Emerson Fisher 249, Fisher 249P, Fisher 249VS, Fisher 249W, Fisher 2500 Data Sheet

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Level Instruments

D103219X012

Fisherr Level Instruments

X0682

FISHER 2100E

ELECTRIC LEVEL SWITCH

Product Bulletin

11.2:Level

February 2015

W8418‐1

FISHER L2 PNEUMATIC

LEVEL CONTROLLER

W8678

FIELDVUE DLC3010 DIGITAL LEVEL

CONTROLLER IN COMBINATION WITH

A FISHER 249W SENSOR

n FIELDVUE™ Digital Level Instruments—

Microprocessor‐based, communicating digital level transmitter for liquid level, specific gravity (density), and liquid level interface. Using HART F

OUNDATION™ fieldbus communications protocol,

the DLC3010/DLC3020f digital level controller gives easy access to information critical to process operation. Available in combination with a 249 sensor to meet mounting requirements.

n Fisher 2100E electric switch and 2100 on-off

pneumatic switch— Sense high or low liquid levels.

Typically, these switches electrically or pneumatically operate safety shutdown systems for field processing equipment in oil and gas industry applications

X0660

FISHER L2e ELECTRIC

LEVEL CONTROLLER

n Liquid Level Controllers— Displacer type sensors

used to detect liquid level or interface of two liquids of different specific gravities. The L2e electric level controller, in conjunction with the Fisher easy-Drive™ actuator, can provide a fully electric level control loop; the L2 pneumatic level controller offers snap-acting, throttling control, while the on-off/direct acting L2sj controller features a low-bleed relay to help to conserve natural gas to reduce emissions.

n Pneumatic Liquid Level Instruments— Proportional

control mode. The 2500 controller/transmitter receives the change in fluid level or fluid‐to‐fluid interface level from the change in buoyant force the fluid exerts on the sensor displacer. Available in combination with a 249 sensor to meet mounting requirements.

www.Fisher.com

Product Bulletin

11.2:Level February 2015

Level Instruments

D103219X012

FIELDVUE Digital Level Instruments

FIELDVUE DLC3010 digital level controllers (figures 1 and 3) are loop‐powered instruments. In conjunction with a 249 sensor, they measure changes in liquid level, the level of an interface between two liquids, or liquid specific gravity (density). The DLC3020f is a fieldbus‐powered instrument that measures liquid level or interface between two liquids. A level, density, or interface level change in the measured fluid causes a change in the displacer position.

This change is transferred to the torque tube assembly and to the digital level controller lever assembly. The rotary motion moves a magnet attached to the lever assembly, changing the magnetic field that is sensed by the Hall‐effect sensor. In the DLC3010, the sensor converts the magnetic field signal to a varying electronic signal, which is converted to a 4‐20 mA output signal. In the DLC3020f, the sensor converts the changing magnetic field to a digital signal, which is ambient temperature compensated, linearized, and sent to the electronics assembly.

Standard or Custom Configuration... the DLC3010 digital level controller in combination with a 249W sensor enables users to install digital level transmitters to a variety of industry standard or custom process vessel connections. The sensor consists of a wafer body, torque tube assembly and displacer and is rated for CL150, 300, and 600. The wafer body mounts between NPS 3 or 4 raised face flanges. Custom configurations are also available to meet your specific application requirements. Refer to the DLC3010/DLC3020f specifications in tables 1, 2, 3, and 9, and the 249 specifications in tables 4, 5, 6, 7, 8, and 9 for product line capabilities and options.

Figure 1. Fisher DLC3010 Digital Level Controller in Combination with a 249W Sensor —Installed in a Typical Customer‐Supplied Cage

475 FIELD COMMUNICATOR

W8678

Figure 2. AMS Suite: Intelligent Device Manager Configuration Screen

HART/AMS Compliant... The DLC3010 uses HART

protocol to interface with the Field Communicator (see figure 1) for field interface operations. Advanced user‐interface capabilities are enabled by AMS Suite: Intelligent Device Manager.

OUNDATION fieldbus/AMS Compliant... The DLC3020f

uses F

OUNDATION fieldbus protocol to interface with the

Field Communicator (see figure 1) for field interface operations. Advanced user‐interface capabilities are enabled by AMS Suite: Intelligent Device Manager (see figure 2).

