Moore Industries IPT2 User Manual

July 2016
170-730-00G

Current-to-Pressure

(I/P) Transmitter

2

IPT

Current-to-Pressure

(I/P) Transmitter

2

IPT

All product names are registered trademarks of their respective companies.

Table of Contents

Introduction ........................................................................................................ 3

The IPT

2 ............................................................................................................. 3

Specifi cations .................................................................................................... 3

Ordering Information ......................................................................................... 4

Instrument Air and Filtration Information ....................................................... 5

Application Information .....................................................................................

Calibration .......................................................................................................... 7

Adjustments .........................................................................................................................7

Calibration Equipment ..........................................................................................................7

Test Jacks ............................................................................................................................8

Calibration Setup..................................................................................................................8

Calibration Procedure ..........................................................................................................8

Installation ...........................................................................................................9

Mounting ..............................................................................................................................9

Installation in Hazardous Locations

Electrical Connections........................................................................................................10

...................................................................... 10

6

Pneumatic Connections .....................................................................................................11

Operation .......................................................................................................... 12

Maintenance ..................................................................................................... 12

Troubleshooting .............................................................................................. 12

IPT

2

Introduction

This is the users’ manual for Moore Industries’
advanced current-to-pressure transmitter, the IPT2. It
contains all of the information needed to confi gure,
install, operate, and maintain the IPT2.

The following guidelines are used in this manual:

WARNING - Hazardous procedure or condition that
could injure the operator.

Caution - Hazardous procedure or condition that
could damage or destroy the unit.

Note - Information that is helpful for a procedure,
condition, or operation of the unit.

The IPT

The IPT2 is a compact, closed-loop, 2-wire current-to­pressure transmitter that converts a standard process
current signal to a pneumatic output. In its compact
aluminum housing, the IPT
mounting rails or onto a Moore Industries RIR or SIR.
Because of the low dynamic mass of the transducer
element, the unit can be mounted in any position and
is also insensitive to shock and vibration.

Individual IPT
section and an interlocking pneumatic mounting

2

2

snaps onto standard

2

s consist of two parts: the transmitter

block, which snaps onto a rail. Units that are ordered
without a mounting block will clip onto an RIR or
SIR, which supplies air to each unit using only one
pneumatic supply pipe. Both mounting blocks
and supply headers contain self-sealing valves.
Therefore, the IPT

2

can be removed and replaced
without disturbing the pneumatic connections or
causing accidental venting of the supply or output air.

Operation can be monitored or calibration performed
by using the electrical input and optional pneumatic
output test jacks. A red LED display, which indicates
the presence of an electrical input signal, is also
standard.

Table 1 contains the IPT

2

equipment specifi cations,
including inputs, outputs, power requirements, and
performance characteristics.

Model Number. The IPT

2

model number describes
the equipment type, functional characteristics,
operating parameters, any options ordered, and unit
housing. If all other documentation is missing, this
number is used to identify equipment characteristics.
The model number for the IPT

2

is located on a label

on the side of the unit.

Serial Number. Moore Industries maintains a
complete history on every unit it sells and services.
This information is keyed to the serial number. When
service information is required on the IPT

2

, it is
necessary to provide the factory with this number.
The serial number is located on the side of the unit.

Specifi cations

Performance

Specifi cations subject to change without notice.

Accuracy: <±0.25% of span
including the combined eff ect
of linearity, hysteresis, and
repeatability (between 0.5
and 3psi output, error will not
exceed ±1.0% of span)
Stability: Not to degrade
from stated accuracy for six
months
Step Response: <0.2 sec­onds into 100 M.L. load
(6 cubic inches) at 90%
output span
Supply Pressure Eff ect:
Negligible from 20-40psig,
steady pressure
Air Consumption:

0.08 SCFM, typical
(0.18 kg/hr)
Air Capacity:
Minimum 2.0 SCFM
Air Supply: Instrument air
only, 20-40psig. (Must be 5
psig greater than maximum
output)

Performance

(Continued)

Ambient

Conditions

Adjustments
Connections

Voltage Drop:

7.5V, maximum (5V maxi­mum without LED)
Mounting Position Eff ect:
Negligible, unit can be
mounted in any position
Shock and Vibration Eff ect:

0.25%/G or better over
5-15Hz; meets SAMA PMC

31.3

Operating & Storage Range:

-40°C to +80°C

-40°F to +176°F
Ambient Temperature Eff ect:
<±0.025% of span/°C, max
from 0°C to 50°C;
<±0.1% of span/°C, max.
RFI/EMI Eff ect:
<±0.1% of span change at
50V/m @ 20-1000MHz.

