Fisher i2P-100 User manual

www.Fisher.com
Fisherri2P-100 Electro‐Pneumatic Transducer
Contents
Introduction 1.................................
Scope of Manual 1.............................
Description 2.................................
Specifications 2...............................
Educational Services 2.........................
Installation 5..................................
Hazardous Area Classifications and Special
Instructions for “Safe Use” and Installation
in Hazardous Locations 7.....................
CSA 7....................................
FM 8.....................................
ATEX 8...................................
IECEx 10..................................
Mounting 11.................................
Pneumatic Connections 11.....................
Supply Pressure Requirements 12............
Diagnostic Connections 13..................
Vent 14..................................
Electrical Connections 14.......................
Operating Information 15........................
Calibration 15................................
Equipment Required 16.....................
Calibration Procedure 16....................
Principle of Operation 17........................
Maintenance 18................................
Troubleshooting 19............................
Converter Module Replacement 20..............
Electronics Module Replacement 20..............
Relay Maintenance 21..........................
Figure 1. Fisher i2P‐100 Electro‐Pneumatic
Transducer
W8710
REPLACEABLE
FILTER WITH
REMOVABLE
ORIFICE
INTEGRAL
PNEUMATIC
RELAY VENT
Parts Ordering 22...............................
Parts List 23...................................
Loop Schematics/Nameplates 26.................
CSA Loop Schematic 26........................
CSA/FM Approvals Nameplate 26................
FM Loop Schematic 27.........................
ATEX/IECEx Approvals Nameplate 27.............
Introduction
Scope of Manual
This instruction manual provides installation, operation, maintenance, and parts ordering information for the Fisher
i2P‐100 transducer (see figure 1).
Refer to separate manuals for instructions covering equipment used with the transducer.
Do not install, operate, or maintain an i2P-100 electro‐pneumatic transducer without being fully trained and qualified
in valve, actuator, and accessory installation, operation and maintenance. To avoid personal injury or property
damage it is important to carefully read, understand, and follow all of the contents of this manual, including all safety
cautions and warnings. If you have any questions about these instructions, contact your Emerson Process
Management sales office.
Instruction Manual
D103198X012
i2P-100 Transducer
July 2014

Instruction Manual
D103198X012
i2P-100 Transducer
July 2014
2
CAUTION
Dropping or rough handling of the transducer can cause damage to the converter module resulting in a shifted output or a
minimum output.
Description
The transducer receives a 4‐20 mA DC input signal and transmits a proportional user field‐configurable pneumatic
output pressure to a final control element. The pneumatic output range are typically 0.2 to 1.0 bar (3 to 15 psig), 0.4
to 2.0 bar (6 to 30 psig), and 0.14 to 2.3 bar (2 to 33 psi). A typical application is in electronic control loops where the
final control element is a control valve assembly that is pneumatically operated. The input signal and output pressure
range of the transducer is indicated on the nameplate, attached to the housing.
Specifications
Specifications for the i2P‐100 transducer are listed in table 1.
WARNING
This product is intended for a specific current range, temperature range and other application specifications. Applying
different current, temperature and other service conditions could result in malfunction of the product, property damage or
personal injury.
Educational Services
For information on available courses for the i2P‐100 electro‐pneumatic transducer, as well as a variety of other
products, contact:
Emerson Process Management
Educational Services, Registration
Phone: [phone] or [phone]
e‐mail: [email protected]
http://www.emersonprocess.com/education

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Table 1. Specifications
Input Signal
Available as standard with 4‐20 mA.
User configurable by dip switch for split ranging, see
table below.
Output Signal(1)
Available as standard 0.2 to 1.0 bar (3 to 15 psig), 0.4
to 2.0 bar (6 to 30 psig), or 0.14 to 2.3 bar
(2 to 33 psig). User configurable by dip switch
selection and zero and span potentiometer
adjustment, see table below.
Input Signal Output Pressure
Bar psig
4‐20 mA DC
0.2 to 1.0 3 to 15
0.4 to 2.0 6 to 30
0.14 to 2.3 2 to 33
4‐12 mA DC 0.2 to 1.0 3 to 15
12‐20 mA DC 0.2 to 1.0 3 to 15
Equivalent Circuit
The i2P‐100 equivalent circuit is a series circuit
consisting of a constant voltage drop (battery) of
approximately 4 VDC and a total resistance of 40
ohms. Input is shunted by two 6.8 V zener diodes (see
figure 9).
Supply Pressure(2)
Recommended: 0.3 bar (5 psi) higher than upper
range limit of output signal
Maximum: 3.4 bar (50 psig)
Medium: Air or Natural Gas
Maximum Steady-State Flow Rate
Refer to tables 3 and 4
Maximum Output Air Capacity(3)
8.0 m3/hr (300 scfh) at 1.4 bar (20 psig) supply
pressure
Performance(4)
Reference Accuracy: ±1.0% of full scale output span;
includes combined effects of hysteresis, linearity, and
deadband
Independent Linearity: ±0.5% of full scale output span
Hysteresis: 0.4% of full scale output span
Frequency Response: Gain is attenuated 3 dB at 3 Hz
with transducer output signal piped to a typical
instrument input
Temperature Effect: ±0.14% per degrees Celsius
(±0.075% per degrees Fahrenheit) of span
Supply Pressure Effect: 0.2% of full scale output span
per psi supply pressure change
Vibration Effect: Less than 1% of full scale output span
when tested to ISA S75.13
Electromagnetic Compatibility
Meets EN 61326‐1 (First Edition)
Immunity—Industrial locations per Table 2 of
EN 61326‐1 Standard. Performance is shown
in table 2 below.
Emissions—Class A
ISM equipment rating: Group 1, Class A
Operating Ambient Temperature Limits(2)
-40 to 85_C (-40 to 185_F)
Electrical Seal
Single sealed device per ANSI/ISA 12.27.01
Electrical Classification
Hazardous Area:
CSA—Intrinsically Safe, Explosion-proof,
Type n, Dust‐Ignition proof
FM—Intrinsically Safe, Explosion-proof,
Type n, Non‐incendive, Dust‐Ignition proof
ATEX—Intrinsically Safe, Flameproof, Type n
IECEx—Intrinsically Safe, Flameproof, Type n
Refer to Hazardous Area Classifications and Special
Instructions for “Safe Use” and Installation in
Hazardous Locations, starting on page 7, for specific
approval information
(continued)

