Fisher 2516, 2516F Instruction Manual

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

2506 Series Multi-TrolR Receiver/Controllers
(Type 2506, 2516, 2516F)

Contents

Introduction 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scope of Manual 2. . . . . . . . . . . . . . . . . . . . . . . . . .

Description 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Educational Services 4. . . . . . . . . . . . . . . . . . . . . .

Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting the Controller 5. . . . . . . . . . . . . . . . . . . .

Actuator Yoke Mounting 5. . . . . . . . . . . . . . . . . .

Wall Mounting 5. . . . . . . . . . . . . . . . . . . . . . . . . . .

Actuator Diaphragm Case Mounting 6. . . . . . . .

Pipestand Mounting 7. . . . . . . . . . . . . . . . . . . . . .

2500 Series Controller/Transmitter

and 2506 Series Receiver/Controller

Mounting 7. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connections 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply Connection 8. . . . . . . . . . . . . . . . . . . . . . .

Output Connections 9. . . . . . . . . . . . . . . . . . . . . .

Instrument Connection 10. . . . . . . . . . . . . . . . . .

Vents 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remote Set Point Connection 11. . . . . . . . . . . .

Startup 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjustments 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Set Point Adjustment 12. . . . . . . . . . . . . . . . . . . . .

Remote Set Point Adjustment 12. . . . . . . . . . . . . .

Proportional Band Adjustment 12. . . . . . . . . . . . .

Reset Adjustment

(Type 2516 Receiver/Controller Only) 13. . . .

Anti-Reset Windup Valve Adjustment

(Type 2516F Receiver/Controller Only) 13. . .

Calibration 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Principle of Operation 14. . . . . . . . . . . . . . . . . . . . . .

Type 2506 Receiver/Controllers 15. . . . . . . . . . .

Types 2516, 2516F Receiver/Controllers 15. . . .

Maintenance 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changing Controller Action 16. . . . . . . . . . . . . . . .

Troubleshooting 17. . . . . . . . . . . . . . . . . . . . . . . . .

Testing Relay Deadband 17. . . . . . . . . . . . . . . . . .

Replacing Receiver/Controller Parts 17. . . . . . . .

Bellows Replacement 17. . . . . . . . . . . . . . . . . . .

Changing the Relay 18. . . . . . . . . . . . . . . . . . . . .

Changing Proportional or Reset Valve 19. . . . .

Parts Ordering 19. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Kits 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

W4687 / IL

Figure 1. Type 2506 Multi-TrolR Receiver-Controller

W4688 / IL

Figure 2. Type 2516 Multi-TrolR Receiver-Controller

www.Fisher.com

D200129X012

2506 Series Receiver/Controllers

Instruction Manual

Form 1041

November 2005

Contents (Continued)

Parts List 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Receiver/Controller Common Parts 19. . . . . . . . .

Anti-Reset Windup Valve for

Type 2516F Only 22. . . . . . . . . . . . . . . . . . . . . .

Type 2516F Reset and Anti-Reset Windup

Valve Assembly 22. . . . . . . . . . . . . . . . . . . . . . .

Mounting Parts 23. . . . . . . . . . . . . . . . . . . . . . . . . .

Yoke Mounting 23. . . . . . . . . . . . . . . . . . . . . . . . .

Wall Mounting 23. . . . . . . . . . . . . . . . . . . . . . . . . .

Case Mounting 23. . . . . . . . . . . . . . . . . . . . . . . . .

Pipestand Mounting 24. . . . . . . . . . . . . . . . . . . . .

2500 Series Controller/Transmitter

and 2506 Series Receiver/Controller

Mounting 24. . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction

Scope of Manual

This manual provides installation, startup,
calibration, maintenance, and parts ordering
information for 2506 Series Multi-Trol
receiver/controllers. Figure 1 shows a Type 2506
receiver/controller. Figure 2 shows a Type 2516
receiver/controller.

A 2506 Series receiver/controller is often used with a
2502 Series Level-Trol® controller/transmitter. For
information about 2502 Series controller/transmitters
or associated equipment such as pressure
regulators, sensors, accessories, or related control
devices, see the appropriate instruction manual, or
contact your Fisher® sales office.

No person may install, operate, or maintain a 2506
Series Multi-Trol receiver/controller without first D
being fully trained and qualified in valve, actuator
and accessory installation, operation and
maintenance and D carefully reading and
understanding the contents of the manual. If you
have any questions about these instructions, contact
your Fisher sales office.

R

Description

See table 2.

The receiver/controllers described in this manual
provide:

D Proportional-only control: Type 2506 (with snap

action: Type 2506S)

D Proportional-plus-reset control (Type 2516)

D Proportional-plus-reset-plus-anti-reset windup

control (Type 2516F)

See figures 9, 10, and 11.

The receiver/controller takes a pneumatic input
signal from either a 2500 Series
controller/transmitter or a control device. The unit
then provides a pneumatic output signal that
operates a final control element.

When a Type 2506 receiver/controller is used to
provide proportional-only control, the pneumatic
output signal from the unit can also be piped to a
remote receiving indicator or recording device. This
provides a visual indication of receiver/controller
action.

The INCREASE OUTPUT PRESSURE adjustment is
used to increase or decrease the output pressure in
relationship to the input pressure. Changing this
adjustment changes the position of the nozzle in
relationship to the beam/flapper assembly. In turn,
the amount of supply pressure released by the relay
is changed and the pneumatic output signal that
operates a final control element is affected.

If a remote set point signal is used, it is piped to the
remote set point connection and into remote set
point bellows. The remote signal expands the
bellows and moves the beam/flapper assembly. This
affects the controller output in the same way a
change in the INCREASE OUTPUT PRESSURE
adjustment affects the output.

Specifications

Specifications are shown in table 1.

2

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

Table 1. Specifications

Available Configurations

For additional information, refer to table 2

Type 2506: A receiver/controller

(1)

that is set for
either proportional or snap action (S) control or for
either direct or reverse (R) action

Type 2516: A Type 2506 that also provides
proportional-plus-reset control

Type 2516F: A Type 2516 that also provides
anti-reset windup control

Input Signal Range

(2)

From a transmitter or control device, a signal of

0.2 to 1.0 bar (3 to 15 psig) or 0.4 to 2.0 bar (6 to
30 psig) is required depending on
receiver/controller range

Refer to the receiver/controller nameplate for
specific range.

Output Signal Range

(2,3)

See table 3

Proportional Band

(2)

Reset

(2)

, and Anti-Reset

Windup

See table 2 and the Changing Controller Action
procedure

Performance

Hysteresis: 0.6 percent of output pressure

change at 100 percent of proportional band for
Type 2506 proportional receiver/controllers only

Standard Supply and Output Pressure Gauge
Indications

See table 3

Standard Tubing Connections

All connections are 1/4-inch NPT female

Hazardous Area Classification

2506 Series receiver/controllers comply with the
requirements of ATEX Group II Category 2 Gas
and Dust

Output Action

Direct Action: An increasing fluid, interface level,

or density increases output pressure or,

Reverse Action: An increasing fluid, interface
level, or density decreases output pressure

Remote Set Point Signal Range

From a control device, provide a remote set point
signal that is 0.2 to 1.0 bar (3 to 15 psig) or 0.4 to

2.0 bar (6 to 30 psig) that matches the
receiver/controller input signal range

Operative Ambient Temperature Limits

Standard: −40 to 71°C (−40 to 160°F)

High Temperature: −18 to 104°C (0 to 220°F)

Approximate Weight

4.54 kg (10 Pounds)

Declaration of SEP

(4)

Fisher Controls International LLC declares this

Supply Pressure

(2,4)

Normal Operating Pressure: See table 3

Maximum Pressure to Prevent Internal Part
Rupture: 3.4 bar (50 psig)

Steady State Air Consumption

(3)

See table 3

1. Receiver/controllers are field adjustable between direct or reverse action. If the receiver/controller is set for reverse action at the factory, an R suffix will appear in the type number.
Receiver/controllers are field-adjustable between proportional and snap action. If the receiver/controller is set for snap action at the factory, an S suffix appears in the type number.

