Emerson Fisher 2500 Data Sheet D103219X012_Feb15_AQ

2015-03-30

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Fisherr Level Instruments

W8678

FIELDVUE DLC3010 DIGITAL LEVEL

CONTROLLER IN COMBINATION WITH

A FISHER 249W SENSOR

FISHER 2100E

ELECTRIC LEVEL SWITCH

X0660

FISHER L2e ELECTRIC

LEVEL CONTROLLER

X0682

W8418‐1

FISHER L2 PNEUMATIC

LEVEL CONTROLLER

n FIELDVUE™ Digital Level Instruments—

Microprocessor‐based, communicating digital level

transmitter for liquid level, specific gravity (density),

and liquid level interface. Using HARTR or

FOUNDATION™ 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

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.

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

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.

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.

FOUNDATION fieldbus/AMS Compliant... The DLC3020f

uses FOUNDATION 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).

Figure 1. Fisher DLC3010 Digital Level Controller in

Combination with a 249W Sensor —Installed in a

Typical Customer‐Supplied Cage

W8678

475 FIELD COMMUNICATOR

Figure 2. AMS Suite: Intelligent Device Manager

Configuration Screen

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(1)

For use with 249 caged and

uncaged displacer sensors DLC3010

Input Signal

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

Output Signal Analog 4‐20 mA DC direct (increasing input increases output) or reverse action

Digital HART 1200 baud FSK (frequency shift keyed)

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(2)

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

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.

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

Table 2. FIELDVUE DLC3020f General Specifications

Controller

Selections(1)

For use with 249 caged and

uncaged displacer sensors DLC3020f

Device Inputs

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

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(2)

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

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.

Table 3. FIELDVUE DLC3010/DLC3020f Performance(1)

Performance Criteria Stand‐Alone DLC3010 w/ NPS 3 249W,

Using a14‐inch Displacer

DLC3010 w/ All Other

249 Sensors

DLC3010 DLC3020f(2)

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

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

Repeatability $0.1% of full scale output < 0.10% of output span $0.5% of output span $0.3% of output span

Dead Band < 0.05% of input span $ 0.10% (RH9.2% to 90%) - - - - - -

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

Accuracy - - - $0.15% - - - - - -

Process Sensor

Range (Input

Signal)

Fluid Level or Fluid

Interface Level

From 0 to 100 percent of displacer length(3)—standard lengths for all sensors are 356 mm (14 inches)

or 813 mm (32 inches); other lengths available depending on sensor construction

Fluid Density

(DLC3010)

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

are 1016 cm3 (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

Allowable

Specific

Gravity

(Standard)

Fluid Level or Fluid

Interface Level Specific gravity range, 0.05 to 1.10; Minimum differential specific gravity 0.05(4)

Fluid Density

(DLC3010) Specific gravity range, 0.1 to 1.10; Minimum change in specific gravity 0.05(4)

Zero

Adjustment

Fluid Level or Fluid

Interface Level

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.

Fluid Density

(DLC3010)

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.

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.

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

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

Figure 5. Fisher 2100 Pneumatic Liquid Level Switch

W9954-1

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.

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

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.

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 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.

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

W9331

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.

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

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

Sensor Type Number(1) Pressure Rating Connection Size Connection Type

Caged

Displacers(2)

W8171

249 CL125 or 250 NPS 1‐1/2 or 2 Screwed or flanged

NPS 2 Flanged

249B

249BF

PN 10/40 or 63/100 DN 40 Flanged

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

CL600

NPS 1‐1/2 or 2

NPT or socket‐welding ends

CL150, 300, or 600 Raised‐face flanged or

ring‐type joint flanged

249C

CL600 NPS 1‐1/2 or 2 Screwed

CL150, 300, or 600 NPS 1‐1/2 Raised‐face

NPS 2

249K CL1500 NPS 1‐1/2 or 2 Raised‐face flanged or

ring‐type joint flanged

249L CL2500 NPS 2 (if a top connection

is specified, it will be NPS 1

flanged)

Ring‐type joint flanged

Top‐Mounted Cageless

Sensors(2)

W8334‐1

249BP CL150, 300, or 600 NPS 4 Raised‐face flanged or

ring‐type joint 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) DN 100 Flanged

CL900 or 1500 NPS 4 Raised‐face flanged or

ring‐type joint flanged

CL150 through 2500 NPS 6 or 8 Raised‐face flanged

Side‐Mounted

Cageless Sensors(2)

W9354

249VS

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

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

CL600, 900, or 2500 NPS 4 Butt weld end

Customer‐Supplied

Cage(2)

W8678

249W

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

Raised‐face flanged

PN 25/40 Type B flange DN 100

CL150, 300, 600

NPS 3

NPS 4

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.