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Table 1. Specifications (continued)
Electrical Housing:
When Remotely Vented No Remote Venting
CSA—Type 4X Encl.
FM—NEMA 4X
ATEX—IP66
IECEx—IP66
CSA—Type 3 Encl.
FM—NEMA 3
ATEX—IP64
IECEx—IP64
Other Classifications/Certifications
GOST‐R—Russian GOST‐R
INMETRO— National Institute of Metrology, Quality,
and Technology (Brazil)
KGS—Korea Gas Safety Corporation (South Korea)
NEPSI— National Supervision and Inspection Centre
for Explosion Protection and Safety of
Instrumentation (China)
RTN—Russian Rostekhnadzor
Contact your Emerson Process Management sales
office for classification/certification specific
information
Connections
Supply and Output Pressure: 1/4 NPT internal
connection
Vent: 1/4 NPT internal
Electrical: Standard 1/2 NPT
Wire Size: 18 to 22 AWG
Adjustments(1)
Zero and Span: Trim potentiometers (20 turn) for
zero and span adjustments are located under the
housing cap (see figure 10).
Switch: Allows input signal split range and
user‐configurable 0.14 to 2.3 bar (2 to 33 psig)
output.
Mounting Position
JActuator Jpipestand or Jsurface
Approximate Weight (Transducer Only)
2.5 kg (5.5 lbs)
Actuator Stroking Time
See figure 2
Declaration of SEP
Fisher Controls International LLC declares this
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 European
Community Directives.
NOTE: Specialized instrument terms are defined in ANSI/ISA Standard 51.1 - Process Instrument Terminology
1. For other ranges, zero and span adjustments are needed.
2. The pressure and temperature limits in this document and any applicable standard or code limitation should not be exceeded.
3. Normal m3/hr—Normal cubic meters per hour (0_C and 1.01325 bar, absolute). Scfh—Standard cubic feet per hour (60_F and 14.7 psia).
4. Performance values are obtained using a transducer with a 4 to 20 mA DC input signal and a 0.2 to 1.0 bar (3 to 15 psig) output signal at an ambient temperature of 24_C (75_F).
Table 2. EMC Summary Results—Immunity
Port Phenomenon Basic Standard Test Level Performance
Criteria(1)
Enclosure
Electrostatic discharge (ESD) IEC 61000‐4‐2 4kV Contact
8kV Air A
Radiated EM field IEC 61000‐4‐3
80 to 1000 MHz @ 10V/m with 1 kHz AM at 80%
1400 to 2000 MHz @ 3V/m with 1 kHz AM at 80%
2000 to 2700 MHz @ 1V/m with 1 kHz AM at 80%
A
I/O signal/control
Burst (fast transients) IEC 61000‐4‐4 1 kV A
Surge IEC 61000‐4‐5 1 kV (line to ground only, each) A
Conducted RF IEC 61000‐4‐6 150 kHz to 80 MHz at 3 Vrms A
Specification limit = ±1% of span
1. A=No degradation during testing. B = Temporary degradation during testing, but is self‐recovering.