2. These terms are defined in ISA Standard S51.1.

3. Normal m3/hr at 0°C, 1.01325 bar absolute (Scfh at 60°F, 14.7 psia).

4. The pressure/temperature limits in this document, and any applicable standard or code limitation should not be exceeded.

product to be in compliance with Article 3
paragraph 3 of the Pressure Equipment Directive
(PED) 97 / 23 / EC. It was designed and
manufactured in accordance with Sound
Engineering Practice (SEP) and cannot bear the
CE marking related to PED compliance.

However, the product may bear the CE marking
to indicate compliance with other applicable EC
Directives.

3

2506 Series Receiver/Controllers

Instruction Manual

Form 1041

November 2005

Control Mode

Proportional control
(Type 2506)

Snap action control
(Type 2506S)

Proportional-plus-reset
control (Type 2516)

Proportional-plus-reset
with differential relief
control (Type 2516F)

1. Proportional control is continuously active between 0 and 100 percent of the transmitter signal span. Differential gap provides snap action between 0 and 100 percent of the
transmitter signal. Do not use reset controllers in snap action.

(1)

Proportional Band: Adjustable from 0 to 100% of transmitter signal.

Snap Action: Control output is at 0 or 100% of input supply pressure. Switching
depends on position of sensor and is adjustable.

Proportional Band: Adjustable from 0 to 200% of transmitter signal. Recommended
setting is from 20 to 200%.
Reset: Adjustable form 0.01 to 74 minute per repeat with standard reset valve setting.

Proportional Band: Adjustable from 0 to 200% of transmitter signal. Recommended
setting is from 20 to 200%.
Reset: Adjustable from 0.01 to 74 minute per repeat with standard reset valve setting.
Differential Relief: Provides relief when output pressure falls or when output pressure
rises depending on valve adjustment.

Action (Full Output Change) Output Signal

0.2 to 1.0 bar (3 to 15 psig) or

0.4 to 2.0 bar (6 to 30 psig)

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

0.2 to 1.0 bar (3 to 15 psig) or

0.4 to 2.0 bar (6 to 30 psig)

Table 3. Supply Pressure Data

Table 2. Additional Information

OUTPUT SIGNAL

RANGE

0.2 to 1.0 bar (3 to 15 psig) 0 to 30 psig 1.4 20 4.2 scfh

0.4 to 2.0 bar (6 to 30 psig) 0 to 60 psig 2.4 35 7 scfh

1. Consult your Fisher sales office for gauges calibrated in other units of measurement.

2. Control and stability may be impaired if this pressure is exceeded.

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

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

5. If air consumption is desired in normal m3/hr at 0°C and 1.01325 bar, multiply scfh by 0.0268.

STANDARD SUPPLY

AND OUTPUT

PRESSURE GAUGE

INDICATIONS

(1)

NORMAL

OPERATING

SUPPLY

PRESSURE

Bar Psig Minimum

(2)

AIR CONSUMPTION AT

NORMAL OPERATING

SUPPLY PRESSURE

(3)

(5)

(5)

Maximum

27 scfh

42 scfh

(4)

(5)

(5)

Educational Services

For information on available courses for Type 2506
Series receiver/controllers 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: [e-mail]

Note

Neither EmersonR, Emerson Process
Management, Fisher, 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.

Installation

WARNING

To avoid personal injury or property
damage resulting from the sudden
release of pressure:

D Always wear protective clothing,
gloves, and eyewear when performing
any installation procedures to avoid
personal injury.

D Check with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.

D If installing into an existing
application, also refer to the WARNING
at the beginning of the Maintenance
section in this instruction manual.

4

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

235
(9.25)

171
(6.76)

232
(9.12)

FRONT VIEW

AD4913-H
A3844-1 / IL

BOTTOM VIEW

Figure 3. Dimensions and Location of Connections

Mounting the Controller

Note

If a separate receiver/controller unit
has been ordered for field installation
with an existing valve/actuator
assembly or 2500 Series
controller/transmitter, additional
mounting parts may be required. Find
the mounting description in the parts
list at the end of this manual. Then,
order any additional parts.

Figures 3 through 8 show dimensions and
connection locations used when you install a
receiver/controller.

BELLOWS VENT
OR REMOTE
SET POINT
CONNECTION

OUTPUT CONNECTION
(MARKED DIAPHRAGM)

70
(2.75)

44
(1.75)

SUPPLY CONNECTION

57
(2.25)

70
(2.75)

REAR VIEW

MOUNTING
HOLES (2 PLACES)
5/16-18 UNC

41
(1.62)

INSTRUMENT
CONNECTION

CASE
VENT

TAPPED
VENT FOR
VENT LINE
(OPTIONAL)

mm

(INCH)

2. Place the two cap screws (key 48) through the
mounting plate from “back to front”. Engage the cap
screw threads in the mounting holes in the
receiver/controller case and tighten the cap screws
to attach the mounting plate to the back of the
receiver/controller.

3. Place cap screws (key 39) through the yoke
mounting holes in the mounting plate from “front to
back”. Place a spacer (key 174) over the threads of
the cap screws extending from the mounting plate to
properly separate the mounting plate and the lower
yoke boss of the actuator (figure 5).

4. Attach the mounting plate with receiver/controller
to the lower yoke boss of the actuator yoke. Be sure
the spacers support the mounting plate. Be sure the
receiver/controller is parallel with the actuator yoke
and then tighten the cap screws into the yoke boss.

Actuator Yoke Mounting

See figure 4 for a typical mounting plate. Key
numbers are shown in figure 5.

1. Locate the mounting plate (key 164, figure 5).
Select appropriate mounting holes in the mounting
plate for the receiver/controller. Then, align the
mounting holes in the mounting plate with the
mounting holes in the receiver/controller case.

5. If supply pressure is piped through a
filter/regulator, bolt the regulator directly to the upper
yoke boss using the cap screws (key 85). Provide
appropriate piping from the filter/regulator output
connection to the receiver/controller supply
connection.

Wall Mounting

See figure 6 for key number locations. The mounting
plate is shown in figure 5.

5

2506 Series Receiver/Controllers

83

13

8 HOLES
11/16 DIAMETERS
(17)

(0.50)

35
(1.38)

(3.25)

57
(2.25)

38
(1.50)

17
(0.69)

13
(0.50)

14
(0.58)

17
(0.69
)

102
(4.00)

MOUNTING
BRACKET
(KEY 164)

Instruction Manual

November 2005

121
(4.75)

CAP HEAD SCREW
(KEY 39)

CAP HEAD
SCREW
(KEY 48)

Form 1041

IC2218-E / IL

14
(0.56)

mm

(INCH)

Figure 4. Mounting Plate for Yoke Mounting, Wall Mounting

SPACER (KEY 174)

CAP SCREW AND
LOCKWASHER
(KEYS 39 AND 83)

38b39604-A / IL
AD44913-H
A3848-1 / IL

REGULATOR OUTPUT
(SUPPLY CONNECTION
ON OPPOSITE SIDE)

MOUNTING PLATE
(KEY 164)

CAP HEAD SCREW
(KEY 48)

Figure 5. Yoke Mounting

MOUNTING
PLATE
(KEY 164)

194
(7.62)

SPACER
(KEY 78)

CAP SCREW AND
LOCKWASHER
(KEYS 39 AND 83)

SPACER (KEY 174)

AD4913-H
A3846-1 / IL

86
(3.38)

mm

(INCH)

Figure 7. Case Mounting

1. Install lock washers (key 83) on the cap screws
(key 39). Then, insert the cap screws through the
mounting plate from “back to front”. Place a spacer
(key 174) over the threads of each cap screw as it
extends from the mounting plate. The spacers are
required to properly separate the receiver/controller
from the mounting plate. Then, thread the cap
screws into the mounting holes in the
receiver/controller case and tighten.

2. Install lock washers (key 83) on the cap screws
(key 48). Then, insert the cap screws through the
mounting plate from ‘‘front to back’’. Place a spacer
(key 174) over the threads of each cap screw as it
extends from the mounting plate. The spacers are
required to properly separate the mounting plate
from the wall mounting position. Then, thread the
cap screws into holes prepared at the wall mounting
position and tighten.

3. Provide appropriate piping from the filter/regulator
output connection to the receiver/controller supply
connection.

Actuator Diaphragm Case Mounting

To mount a receiver/controller to the diaphragm
casing of a standard Fisher diaphragm actuator,
remove two hex nuts and hex head cap screws
securing the upper and lower diaphragm casings. If
necessary, refer to the appropriate actuator
instruction manual to locate the hex head cap
screws and nuts.

