. . . . . . . . . . . . . . Sensor Sizes, Connections, and

Ratings 9-19. . . . . . . . . . . . .

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Controllers and Transmitters

9-16

2500-249 Level-Trol SeriesGeneral Specifications

Proportional pneumatic controller Proportional band adjustable for full output pressure change over 10 to100% of displacer length: Type 2500Proportional-plus-reset pneumatic controller Proportional band adjustable for full output change over 20 to 200% ofdisplacer length: Type 2502

Controller andTransmitter Selections

Proportional-plus reset pneumatic controller withanti-reset windup

Proportional band adjustable for full output change over 20 to 200% ofdisplacer length: Type 2502F

Transmitter Selections(Also Refer to SensorTables)

Proportional pneumatic transmitter Span adjustable for full output change over 20 to 100% of displacerlength: Type 2500TTables)Differential gap (on-off) pneumatic controller withfull adjustment

Differential gap adjustable for full output change over 0 to 100% ofdisplacer length: Type 2500S

Differential gap (on-off) pneumatic controller withlimited adjustment

Differential gap adjustable for full output change over 25 to 40% ofdisplacer length (adjustment will vary based on displacer length,specific gravity and supply pressure): Type 2503

Fluid level or fluid interface levelFrom 0 to 100 percent of displacer lengthstandard lengths for allsensors are 356 mm (14 inches) or 813 mm (32 inches); other lengthsavailable depending on sensor construction

Process Sensor Range(Input Signal)

Fluid density

From 0 to 100 percent of displacement force change obtained withgiven displacer volumestandard volumes are 980 cm3 (60 inches3)for Types 249C and 249CP sensors or 1640 cm3 (100 inches3) formost other sensors; other volumes available depending upon sensorconstruction

Allowable SpecificFluid level or fluid interface level Type 2503 and 2503R: Specific gravity range, 0.25 to 1.10All other types: Specific gravity range, 0.20 to 1.10Allowable Specific

Gravity (Standard) Fluid density Type 2503 and 2503R: Minimum change in specific gravity, 0.25All other types: Minimum change in specific gravity, 0.20

Set Point Adjustment (Controllers only)Continuously adjustable to position control point or differential gap ofless than 100 percent anywhere within displacer length (fluid orinterface level) or displacement force change (density)

Zero Adjustment (Transmitters only)Continuously adjustable to position span of less than 100 percentanywhere within displacer length (fluid or interface level) ordisplacement force change (density)

Reset Adjustment (Proportional-Plus-Reset Controllers Only) Continuously adjustable from 0.005 to over 0.9 minutes per repeat(from 200 to under 1.1 repeats per minute)Anti-Reset Differential Relief (Type 2502F and 2502FR Controllers Only) Continuously adjustable from 0.14 to 0.48 bar or 2 to 7 psi differential to

relieve excessive difference between proportional and reset pressuresOutput Signal--Direct(Increasing Level

Proportional or reset controllers and transmitters 0.2 to 1.0 or 0.4 to 2.0 bar 3 to 15 or 6 to 30 psig(Increasing LevelIncreases Output) or Differential gap controllers with full adjustment 0 and 1.4 or 0 and 2.0 bar 0 and 15 or 0 and 30 psigIncreases Output) orReverse Action Differential gap controllers with limited adjustment 0 and full supply pressure

Stainless steel heat insulator assembly;Stainless steel heat insulator assemblyTemperature-compensated displacer;

OptionsTem erature com ensated dis lacerJerguson gauges;Options Jerguson gaugesPiezometer ring construction; andPiezometer ring construction andMechanical level indicator

W0656-1/IL

Typical Controller Cageless Sensor

W0660-1/IL

Caged SensorW2141-1/IL

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Controllers and Transmitters

9-17

2500-249 Level-Trol SeriesPerformance

Independent Linearity (Transmitters Only) 1 percent of output pressure change at span of 100 percentHysteresis 0.6 percent of output pressure change at 100 percent of proportional band, differential gap,

or spanRepeatability 0.2 percent of displacer length or displacement force change

Deadband (Except Differential Gap Controllers) 0.05 percent of proportional band or span

Typical Frequency Response4 Hz and 90-degree phase shift at 100 percent of proportional band, diferential gap, or span

with output pipe to typical instrument bellows using 6.1 meters or 20 feet of 6.3 mm or1/4-inch tubing

Supply PressureOUTPUT SIGNAL

NORMALOPERATING SUPPLY

PRESSUREMAXIMUM (TO PREVENT

DAMAGE TO PARTS)AIR CONSUMPTION AT NORMAL OPERATING SUPPLY

PRESSURE, Nm3/H

Bar Minimum Maximum0.2 to 1.0 or

0 and 1.4 for on-off 1.4 3.1 0.11 0.72

0.4 to 2.0 or0 and 2.4 for on-off 2.4 3.1 0.19 1.1

Psig SCFH3 to 15 or

0 and 20 for on-off 20 45 4.2 27

6 to 30 or0 and 35 for on-off 35 45 7 42

TemperaturesTemperat re Type or Material

Temperature CapabilityNotesTemperature Type or Material

C F Notes

Standard 2500 Series 40 to 71 40 to 160Ambient High-temperature 2500

Series 18 to 104 0 to 219 For process temperaturesCast iron sensor parts 29 to 232 20 to 450

For rocess tem eraturesbelow 29C or 20F and

Steel sensor parts 29 to 427 20 to 801below 29 C or 20 F andfor guidance on the need fora heat insulator contact yourStainless steel sensor parts 198 to 427 324 to 801 a heat insulator, contact yoursales office

Process N05500 torque tube 198 to 371 324 to 700sales office.If the ambient dew point is

Graphite/stainless steelgaskets 198 to 427 325 to 800

If the ambient dew oint ishigher than the processtemperature, ice might form

Monel/PTFE gaskets 73 to 204 100 to 400, g

and cause instrumentmalfunction and reduce

Combination of ambient andprocess

Some combinations of process and ambient temperatures within the above require anoptional heat insulator to protect the instrument from high or low temperatures. Forexample, an ambient temperature of 86F or 30C and a process temperature of 200C or392F require a heat insulator.

malfunction and reduceinsulator effectiveness.