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Table 3. Maximum Steady-State Flow Rate (Air)
SUPPLY PRESSURE OUTPUT PRESSURE STEADY STATE
FLOW RATE(1)
Bar Psi Bar Psi m3/hr Scfh
1.4 20
0.2 - 1.0 3 - 15
0.2 3 0.04 1.5
0.62 9 0.06 2.0
1.0 15 0.07 2.6
2.4 35
0.4 - 2.0 6 - 30
0.4 6 0.05 1.7
1.2 18 0.08 2.9
2 30 0.12 4.1
2.6 38
0.1 - 2.3 2 - 33
0.1 2 0.04 1.5
1.2 17.5 0.08 2.9
2.3 33 0.12 4.3
1. Normal m3/hour - Normal cubic meters per hour (0C and 1.0135 bar, absolute).
Scfh - Standard cubic feet per hour (60F and 14.7psig).
Table 4. Maximum Steady-State Flow Rate
(Natural Gas)
SUPPLY PRESSURE OUTPUT PRESSURE STEADY STATE
FLOW RATE(1,2)
Bar Psi Bar Psi m3/hr Scfh
1.4 20
0.2 - 1.0 3 - 15
0.2 3 0.06 1.95
0.62 9 0.07 2.6
1.0 15 0.1 3.38
2.4 35
0.4 - 2.0 6 - 30
0.4 6 0.6 2.21
1.2 18 0.11 3.77
2 30 0.15 5.33
2.6 38
0.1 - 2.3 2 - 33
0.1 2 0.06 1.94
1.2 17.5 0.11 3.74
2.3 33 0.18 5.55
1. Normal m3/hour - Normal cubic meters per hour (0C and 1.0135 bar, absolute).
Scfh - Standard cubic feet per hour (60F and 14.7psig).
2. Natural gas steady state flow based on natural gas specific gravity of 0.6.
Flow decreases as specific gravity increases.
Figure 2. Output‐Time Relationships for Fisher i2P‐100 Transducer
LOADING
EXHAUSTING
TIME (%)
0 102030405060708090
100
0
10
20
30
40
50
60
70
80
90
100
OUTPUT
A6815
(% OF i2P‐100 OUTPUT SPAN)
Installation
The i2P‐100 transducer has been designed and approved for use with either air or natural gas as the supply medium. If
using natural gas as the pneumatic supply medium, natural gas will be used in the pneumatic output connections of
the transducer to any connected equipment. In normal operation the unit will vent the supply medium into the
surrounding atmosphere unless it is remotely vented. When using natural gas as the supply medium, in a
non‐hazardous location in a confined area, remote venting of the unit is required. Failure to do so could result in
personal injury, property damage, and area re‐classification. For hazardous locations remote venting of the unit may
be required, depending upon the area classification, and as specified by the requirements of local, regional, and
federal codes, rules and regulations. Failure to do so when necessary could result in personal injury, property damage,
and area re‐classification.
Additional information for installation and safe use in hazardous locations can be found in Hazardous Area
Classifications and Special Instructions for “Safe Use” and Installation in Hazardous Locations.

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WARNING
To avoid personal injury or property damage from the sudden release of pressure, air, or natural gas:
D Always wear protective clothing, gloves, and eyewear when performing any installation operations.
D If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section of this
instruction manual.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
WARNING
This unit vents the supply medium into the surrounding atmosphere. When installing this unit in a non‐hazardous
(non‐classified) location in a confined area, with natural gas as the supply medium, you must remotely vent this unit to a
safe location. Failure to do so could result in personal injury or property damage from fire or explosion, and area
re‐classification.
When installing this unit in a hazardous (classified) location remote venting of the unit may be required, depending upon
the area classification, and as specified by the requirements of local, regional, and federal codes, rules and regulations.
Failure to do so when necessary could result in personal injury or property damage from fire or explosion, and area
re‐classification.
Vent line piping should comply with local and regional codes and should be as short as possible with adequate inside
diameter and few bends to reduce case pressure buildup.
When received from the factory, the set screws (key 8), which provide a locking feature for the housing caps (key 2),
are backed off approximately 1 turn. When using the i2P‐100 transducer in explosive atmospheres these set screws
must be fully engaged.
WARNING
When using this unit in explosive atmospheres, the set screws (key 8) must be fully engaged to lock/secure the housing
caps. Failure to fully engage these set screws could result in unauthorized opening of the unit, which may result in personal
injury or property damage caused by fire or explosion.

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Hazardous Area Classifications and Special Instructions for “Safe Use” and
Installation in Hazardous Locations
Certain nameplates may carry more than one approval, and each approval may have unique installation/wiring
requirements and/or conditions of “safe use”. These special instructions for “safe use” are in addition to, and may
override, the standard installation procedures. Special instructions are listed by approval.
Note
This information supplements the nameplate markings affixed to the product.
Always refer to the nameplate itself to identify the appropriate certification.
WARNING
Failure to follow these conditions of “safe use” could result in personal injury or property damage from fire or explosion,
and area re‐classification.
CSA
Intrinsically Safe, Explosion-proof, Type n, Dust‐Ignition proof
No special conditions of safe use.
Refer to table 5 for approval information, figure 15 for the CSA loop schematic and figure 16 for a typical CSA/FM
approval nameplate.
Table 5. Hazardous Area Classifications—CSA (Canada)
Certification Body Certification Obtained Entity Rating Temperature Code Enclosure Rating
CSA
Intrinsically Safe
Ex ia IIC T3/T4/T5 per drawing GE07471
Ex ia Intrinsically Safe
Class I, II, III Division 1 GP A,B,C,D,E,F,G per drawing
GE07471
Vmax = 30 VDC
Imax = 100 mA
Pi = 1.0 W
Ci = 0 uF
Li = 0 uH
T3 (Tamb ≤85°C)
T4 (Tamb ≤81°C)
T5 (Tamb ≤46°C)
CSA Type 4X Encl.*
Explosion-proof
Ex d IIC T5/T6
Class I, Division 1 GP, A,B,C,D T5
- - - T5 (Tamb ≤85°C)
T6 (Tamb ≤75°C) CSA Type 4X Encl.*
Type n
Ex nC IIC T5/T6 - - - T5 (Tamb ≤85°C)
T6 (Tamb ≤75°C) CSA Type 4X Encl.*
Class I, Division 2, GP A,B,C,D T5
Class II, Division 1, GP E,F,G T5
Class II, Division 2 GP F,G T5
Class III
- - - T5 (Tamb ≤85°C) CSA Type 4X Encl.*
*When remotely vented.