See figure 7 for key number locations.

AD4913-H
A3847-1 / IL

SIDE VIEW

Figure 6. Wall Mounting

6

mm

(INCH)

1. Locate the receiver/controller mounting holes in
mounting bracket (key 164, figure 7).

2. Place the two cap screws (key 48) through the
receiver/controller mounting plate holes from ‘‘back

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

to front’’. Engage the threads in the
receiver/controller mounting holes and tighten the
cap screws to attach the mounting plate to the back
of the receiver/controller.

3. Locate the receiver/controller mounting position
on the horizontal edge of the diaphragm case. A
typical Fisher diaphragm actuator features upper
and lower diaphragm casings held together with hex
head cap screws and hex nuts. Remove the hex
nuts from two hex head cap screws joining the upper
and lower casing. Then, remove the cap screws.

4. Place the mounting bracket over the empty
casing holes. Insert the casing cap screws through
the mounting bracket, upper casing, and lower
casing. Add the nuts and tighten to secure the
mounting bracket with receiver/controller to the
casing.

5. If supply pressure is piped through a
filter/regulator, the regulator may be attached in one
of two locations:

D Attach the regulator directly to the upper yoke
boss using the cap screws (key 85) for yoke
mounting.

D Attach the regulator to the casing using a
mounting bracket (key 177). The mounting bracket
for the regulator is the same as the mounting bracket
for the receiver/controller. Follow steps 1 through 4
to mount the regulator.

MOUNTING PLATE

2

NOTES:

1

PIPE CLAMP INCLUDES NUTS
FILTER/REGULATOR MOUNTING AREA

2

AD4913-H
A3845-1 / IL

(KEY 164)

SPACE SPOOL
(KEY 78)

157
(61.9)

Figure 8. Pipestand Mounting

CAP SCREW
AND
LOCKWASHER
(KEYS 39
AND 83)

PIPE
CLAMP
(KEY 175)

51 j PIPE
(2.00)

mm

(INCH)

3. Engage the cap screw threads in the mounting
holes in the receiver/controller case and tighten the
cap screws to attach the mounting plate to the back
of the receiver/controller.

4. Attach the mounting plate with receiver/controller
to a 2-inch (nominal) pipe with pipe clamps (key

175). Each pipe clamp includes two nuts. Tighten
clamp nuts.

5. If supply pressure is piped through a
filter/regulator, the regulator may be attached to the
mounting plate using cap screws (key 85), lock
washers (key 84), and hex nuts (key 40).

1

6. Connect the filter/regulator output connection to
the receiver/controller supply connection.

Pipestand Mounting

See figure 8 for key number locations.

1. Locate the mounting plate (key 164). Select
appropriate mounting holes in the mounting plate for

the receiver/controller. Then, align the mounting
holes in the mounting plate with the mounting holes
in the receiver/controller case.

2. Place the two cap screws (key 48) through the
mounting plate from ‘‘back to front’’. Place a spacer
(key 174) over the threads of each cap screw as it
extends from the mounting plate. The spacers are
required to properly separate the receiver/controller
from the mounting plate.

6. Provide appropriate piping from the filter/regulator
output connection to the receiver/controller supply
connection.

2500 Series Controller/Transmitter and
2506 Series Receiver/Controller
Mounting

If the controller/transmitter and receiver/controller
are ordered simultaneously, the factory will mount
them together before shipment (figure 9). For
examples of typical transmitter/receiver mounting
arrangements, see figures 10 and 11.

If the receiver/controller is ordered separately for use
with a 2500 Series controller/transmitter, it may not
have the required mounting parts. If mounting parts
are required, consult the parts list under the specific
mounting application.

See figure 9 for key number locations.

7

2506 Series Receiver/Controllers

235
(9.25)

TUBING
(KEY 169)

406

AR5748-B
3V7594-B
B2115-1 / IL

(16.00)

60
(2.37)

FRONT VIEW

TRANSMITTER
OUTPUT

TUBING
(KEY 168)

OUTPUT
CONNECTION
(MARKED
DIAPHRAGM)

REAR VIEW

Instruction Manual

1/4 NPT SUPPLY
(ON REGULATOR)

MOUNTING PLATE (KEY 164)

CAP SCREW AND LOCKWASHER
(KEYS 39 AND 83)

BELLOW VENTS OR
REMOTE SETPOINT CONNECTION

INSTRUMENT INPUT
CONNECTION

SUPPLY CONNECTION

1/4 NPT REMOTE
LEVEL INDICATOR

Form 1041

November 2005

mm

(INCH)

Figure 9. 2500 Series Controller-Transmitter and 2506 Series Receiver-Controller Mounting

1. Install lock washers (key 83) on the cap screws
(key 39). Then, insert the cap screws through the
mounting plate from ‘‘back to front’’. Thread the cap
screws into the mounting holes in the
receiver/controller case and tighten.

2. Install lock washers (key 83) on the cap screws
(key 48). Then, insert the cap screws through the
mounting plate from ‘‘back to front’’. Thread the cap
screws into the mounting holes in the
controller/transmitter.

3. If supply pressure is piped through a
filter/regulator, bolt the regulator to the back of the
controller/transmitter.

4. Provide appropriate piping connections between
the units as shown in figures 10 or 11.

Connections

WARNING

exceeds the maximum safe working
pressure of any connected equipment.

To complete the installation of a receiver/controller,
make connections with tubing and fittings between
the receiver/controller and the actuator. The fittings,
tubing, and mounting parts required depend on the
type number and optional equipment such as filter,
regulator, and bypass valve.

All pressure connections on the 2506 Series
receiver/controllers are 1/4-inch NPT female fittings
(figures 3 and 9). Use 1/4-inch piping or 3/8-inch
tubing to these connections.

If remote venting is required, see the Vents
subsection below.

Supply Connection

WARNING

The controller is capable of providing
full supply pressure to connected
equipment. To avoid personal injury or
property damage caused by parts
bursting from system overpressure,
make sure the supply pressure never

8

Severe personal injury or property
damage may occur if the instrument
air supply is not clean, dry and oil free
or non-corrosive gas. While use and
regular maintenance of a filter that

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

NOTE:

SEE FIGURE 9 FOR REAR VIEW

1

DF5357-A
A3701-2 / IL

SUPPLY

2500 SERIES
CONTROLLER/
TRANSMITTER

2506 SERIES
RECEIVER/
CONTROLLER

FROM DIAPHRAGM
CONNECTION TO
ACTUATOR

1

DIAPHRAGM
ACTUATOR

CONTROL
VALV E

1

1

Figure 10. Typical Transmitter with Receiver and Control Valve Installation Assembly

remove particles larger than 40
microns in diameter will suffice in
most applications, check with a Fisher
Field office and Industry Instrument air
quality standards for use with
corrosive gas or if you are unsure
about the proper amount or method of
air filtration or filter maintenance.

If the existing supply is corrosive,
make sure the tubing and instrument
components that contact the corrosive
medium are of suitable
corrosion-resistant materials, or
change to a noncorrosive supply
medium.

WARNING

Personal injury or property damage
may occur from bursting parts due to
overpressuring any system
component. To avoid injury or

damage, provide pressure-relieving or
pressure-limiting devices if supply or
input pressure could exceed the
maximum allowable pressures listed in
table 3.

It is recommended that supply pressure pass
through a filter/regulator combination such as a
67CFR. See table 3 for recommended supply
pressures to the receiver/controller.

Typical supply pressure for the 67CFR is clean dry
air or a gas at a pressure of 2.5 bar (35 psig) to a
maximum of 17 bar (250 psig). For specific regulator
limits, see the appropriate regulator instruction
manual.

Output Connections

See figure 3.

Use 3/8-inch tubing between the actuator and the
receiver/controller. Connect the output (diaphragm)
connection to the appropriate actuator connection.