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

Table 5. Fisher 249 Sensors Displacer Lengths

Sensor Type Number Standard Displacer Length

mm Inches

Caged Displacers 356 or 813 14 or 32

249

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

356, 813, 1219, 1524, 1829,

2134, 2438, 2743, 3048

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

96, 108, 120

Top‐Mounted Cageless Sensors

249BP, 249CP, 249P

Side‐Mounted Cageless Sensors

249VS

Top‐Mounted or on Customer Supplied Cage

249W

Table 6. Fisher 249 Sensor Construction Materials

Part Type Number Material Notes

Cage, head,

torque tube arm

249 Cast iron

For optional materials, and parts not shown,

contact your Emerson Process Management

sales office.

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

Wafer body,

torque tube arm

249W NPS 3

NPS 4

WCC, CF8M

LCC, CF8M

Standard Trim(1) All S31600

Bolting All Steel grade B7 studs or cap screws

and grade 2H nuts (standard),

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

Table 7. Fisher 249 Displacer and Torque Tube Materials

Part Standard Material Other Materials

Displacer 304 Stainless Steel

316 Stainless Steel for 249C, 249CP

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 SST for 249C, 249CP 316 Stainless Steels, 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.

Table 8. Maximum Unbuoyed Displacer Weight

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

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

Thin

Standard

Heavy

3.3

5.0

9.5

249C, 249CP Standard

Heavy

4.0

6.4

249VS Thin

Standard

3.0

5.5

249L, 249P(1) Thin

Standard

4.5

8.5

249K Thin

Standard

3.8

7.3

1. High pressure CL900 through 2500.

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

Table 9. Temperatures

Temperature Type or Material Temperature Capability Notes

_C_F

Ambient

DLC3010 / DLC3020f –40 to 80 –40 to 176

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.

Standard 2500 -40 to 71 -40 to 160

High‐temperature 2500 -18 to 104 0 to 220

Process

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 –198 to 427 –325 to 800

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

Combination of ambient

and process

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

Positions

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

STYLE 2 STYLE 3 STYLE 4

28B5536‐1

B1820‐2

Note:

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

STYLE 1

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

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

Connection Types:

S = Screwed

F = Flanged

SW = Socket welding

Connection Locations:Style 1 Style 2 Style 3 Style 4

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

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

Figure 10. Mounting Positions—Caged Displacers

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

CAGE WITH TOP AND

BOTTOM CONNECTIONS

RIGHT‐HAND MOUNTING LEFT‐HAND MOUNTING

Note:

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

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

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

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.

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

Customer‐Supplied Cage

W8679

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

Table 11. Fisher 2500 Controller/Transmitter General Specifications

Controller and Transmitter

Selections(1)

2500 Proportional pneumatic controller

2502 Proportional‐plus‐reset pneumatic controller

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

Process Sensor Range (Input Signal)

Fluid level or fluid

interface level

From 0 to 100 percent of displacer length(2)—standard lengths for all

sensors are 356 mm (14 inches) or 813 mm (32 inches); other lengths

available depending on sensor construction

Fluid density

From 0 to 100 percent of displacement force change obtained with

given displacer volume—standard volumes are 1016 cm3 (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

Allowable Specific Gravity (Standard)

Fluid level or fluid

interface level

2503 and 2503R: Specific gravity range, 0.25 to 1.10

All other types: Specific gravity range, 0.20 to 1.10

Fluid density 2503 and 2503R: Minimum change in specific gravity, 0.25

All other types: Minimum change in specific gravity, 0.20

Set Point Adjustment (Controllers only)

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)

Zero Adjustment (Transmitters only)

Continuously adjustable to position span of less than 100 percent

anywhere within displacer length (fluid or interface level) or

displacement 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 (2502F and 2502FR Controllers Only)

Continuously adjustable from 0.14 to 0.48 bar (2 to 7 psi)

differential to relieve excessive difference between proportional

and reset pressures

Output Signal‐‐Direct (Increasing Level Increases

Output) or Reverse Action

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)

Differential gap

controllers with full

adjustment

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

Differential gap

controllers with limited

adjustment

0 and full supply pressure

Hazardous Area Classification

2500 controllers/transmitters comply with the requirements of

ATEX Group II Category 2 Gas and Dust

Options

Stainless steel heat insulator assembly

Liquid level sight gauges

Mechanical level indicator

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.

Table 12. Fisher 2500 Controller/Transmitter Performance

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

Hysteresis 0.6 percent of output pressure change at 100 percent of proportional band,

differential gap, or span

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

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

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

Table 13. Fisher 2500 Controller/Transmitter Supply Pressure

Output Signal

Standard Supply and

Output Pressure Gauge

Indications(1)

Normal Operating

Supply Pressure(2)

Air Consumption at Normal Operating

Supply Pressure(3)

Normal m3/h(4) Scfh(4)

Bar Psig Min(5) Max(6) Min(5) Max(6)

0.2 to 1.0 bar (3 to 15 psig),

except 0 and 1.4 bar (0 and 20

psig)(2) 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

psig)(2) for on‐off controllers

0 to 60 psig 2.4 35 0.19 1.1 7 42

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 m3/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.

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

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

Figure 13. Typical Controller

W0656‐1

W8333

Level Instruments

D103219X012

Product Bulletin

11.2:Level

February 2015

Emerson Fisher 2500 Data Sheet D103219X012_Feb15_AQ

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