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FM
Special Conditions of Use
Intrinsically Safe, Explosion-proof, Type n, Non‐incendive, Dust‐Ignition proof
1. When product is used with natural gas as the pneumatic medium, the maximum working pressure of the natural
gas supply is limited to 50 psi.
2. When product is used with natural gas as the pneumatic medium the product shall be provided with the proper
remote venting, as described on page 14 of this instruction manual.
3. The apparatus enclosure contains aluminum and is considered to constitute a potential risk of ignition by impact or
friction. Care must be taken into account during installation and use to prevent impact or friction.
Refer to table 6 for additional information, figure 17 for the FM loop schematic, and figure 16 for a typical CSA/FM
approval nameplate.
Table 6. Hazardous Area Classifications—FM (United States)
Certification Body Certification Obtained Entity Rating Temperature Code Enclosure Rating
FM
IS Intrinsically Safe
Class I, II, III Division 1 GP A, B,C,D,E,F,G
per drawing GE07470
Class I Zone 0 AEx ia IIC T3/T4/T5
per drawing GE07470
Vmax = 30 VDC
Imax = 100 mA
Pi = 1.0 W
Ci = 0 uF
Li = 0 uH
T3 (Tamb ≤85°C)
T4 (Tamb ≤81°C)
T5 (Tamb ≤46°C)
NEMA 4X*
XP Explosion Proof
Class I, Division 1, GP A,B,C,D T5/T6
Class I Zone 1 AEx d IIC T5/T6
NI Non-incendive
Class I, Division 2, GP A,B,C,D T5/T6
Type n
Class I, Zone 2 AExnC IIC T5/T6
DIP Dust-ignition proof
Class II, III Division 1, GP E,F,G T5/T6
S Suitable for Use
Class II, III Division 2, GP F,G T5/T6
- - - T5 (Tamb ≤85°C)
T6 (Tamb ≤75°C) NEMA 4X*
*When remotely vented
ATEX
All Approvals
All ATEX approved units come with a combined nameplate which carries multiple approvals (intrinsic safety and dust,
flameproof and dust, and Type n and dust), as shown in figure 18. During installation, only one type of protection
method is allowed. The unit shall be marked by the end-user as to which protection method it was installed as and
shall not be changed or utilized in any other manner than was originally marked by the end‐user.
WARNING
For ATEX approvals only, end‐user must select and mark only one protection method upon installation. Once marked it
shall not be changed. Failure to follow these instructions will jeopardize the explosion safety of the transducer, and may
result in personal injury or property damage.

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Special Conditions for Safe Use
Intrinsically Safe
1. Before putting in service, the user shall permanently cross out the areas on the nameplate with the types of
protection that are not applicable (Ex ia IIC T3... T5, KEMA 05ATEX1109 X or Ex nA II T5/T6, KEMA 05ATEX1119) or
mark the selected type of protection. Once determined the type of protection may not be changed.
2. Because the enclosure of the i2P‐100 transducer is made of aluminum, if it is mounted in an area where the use of
category 1 G apparatus is required, it must be installed such, that, even in the event of rare incidents, ignition
sources due to impact and friction sparks are excluded.
3. Ambient temperature range:
-40_C - + 46_C for temperature class T5
-40_C - + 81_C for temperature class T4
-40_C - + 85_C for temperature class T3
Electrical data:
Unit must be installed with appropriate I.S barrier with maximum entity ratings as follows:
Ui = 30 V ; Ii = 100 mA (resistively limited) ; Pi = 1 W ; Ci = 0 nF ; Li = 0 mH
Flameproof
1. Before putting in service, the user shall permanently cross out the areas on the nameplate with the types of
protection that are not applicable (Ex ia IIC T3... T5, KEMA 05ATEX1109 X or Ex nA II T5/T6, KEMA 05ATEX1119) or
mark the selected type of protection. Once determined the type of protection may not be changed.
2. Electrical connections are typically made using either cable or conduit.
D If using a cable connection, the cable entry and closing devices shall be certified in type of protection flameproof
enclosure “d”, suitable for the conditions of use and correctly installed. For ambient temperatures over 70_C,
suitable heat resistant cables and cable glands shall be used.
D If using a rigid conduit connection, a certified sealing device in type of protection flameproof enclosure “d”, such
as a conduit seal with setting compound shall be provided immediately to the entrance of the valve housing. For
ambient temperature over 70_C, suitable heat resistant wiring and setting compound for the conduit seal shall
be used.
Type n
1. Before putting in service, the user shall permanently cross out the areas on the nameplate with the types of
protection that are not applicable (Ex ia IIC T3... T5, KEMA 05ATEX1109 X or Ex nA II T5/T6, KEMA 05ATEX1119) or
mark the selected type of protection. Once determined the type of protection may not be changed.
Refer to table 7 for additional information and figure 18 for a typical ATEX/IECEx approval nameplate.