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

Simplified Setup and Calibration... With the electronic Device Setup, digital level controller startup is straightforward and fast. Level and temperature alarms, specific gravity tables, calibration trim, and trending are readily configurable. DLC3010/DLC3020f digital level controllers also support re‐ranging without a fluid reference.

Responsive to Small Process Change... Accurate, high‐gain analog‐to‐digital conversion enables measurement of small changes in the process variable. In addition, an input filter and output damping may be adjusted by the user to attenuate noise from mechanical disturbance or liquid turbulence at the displacer.

Easy Maintenance... Field wiring connections are in a compartment separated from the electronics. This helps to protect the electronics from any moisture brought into the housing by the field wiring. This also eases installation and maintenance. The digital level controller does not have to be removed to facilitate troubleshooting or service. However, if it is necessary to remove the digital level controller for in‐shop maintenance and calibration, field wiring does not need to be disconnected.

Figure 3. FIELDVUE DLC3020f Digital Level Controller

W6102‐1

Note

Mountings for Masoneilan, Yamatake and Foxboro/Eckhardt sensors are available. Contact your Emerson Process Management sales office for mounting kit information.

Table 1. FIELDVUE DLC3010 General Specifications

Controller Selections

Input Signal

Output Signal

Supply 12‐30 VDC; the instrument has reverse‐polarity protection

Ambient Relative Humidity 0 to 95% non‐condensing

Approximate Weight (Controller) 2.7 kg (6 pounds)

Option Heat insulator

Electrical Housing NEMA 4X, CSA Enclosure, IP66

Hazardous Area Classification

1. Also refer to tables 4, 5, 6, and 7.

2. Other Certifications/Classifications available. Contact your Emerson Process Management Sales office for additional information.

For use with 249 caged and

(1)

uncaged displacer sensors

Level, Interface or Density: Rotary motion of the torque tube shaft proportional to changes in liquid lever, interface level, or density that change the buoyancy of the displacer. Process Temperature: Interface for 2‐ or 3‐wire 100 ohm platinum RTD for sensing process temperature, or optional user‐entered target temperature to permit compensating for changes in specific gravity

Analog 4‐20 mA DC direct (increasing input increases output) or reverse action Digital HART 1200 baud FSK (frequency shift keyed)

CSA—Intrinsically Safe, Explosion-proof, Division 2, Dust Ignition-proof

(2)

FM—Intrinsically Safe, Explosion-proof, Non-incendive, Dust Ignition-proof ATEX—Intrinsically Safe, Type n, Flameproof IECEx—Intrinsically Safe, Type n, Flameproof

DLC3010

Product Bulletin

11.2:Level February 2015

Table 2. FIELDVUE DLC3020f General Specifications

Controller Selections

Device Inputs

Digital Communication Protocol Foundation fieldbus registered device (ITK 5)

Supply 9 to 32 volts DC, 17.7 mA DC; instrument is not polarity sensitive

Ambient Relative Humidity 0 to 95% non‐condensing

Approximate Weight (Controller) 2.7 kg (6 pounds)

Option Heat insulator

Electrical Housing Type 4X, NEMA 4X, IP66

Hazardous Area Classification

1. Also refer to tables 4, 5, 6, and 7.

2. Other Certifications/Classifications available. Contact your Emerson Process Management Sales office for additional information.

For use with 249 caged and

(1)

uncaged displacer sensors

(2)

DLC3020f

Level Sensor Input: Rotary motion of the torque tube shaft proportional to buoyant force of the displacer caused by changes in liquid level or interface level. Process Temperature: Interface for 2‐ or 3‐wire 100 ohm platinum RTD for sensing process temperature; AO Block - Foundation fieldbus temperature transmitter; Manual - compensation values entered manually in the device

CSA—Intrinsically Safe, Explosion-proof, Division 2, Dust Ignition-proof FM—Intrinsically Safe, Explosion-proof, Non-incendive, Dust Ignition-proof ATEX—Intrinsically Safe, Type n, Flameproof IECEx—Intrinsically Safe, Type n, Flameproof

Level Instruments

D103219X012

Table 3. FIELDVUE DLC3010/DLC3020f Performance

Performance Criteria

Independent Linearity

DLC3010 DLC3020f

$0.25% of output span $0.1% of output span $0.8% of output span $0.5% of output span

(1)

Stand‐Alone

(2)

