This instruction manual provides installation,
operation, maintenance, and parts ordering
information for the Type i2P-100 transducer (see
figure 1). Refer to separate manuals for instructions
covering equipment used with the transducer.
No person may install, operate or maintain a Type
i2P-100 electro-pneumatic transducer 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 this manual. If you
have any questions about these instructions, contact
your Fisher sales office.
INTEGRAL
PNEUMATIC
RELAY
W8710
Figure 1. Type i2P-100 Electro-Pneumatic Transducer
Description
The transducer, shown in figure 3, receives a 4 to 20
milliampere dc input signal and transmits a
proportional user field-configurable pneumatic output
pressure to a final control element. The pneumatic
output ranges are typically 0.2 to 1.0 bar (3 to 15
psig) and 0.4 to 2.0 bar (6 to 30 psig). 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.
CAUTION
Dropping or rough handling of the
transducer can cause damage to the
converter module resulting in a shifted
output or a minimum output.
REPLACEABLE
FILTER WITH
REMOVABLE
ORIFICE
VENT
www.Fisher.com
D103198X012
i2P-100 Transducer
Instruction Manual
Form 5777
September 2004
Table 1. Specifications
Input Signal
(1)
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)
or 0.4 to 2.0 bar (6 to 30 psig). User configurable
by dip switch selection and zero and span
potentiometer adjustment, see table below.
INPUT SIGNAL
4 to 20 mA dc
4 to 12 mA dc0.2 to 1.03 to 15
12 to 20 mA dc0.2 to 1.03 to 15
OUTPUT PRESSURE
BAR
0.2 to 1.03 to 15
0.4 to 2.06 to 30
PSIG
Equivalent Circuit
The Type i2P- 100 equivalent circuit is a series
circuit consisting of a constant voltage drop
(battery) of approximately 4 V dc and a total
resistance of 40 ohms. Input is shunted by two
6.8 V zener diodes (see figure 9).
Supply Pressure
(1,5)
Recommended: 0.3 bar (5 psi) higher than upper
range limit of output signal
Maximum: 3.4 bar (50 psig)
Maximum Output Air Capacity
(2)
8.0 m3/hr (5.0 scfm) at 1.4 bar (20 psig) supply
pressure
Performance
(3)
Reference Accuracy: ±1.0% of full scale output
span; includes combined effects of hysteresis,
linearity, and deadband
Independent Linearity
output span
Hysteresis
(1)
: 0.4% of full scale output span
Frequency Response
(1)
: ±0.75% of full scale
(1)
: Gain is attenuated 3 dB
at 6 Hz with transducer output signal piped to a
typical instrument input
Temperature Effect: ±0.14% per degrees
Celsius (±0.75% per degrees Fahrenheit) of span
Supply Pressure Effect: 0.2% of full scale output
span per bar supply pressure change (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 SAMA PMC 31.1,
Condition 3
Electromagnetic Interference (EMI)
(1)
: Tested
per IEC 61326-1 (Edition 1.1).Conforms to the
European EMC Directive. Meets emission levels
for Class A equipment (industrial locations) and
Class B equipment (domestic locations). Meets
immunity requirements for industrial locations
(Table A.1 in the IEC specification document).
Immunity performance shown in table 2.
Operating Ambient Temperature Limits
(5)
-40 to 85_C ( -40 to +180_F)
Medium: Air or Natural Gas
Average Steady State Flow Rate
OUTPUT RANGE
0.2 to 1.0 bar (3-15 psig)0.4 to 2.0 bar (6-30 psig)
SUPPLY PRESSURE
1.5 bar (20 psig)2.4 bar (35 psig)
OUTPUTFLOW RATEOUTPUTFLOW RATE
BarPsig
0.230.083.00.460.093.6
0.690.124.51.2180.197.0
1.0150.176.32.1300.2710.2
2
Normal
3
m
/h
ScfhBarPsig
(4)
(1)(2)
Normal
3
m
/h
Scfh
(continued)
Electrical Classification
Hazardous Area
(6)
:
Explosion proof, Dust-Ignition proof, DIV 2,
Intrinsically Safe
Electrical Housing: NEMA 3R, CSA enclosure
Type 3R, IP66 per IEC60529
housing cap (see figure 10).