9

2506 Series Receiver/Controllers

CONTROLLER/
TRANSMITTER
SUPPLY

RECEIVER/

4

CONTROLLER SUPPLY

2500 SERIES
CONTROLLER/
TRANSMITTER

2

INDICATOR

1

PANEL
LOADER
REMOTE
SET POINT
ADJUSTMENT

SUPPLY

3

CONTROLLER OUTPUT
PIPING

2506 SERIES REMOTE
RECEIVER/CONTROLLER

DIAPHRAGM
ACTUATOR

Instruction Manual

November 2005

CENTRALIZED
CONTROL
PANEL

4

Form 1041

NOTES:

1

PIPING FROM TRANSMITTER OUTPUT TO PANEL INDICATOR

2

PIPING FROM TRANSMITTER OUTPUT TO PANEL RECEIVER/CONTROLLER

INSTRUMENT INPUT. SEE FIGURE 3 FOR CONNECTION LOCATION

PIPING FROM PANEL LOADER TO RECEIVER/CONTROLLER REMOTE SET POINT

3

CONNECTION. SEE FIGURE 3 FOR CONNECTION LOCATION.

SEE FIGURE 3 FOR CONNECTION LOCATION.

4

DF5379-A
A3702-2 / IL

Figure 11. Typical Transmitter and Receiver Installation with an Indicator and Remote Set Point Connection

Instrument Connection

See figure 3.

Use 3/8-inch tubing to connect the output from the
control device to the INSTRUMENT connection on
the receiver/controller.

Vents

WARNING

If a flammable or hazardous gas is
used as supply pressure medium,
personal injury or property damage
could result from fire or explosion
caused by the accumulated gas. Injury
or property damage could also result

CONTROL VALVE

from contact with the flammable or
hazardous gas.

The case and cover assembly does not
form a gas-tight seal and flammable or
hazardous gas could leak from this
unit. Therefore, if the
receiver/controller unit is enclosed,
install a remote vent line to remove
part of the exhaust gas to a properly
ventilated area. However, a remote
vent line cannot be relied upon to
remove all hazardous gas. Vent line
piping should comply with local and
regional codes and should be as short
as possible. Select vent line piping
with adequate inside diameter and
install with few bends to reduce case
pressure buildup.

10

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

See figure 3 for vent locations.

A receiver/controller may be ordered with one of two
vent configurations:

D Standard, with 1/4-inch case vent open. The
standard receiver/controller case (key 1,
p/n 4D396044012) is not drilled and tapped for the
optional tapped vent.

D Optional, with tapped vent, for applications
requiring vent line attachment to receiver/controller
case. The optional receiver/controller case (key 1,
p/n 2E355544012) features a tapped vent for
applications requiring a remote vent line. The
standard case vent should be sealed with a machine
screw.

An air vent plug (key 137) with gasket (key 138) and
hex nut (key 139) can be added to the tapped vent.
The air vent plug provides a 1/4-Inch NPT female
fitting.

D Receiver/controllers feature an open bellows
vent/remote set point connection. An external vent
assembly (key 128) is recommended if the remote
set point connection is not made. The external vent
assembly can be driven into the open bellows vent.

Protect all vents against the entrance of any foreign
material that could plug them. Check the vents
periodically to be certain they are not plugged.

Remote Set Point Connection

WARNING

Severe personal injury or property
damage may occur if the instrument
air supply is not clean, dry and oil free
or non-corrosive gas. While use and
regular maintenance of a filter that
remove particles larger than 40
microns in diameter will suffice in
most applications, check with a Fisher
Field office and Industry Instrument air
quality standards for use with
corrosive gas or if you are unsure
about the proper amount or method of
air filtration or filter maintenance.

See figure 3.

The remote set point connection is made at the
tapped bellows vent/remote set point connection on
the rear of the receiver/controller case. A vent
assembly (key 128) is recommended if the remote
set point connection is not made.

To make a remote set point connection, remove the
vent assembly from the connection. Install piping
from the remote set point loader or regulator.

When a panel loader or regulator is used for remote
set point adjustment, as shown in figure 11, an
adjustable output range of 0.2 to 1 bar (3 to 15 psig)
or 0.4 to 2 bar (6 to 30) is required to match the
receiver/controller output range.

Use clean, dry air or a non-corrosive gas for supply
pressure to the remote set point bellows.

Startup

It is important that the output range of the transmitter
or other device used as the input to the
receiver/controller be adjusted so that its output
range corresponds to the input signal range of the
receiver/controller. Be sure the receiver/controller
action (direct or reverse) is correct for the
application.

To start the system:

D For all receiver/controllers, perform steps 1

and 2.

1. See table 3 for specific pressure limits. Be sure
the correct supply pressure is available. If
necessary, adjust the regulator to 1.4 bar (20 psig)
for a 0.2 to 1 bar (3 to 15 psig) or 2.4 bar (35 psig)
for a 0.4 to 2 bar (6 to 30 psig) receiver/controller
range.

2. Turn on the supply pressure to the
receiver/controller.

D To make the proper level or output pressure
setting for a Type 2506 receiver/controller, go to
step 3. To make the proper level or output
pressure setting for a Type 2516
receiver/controller, go to step 9.

D For the Type 2506 receiver/controller:

3. Set the proportional band adjustment at 15
percent (1.5 on the adjustment dial). At this setting, a

0.1 bar (1.8 psig) input pressure causes a 12 psig

11

2506 Series Receiver/Controllers

Instruction Manual

Form 1041

November 2005

output pressure change. Operate the
receiver/controller with the proportional band setting
as small as possible.

4. Provide an input pressure equal to the output
pressure of the transmitter at a value desired or
halfway between the transmitter output range. For
example, on a receiver/controller, if the desired
control point is halfway between the ends of the
displacer, provide an input of 0.6 bar (9 psig) which
is halfway between 0.2 and 1 bar (3 and 15 psig)
transmitter output range.

5. Set the output pressure adjustment to give a
controller output that is halfway between its output
range.

6. Vary the input pressure to be sure the full
controller output pressure range is produced within
the specified input pressure range.

7. Lock the output pressure adjustment and connect
the receiver/controller to the final control element.

8. If the proportional band setting is too narrow,
causing instability, widen the proportional band just
enough to stabilize control. After making this
adjustment, it may be necessary to reset the output
pressure slightly to produce the proper control
range.

D For the Type 2516 receiver/controller:

9. Set the proportional band adjustment dial at 0
percent (minimum proportional band).

10. Set the reset adjustment to the fastest speed
(0.005 minutes-per-repeat).

11. Provide an input pressure equal to the output
pressure of the transmitter at a value desired or
halfway between the transmitter output range. For
example, on a receiver/controller, if the desired
control point is halfway between the ends of the
displacer, provide an input of 0.6 bar (9 psig) which
is halfway between 0.2 and 1 bar (3 and 15 psig)
transmitter output range.

12. Adjust the output pressure dial to give a
controller output somewhere within the output range
of the receiver/controller.

13. Lock the output pressure dial and connect to the
final control element.

14. If the proportional band is too narrow causing
instability, widen the proportional band or slow the
reset just enough to stabilize control.

Adjustments

To adjust the receiver/controller, open the cover and
locate the appropriate adjustment. See figures 14,
15, and 16 for the location of adjustments.

Set Point Adjustment

To adjust the level set point, loosen the knurled knob
and rotate the knob around the INCREASE
OUTPUT PRESSURE or RAISE LEVEL dial. To
raise fluid or interface level or increase density,
rotate the knob in the direction of the arrow.

To lower level or decrease density, rotate the knob
in the opposite direction. The INCREASE OUTPUT
PRESSURE or RAISE LEVEL dial is graduated (in
percent) to show approximate indications of the
receiver/controller set point. When making
adjustments, do not rely only on the dial setting.
Monitor the process fluid level to be sure the
receiver/controller attains the desired set point.

For differential gap receiver/controllers, the level
setting adjustment determines the location of the
gap within the range of the sensing element.

Remote Set Point Adjustment

On a receiver/controller with remote set point
adjustment capability, adjust the set point by
changing the pressure to the remote set point
connection. Increase the remote set point signal
pressure to decrease the receiver/controller set point
(for a direct acting receiver/controller) or increase
the receiver/controller set point (for a reverse acting
receiver/controller).

Proportional Band Adjustment

For proportional and proportional-plus-reset
receiver/controllers, the proportional band
adjustment determines the amount of change in the
input pressure required to change the controller
output signal from one limit of the output signal
range to the other limit (without the effect of reset
action).