DLC3010 w/ NPS 3 249W,

Using a14‐inch Displacer

DLC3010 w/ All Other

249 Sensors

Hysteresis < 0.2% of output span < 0.50% of output span - - - - - -

Repeatability

$0.1% of full scale output

Dead Band < 0.05% of input span

< 0.10% of output span

$ 0.10% (RH9.2% to 90%)

$0.5% of output span $0.3% of output span

- - - - - -

Hysteresis and Dead Band - - - - - - < 1.0% of output span < 1.0% of output span

Accuracy - - -

Fluid Level or Fluid

Process Sensor Range (Input Signal)

Allowable Specific Gravity (Standard)

Interface Level

Fluid Density (DLC3010)

Fluid Level or Fluid Interface Level

Fluid Density (DLC3010)

Fluid Level or Fluid

Zero Adjustment

Interface Level

Fluid Density (DLC3010)

1. At full design span, reference conditions.

2. To lever assembly rotation inputs.

3. The torque tube and the displacer must be properly sized for the application in order for 0 to 100% of displacer length to be available.

4. With a nominal 4.4 degrees torque tube shaft rotation for a 0 to 100 percent change in liquid level (specific gravity=1), the digital level controller can be adjusted to provide full output for an input range of 5% of nominal input span. This equates to a minimum differential specific gravity of 0.05 with standard volume displacers. Operating at 5% proportional band will degrade accuracy by a factor of 20. Using a thin wall torque tube, or doubling the displacer volume will each roughly double the effective proportional band. When proportional band of the system drops below 50%, changing displacer or torque tube should be considered if high accuracy is a requirement.

From 0 to 100 percent of displacer length or 813 mm (32 inches); other lengths available depending on sensor construction

From 10 to 100 percent of displacement force change obtained with given displacer volume—standard volumes are 1016 cm

(62 in3) for 249C and 249CP sensors and 1622 or 1360 cm3 (99 or 83 in3) for most other sensors;

other volumes available depending upon sensor construction

Specific gravity range, 0.05 to 1.10; Minimum differential specific gravity 0.05

Specific gravity range, 0.1 to 1.10; Minimum change in specific gravity 0.05

Continuously adjustable to position span of less than 100 percent anywhere within displacer length, and report the value in engineering units with any desired bias.

Continuously adjustable to position span of less than 90 percent anywhere within 10 to 100 percent of displacement force change obtained with given displacer volume.

$0.15%

(3)

—standard lengths for all sensors are 356 mm (14 inches)

- - - - - -

(4)

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

Figure 4. Fisher 2100E Electric Liquid Level Switch

APPROXIMATE SWITCHING POINT

LOCATION OF OPTIONAL SIGHT WINDOW

X0682

Figure 5. Fisher 2100 Pneumatic Liquid Level Switch

W9954-1

Fisher 2100 Liquid Level Switches

Typically, 2100E and 2100 switches electrically or pneumatically operate safety shutdown systems for field processing equipment in oil and gas industry applications

Switch construction comes in a left‐hand as well as a right‐hand mounting version. The explosion‐proof, hermetically sealed 2100E switch is offered as both a factory mounting and as an electric switch retrofit to the proven 2100 switch.

With the 2100E switch rising liquid level exerts a buoyant force on the torque tube that either activates or deactivates an electrical SPDT or DPDT switch

depending on the switching action desired. Falling liquid level deactivates or activates the same switch depending on the action desired.

When the 2100 switch is in the normal position with the flapper against the nozzle, output pressure cannot bleed off and remains the same as full supply pressure. Rising liquid level exerts a buoyant force on the displacer, producing a torque on the torque tube. When the torque transmitted by the torque tube exceeds the torque exerted on the flapper by the magnet, the flapper snaps away from the nozzle, allowing output pressure to bleed through the nozzle faster than supply pressure can enter through the bleed orifice. The reduced pressure in the output signal line activates the shutdown or alarm system. When the liquid level lowers, the falling displacer forces the flapper into the field of the magnet, letting the magnet snap the flapper against the nozzle and causing output pressure to build to full supply pressure.

Product Bulletin

11.2:Level February 2015

Level Instruments

D103219X012

Fisher L2, L2e, and L2sj Liquid Level Controllers

Rugged L2, L2e, and L2sj liquid level controllers use a displacer type sensor to detect liquid level or the interface of two liquids of different specific gravities.