Switch: Allows input signal split range and
user-configurable 0.2 to 2 bar (3 to 30 psig)
Connections
Supply and Output Pressure: 0.25 inch NPT
female connection
Vent: 0.25 inch NPT female
output.
Mounting Position
J Actuator J pipestand or J surface
Electrical: J Standard 0.5 inch NPT
Wire Size: 18 to 22 AWG
Adjustments
(7)
Zero and Span: Trim potentiometers (20 turn) for
zero and span adjustments are located under the
1. These terms are defined in ISA Standard S51.1.
2. 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).
3. 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).
4. This product is approved for use with Natural Gas. Natural gas to contain no more than 20 ppm of hydrogen sulphide.
5. The pressure and temperature limits in this manual and any applicable standard or code limitation should not be exceeded.
6. Approvals are pending
7. For other ranges, zero and span adjustments are needed.
Table 2. Immunity Performance
PortPhenomenonBasic StandardPerformance Criteria
Electrostatic discharge (ESD)IEC 61000-4-2A
Enclosure
I/O signal/control
Specification limit = ±1% of span
Radiated EM fieldIEC 61000-4-3A
Rated power frequency magnetic fieldIEC 61000-4-8A
Burst (fast transients)IEC 61000-4-4A
SurgeIEC 61000-4-5A
Conducted RFIEC 61000-4-6A
Approximate Weight (Transducer Only)
2.5 kg (5.5 lbs)
Actuator Stroking Time
See figure 2
100
90
80
OUTPUT
(% OF TYPE i2P-100 OUTPUT SPAN)
70
60
50
40
30
20
10
0
0 102030405060708090100
A6815 / IL
LOADING
EXHAUSTING
TIME (%)
Figure 2. Output-Time Relationships for Type i2P-100
Transducer
Specifications
Specifications for the Type 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.
3
i2P-100 Transducer
CONDUIT
CONNECTION
FIELD
TERMINATION AND
ELECTRONICS
MODULE CAP
CONVERTER
MODULE CAP
FIELD
TERMINATION AND
ELECTRONICS
MODULE CAP
W8693
Instruction Manual
Form 5777
September 2004
CONDUIT
CONNECTION
CONVERTER
MODULE CAP
W8723
Figure 3. Type i2P-100 Electro-Pneumatic Transducer
Mounted on a Size 30 667 Sliding-Stem Actuator
Educational Services
For information on available courses for the Type
i2P-100 Electro-Pneumatic Transducer, 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: education@emersonprocess.com
Note
Fisher does not assume responsibility
for the selection, use and maintenance
of any product. Responsibility for the
selection, use and maintenance of any
Fisher product remains with the
purchaser and end-user.
Figure 4. Type i2P-100 Electro-Pneumatic Transducer
Mounted on a Size 33 1052 Rotary Actuator, 3610J Positioner
and V300B Rotary Valve.
Installation
The i2P-100 transducer has been designed and
approved for use with either air or natural gas as the
supply medium. 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,
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.
WARNING
To avoid personal injury or property
damage from the sudden release of
pressure:
D Always wear protective clothing
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.
4
Instruction Manual
Form 5777
September 2004
i2P-100 Transducer
74.2
81.6
(2.92)
(3.21)
67.8
(2.67)
GE0643
(sheet 1 of 4)
33.3
(1.31)
58.7
(2.31)
55.7
(2.19)
36.3
(1.43)
34.7
(1.37)
98.7
0.25 18 NPT
SUPPLY
CONNECTION
CONNECTION
(3.89)
0.25 18 NPT VENT
OR PIPE-A-WAY
CONNECTION
67 (2.62) CAP
REMOVAL
CLEARANCE
0.5 14 NPT
CONDUIT
103.9
(4.09)
0.25 18 NPT
OUTPUT
CONNECTION
75.2
(2.96)
22.3
(0.88)
22.9
(0.90)
33.3
(1.31)
33.3
(1.31)
0.25 18 NPT
OUTPUT
CONNECTION
75.7
(2.98)
103.9
(4.09)
67 (2.62) CAP
REMOVAL
CLEARANCE
mm
(INCH)
Figure 5. Dimensions and Connections
WARNING
This unit vents the supply medium into
the surrounding atmosphere. When
installing this unit in a non-hazardous
location 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 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.