Proportional band is expressed as a percent of the
sensing element range. That is, with a proportional
band of 100 percent, an input pressure change
equal to the sensing element span would change the
controller output from one limit to the other. With a
proportional band of 50 percent, an input pressure
change equal to one half the sensing element range

12

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

would change the controller output from one limit to
the other.

The proportional valve dial is graduated from 0 to 10.
A setting of 10 on the dial represents a proportional
band of 100 percent; 5 represents a proportional
band of 50 percent.

The receiver/controller is designed for a maximum
proportional band of 200 percent. The effective band
is determined by the location of the adjustable
nozzle assembly (key 17, figure 14) in the slot in the
level set arm (key 28). Most applications require a
maximum band of 100 percent so, at the factory, a
receiver/controller unit is set to the 100 percent
value. This setting places the nozzle at a point that is
halfway between the bellows assemblies. To adjust
the proportional band, rotate the adjustment
counterclockwise to broaden the setting. Rotate the
adjustment clockwise to narrow the setting.

In some applications, a 200 percent proportional
band range may be required. To obtain the 200
percent range, move the nozzle assembly to the
extreme right end of the slot in the level set arm.

The factory sets this valve to relieve when the
differential pressure between the proportional and
reset bellows reaches 5 psi. To set the valve to
relieve when the differential pressure is as low as 2
psig, turn the adjustment screw clockwise. To set the
valve to relieve when the differential pressure is as
high as 7 psig, turn the adjustment screw
counterclockwise. The minimum differential setting
yields the minimum differential set point overshoot
during startup.

Depending on the characteristics of the process, the
anti-reset windup valve can be positioned so that the
arrow on the case points to the letters RE or, to the
letter P on the back of the manifold. If the arrow
points to P, the valve opens when receiver/controller
output pressure rises. If the arrow points to RE, the
valve opens when receiver/controller output
pressure falls.

Calibration

WARNING

For differential gap receiver/controllers, the
proportional band adjustment determines the width
of the differential gap. This is the difference between
the input pressures at which the controller output
switches from zero to full supply pressure and back
to zero.

Reset Adjustment
(Type 2516 Receiver/Controller Only)

On proportional-plus-reset receiver/controllers, the
reset adjustment determines the time in minutes
required for the reset action to produce a change in
output pressure equal to the change that has
occurred due to proportional band action.

To adjust the reset action, rotate the adjustment
clockwise to decrease, or counterclockwise to
increase the minutes per repeat. Increasing the
minutes per repeat provides a slower reset action.

Anti-Reset Windup Valve Adjustment
(Type 2516F Receiver/Controller Only)

The anti-reset windup valve provides differential
pressure relief. Its adjustment control extends from
the back of the receiver/controller case (figure 16).

The following calibration procedures
require taking the controller out of
service. To avoid personal injury and
property damage caused by an
uncontrolled process, provide some
temporary means of control for the
process before taking the
receiver/controller out of service. Also
refer to the Warning at the beginning
of the Maintenance section.

See figure 14 for key number and adjustment
locations.

When performing the following calibration
procedures, open loop conditions must exist and
make provisions to monitor the output pressure. One
way to obtain an open loop is to disconnect the
controller output signal line and install a pressure
gauge.

Note

When calibrating a combined
controller arrangement such as the
Type 2500 with the Type 2506 or 2516
(figure 9), calibrate the Type 2500
controller/transmitter first.

13

2506 Series Receiver/Controllers

Instruction Manual

Form 1041

November 2005

For a direct action receiver/controller:

1. Adjust the INCREASE OUTPUT PRESSURE
adjustment to mid-range on the scale.

2. Turn the proportional band adjustment to 100
percent of the scale range.

3. For Type 2516 only, turn the reset valve
adjustment fully clockwise.

4. Adjust the input pressure to 0.6 bar (9 psig) for a

0.2 to 1 bar (3 to 15 psig) or 1.2 bar (18 psig) for a

0.4 to 2 bar (6 to 30 psig) receiver/controller.

5. For Type 2516 only, turn the reset valve
adjustment fully counterclockwise (to the CLOSED
position). This locks 0.6 bar (9 psig) or 1.2 bar (18
psig) in the reset bellows.

6. If the output pressure is 0.6 bar (9 psig) for a 0.2
to 1 bar (3 to 15 psig) or 1.2 bar (18 psig) for a 0.4 to
2 bar (6 to 30 psig) receiver/controller, go to step 8.
If not, continue with step 7.

7. If the output pressure span is too low, move the
nozzle down towards the flapper, if output pressure
is too high, move the nozzle up. Continue by trial
and error until the desired setting is obtained.

TRANSMITTER INPUT

SENSING BELLOWS

RESTRICTION

SUPPLY

SUPPLY PRESSURE

RELAY LOADING PRESSURE

TRANSMITTER INPUT

OUTPUT PRESSURE

BD2388-F
A3849 / IL

Figure 12. Type 2506 Multi-Trol

Receiver/Controller Schematic

REVERSING SWITCH

BELLOWS VENT OR REMOTE
SETPOINT CONNECTION

NOZZLE
BEAM/FLAPPER
ASSEMBLY

VENT

RELAY INNER
VALV E

OUTPUT PRESSURE
TO CONTROL VALVE

RELAY BLEED PRESSURE

PROPORTIONAL PRESSURE

®

Direct Action

PROPORTIONAL
BELLOWS

8. Adjust the input pressure to 1 bar (15 psig) for a

0.2 to 1 bar (3 to 15 psig) or 2 bar (30 psig) for a 0.4
to 2 bar (6 to 30 psig) receiver/controller.

9. The output pressure should be 1 bar (15 psig) for
a 0.2 to 1 bar (3 to 15 psig) or 2 bar (30 psig) for a

0.4 to 2 bar (6 to 30 psig) receiver/controller. If
output pressure is within application tolerance,
proceed to step 12. If not, continue with step 10.

10. If the output pressure span is narrow, move the
nozzle slightly to the left or, if the output pressure
span is too wide, move it to the right and repeat
steps 4 and 6 through 10.

11. Repeat the steps until the receiver/controller is
within application requirements.

12. Reconnect the receiver/controller to the control
loop and see the Adjustment section.

Principle of Operation

The 2506 Series uses a basic pressure balance
relay system (figure 12). The relay is connected so
that supply pressure is fed to the inlet side of the
relay valve and the fixed restriction. From this
restriction, the air pressure bleeds into the relay
chamber on one side of the large diaphragm and
also to the nozzle. As long as there is no pressure
change on either diaphragm, the relay valve remains
in equilibrium with both inlet and exhaust ends
closed. The area ratio of the large diaphragm to the
small diaphragm is 3 to 1. A 12 psi pressure change
on the small diaphragm is balanced by a 4 psi
change in the large diaphragm.

The following descriptions show how the relay works
with the standard proportional,
proportional-plus-reset, and proportional-plus-reset
with anti-reset windup receiver/controllers.

14

Instruction Manual

Form 1041
November 2005

TRANSMITTER INPUT

REMOTE SETPOINT
BELLOWS

REVERSING SWITCH

BELLOWS VENT OR REMOTE
SETPOINT CONNECTION

PROPORTIONAL BELLOWS

2506 Series Receiver/Controllers

RESET RELIEF
VALVE SPRING

BEAM/FLAPPER
ASSEMBLY

ADJUSTING
SCREW

SENSING BELLOWS

RESTRICTION

SUPPLY

TYPE 2516 RECEIVER/CONTROLLER

SUPPLY PRESSURE

RELAY LOADING PRESSURE

TRANSMITTER INPUT

B2116 / IL

BEAM/
FLAPPER
ASSEMBLY

OUTPUT PRESSURE
TO CONTROL VALVE

OUTPUT PRESSURE

RELAY BLEED PRESSURE

PROPORTIONAL
VALV E

Figure 13. Type 2516 and 2516F Multi-Trol®Direct Action Receiver-Controller Schematic

Type 2506 Receiver/Controllers

See figure 12.

As long as the process level remains constant, the
transmitter input pressure to the receiver/controller
remains constant. Inside the receiver/controller, the
bellows beam/flapper assembly remains in a
steady-state position.