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Table 7. Hazardous Area Classifications—ATEX
Certificate Certification Obtained Entity Rating Temperature Code Enclosure Rating
ATEX
Intrinsically Safe
II 1 GD
Gas
Ex ia IIC T3/T4/T5
Dust
T95°C (Tamb ≤85°C)
Ui = 30 VDC
Ii = 100 mA
Pi = 1.0 W
Ci = 0 nF
Li = 0 mH
T3 (Tamb ≤85°C)
T4 (Tamb ≤81°C)
T5 (Tamb ≤46°C)
IP66*
Flameproof
II 2 GD
Gas
Ex d IIC T5/T6
Dust
T95°C (Tamb ≤85°C)
- - - T5 (Tamb ≤85°C)
T6 (Tamb ≤75°C) IP66*
Type n
II 3 GD
Gas
Ex nC II T5/T6
Dust
T95°C (Tamb ≤85°C)
- - - T5 (Tamb ≤85°C)
T6 (Tamb ≤75°C) IP66*
*When remotely vented.
IECEx
Standards used for IECEx Certification
IEC60079-0:2011; IEC60079-1:2007; IEC60079-11:2011; IEC60079-15: 2010
Conditions of Certification
Intrinsically Safe, Type n, Flameproof
The Intrinsically Safe version has the following Entity Parameters:
Ui = 30 V ; Ii = 100 mA ; Pi = 1.0 W ; Ci = 0 uF ; Li = 0 uH
Refer to table 8 for additional information and figure 18 for a typical ATEX/IECEx approval nameplate.
Table 8. Hazardous Area Classifications—IECEx
Certificate Certification Obtained Entity Rating Temperature Code Enclosure Rating
IECEx
Intrinsically Safe
Gas
Ex ia IIC T3/T4/T5
Ui = 30 VDC
Ii = 100 mA
Pi = 1.0 W
Ci = 0 uF
Li = 0 uH
T3 (Tamb ≤85°C)
T4 (Tamb ≤81°C)
T5 (Tamb ≤46°C)
IP66*
Flameproof
Gas
Ex d IIC T5/T6
- - - T5 (Tamb ≤85°C)
T6 (Tamb ≤75°C) IP66*
Type n
Gas
Ex nC IIC T5/T6
- - - T5 (Tamb ≤85°C)
T6 (Tamb ≤75°C) IP66*
*When remotely vented.

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Mounting
When a transducer is ordered as part of a control valve assembly, the factory mounts the transducer on the actuator
and connects the necessary tubing, then adjusts the transducer as specified on the order. See figures 3 and 4 for
typical mounting configurations.
Figure 3. Fisher i2P‐100 Electro‐Pneumatic
Transducer Mounted on a Size 30 667 Sliding‐Stem
Actuator
W8723
CONDUIT
CONNECTION
FIELD
TERMINATION AND
ELECTRONICS
MODULE CAP CONVERTER
MODULE CAP
Figure 4. Fisher i2P‐100 Electro‐Pneumatic
Transducer Mounted on a Size 33 1052 Rotary
Actuator with 3610J Positioner and V300B Rotary
Valve
W8693
CONDUIT
CONNECTION
FIELD TERMINATION
AND ELECTRONICS
MODULE CAP
CONVERTER
MODULE CAP
Transducers also can be ordered separately for mounting on a control valve assembly already in service, or for
mounting on a 2 inch diameter pipestand, or a flat surface. The transducer may be ordered either with or without
mounting parts.
CAUTION
Do not mount the vent in a downward position as the vent will not drain properly and may become blocked with ice or
debris, resulting in process instability.
Mounting parts include a mounting plate and bolts and, if ordered for pipestand mounting, a pipe clamp. Tubing is not
included if the transducer is not factory mounted. Use 3/8‐inch diameter tubing for all input and output connections.
The length of tubing between the transducer output and the final control element should be as short as possible.
Transducer overall dimensions are shown in figure 5. If weatherproofing is required, mount the transducer so that the
vent can drain. Do not allow moisture or condensate to collect in the vent.
Pneumatic Connections
As shown in figure 5, all pressure connections on the transducer are 1/4 NPT internal connections. Use 3/8‐inch tubing
for all pressure connections. Refer to the vent subsection below for remote vent connections.

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Figure 5. Dimensions and Connections
58.7
(2.31)
22.3
(0.88)
75.2
(2.96)
55.7
(2.19)
33.3
(1.31)
67.8
(2.67)
75.7
(2.98)
22.9
(0.90) 33.3
(1.31)
33.3
(1.31)
67 (2.62) CAP
REMOVAL
CLEARANCE
67 (2.62) CAP
REMOVAL
CLEARANCE
1/4 18 NPT
SUPPLY
CONNECTION
1/2 14 NPT
CONDUIT
CONNECTION
81.6
(3.21)
74.2
(2.92)
34.7
(1.37)
98.7
(3.89)
mm
(INCH)
GE0643
(sheet 1 of 4)
1/4 18 NPT
OUTPUT
CONNECTION
103.9
(4.09)
103.9
(4.09)
36.3
(1.43)
1/4 18 NPT
OUTPUT
CONNECTION
1/4 18 NPT VENT
OR PIPE‐A‐WAY
CONNECTION
Supply Pressure Requirements
WARNING
Severe personal injury or property damage could result from an unstable process if the instrument supply medium is not
clean, dry, oil‐free and noncorrosive. While use and regular maintenance of a filter that removes particles larger than 40
micrometers in diameter will suffice in most applications, check with an Emerson Process Management field office and
industry instrument air quality standards for use with corrosive air or if you are unsure about the proper amount or method
of air filtration or filter maintenance.
Supply pressure must be clean, dry air or noncorrosive gas. Use a Fisher 67CFR filter regulator with standard 5
micrometer filter, or equivalent, to filter and regulate supply air. The filter regulator can be mounted on a bracket with
the transducer as shown in figure 6 or mounted on the actuator mounting boss. An output pressure gauge may be
installed on the regulator to indicate the supply pressure to the transducer. Also, as an aid for calibration, a second
gauge may be installed on the transducer to indicate transducer output pressure.
Connect the nearest suitable supply source to the 1/4 NPT IN connection on the filter regulator (if furnished) or to the
1/4 NPT SUPPLY connection on the transducer case (if the filter regulator is not attached).