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 figure 3 and 4 for typical mounting
configurations.
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.
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 0.375 inch diameter tubing for all
input and output connections. The length of tubing
5
i2P-100 Transducer
MOUNTING
BRACKET
Instruction Manual
Form 5777
September 2004
i2P-100 TRANSDUCER
REGULATOR
Figure 6. Typical Type i2P-100 Mounting With Type 67CFR Filter Regulator
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.
Note
The vent will not drain properly when
mounted in the downward position.
Pneumatic Connections
As shown in figure 5, all pressure connections on the
transducer are 0.25 inch NPT female connections.
Use 0.375 inch tubing for all pressure connections.
Refer to the vent subsection below for remote vent
connections.
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
non-corrosive. While use and regular
maintenance of a filter that removes
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 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 Type 67CFR Filter
Regulator, 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
6
Instruction Manual
Form 5777
September 2004
GE06439-A
(sheet 1 of 4)
B2395-1/IL
STEM
PROVIDED WHEN
GAUGE IS SPECIFIED
PIPE TEE
PIPE NIPPLE
i2P-100 Transducer
GAUGE
BODY PROTECTOR
BODY
PIPE BUSHING
Figure 7. Diagnostics Hookup for Type i2P-100 Transducer
TERMINAL
BLOCK
CONTROL
DEVICE
+
-
NOTE:
1
FOR TROUBLESHOOTING OR MONITORING OPERATION,
AN INDICATING DEVICE CAN BE A VOLTMETER ACROSS
A 250 OHM RESISTOR OR A CURRENT METER.
A3875/IL
Figure 8. Typical Field Wiring Diagram
FIELD WIRING
-+
1
EARTH
GROUND
TRANSDUCER
HOUSING
+
-
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
0.25 inch NPT IN connection on the filter regulator (if
furnished) or to the 0.25 inch NPT SUPPLY
connection on the transducer case (if the filter
regulator is not attached).
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 0.25 inch NPT pipe nipple
and pipe tee with a 0.125 inch NPT pipe bushing for
the connector. The connector consists of a 0.125
inch NPT body and body protector.
Note
If the Type i2P-100 transducer is used
in a valve assembly with a positioner,
no hook-up for diagnostic testing is
required for the Type i2P-100. The
hook-up for diagnostic testing should
be installed at the positioner.
Install the connectors and hardware between the
Type 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.
7
i2P-100 Transducer
Instruction Manual
Form 5777
September 2004
Vent
WARNING
This unit vents the supply medium into
the surrounding atmosphere. When
installing this unit in a non-hazardous
location 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 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 0.25 inch NPT female. Use 0.375 inch tubing to
provide a remote vent.
4 - 20 mA
6.8V6.8V4V
40 Ohm
Figure 9. Equivalent Circuit
Use the 0.5 inch 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.
Operating Information
The normal mode of operation for Type i2P-100
transducer requires that the pneumatic output
pressure be piped to the final control element. If this
is not done the resulting pneumatic output will vent
to the atmosphere.
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.
8
Calibration
WARNING
On explosion-proof instruments, or
when using natural gas as the supply
medium, remove electrical power
before removing either of the 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.
For intrinsically safe areas, current
monitoring during operation must be
with a meter approved for use in
hazardous areas.
Instruction Manual
Form 5777
September 2004
i2P-100 Transducer
PCB/CUP
ASSEMBLY
SPAN
ADJUSTMENT
FIELD
WIRING
NOTES:
1. INPUT SIGNAL SPLIT RANGE IS SELECTABLE VIA DIP-SWITCH CONFIGURATION.
2. OUTPUT RANGE DIP-SWITCH SELECTION FOR 0.2 TO 2.0 BAR (3 TO 30 PSIG).
FOR OTHER RANGES, ZERO AND SPAN ADJUSTMENTS NEEDED.
CONNECTION
- +
{
Figure 10. Zero and Span Adjustments and Switch Settings
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 V dc
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.
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.
1. Remove electronics module cover (cover
adjacent to conduit entry, see figure 3 and 4).
ZERO
ADJUSTMENT
SWITCH
SETTINGS
4- 20 , 3-15
(1,2)
GE03345
OR
4- 12 , 3-15
4- 20 , 6-30
OR
12- 20 , 3-15
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 milliamperes
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 milliamperes
dc.