RESET
BELLOWS

RESET
BELLOWS

RESET
VALV E

OUTPUT
PRESSURE

PROPORTIONAL PRESSURE

RESET PRESSURE

A decrease in transmitter input pressure decreases
the pressure in the input bellows assembly by
moving the beam away from the nozzle. This allows
the supply pressure to bleed through the nozzle
faster than it can enter through the fixed restriction in
the relay. The relay valve opens, exhausting the
output pressure which vent through the relay
exhaust port. This action decreases output pressure
to the control valve.

RESET
VALV E

PROPORTIONAL
VALV E

TYPE 2516F RECEIVER/CONTROLLER

RELIEF VALVE
DIAPHRAGM

DIFFERENTIAL
RELIEF VALVE

The position of the bellows beam allows the supply
pressure to bleed through the nozzle as fast as it
enters the relay through the fixed restriction. A
change in transmitter input pressure repositions the
beam/flapper assembly with respect to the nozzle.

On a direct action receiver/controller, an increase in
transmitter input pressure causes a pressure
increase in the sensing bellows assembly, tending to
push the beam toward the nozzle. This restricts the
escape of supply pressure through the nozzle, thus
increasing the pressure on the large diaphragm in
the relay. This opens the relay valve to the supply
pressure allowing an increase in output pressure to
the control valve.

Type 2516, 2516F
Receiver/Controllers

The action of a proportional-plus-reset controller
(figure 13) is similar to that of a proportional
controller except that feedback from the controller
output pressure is piped to a reset bellows as well as
to the proportional bellows.

Users can adjust the reset valve on the Type 2516
and 2516F to channel some or all of the proportional
pressure into the reset bellows that opposes the
proportional bellows action. This arrangement
automatically reduces the effect of any proportional
overcorrection by a set amount per time interval, as
long as there is a deviation from the control point.

15

2506 Series Receiver/Controllers

Instruction Manual

Form 1041

November 2005

The Type 2516F receiver/controller also features an
anti-reset windup valve. This valve provides
differential pressure relief to prevent proportional
pressure from exceeding reset pressure by more
than a set value. The proportional valve output
pressure registers on one side of the diaphragm
chamber and the reset valve output pressure
registers on the other side diaphragm. A sudden
increase in the output pressure causes a rapid
pressure increase in the proportional bellows and in
the proportional side of the diaphragm chamber. If
the diaphragm pressure of the relief valve exceeds
that of the spring side by the amount of the relief
pressure setting, the relief diaphragm moves off the
orifice in the differential relief valve. This allows the
pressure on the proportional side of the diaphragm
to bleed into the reset system. This action provides
quick relief of excessive proportional pressure and
reduces the time required by the system to return to
the control point. A user can reverse the differential
relief action to relieve on decrease output pressure.

Maintenance

Receiver/controller parts are subject to normal wear
and may require inspection or replacement. The
frequency of inspection and parts replacement
depends upon the severity of the service conditions.
When inspection or repairs are needed, disassemble
only those parts necessary to accomplish the job.

Select the appropriate maintenance procedures and
perform the appropriate steps. Each procedure
requires that supply pressure and process pressure
be shut off before beginning maintenance.

any maintenance operations to avoid
personal injury.

D Provide some temporary means
of controlling the process before
taking the receiver/controller out of
service.

D Release any trapped pressure
from the controller and vent supply
pressure before disassembly.

D Check with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.

Changing Controller Action

See figure 14 for key number locations, unless
otherwise directed.

Note

Do not switch the Type 2516
receiver/controller to snap (S) action.

To change controller action, reposition one or both
switch plates (key 132), which are mounted on the
left or right bellows assemblies (key 134 or 133
respectively). When either switch plate (key 132) is
removed, the raised letters D, R, S, and P are visible
on the bellows frame located under the switch plate
(figure 14).

These letters correspond to: direct (D), reverse (R),
snap (S), and proportional (P) control action. To
obtain the type of control desired, position the switch
plates so that the proper letter appears in the cut-out
corner, as explained below:

Establish a maintenance cycle to regularly clean the
vents (figure 3). Also, establish a maintenance cycle
to clear the relay orifice (key 88, not shown) by
pushing in the plunger of the core assembly (key

89).

WARNING

The following maintenance procedures
require taking the controller out of
service. To avoid personal injury and
property damage caused by an
uncontrolled process:

D Always wear protective clothing,

gloves, and eyewear when performing

16

D The bellows assembly on the left provides
either direct or reverse action. The
receiver/controller (Type 2506 or 2516) can be
changed between direct and reverse action by
repositioning the switch plate (key 132) on the left.
Direct action (D) is when increasing transmitter input
pressure increases receiver/controller output
pressure. To obtain direct action, position the switch
plate so the D is visible. Reverse action (R) is when
decreasing transmitter input pressure increases
receiver/controller output pressure. To obtain
reverse action, position the switch plate so the R is
visible.

D The bellows assembly on the right provides
either proportional (P) or snap (S) action depending

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

on the switch plate position. For all types of
receiver/controllers, to obtain proportional action,
position the switch plate so the P is visible. For Type
2506 receiver/controllers, to obtain snap action,
position the switch plate so the S is visible.

Troubleshooting

As an aid to troubleshooting, see table 4 for a listing
of some common operating faults, their probable
cause, and suggested procedures for correcting the
faults.

Testing Relay Deadband

1. Replace the PROPORTIONAL BAND adjustment
assembly with a 1/8-inch NPT pipe plug according to
the sections for changing proportional, reset, or
anti-reset windup valves.

2. Turn on the supply pressure and set it to 1.4 bar
or 2.4 bar (20 or 35 psig) according to supply
pressure requirements of the receiver/controllers.

3. By changing the process variable and adjusting
the INCREASE OUTPUT PRESSURE control, set
the output pressure to 15 or 30 psig. While
monitoring the output pressure, slowly change the
process until an output pressure change just begins.
Record the value of the process variable at this
detection point.

4. Change the process variable in the opposite
direction until another output pressure change just
begins. Again, record the value of the process
variable. If the difference between the two values
(the deadband) is more than 0.2 percent of the
maximum displacer length, the relay must be
repaired or replaced.

5. See the relay removal and replacement
procedures and, if necessary, the relay disassembly
and assembly procedures if the relay is to be
repaired.

6. Turn off the supply pressure, remove the pipe
plug, and install the PROPORTIONAL BAND
adjustment assembly.

Replacing Receiver/Controller Parts

See figure 14 for key number locations, unless
otherwise indicated.

Bellows Replacement

Use the following bellows replacement procedure to
replace defective bellows or change the output
signal range.

Removal

1. Remove the relay tubing assembly (key 11), the
INCREASE OUTPUT PRESSURE plate (key 35),
and the attached restriction plug orifice assembly
(key 11).

2. Take out the four bellows screws (key 96). These
are special screws with air passages in them so, be
careful not to lose them.

3. Compress the bellows (both are key 65) slightly
and slip them out of the bellows frame (keys 133 or

134).

4. Unscrew the bellows from the beam (key 59). A
gasket (key 79) fits between the end of the bellows
and the bellows frame.

5. Inspect each bellows and gasket and, if
necessary, replace them.

Replacement

1. First install the bellows gasket (key 79), then
install each bellows (key 59) by screwing it onto the
beam (key 59).

2. Compress the bellows slightly and slip them into
the bellows frame (key 133 or 134).

17

2506 Series Receiver/Controllers

Table 4.Troubleshooting Chart

Fault Possible Cause Check Correction

1. Process wanders or cycles
around setpoint.

Note: 1.2 is for Type 2500 and
2506/16 combination.

2. Receiver/controller
controlling off setpoint or
switching point.

3. Receiver/controller cannot
obtain full output range.

4. Receiver/controller remains
at full or zero output pressure.

3. Secure the screws (key 96) and replace the
tubing.

4. Check all tubing connections and the bellows
screws for leaks. Tighten as necessary and proceed
to the Calibration section.