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Controllers and Transmitters

9-18

2500-249 Level-Trol SeriesMaterials

Part Sensor Type Standard Material NotesSensor

249 Cast iron

Cage head and torque tube arm249CP CF8M (316 stainless steel)

Cage, head, and torque tube arm 249K, 249L, and 249N Steel249P and 249V Cast iron or steel

Torque tubeAll except 249CP N05500 (K-Monel)

For optional materials and for partsTorque tube 249CP S31600 (316 stainless steel) For optional materials and for partsnot shown, contact your sales office.All except 249CP and 249L S30400 (304 stainless steel)

not shown, contact your sales office.

Displacer 249CP S31600Dis lacer249L A91100F (solid aluminum)

Bolting All B7 steel studs or cap screwsand 2H steel nuts

Controller or Transmitter

Bourdon tube or bellowsBrass, plus stainless steel 3-way

valve for Type 2503 or 2503Rcontroller

Relay diaphragms Nitrile (standard) or polyacrylate(high-temperature)Relay O-ring Nitrile

Gasketing Neoprene (standard) or rubber(high-temperature) - - -

Seal ring O-rings (and reset relief valve O-rings if used) Nitrile (standard) or fluoroelastomer(high-temperature)Case Zinc

CoverAluminum (standard) or zinc, both

with glass gauge windows and nitrilecover gasket

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Controllers and Transmitters

9-19

2500-249 Level-Trol SeriesSensor Sizes, Connections, and Ratings

Rating Size Connection Type Sensor TypeNumberCaged Displacers

Class 125 or 250; cast iron1-1/2 or 2 inches Screwed or flanged

249Class 125 or 250; cast iron 2 inches Flanged 249

PN 10/16, 25/40, or 63/100; steel DN 40FlangedPN 10/16 or 25/40; steel DN 50 Flanged

249BFClass 600; steel1 1/2 or 2 inches

NPT or socket-welding ends 249BF

Class 150, 300, or 600; steel 1-1/2 or 2 inches Raised-face flanged or ring-type joint flangedClass 1500; steel 1-1/2 or 2 inches Raised-face flanged or ring-type joint flanged 249K

Class 2500; steel2 inches (if a top connection is

specified, it will be 1-inchflanged)

Ring-type joint flanged 249L

Class 900; steel 1-1/2 or 2 inches Raised-face flanged or ring-type joint flanged 249NTop-Mounted Cageless Sensors

Class 150, 300, or 600; 316 stainless steel 3 inches Raised-face flanged 249CPPN10/16, 25/40, or 63

(Ratings to PN 250 also available);steel or stainless steel

DN 100 Flanged

249PClass 900 or 1500; steel or stainless steel 4 inches Raised-face flanged or ring-type joint flanged 249PClass 150 through 2500; steel or stainless

steel 6 or 8 inches Raised-face flanged

Side-Mounted Cageless SensorsClass 125 or 250; cast iron 4 inches Flat-face flanged

Class 150; steel 4 inches Raised-face flanged or flat-face flangedClass 300 through 1500; steel 4 inches Raised-face flanged or ring-type joint flanged

249VClass 2500; steel 4 inches Ring-type joint flanged 249VClass 150;stainless steel 4 inches Raised-face flanged or flat-face flanged

Class 300, 600, or 900; stainless steel 4 inches Raised-face flanged or ring-type joint flanged

Displacer Lengths and VolumesSensor Type

Number Displacer Length Displacer Volume

Caged Displacers mm Inches cm3 Inches3249 356 or 813 14 or 32

249BF249K249L249N 356, 813, 1219, 1524, 14 32 48 60 72 84 96

Type 249 CP: 983 Type 249 CP: 60Top-Mounted Cageless Sensors

356, 813, 1219, 1524,1829, 2134, 2438, 2743, 14, 32, 48, 60, 72, 84, 96,108 120

Ty e 249 CP: 983All others: 1639

Ty e 249 CP: 60All others: 100

249CP1829, 2134, 2438, 2743,

3048 108, 120

249PSide-Mounted Cageless Sensors

249V

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Controllers and Transmitters

9-20

2500-249 Level-Trol SeriesConnection Styles and Positions

A6423/IL A6924/IL

BOTTOMCONNECTION

TOP CON-NECTION

UPPER SIDE CONNECTION

LOWER SIDE CONNECTION

APPROXIMATEDISPLACERLENGTH

ALTERNATE POSITIONS FORLEFTOR RIGHTHANDMOUNTING

LEFTHAND MOUNTING(INSTRUMENT ON LEFTOF SENSOR WHENVIEWED AS SHOWN)

TANK

LEFT

Connection Types: T = ThreadedF = Flanged

ConnectionStyle 1 Style 2 Style 3 Style 4

ConnectionLocations: Top and bottom Top and lower side Upper size and lower side

Upper side andbottom

Example: F-1 means flanged connections at the top and bottom of the cage.

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