The reliability of the design make these controllers well suited for high pressure liquid level applications in natural gas production, compression, and processing industries.

The L2 and L2sj devices deliver a pneumatic output signal to a control valve.

The L2e device uses a single pole double throw (SPDT) dry contact electric switch to provide differential gap (DG) control or liquid monitoring. It can be used to provide an electric control signal to an electrically actuated control valve.

The sensor uses a threaded 2 NPT connection to the vessel. Standard constructions use materials that comply with the requirements of NACE MR0175‐2002.

L2, L2e, and L2sj controllers, in combination with the sensor, work on the principle that a body immersed in liquid will be buoyed up by a force equal to the weight of the liquid displaced. The buoyant force and resultant movement of the displacer in the liquid is transmitted to the controller which delivers the signal to a control valve.

Figure 6. Fisher L2 Liquid Level Controller

W8418‐1

L2e Electric Level Controllers

Effective Level Loop Tuning… Intuitive Zero and Span adjustments allow flexibility in setting loop performance over a level range of 5.0 to 559 mm (0.2 to 22 inches).

More Reliable Control… Premium quality hermetically-sealed switch with gold contacts and advanced knife-edge sensing provide highly dependable and accurate liquid level control.

Environmentally Responsible… Replacing a conventional pneumatic level loop with fully electric level control eliminates controller and dump valve venting and requires less maintenance.

L2 Liquid Level Controllers

Snap‐Acting or Throttling Control... One standard controller available as either throttling or snap‐acting.

Field‐Reversible Output... The controller can be adjusted in the field for direct or reverse action without additional parts. The controller also has adjustable gain sensitivity.

Easy Maintenance... Both the controller and the sensor can be easily disassembled to inspect the process seals and for maintenance.

Figure 7. Fisher L2e Liquid Level Controller

X0660

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

L2sj Liquid Level Controllers

Designed for use with Natural Gas... The L2sj controller is intended for use with natural gas as the pneumatic supply.

Reduced Carbon Footprint... Low‐bleed relay helps to conserve natural gas to reduce greenhouse gas emissions.

Reduced Operating Costs, Increased Revenue...

Integral action relay with rugged metal seats requires less maintenance and provides more dependable liquid level control, which can improve uptime. Reduced emissions result in an increase in natural gas available to the sales line.

Figure 8. Fisher L2sj Liquid Level Controller

Fisher 249 Sensors

249 sensors, in conjunction with either DLC3010/ DLC3020f digital level controllers or 2500 controllers and transmitters, are designed to measure changes in liquid level, liquid interface level, or density/specific gravity inside a process vessel.

249 level sensors are available in both caged and cageless configurations, as shown in the table below. Caged sensors provide more stable operation than do cageless sensors for vessels with internal obstructions or considerable internal turbulence. Cageless sensors are generally used on applications requiring large displacers that are accommodated by large flange connections. Different displacer stem lengths permit lowering the displacer to the desired depth.

Refer to table 4, 5, 6, 7, 8, and 9 for product line capabilities and options.

W9331

Product Bulletin

11.2:Level February 2015

Level Instruments

D103219X012

Table 4. Fisher 249 Sensor Displacer Diameters, Sensor Connections, and Ratings

Sensor Type Number

Caged

Displacers

W8171

Top‐Mounted Cageless

Sensors

W8334‐1

(2)

(1)

249 CL125 or 250

Pressure Rating Connection Size Connection Type

NPS 1‐1/2 or 2 Screwed or flanged

PN 10/40 or 63/100 DN 40

249B

249BF

(2)

249C

PN 10/16, 25/40, or 63 DN 50

CL600

CL150, 300, or 600

NPS 1‐1/2 or 2

CL600 NPS 1‐1/2 or 2 Screwed

CL150, 300, or 600

NPS 1‐1/2

249K CL1500 NPS 1‐1/2 or 2

249L CL2500

249BP

CL150, 300, or 600 NPS 4

NPS 2 (if a top connection

is specified, it will be NPS 1

flanged)

CL150 or 300 NPS 6 or 8 Raised‐face flanged

249CP CL150, 300, or 600 NPS 3 Raised‐face flanged

249P

PN 10/16, 25/40, or 63

(Ratings to PN 250 also available)