1.1 Proportional band or specific
gravity adjustment incorrect, or
improperly tuned control loop.

1.2 Input signal varying to the Type
2506/16.

1.3 Supply pressure varying, or
incorrect supply pressure setting.

1.4 Relay malfunction. 1.4 Check for relay malfunction by

2.1 Supply pressure not set
correctly.

2.2 Leak in the receiver/controller
loop.

3.1 Supply pressure not set
correctly.

3.2 Nozzle adjustment. 3.2 Insure the nozzle is not loose. 3.2 Perform calibration procedures.

3.3 Relay malfunction. 3.3 Check for relay malfunction by

3.4 Leaking controller/transmitter
loop.

4.1 Supply or output pressure
gauge malfunction.

4.2 Flapper adjustment. 4.2 Insure the flapper is not loose on

4.3 Relay malfunction. 4.3 Check for relay malfunction by

1.1 Insure that the prestartup
procedures are completed correctly.
Tune control loop.

1.2 Use a pressure gauge to monitor
input stability.

1.3 Use input pressure gauge to
monitor stability. Make sure regulator
supply pressure is within limits.

using the testing relay deadband
procedure.

2.1 Make sure regulator supply
pressure is set correctly. Make sure
regulator supply pressure is within
limits.

2.2 Use soap and water to check for
internal and external leaks.

3.1 Make sure supply pressure is
set correctly. Make sure regulator
supply pressure is within limits.

using the testing relay deadband
procedure.

3.4 Use soap and water to check for
internal and external leaks.

4.1 Insure the pressure gauges are
registering correctly.

the torque tube shaft. Insure the
flapper is centered on the nozzle.

using the testing relay deadband
procedure.

Instruction Manual

Form 1041

November 2005

1.1 If stable control cannot be
attained, and all other elements are
functionally correct, examine other
possible causes related to the
controller/transmitter.

1.2 Apply stable input pressure
source. Tune the 2500
controller/transmitter.

1.3 Apply correct supply pressure. It is
recommended to use one regulator
per instrument.

1.4 Depress plunger to clean out the
fixed restriction. Replace relay using
the procedure in the maintenance
section.

2.1 Reset the regulator pressure.
If the problem recurs, replace or
rebuild the regulator. Provide a
regulator input pressure within
regulator limits.

2.2 Replace or repair leaking parts as
necessary.

3.1 Reset the regulator pressure.
If problem recurs, replace or rebuild
the regulator. Provide a regulator input
pressure within regulator limits.

3.3 Depress plunger to clean out the
fixed restriction. Replace or repair
relay using the procedure in the
maintenance section.

3.4 Replace or repair leaking parts as
necessary.

4.1 Replace pressure gauges.
Use corrective action given for section
3 of this table.

4.2 Replace or tighten flapper
assembly as necessary and/or center
flapper on nozzle.

4.3 Depress plunger to clean out the
fixed restriction. Replace or repair
relay using the procedure in the
maintenance section.

Removal

1. Disconnect the tubing (key 11) from the relay.

2. Remove two relay mounting screws, the relay,
and the relay gasket (keys 43, 34, and 22).

5. If a bellows assembly (key 65) with a different
range is installed, replace the gauges (key 20 or

135) with those with an appropriate measurement
capability.

Changing the Relay

Remove the relay to replace it.

18

Replacement

1. Install a new gasket (key 22), the replacement
relay (key 34), and secure with two mounting screws
(key 43).

2. Connect the tubing (key 11) to the relay.

3. See the testing relay deadband procedures in this
section.

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

4. If the deadband is within tolerance, see the
Calibration section.

Changing Proportional or Reset Valve

1. Disconnect the appropriate tubing(s) from the
proportional or reset valve.

2. Removing the valve assembly:

a. Remove the proportional valve assembly by
unscrewing it from the relay base. Install the
replacement assembly.

b. Remove the reset valve assembly by
unscrewing the two machine screws (key 182,
not shown) located behind the reset valve on the
back of the case. Install the replacement
assembly.

Parts Ordering

Whenever corresponding with your Fisher sales
office, include the receiver/controller type number
and the serial number. The serial number can be
found on the nameplate. When ordering replacement
parts, also state the complete 11-character part
number of each part required as found in the
following parts list.

Note

Use only genuine Fisher replacement
parts. Components that are not
supplied by Fisher should not, under
any circumstances be used in any
Fisher instrument. The use of
components not manufacture by
Fisher will void your warranty, might
adversely affect the performance of
the instrument, and might jeopardize
worker and workplace safety.

Note

Neither Emerson, Emerson Process
Management, Fisher, 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

Key Description Part Number

Receiver/Controller Repair Kits

Contains keys 17, 19, 21, 24, 38, and 45

Standard Temperature R2506X00L12
High Temperature R2506X00H12

Relay Replacement Kit

Contains key 22 (43 for Type 2500 and 2502)
and the relay assembly

Standard Temperature RRELAYX0L22
High Temperature RRELAYX0H22

Parts List

Receiver/Controller Common Parts
(figure 14)

Note

Case Vent Options

D The standard receiver/controller case (key 1,
p/n 4D396044012) features an open case vent. The
case is not drilled for the optional tapped vent.

D All receiver/controller cases feature an open
bellows vent/remote set point connection. A
external vent assembly (key 128) is recommended if
the remote set point connection is not made.

D The optional receiver/controller case (key 1,
p/n 2E355544012) features a tapped vent for
applications requiring a remote vent line. The
standard case vent is sealed w/a machine screw. An
external connection (air vent plug, key 137)
w/gasket (key 138) and hex nut (key 139) can be
added to the tapped vent.

1 Controller case (controller back), die cast aluminum

for Types 2506, 2516

Std: W/open case vent (no optional

tapped vent for vent line) 4D396044012

Optional: W/tapped vent for vent line

(case vent sealed with machine screw) 2E355544012

Additional option: Case pressure-tested

to 0.1 bar (2 psig). Contact your

Fisher sales office to order pressure testing.

Label (key 179) is added to the case. 2E355544012

1 Controller case (controller back), die cast Aluminum

for Type 2516F, w/open case vent (no optional

tapped vent for vent line) 15A7611X012

2 Controller cover, die cast 4D396144012

19

2506 Series Receiver/Controllers

Instruction Manual

Form 1041

November 2005

Key Description Part Number

3 Door handle, steel pl 1C897225082

4 Door handle shaft, stainless steel

(not shown) 1C898414012
5 Machine screw, steel pl 1C895828982
6 Washer, stainless steel 1C897036032
7 Door hook, steel pl 1C897125082

8 Elastic stop nut, steel pl 1C895928992
9 Hinge pin, stainless steel, (2 req’d) 1C8991X0022

10* Compensator tubing assembly, proportional,

stainless steel 1K674838072

11 Relay tubing assembly,

Type 2506 and 2516, stainless steel 1K674738072

17 Orifice cap, brass 0X0843X0012

Note

Gauges

See key 135 for input (instrument) gauge or pipe
plug.

20* Output (diaphragm) gauge

Triple scale

0 to 30 psig/0-0.2 MPa/0-2 bar 11B8582X012
0 to 60 psig/0-0.4 MPa/0-4 bar 11B8582X022

Dual scale

0 to 30 psig/0-2 kg/cm
21* Cover gasket, nitrile 1D398706062
22* Relay gasket,

Standard temperature, neoprene 1C897403012
High temperature, silicone 1N873804142

23 Relay base, die cast zinc 2D396244012
24* Relay base gasket (not shown)

Standard temperature, neoprene 1D396703012

High temperature, silicone rubber 1N874204142
25 Flexure strip, stainless steel 1C897836012
26 Flexure strip nut, steel (2 req’d) 1C897525082

27 Flexure strip base, steel 1C897725082
28 Level set arm, steel 1D398025082
29 Latch pin, steel 1C898928982
31 Nut, brass (2 req’d) 1A9463X0012

32 Flapper, Invar 1D398341132
34 Relay assembly

Standard temperature 22B0463X012

High temperature 22B0462X012
35 Level adjustment assembly 10A8939X0A2

2

11B8582X042

Key Description Part Number

35C Level adjustment dial (not shown), aluminum

Std, clockwise adjustment 1D397411032
Optional, counter-clockwise adjustment

For use w/2500 controller 1E235318992

36 Proportional band assembly 10A9122X012
41 Screw, steel pl (2 req’d) 1C941928982
42 Machine screw, steel pl (2 req’d) 1A684928992
43 Machine screw, steel pl (2 req’d) 1D713224192

44 Machine screw, steel pl (6 req’d) 1A573328982
46 Machine screw, stainless steel (4 req’d) 1C899028982
47 Spring (not shown) 1J423437022
56 Bellows stud, brass (2 req’d) (not shown) 1D397814012

59 Bellows beam, steel pl 1D397925082

Note

Bellows Assembly

Select specific bellows assembly by application
pressure range.

