Emerson Fisher i2P-100 Data Sheet

Product Bulletin

i2P-100 Transducer

D103197X012

62.1:i2P-100 July 2014

Fisherr i2P-100 Electro-Pneumatic Transducer

The Fisher i2P-100 electro-pneumatic transducer, uses a converter module that converts a milliampere input to a proportional pressure output. Both the current input and pressure output range are user-configurable in the field. The converter module uses small parts of minimum mass, which are balanced symmetrically around a pivot point at the center of the mass. This balanced arrangement results in a high performance instrument that reduces sensitivity to vibration.

An integral pneumatic relay provides the high capacity necessary to drive pneumatic control valve/actuator assemblies without additional boosters or positioners. The transducer also provides stable, accurate operation when its output is transmitted to small volume chambers, such as a pneumatic positioner or other pneumatic instrument. Reduced sensitivity to vibration, combined with high capacity and first order lag characteristics, make the i2P-100 transducer suitable for direct mounting on control valve/actuator combinations.

INTEGRAL PNEUMATIC RELAY

W8710

n High Output Capability and Rangeability— The

integral output relay volume of the transducer is adequate to drive valve/actuator combinations without requiring a positioner or volume booster. Selectable user field-configurable dip switch setting for output range of 0.14 to 2.3 bar (2 to 33 psi).

REPLACEABLE FILTER WITH REMOVABLE ORIFICE

VENT

Features

n Approved for use with Natural Gas—The i2P-100 is

approved for use with natural gas as the pneumatic supply.

n Low Pneumatic Supply Consumption—The

transducer has low pneumatic supply consumption which lowers operating costs. Maximum steady state consumption is less than the 6 SCFH requirement set for the oil and gas industry by the US Environmental Protection Agency (New Source Performance Standards Subpart OOOO, EPAHQQAR20100505).

n Single Sealed Device— The i2P-100 has been tested

in accordance with ANSI/ISA Standard 12.27.01 (Requirements for Process Sealing Between Electrical Systems and Flammable or Combustible Process Fluids) as a single sealed device.

n Split Range—Selectable user field-configurable

two-way split range, using either half of the standard input signal.

n Corrosion Resistant—Separate housing

compartments isolate the electronics from the pneumatic process. The electronics module is encased in a rugged plastic shell which helps to prevent damage to the electronics. The printed wiring board and dip switches are conformal coated to help prevent corrosion. Converter module coils have corrosion resistant coating and all flexures are gold plated to provide protection from hostile environments.

n Tolerant of Dirty Supply Medium—Free-flow pilot

stage design and large internal air passages provide excellent tolerance to dirty pneumatic supply, by reducing the effects of contaminant buildup and erosion. The removable primary orifice and replaceable 5 micrometer filter are easy to remove for service and maintenance.

www.Fisher.com

Product Bulletin

62.1:i2P-100 July 2014

i2P-100 Transducer

D103197X012

Figure 1. Fisher i2P-100 Electro-Pneumatic Transducer Mounted on a Rotary Actuator

W8693-1

Figure 2. Fisher i2P-100 Electro-Pneumatic Transducer Mounted on a Sliding-Stem Actuator

W8723-1

n Easy Maintenance—Modular electronics and

converter modules contained in separate housing compartments, isolating the electronics from the process, allow for easy replacement in the field for reduced maintenance time and costs.

n Vibration Resistance—The transducer, used in a

standard valve/actuator mounted application, exhibits an output shift of less than 1 percent of span when tested to ISA S75.13.

Table of Contents

Features 1.....................................

Valve Stroking Time 2...........................

Specifications 3................................

Energy Responsible Tool 4.......................

Installation 6..................................

Ordering Information 6..........................

Valve Stroking Time

Figure 3 shows relative times for loading and exhausting an actuator. Stroking time depends upon the size of the actuator, travel, relay characteristics and the magnitude and rate of change of the input signal. If stroking time is critical, contact your Emerson Process Management sales office.

i2P-100 Transducer

D103197X012

Specifications

Product Bulletin

62.1:i2P-100 July 2014

Input Signal

Available as standard with 4-20 mA. User configurable by dip switch for split ranging, see table below.

Output Signal

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

4 to 20 mA DC

4 to 12 mA DC 0.2 to 1.0 3 to 15

12 to 20 mA DC 0.2 to 1.0 3 to 15

OUTPUT PRESSURE

Bar Psig

0.2 to 1.0 3 to 15

0.4 to 2.0 6 to 30

0.14 to 2.3 2 to 33

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 4).

Supply Pressure

(1)

Recommended: 0.34 bar (5 psi) higher than upper range limit of output signal

Maximum: 3.4 bar (50 psig) Medium: Air or Natural Gas

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 1 below. Emissions—Class A ISM equipment rating: Group 1, Class A

Operating Ambient Temperature Limits

(1)

-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

Maximum Steady-State Flow Rate

(2)(3)

Refer to tables 2 and 3

Maximum Output Air Capacity

(3)

8.04 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

-continued-

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 tables 4, 5, 6, and 7 for specific approval information.

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

Product Bulletin

62.1:i2P-100 July 2014

Specifications (continued)

i2P-100 Transducer

D103197X012

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

Construction Materials

Housing:

J Low-Copper aluminum with

polyurethane paint

O-rings: Nitrile Diaphragms: Nitrile

Adjustments

(5)

Zero and Span: Trim potentiometers (20 turn) for zero and span adjustments are located under the housing cap.

Switch: Allows input signal split range and user-configurable 0.14 to 2.3 bar (2 to 33 psig) output.

Connections

Supply and Output Pressure: 1/4 NPT internal connection

Vent: 1/4 NPT internal Electrical:

J Standard 1/2 NPT

Wire Size: 18 to 22 AWG

Mounting Position

J Actuator J pipestand or J surface

Approximate Weight

2.5 kg (5.5 lbs)

Options

J Output pressure gauge J M20 or PG13 conduit

adapter

NOTE: Specialized instrument terms are defined in ANSI/ISA Standard 51.1 - Process Instrument Terminology

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

2. Average flow rate determined at 12 mA and 0.6 bar (9 psig) output.

3. Normal m

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).

5. For other ranges, zero and span adjustments needed.

/hour--Normal cubic meters per hour (0_C and 1.01325 bar, absolute). Scfh--Standard cubic feet per hour (60_F and 14.7 psig).

Energy Responsible Tool

The web based Energy Responsible Tool provides calculations for estimating operating costs and emissions for instrument air and natural gas in tonnes of Equivalent Carbon Dioxide (Co2e).

Scan or click the QR code to calculate pneumatic energy savings.

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