CL900 or 1500 NPS 4

DN 100 Flanged

CL150 through 2500 NPS 6 or 8 Raised‐face flanged

PN 10 to PN 160 NPS 4 Raised‐face or flat‐face

NPS 2 Flanged

Flanged

NPT or socket‐welding ends

Raised‐face flanged or ring‐type joint flanged

NPS 2

Raised‐face

Raised‐face flanged or ring‐type joint flanged

Ring‐type joint flanged

Raised‐face flanged or ring‐type joint flanged

CL125, 150, 250, 300, 900, or 1500 NPS 4 Raised‐face or flat‐face

CL600, 900, or 2500 NPS 4 Butt weld end

Side‐Mounted

Cageless Sensors

W9354

249VS

(2)

PN 10/16, 25/40 Type B flange DN 80

PN 25/40 Type B flange DN 100

Customer‐Supplied

Cage

(2)

249W

NPS 3

CL150, 300, 600

W8678

1. Not all sensor types are available in all world areas. Contact your Emerson Process Management sales office for information on sensor availability.

2. 249 sensors may be mounted on either DLC3010/DLC3020f instruments, or 2500 controllers/transmitters.

NPS 4

Raised‐face flanged

Level Instruments

D103219X012

Table 5. Fisher 249 Sensors Displacer Lengths

Sensor Type Number

Caged Displacers

249

249B, 249C, 249BF, 249K, 249L

Top‐Mounted Cageless Sensors

249BP, 249CP, 249P

Side‐Mounted Cageless Sensors

249VS

Top‐Mounted or on Customer Supplied Cage

249W

356, 813, 1219, 1524, 1829,

2134, 2438, 2743, 3048

Table 6. Fisher 249 Sensor Construction Materials

Part Type Number Material Notes

Cage, head, torque tube arm

Wafer body, torque tube arm

Standard Trim Bolting All Steel grade B7 studs or cap screws

1. Trim parts include displacer rod, driver bearing; displacer stem parts, and stem connection parts.

(1)

249 Cast iron 249B, 249BF, and 249BP Carbon steel 249C and 249CP CF8M (316 stainless steel) 249K Steel standard 249L Steel standard 249P Carbon Steel 249VS LCC (steel), WCC (steel), CF8M 249W NPS 3

NPS 4

All S31600

WCC, CF8M LCC, CF8M

and grade 2H nuts (standard),

mm Inches

356 or 813 14 or 32

Product Bulletin

11.2:Level

February 2015

Standard Displacer Length

14, 32, 48, 60, 72, 84,

96, 108, 120

For optional materials, and parts not shown, contact your Emerson Process Management

sales office.

Table 7. Fisher 249 Displacer and Torque Tube Materials

Part Standard Material Other Materials

Displacer

Displacer Stem, Driver Bearing, Displacer Rod and Driver

Torque Tube

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.

304 Stainless Steel 316 Stainless Steel for 249C, 249CP

316 Stainless Steel

(1)

N05500 316 SST for 249C, 249CP

316 Stainless Steel, N10276, N04400, Plastic, and Special Alloys

N10276, N04400, other Austenitic Stainless Steels, and Special Alloys

316 Stainless Steels, N06600, N10276

Table 8. Maximum Unbuoyed Displacer Weight

Sensor Type Torque Tube Wall Thickness Displacer Weight WT (lb)

249, 249B, 249BF, 249BP, 249W

249C, 249CP

249VS

249L, 249P

249K

1. High pressure CL900 through 2500.

Thin

Standard

Heavy

Standard

Heavy

Thin

Standard

(1)

Thin

Standard

Thin

Standard

3.3

5.0

9.5

4.0

6.4

3.0

5.5

4.5

8.5

3.8

7.3

Product Bulletin

11.2:Level February 2015

Table 9. Temperatures

Temperature Type or Material

DLC3010 / DLC3020f –40 to 80 –40 to 176

Ambient

Process

Combination of ambient

and process

Standard 2500 -40 to 71 -40 to 160

High‐temperature 2500 -18 to 104 0 to 220

Cast iron sensor parts –29 to 232 –20 to 450

Steel sensor parts –29 to 427 –20 to 800

Stainless steel sensor parts –198 to 427 –325 to 800

N04400 –198 to 427 –325 to 800

Graphite/stainless steel

gaskets

N04400/PTFE gaskets –73 to 204 –100 to 400

Some combinations of process and ambient temperatures within the above ranges require an optional heat insulator to protect the instrument from high or low temperatures. For example, an ambient temperature of 30_C or 86_F and a process temperature of 200_C or 392_F require a heat insulator.