65* Bellows assembly

Brass

Range:

0.2 to 1 bar (3 to 15 psig)
Gray color code 14A5726X072

0.4 to 2 bar (6 to 30 psig)
Green color code 14A5726X082

Stainless steel

Range:

0.2 to 1 bar (3 to 15 psig)
Gray color code 14A5726X102

0.4 to 2 bar (6 to 30 psig)
Green color code 14A5726X092

75 Reset tubing assembly

Type 2516 and 2516F, copper 1D3988000A2
Type 2516, stainless steel 1K674638072

77* Bellows frame gasket (2 req’d) (not shown)

Standard temperature, neoprene 1D396803012
High temperature, silicone 1N874304142

79* Bellows gasket (4 req’d)

Standard temperature, neoprene 1D397003012
High temperature, silicone 1N873604142

91 Reset restriction valve assembly

Type 2516

Standard temperature 19A4357X012
High temperature 19A4357X022

Type 2516F

Standard temperature 19A4359X012

20

*Recommended spare parts

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

30A8956-B

USE W/THREADED

CASE VENT

VIEW A

WITH SWITCH

PLATE REMOVED

RESET VALVE
ADJUSTMENT

TYPE 2506

SETPOINT ADJUSTMENT

PROPORTIONAL
BAND VALVE
ADJUSTMENT

C0670-2 / IL

Figure 14. Types 2506 and 2516 Receiver-Controller Assemblies

TYPE 2516

21

2506 Series Receiver/Controllers

Key Description Part Number

96 Bellows screw (4 req’d)

brass 1D3976X0012
stainless steel 1D3976X0022

128 External vent assembly (not shown)

for bellows vent opening when remote
set point connection is not made
plastic/stainless steel 27A5516X012

129* Switch plate gasket (2 req’d) (not shown)

Standard temperature, nitrile 1D397103012

High temperature, silicone 1N874104142
130 Machine screw, steel pl 1B275128992
132 Switch plate, die cast zinc (2 req’d) 1D396444012
133 Right bellows frame, die cast zinc 1D396544012

134 Left bellows frame, die cast zinc 2D396344012

Note

Gauges

See key 20 for output (diaphragm) gauge.

135 Input (instrument) gauge

Triple Scale

0 to 30 psig/0-0.2 MPa/0-2 bar 11B8582X012
0 to 60 psig/0-0.4 MPa/0-4 bar 11B8582X022

Dual Scale

0 to 30 psig/0-2 kg/cm

135 Pipe plug (not shown), brass

Use instead of input gauge 1A6495X0052
136 Machine screw, steel pl (18 req’d) 1B783928982
137 Air vent plug, brass

For use w/optional case (key 1) featuring

tapped vent 1C442414012

138 Vent plug gasket, neoprene

For use w/key 137 1C442704082
139 Hex nut, steel pl

For use w/key 137 1A352424112
179 Label, paper

For case (back), if pressure-tested.

See key 1 12A9842X012

2

11B8582X042

21A6447-A / DOC

Instruction Manual

Form 1041

November 2005

ADJUSTMENT SCREW

SECTION A-A

186 Anti-reset windup valve assembly

See following list for individual parts
215 Nameplate 12B6338X0A2

Anti-Reset Windup Valve for
Type 2516F Only (figure 15)

192 Lower valve body assembly 1V7410X0012
193* O-ring, nitrile (3 req’d) 1D134606992
194 Diaphragm assembly, rubber 1V7408X0012
195 Spring, steel 1V740627012

196 Upper body half, aluminum 2V740208012
197 Adjustment screw, brass 1V740414022
198 Spring seat, aluminum 1V740509022
199 Machine screw, stainless steel (4 req’d) 1N3336X0012

200 Machine screw, stainless steel (2 req’d) 1V7451X0012

22

Figure 15. Type 2516F Anti-Reset Windup Valve Assembly

Type 2516F Reset and Anti-Reset
Windup Valve Assembly (figure 16)

181 Relief tubing assembly 13A2077X012
182 Machine screw, steel pl (2 req’d) 1A329428992
183 O-ring, Nitrile 1C853806992
184 Manifold, aluminum 25A7606X012

185 Manifold nipple, aluminum 13A2074X012
186 Differential relief valve 21A6447X0A2

*Recommended spare parts

Instruction Manual

Form 1041
November 2005

2506 Series Receiver/Controllers

RESET VALVE
ADJUSTMENT

RECEIVER/
CONTROLLER
BACK

15A7608-B
A3841 / IL

Figure 16. Type 2516F Reset and Anti-Reset Windup Valve Assembly

Key Description Part Number

Mounting Parts

Yoke Mounting (figures 3 and 4)

39 Cap screw (2 req’d) 1A553424052
48 Cap screw (2 req’d)

For Types 513, 657, 667 1C631224052

For Type 480 1A352624052

78 Spacer (2 req’d)

For Type 480 1F906724092
164 Mounting bracket 1C221825022
174 Spacer Spool (2 req’d) 1C559024092

Regulator mounting. To upper yoke boss

85 Cap screw (2 req’d) T14109T0012

Wall Mounting (figure 6)

ANTI-RESET WINDUP ADJUSTMENT

Key Description Part Number

Regulator mounting

165 Nipple, to join regulator to

receiver/controller supply
connection 1C210026232

178 Street Elbow, for supply connection

to regulator 1A913221992

Case Mounting (figure 7)

39 Cap screw (2 req’d) 1A368324052
48 Cap screw (2 req’d) 1C631224052

164 Mounting bracket, steel pl 1F401225072

Regulator mounting. To actuator case (not shown)

39 Cap screws, (2 req’d) 1K747624052
78 Spacer, (2 req’d) 1J830724092
83 Lock washer (2 req’d) 1E830628992

164 Mounting plate, steel pl 1C221825022

174 Spacer, (2 req’d) 1L200624092

40 Hex nut (2 req’d) 1E944024112
84 Lock washer (2 req’d) 1C225728982
85 Cap screw (2 req’d) T14109T0012

176 Cap screw (2 req’d) 1A353024052

177 Bracket 1F401225072

23

2506 Series Receiver/Controllers

Instruction Manual

Form 1041

November 2005

Key Description Part Number

Pipestand Mounting (figure 8)

39 Cap screw, (2 req’d) 1B762424052
78 Spacer, (2 req’d) 1J958824092
83 Lock washer (2 req’d) 1C225728982

164 Mounting plate, steel pl 3R228725022

175 Pipe clamp (2 req’d)

(includes 2 hex nuts for each clamp) 1P427028982

Regulator mounting. To mounting plate (not shown)

40 Hex nut (2 req’d) 1E944024112
84 Lock washer (2 req’d) 1C225728982
85 Cap screw (2 req’d) T14109T0012

Key Description Part Number

2500 Series Controller/Transmitter and
2506 Series Receiver/Controller
Mounting (figure 9)

39 Cap screw (4 req’d) 1C631224052
83 Lock washer (4 req’d) 1E830628992

164 Mounting plate, steel pl 1C221825022

Regulator mounting on Types 2506, 2516. W/separate

supply sources and separate regulators

165 Nipple, to join regulator to receiver/controller

supply connection 1B218826232

Regulator mounting on Types 2506, 2516. W/common
supply source and separate regulators

165 Nipple, to join regulator to receiver/controller

supply connection 1B218826232

166 Nipple, to join tee (key 167) to

controller/transmitter regulator 1C488226232

167 Tee (common supply connection at

controller/transmitter regulator)
172 Connector to tee (key 167)
173 Street Elbow, for receiver/controller

regulator supply connection

Multi-Trol, Level-Trol and Fisher are marks owned by Fisher Controls International LLC, a member of the Emerson Process Management business
division of Emerson Electric Co. Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the
property of their respective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are
not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability.
We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

Neither Emerson, Emerson Process Management, Fisher, 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.

Emerson Process Management

Fisher

Marshalltown, Iowa 50158 USA
Cernay 68700 France
Sao Paulo 05424 Brazil
Singapore 128461

www.Fisher.com

24

EFisher Controls International LLC 1978, 2005; All Rights Reserved Printed in USA