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MOUNTING BRACKET
i2P‐100 TRANSDUCER
REGULATOR
PIPE
NIPPLE
2.5 INCH
CHAMFER 45_to 27/64 DIA
1/4‐18 NPT EXTERNAL
Figure 6. Typical Fisher i2P‐100 Mounting With 67CFR Filter Regulator
Diagnostic Connections
To support diagnostic testing of valve/actuator/positioner packages, special connectors and hardware are available.
Typical connector installations are shown in figure 7. The hardware used includes a 1/4 NPT pipe nipple and pipe tee
with a 1/8 NPT pipe bushing for the connector. The connector consists of a 1/8 NPT body and body protector.
Figure 7. Diagnostics Hookup for Fisher i2P‐100 Transducer
PIPE BUSHING
BODY PROTECTOR
BODY
PIPE TEE
PIPE NIPPLE (SEE FIGURE 6)
STEM
PROVIDED WHEN
GAUGE IS SPECIFIED GAUGE
GE06439‐A
(sheet 1 of 4)
B2395‐1

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Note
If the i2P‐100 transducer is used in a valve assembly with a positioner, no hook‐up for diagnostic testing is required for the i2P‐100.
The hook‐up for diagnostic testing should be installed at the positioner.
Install the connectors and hardware between the i2P‐100 transducer and the actuator.
1. Before assembling the pipe nipple, pipe tee, pipe bushings, actuator piping, and connector body, apply sealant to
all threads.
2. Turn the pipe tee to position the connector body and body protector for easy access when doing diagnostic testing.
Vent
When using natural gas as the supply medium ensure that the following warnings are read and understood. Contact
your Emerson Process Management sales office if you have any questions regarding the information contained in this
section.
WARNING
This unit vents the supply medium into the surrounding atmosphere. When installing this unit in a non‐hazardous
(non‐classified) location in a confined area, with natural gas as the supply medium, you must remotely vent this unit to a
safe location. Failure to do so could result in personal injury or property damage from fire or explosion, and area
re‐classification.
When installing this unit in a hazardous (classified) location remote venting of the unit may be required, depending upon
the area classification, and as specified by the requirements of local, regional, and federal codes, rules and regulations.
Failure to do so when necessary could result in personal injury or property damage from fire or explosion, and area
re‐classification.
Vent line piping should comply with local and regional codes and should be as short as possible with adequate inside
diameter and few bends to reduce case pressure buildup.
If a remote vent is required, the vent line must be as short as possible with a minimum number of bends and elbows.
To connect a remote vent, remove the plastic vent (key 71, figure 13). The vent connection is 1/4 NPT internal. Use
3/8‐inch tubing to provide a remote vent.
Electrical Connections
WARNING
For explosion‐proof applications, or when using natural gas as the supply medium, disconnect power before removing the
housing cap. Personal injury or property damage from fire or explosion may result if power is not disconnected before
removing the cap.
For intrinsically safe installations, refer to the nameplate or to instructions provided by the barrier manufacturer, for
proper wiring and installation.
Note
For North American explosion‐proof applications in the Class/Division system, the i2P‐100 has been designed such that a conduit
seal is not required. For all other applications install the product as per local, regional, or national code, rules, and regulations.

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WARNING
Select wiring and/or cable glands that are rated for the environment of use (such as hazardous location, ingress protection,
and temperature). Failure to use properly rated wiring and/or cable glands can result in personal injury or property damage
from fire or explosion.
Wiring connections must be in accordance with local, regional, and national codes for any given hazardous area approval.
Failure to follow the local, regional, and national codes could result in personal injury or property damage from fire or
explosion.
Use the 1/2 NPT conduit connection, shown in figure 5, for installation of field wiring.
Refer to figures 8, 9, and 10 when connecting field wiring from the control device to the transducer. Connect the
positive wire from the control device to the transducer “+” terminal and, the negative wire from the control device to
the transducer “-” terminal. Do not overtighten the terminal screws. Maximum torque is 0.45 NSm (4 lbfSin.). Connect
the transducer grounding terminal to earth ground.
Grounding terminals are provided both inside and outside the transducer housing.
Figure 8. Typical Field Wiring Diagram
+
−
+
−−+
1
CONTROL
DEVICE
TRANSDUCER
HOUSING
TERMINAL
BLOCK
FIELD WIRING
EARTH
GROUND
NOTE:
 FOR TROUBLESHOOTING OR MONITORING OPERATION,
AN INDICATING DEVICE CAN BE A VOLTMETER ACROSS
A 250 OHM RESISTOR OR A CURRENT METER.
1
A3875
Figure 9. Equivalent Circuit
4 - 20 mA
6.8V 6.8V 4V
40 Ohm
Operating Information
During normal operation, the output of the i2P‐100 transducer is connected to the final control element.
Calibration
WARNING
On explosion‐proof instruments, or when using natural gas as the supply medium, remove electrical power before
removing either of the housing caps in a hazardous area. Personal injury or property damage may result from fire or
explosion if power is applied to the transducer with the cap removed in a hazardous area.