Connection Styles and

Temperature Capability

_C _F

–198 to 427 –325 to 800

Level Instruments

D103219X012

Notes

For process temperatures below -29_C (-20_F) and for guidance on the need for a heat insulator, contact your Emerson Process Management sales office. If the ambient dew point is higher than the process temperature, ice might form and cause instrument malfunction and reduce insulator effectiveness.

Positions

Figure 9. Cage Connection Styles (also see table 10)

STYLE 1

Note: Cage connections shown illustrate the DLC3010/DLC3020f. Cage connections are also applicable to 2500 controllers/transmitters.

28B5536‐1 B1820‐2

STYLE 2 STYLE 3

STYLE 4

Level Instruments

D103219X012

Table 10. Cage Connection Styles (also see figure 9)

Connection Types:

Connection Locations:

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

Figure 10. Mounting Positions—Caged Displacers

Style 1 Style 2 Style 3 Style 4

Top and bottom Top and lower side Upper side and lower side Upper side and bottom

S = Screwed

F = Flanged

SW = Socket welding

Product Bulletin

11.2:Level

February 2015

RIGHT‐HAND MOUNTING LEFT‐HAND MOUNTING

Note: Mounting positions shown illustrate the DLC3010/DLC3020f. Mounting positions are also applicable to 2500 controllers/transmitters. 1 Position 5 is not available for NPS 2 CL300 and 600 249C.

Figure 11. Mounting Positions—Wafer Style (Customer Supplied Cage)

CAGE WITH SIDE CONNECTIONS

TOP‐MOUNTED

ON VESSEL

RIGHT‐HAND MOUNTING

Note: Mounting positions shown illustrate the DLC3010/DLC3020f. These positions are also applicable to 2500 controllers/transmitters.

LEFT‐HAND MOUNTING

CAGE WITH TOP AND BOTTOM CONNECTIONS

Product Bulletin

11.2:Level February 2015

Level Instruments

D103219X012

Pneumatic Liquid Level Instruments

Fisher 2500 controllers and transmitters (figures 12 and 13) are rugged, dependable, and simply constructed pneumatic instruments. In conjunction with a 249 sensor, they sense liquid level or interface level in a vessel, and produce a standard pneumatic output signal proportional to the process variable.

Standard or Custom Configuration... The 2500 controller in combination with a 249W sensor enables users to install pneumatic level controllers to a variety of industry standard or custom process vessel connections. The sensor consists of a wafer body, torque tube assembly and displacer and is rated for CL150, 300, and 600. The wafer body mounts between NPS 3 or 4 raised face flanges. Custom configurations

Figure 12. Fisher 2500 Controller in Combination with a 249W Sensor— Installed in a Typical Customer‐Supplied Cage

are also available to meet your specific application requirements. Refer to the 2500 specifications in tables 9, 11, 12, and 13, and the 249 specifications in tables 4, 5, 6, 7, 8, and 9.

Easy Adjustment... Simple dial‐knobs make set point and proportional valve opening changes straightforward and easy.

Simple, Durable Construction... Few moving parts are used. Knife‐edged driver bearing in sensor, and plated brass instrument case ball bearing for torque tube rotary shaft help provide low friction operation.

Reduced Maintenance and Operating Costs...

Spring‐out wire provides for in‐service cleaning of relay orifice. Supply pressure conservation is enhanced because relay exhaust opens only when output pressure is being reduced.

W8679

Level Instruments

D103219X012

Table 11. Fisher 2500 Controller/Transmitter General Specifications

2500 Proportional pneumatic controller 2502 Proportional‐plus‐reset pneumatic controller

Controller and Transmitter Selections

Process Sensor Range (Input Signal)

Allowable Specific Gravity (Standard)

Set Point Adjustment (Controllers only)

Zero Adjustment (Transmitters only)

Reset Adjustment (Proportional‐Plus‐Reset Controllers Only)

Anti‐Reset Differential Relief (2502F and 2502FR Controllers Only)

Output Signal‐‐Direct (Increasing Level Increases Output) or Reverse Action

Hazardous Area Classification

(1)