8. The output pressure should be 1.0 bar (15 psig).
If not, adjust the SPAN potentiometer until the output
pressure is 0.8 bar (15 psig).
9
i2P-100 Transducer
Instruction Manual
Form 5777
September 2004
FIELD TERMINATOR AND
ELECTRONICS CIRCUIT
COIL
ZERO
AND
SPAN
CIRCUIT
{
DC
CURRENT
INPUT
SIGNAL
DIAPHRAGM
EXHAUST
DIAPHRAGM
OUTPUT
PRESSURE
A3877-2/IL
Figure 11. Type i2P-100 Transducer Schematic
F
-
+
F
CURRENT-TO-PRESSURE
CONVERTER ASSEMBLY
MAGNET
BEAM
FLAPPER
NOZZLE
PNEUMATIC
RELAY
RESTRICTION
VALVE
PLUG
SUPPLY
PRESSURE
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.
Maintenance
The normal mode of operation for Type i2P-100
transducer requires that the pneumatic output
pressure be piped to the final control element. If this
is not done the resulting pneumatic output will vent
to the atmosphere.
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:
D Always wear protective clothing
and eyewear when performing any
maintenance operations.
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
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.
CAUTION
When you replace components, use
only components specified by the
factory. Always use proper component
replacement techniques, as presented
10
Instruction Manual
Form 5777
September 2004
i2P-100 Transducer
in this manual. Improper techniques
can cause poor quality repairs and
impair the safety features 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 Fisher sales office for repair.
Troubleshooting
Electrical
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.
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 milliampere dc
signal is applied, and ensure that it is within the 4 to
20 milliampere range.
4. Force the converter module to maximum output
pressure with a 30 milliampere 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. Remove the housing cap (key 2) (the cap farthest
away from the conduit). Note that the two set screws
(key 8) need to be loosened to remove the cap.
2. Unscrew the two captive screws (key 52) and
remove the converter module from the housing.
3. Inspect the O-ring (key 55) and replace if
necessary.
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 to 30 milliampere 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.
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.
Replacement
1. Lubricate the O-ring (key 55) with a lubricating
compound such as Dow Corning III 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 two set screws (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. Remove the housing cap (key 2) (the cap closest
to the conduit). Note that the two set screws (key 8)
need to be loosened to remove the cap.
2. Note the location of the wires, then remove the
electrical wiring from the terminal block.
11
i2P-100 Transducer
Instruction Manual
Form 5777
September 2004
VALVE PLUG
(KEY 39)
ONE OF THREE
TABS ON VALVE PLUG
END OF SPRING COIL
BODY PLUG
(KEY 32)
A6057-1/IL
Figure 12. Valve Plug, Inner Valve Spring and
Body Plug Assembly
INNER VALVE
SPRING
(KEY 35)
O-RING
(KEY 42)
3. 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).
3. Electrically calibrate the unit using the procedure
in the Calibration section of this manual.
4. Replace the housing cap (key 2), making sure to
re-tighten the set screw (key 8).
Relay Maintenance
Refer to figures 12 and 14 for key number locations.
Removal
1. Remove the four mounting screws (key 36,
shown in figure 14) and remove the relay from the
transducer. Be careful not to lose the bias spring
(key 34) and input diaphragm (key 38).
2. Remove the body plug (key 32) that holds the
inner valve spring (key 35) and valve plug (key 39) in
place from the relay body assembly.
3. Remove the exhaust port assembly (key 33) from
the relay assembly.
4. Inspect the springs, exhaust seat, valve plug, and
other parts for wear or damage; replace as
necessary. Note: the valve plug supply seat is an
insert in the relay body (key 41). If this insert is bad,
replace the relay body.
5. Make sure all parts of the relay are clean and that
all passages are clear of foreign matter.
Assembly
1. Assemble the inner valve spring (key 35) onto the
body plug (key 32) and fit the valve plug (key 39)
onto the inner valve spring as shown in figure 12. To
assure best alignment between the valve plug, inner
valve spring, and body plug; fit the valve plug onto
the inner valve spring so that one of the three tabs at
the base of the valve plug sets at the end of the last
coil of the inner valve spring.