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For intrinsically safe areas, current monitoring during operation must be with a meter approved for use in hazardous areas.
Equipment Required
Choose a current or voltage source that is capable, without switching ranges, of driving the transducer through its
entire input range. Switching ranges on a current or voltage source will produce spikes or mid‐scale reverses in the
input signal presented to the transducer, causing errors. The current source should be capable of delivering 30 mA
with 30 VDC maximum compliance voltage.
Calibration Procedure
WARNING
To avoid personal injury or property damage due to an uncontrolled process provide some temporary means of process
control before beginning the calibration procedure.
Refer to figure 10 for adjustment locations.
Figure 10. Zero and Span Adjustments and Switch Settings
PCB/CUP
ASSEMBLY
SPAN
ADJUSTMENT
FIELD WIRING
CONNECTION
SWITCH SETTINGS(3)
ZERO
ADJUSTMENT
4‐20 mA3‐15 psi 4‐12 mA3‐15 psi
OR
4‐20 mA6‐30 psi
OR
4‐20 mA2‐33 psi
12‐20 mA3‐15 psi
{
- +
GE03345
OR OR
NOTES:
THE SWITCH SETTINGS WILL PRODUCE THE PERFORMANCE CHARACTERISTICS AS INDICATED. FOR
EXAMPLE, BOTH SWITCHES PLACED IN THE OFF POSITION WILL CREATE A 4‐20 mA INPUT WITH A
3‐15 PSIG OUTPUT PERFORMANCE CHARACTERISTIC
1. INPUT SIGNAL SPLIT RANGE IS SELECTABLE VIA DIP‐SWITCH CONFIGURATION.
2. OUTPUT RANGE DIP‐SWITCH SELECTION FOR 0.14 TO 2.0 BAR (2 TO 33 PSIG) USES SETTING B
AND REQUIRES ZERO TO SPAN ADJUSTMENTS. FOR OTHER RANGES, ZERO AND SPAN ADJUST
MENTS NEEDED.
3. SWITCH 1 SET TO THE ON POSITION AND SWITCH 2 SET TO THE OFF POSITION IS NOT A VALID
SWITCH SETTING.
SETTING A SETTING B(1,2) SETTING C(1)
Note
The following steps are for a 4‐20 mA, 0.2 to 1.0 bar (3 to 15 psig) configured unit. The same procedure is used for other
configurations.

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1. Remove electronics module cover (cover adjacent to conduit entry, see figure 3 and 4).
CAUTION
Do not attempt to remove either of the housing caps if the locking set screws (key 8) are engaged. Removing housing caps
without disengaging the set screws can cause damage to the housing caps.
2. Input and output ranges are selectable by dip switch selection. Refer to figure 10 for dip switch settings. Adjust dip
switch settings and zero and span as necessary to achieve the desired input/output range.
3. If a current source other than the control device is used as the input source, disconnect the control device and
connect the current source positive terminal to the transducer “+” terminal and the current source negative
terminal to the transducer “-” terminal.
If an external meter is used, connect the current source positive terminal to the transducer “+” terminal. Connect
the meter positive terminal to the transducer “-” terminal and the meter negative terminal to the current source
negative terminal as shown in figure 8.
4. Check the supply pressure to ensure it is at the recommended pressure. Refer to table 1, the Specifications table,
for supply pressure recommendations.
5. Adjust the input current to the low mA DC.
6. The output pressure should be 0.2 bar (3 psig). If not, adjust the ZERO potentiometer until the output pressure
is 0.2 bar (3 psig).
7. Adjust the input current to the high mA DC.
8. The output pressure should be 1.0 bar (15 psig). If not, adjust the SPAN potentiometer until the output pressure
is 1.0 bar (15 psig).
9. Repeat steps 5 through 8 until the output pressure is within the referenced accuracy requirements without further
adjustment.
10. If a current source other than the control device was used, disconnect the current source and reconnect the control
device.
Principle of Operation
The converter module receives a standard DC current input signal from a control device to operate coils in a force
balanced beam system which in turn, controls bleed air through an integral nozzle/flapper arrangement. The nozzle
pressure provides the input signal to operate the relay as shown in figure 11. Relay output pressure is applied, through
tubing, directly to the final control element or valve/actuator assembly.