2502F Proportional‐plus reset pneumatic controller with anti‐reset windup 2500T Proportional pneumatic transmitter 2500S Differential gap (on‐off) pneumatic controller with full adjustment 2503 Differential gap (on‐off) pneumatic controller with limited adjustment

Fluid level or fluid interface level

Fluid density

Fluid level or fluid interface level

Fluid density

Proportional or reset controllers and transmitters

Differential gap controllers with full adjustment

Differential gap controllers with limited adjustment

2500 controllers/transmitters comply with the requirements of ATEX Group II Category 2 Gas and Dust

From 0 to 100 percent of displacer length sensors are 356 mm (14 inches) or 813 mm (32 inches); other lengths available depending on sensor construction

From 0 to 100 percent of displacement force change obtained with given displacer volume—standard volumes are 1016 cm 249C and 249CP sensors and 1622 or 1360 cm most other sensors; other volumes available depending upon sensor construction

2503 and 2503R: Specific gravity range, 0.25 to 1.10 All other types: Specific gravity range, 0.20 to 1.10

2503 and 2503R: Minimum change in specific gravity, 0.25 All other types: Minimum change in specific gravity, 0.20

Continuously adjustable to position control point or differential gap of less than 100 percent anywhere within displacer length (fluid or interface level) or displacement force change (density)

Continuously adjustable to position span of less than 100 percent anywhere within displacer length (fluid or interface level) or displacement force change (density)

Continuously adjustable from 0.005 to over 0.9 minutes per repeat (from 200 to under 1.1 repeats per minute)

Continuously adjustable from 0.14 to 0.48 bar (2 to 7 psi) differential to relieve excessive difference between proportional and reset pressures

0.2 to 1.0 or 0.4 to 2.0 bar (3 to 15 or 6 to 30 psig)

0 and 1.4 or 0 and 2.4 bar (0 and 20 or 0 and 35 psig)

0 and full supply pressure

Product Bulletin

11.2:Level

February 2015

(2)

—standard lengths for all

(62 in3) for

(99 or 83 in3) for

Options

1. Also refer to tables 4, 5, 6, and 7.

2. The torque tube and the displacer must be properly sized for the application in order for 0 to 100% of displacer length to be available.

Stainless steel heat insulator assembly Liquid level sight gauges Mechanical level indicator

Table 12. Fisher 2500 Controller/Transmitter Performance

Independent Linearity (Transmitters Only) 1 percent of output pressure change at span of 100 percent

Hysteresis

Repeatability 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 Response

0.6 percent of output pressure change at 100 percent of proportional band, differential gap, or span

4 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 (20 feet) of 6.3 mm (1/4‐inch) tubing

Product Bulletin

11.2:Level February 2015

Table 13. Fisher 2500 Controller/Transmitter Supply Pressure

Output Signal

Output Pressure Gauge

Indications

(1)

0.2 to 1.0 bar (3 to 15 psig),

Standard Supply and

except 0 and 1.4 bar (0 and 20

(2)

psig)

for on‐off controllers

0 to 30 psig 1.4 20 0.11 0.72 4.2 27

0.4 to 2.0 bar (6 to 30 psig), except 0 and 2.4 bar (0 and 35

(2)

psig)

for on‐off controllers

1. Consult your Emerson Process Management sales office about gauges in other units.

2. Control and stability may be impaired if this pressure is exceeded (except 2503 or 2503R controller without proportional valve).

3. Except 2503 or 2503R controller, which bleeds only when relay is open at exhaust position.

4. Normal m

5. At zero or maximum proportional band or span setting.

6. At setting in middle of proportional band or span range.

/hr=normal cubic meters per hour at 0_C and 1.01325 bar. Scfh=standard cubic foot per hour at 60_F and 14.7 psia.

0 to 60 psig 2.4 35 0.19 1.1 7 42

Figure 13. Typical Controller

Normal Operating Supply Pressure

(2)

Bar Psig Min

Level Instruments

Air Consumption at Normal Operating

Supply Pressure

Normal m3/h

(5)

(4)

Max

(6)

Min

(3)

(5)

D103219X012

(4)

Scfh

Max

(6)

W8333

W0656‐1

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

Emerson Fisher 249, Fisher 249P, Fisher 249VS, Fisher 249W, Fisher 2500 Data Sheet

Specifications and Main Features

Frequently Asked Questions

User Manual