2. Lubricate the O-ring (key 42) with Dow Corning III
(key 37). Insert the assembled valve plug, inner
valve spring, and body plug into the relay body (key
41). Compress the spring and thread the body plug
(key 5) into place. Then, tighten the body plug.
3. Insert two of the mounting screws (key 36) into
two opposite holes of the relay body (key 41). Hold
the screws in place while assembling the following
parts on the relay body. The screws serve as studs
to align the parts as they are being assembled.
4. When replacing the exhaust port assembly
(key 33), make sure all passages and screw holes
are aligned and that the hole in the center of the
exhaust port assembly fits over the valve plug
(key 39). Place the exhaust port assembly on the
relay body (key 41). Hold assembled parts in place.
5. Make sure the tabs on the body block (key 40)
align with the tabs on the relay body (key 41) and
that the side with 5 holes faces the relay body. Place
the body block on the assembled parts. Hold
assembled parts in place.
12
Instruction Manual
Form 5777
September 2004
i2P-100 Transducer
6. When replacing the input diaphragm (key 38),
make sure all passages and screw holes are
aligned. Place the input diaphragm on the body
block (key 40). Hold assembled parts in place.
7. Install the bias spring (key 34) into the transducer
housing assembly (key 1). Make sure the tabs on
the body block and relay body align with the tab on
the transducer housing assembly. Place the
assembled parts onto the transducer housing
assembly. Thread the two mounting screws (key 36)
into the transducer housing assembly. Install the
remaining two mounting screws. Tighten all
mounting screws to 2 NSm (20 lbfSin).
8. Perform the procedure in the Calibration section
of this manual.
Parts Ordering
A serial number is assigned to each transducer and
stamped on the nameplate. Always refer to this
serial number when corresponding with your Fisher
sales office regarding spare parts or technical
information. When ordering replacement part, also
specify the complete 11-character part number from
the 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. Use of components
not supplied by Fisher will void your
warranty, might adversely affect the
performance of the instrument, and
might jeopardize worker and
workplace safety.
Note
Fisher does not assume responsibility
for the selection, use and maintenance
of any product. Responsibility for the
selection, use and maintenance of any
Fisher product remains solely with the
purchaser and end-user.
41Relay / Body AssemblyGE03512X012
42O-Ring1E5477X0062
36Machine Screw, fill hd (4 req’d)1H1581X0012
32Body Plug11B2363X012
33Exhaust Port Assembly11B2364X012
34Spring11B2369X012
35Spring11B6843X012
38Upper Diaphragm21B2362X012
39Valve Plug21B2370X012
40Body Block31B2356X012
I/P Converter Assembly
43* I/P Converter Assembly30C2218X012
Gauge/Pipe Plug
23Pipe plug, use when gauge is not specified (not shown)
Alloy steel pl1C333528992
Stainless steel1C3335X0032
23Gauge, (not shown)
0- 30 psig/0 - 0.2 MPa/0- 2 bar11B8579X022
0- 60 psig/0 - 0.4 MPa/0- 4 bar11B8579X032
14
*Recommended spare parts
Instruction Manual
Form 5777
September 2004
NOTE:
APPLY LUBRICANT/SEALANT/ADHESIVE
30C2258-B/ IL
i2P-100 Transducer
Figure 14. Type i2P-100 Relay Assembly
KeyDescriptionPart Number
Diagnostic Connections
FlowScanner diagnostic system hook-up
Includes pipe tee, pipe nipple, pipe
bushings, connector body, and body
protector. See figure 7 for part
identification. Also, part number provides
correct quantities of each item.
Note
If the Type i2P-100 Transducer is used in a
valve assembly with a positioner, no hook-up
for diagnostic testing is required for the Type
i2P-100. The hook-up for diagnostic testing
should be installed at the positioner.
Type 585C (470) size 60, 68, 100, and 130 ; Type 657
and 667 size 30, 34, 40, 45, 50, 60, 70, 80 & 87; Type
1051 and 1052 size 40, 60 and 70; Type 1061all sizes
FlowScanner and Fisher are marks owned by Fisher Controls International LLC, a member of the Emerson Process Management business division
of Emerson Electric Co. The Emerson logo is a trademark and service mark 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.
Fisher does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and
maintenance of any Fisher product remains solely 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
16
EFisher Controls International LLC 2004; All Rights Reserved Printed in USA
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