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Figure 11. Fisher i2P‐100 Transducer Schematic
COIL
ZERO
AND
SPAN
CIRCUIT
DC
CURRENT
INPUT SIGNAL
PNEUMATIC RELAY
DIAPHRAGM
EXHAUST
DIAPHRAGM
OUTPUT
PRESSURE
MAGNET
BEAM
FLAPPER
NOZZLE
RESTRICTION
VALVE PLUG
SUPPLY PRESSURE
A3877-2
-
+
{
CURRENT‐TO‐PRESSURE
CONVERTER ASSEMBLY
FIELD TERMINATOR AND
ELECTRONICS CIRCUIT
F
F
Maintenance
Due to normal wear or damage from external sources such as debris in the supply medium, periodic maintenance or
repair of the transducer may be necessary. Maintenance of the transducer consists of troubleshooting, removal for
inspection, and replacement of component parts, as well as removal and inspection of the external removable
filter/restriction and cleaning or replacing as necessary (see figure 1).
WARNING
To avoid personal injury or property damage from the sudden release of pressure, air or natural gas:
D Always wear protective clothing, gloves, and eyewear when performing any maintenance operations.
D Do not remove the actuator from the valve while the valve is still pressurized.
D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the
actuator cannot suddenly open or close the valve.
D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure
on both sides of the valve.
D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
WARNING
When using natural gas as the supply medium, or for explosion proof applications, the following warnings also apply:

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D Remove electrical power before removing either housing cap. Personal injury or property damage from fire or
explosion may result if power is not disconnected before removing either cap.
D Remove electrical power before disconnecting any of the pneumatic connections or removing the external removable
filter/restriction.
When disconnecting any of the pneumatic connections or the external removable filter/restriction, natural gas will seep
from the unit and any connected equipment into the surrounding atmosphere. Personal injury or property damage may
result from fire or explosion if preventative measures are not taken, such as adequate ventilation and the removal of any
ignition sources.
CAUTION
Do not attempt to remove either of the housing caps if the locking set screws (key 8) are engaged. Removing housing caps
without disengaging the set screws can cause damage to the housing caps.
CAUTION
When replacing components, use only components specified by the factory. Always use proper component replacement
techniques, as presented in this manual. Improper techniques or component selection may invalidate the approvals and
the product specifications, as indicated in table 1. It may also impair operations and the intended function of the device.
The converter module and the electronics module are non‐repairable. If troubleshooting or alignment attempts indicate a
faulty converter or electronics module, replace the module or return the transducer to your Emerson Process Management
sales office for repair.
Troubleshooting
The following procedures require taking the control valve/actuator assembly out of service. Provide some temporary
means of process control before taking the control valve out of service.
Electrical
1. Ensure terminal lug connections from the control device to the transducer are of the correct polarity (refer to the
electrical connection procedures in the Installation section of this manual).
2. At the transducer, ensure that the mA DC signal is applied, and ensure that it is within the 4 to 20 mA range.
3. Check switches and ensure that they are properly set. Refer to figure 10.
4. If the problem has not been resolved, see Electronics Module Replacement in this manual.
Pneumatic
Provide a 4‐30 mA DC current source, supply pressure, and a gauge to monitor the output pressure when checking
transducer operation. Refer to figure 13 for key number locations.
1. Ensure that supply pressure to the transducer meets your requirements [0.3 bar (5 psi) higher than upper range
limit of output signal, with a maximum of 3.4 bar (50 psi)].
2. Ensure that the filter (key 11) and restrictor (key 10) are open and clean. Remove the two screws (key 14), the filter
cap (key 13) and the O‐ring (key 12) to access the filter and restrictor.

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3. If a filter/regulator is used, ensure that it is working correctly. If not, ensure the dripwell is not plugged because of
excessive moisture accumulation. If necessary, drain off any moisture, and clean or replace the filter element.
4. Force the converter module to maximum output pressure with a 30 mA DC signal. Output pressure should build up
to the approximate value of the supply pressure [maximum of 3.4 bar (50 psi)].
5. When the input current is removed, the transducer output pressure should drop to less than 0.14 bar (2 psig). If it
does not, check to ensure the vent and exhaust air passageway is free from foreign material.
6. To inspect the relay assembly, refer to the Relay Maintenance procedures in this manual.
7. If the problem has not been resolved, see Converter Module Replacement in this manual.
Converter Module Replacement
Removal
Refer to figure 13 for key number locations.
1. Disconnect operating lines providing air pressure, electric power, or a control signal to the actuator. If using gas as
the supply medium remove electrical power before removing the housing cap.
2. Remove the housing cap (key 2) (the cap farthest away from the conduit). Note that the set screw associated with
this housing cap (key 8) needs to be loosened to remove the cap.
3. Unscrew the two captive screws (key 52) and remove the converter module from the housing.
4. Inspect the O‐ring (key 55) and replace if necessary.
Replacement
1. Lubricate the O‐ring (key 55) with a silicone sealant before replacing the converter module in the housing.
2. Insert the converter module into position in the housing (key 1). Replace the two screws (key 52) and tighten them.
3. Replace the housing cap (key 2), making sure to re‐tighten the set screw (key 8).
4. Electrically calibrate the unit using the procedure in the Calibration section of this manual.
Electronics Module Replacement
Removal
Refer to figure 13 for key number locations.
1. Disconnect operating lines providing air pressure, electric power, or a control signal to the actuator. If using gas as
the supply medium remove electrical power before removing the housing cap.
2. Remove the housing cap (key 2) (the cap closest to the conduit). Note that the set screw (key 8) associated with this
housing cap needs to be loosened to remove the cap.
3. Note the location of the wires, then remove the electrical wiring from the terminal block.
4. Remove the three screws (key 26) and remove the electronics module from the housing.
Replacement
1. Insert the electronics module into position in the housing (key 1). Replace the three screws (key 26) and tighten
them.
2. Replace the electrical wiring removed in step 1 of the removal procedures. Do not overtighten the terminal screws.
Maximum torque is 0.45 NSm (4 lbfSin).