Zero & Span: Screw adjusts
zero or span by ±10% mini­mum, non-interactive

The Interface Solution Experts 3

Adjustments
Connections

(Continued)

Indicators

Weight

Electrical:

Removable front-mounted
terminal blocks, 22-14 AWG
Pneumatic: 1/8-inch NPT
female for both supply air
and output air on units with
optional mounting block.
Pneumatic Test Jacks:
Monitors output pressure
during calibration
Current Test Jacks: Input
current test jacks (labeled +T,
–T) for calibration; accepts
2mm (0.08 in) dia x 13mm
(.50 in) long phone tip plugs
(handles should be less than
8mm (0.32 in) in diameter)

LED: Red light-emitting
diode indicates presence and
intensity of electrical input
signal.

438g (15.6 oz)

2

IPT

Ordering Information

Unit

IPT2

DIN-Style
Current-to­Pressure
Transmitter

Input

4-20MA
4-12MA
12-20MA
into
375Ω
maximum
(250Ω
maximum
for units
without
LED)

Custom
ranges also
available.

Output*

0-20PSIG
1-17PSIG
3-15PSIG
3-16.6PSIG
3-18PSIG
3-27PSIG
6-30PSIG
.2-1BAR
20-100KPA
.2-1KGCM2
.02-.10MPA

†

Reverse Output:

20-0PSIG
17-1PSIG
15-3PSIG

16.6-3PSIG
18-3PSIG
27-3PSIG
30-6PSIG
1-.2BAR
100-20KPA
1-.2KGCM2
.10-.02MPA

*The unit’s output must match the supply
pressure to its right.
**Supply Pressure must be at least 5psi (0.3
Bar) higher than output pressure. (40psi max)

Supply Pressure**

25PSI
25PSI
20PSI
25PSI
25PSI
35PSI
35PSI

1.4BAR
140KPA

1.4KGCM2
.14MPA

25PSI
25PSI
20PSI
25PSI
25PSI
35PSI
35PSI

1.4BAR
140KPA

1.4KGCM2
.14MPA

**Access Designation (Required Selection):

–FA1
–FA2
–FA3
–FA4
–FA5
–FA6
–FA7 (Required for WTI Housing)
–FA8 (Required for WTI Housing)
–FA9
–FA10
–FA11
–FA12

**See Table 1 for more information

When ordering, specify: Unit / Input / Output / Supply Pressure / Options [Housing]
Model number example: IPT2 / 4-20MA / 3-15PSIG / 20PSI / –FA1 [DIN]

Options

Housing

DIN Aluminum, DIN-style
housing assembly.
WTI Rain-proof as defi ned
by NEMA 3R
(–FA7 or –FA8 required)
WTIP Rain-proof as
defi ned by NEMA 3R with
plate and u-bolts for 2”
pipe mounting

Table 1. Description of access designation options. (See Figure 4)

LED & Current

Option

–FA1
–FA2
–FA3
–FA4
–FA5
–FA6
–FA7
–FA8

–FA9
–FA10
–FA11
–FA12

†

Reverse output: The high-performance line of I/P

Test Jacks

Yes
Yes
Yes

Yes
None
None

Yes

Yes
None
None
None
None

Electrical Input

Location

Front
Front
Front
Front
Front
Front
Front
Front
Front
Front
Front
Front

Pneumatic Output

Supply Location

Bottom

Rear

Bottom

Rear

Bottom

Rear
No mounting block
No mounting block
No mounting block
No mounting block

Bottom

Rear

transmitters utilizes an internal feedback loop to
ensure accurate operation. The feedback loop consists
of an internal pressure transducer that samples the
unit’s output pressure and compares it to the input
signal. This allows the unit’s output to track the input
signal. Other I/P transmitters, such as our original
IPT, IPH and IPX models, rely solely on mechanical
positioning. This is what makes the IPT

2

, IPH2 and IPX2

Pneumatic Test

Jack Location

None
None
Front
Front
None
None
None
Front
None
Front
Front
Front

highly desirable. Since the feedback loop requires
power to operate, when there is no input power to the
unit, the pneumatic output will be shut off . Units that
use mechanical positioning only, will typically still have
a pneumatic output (18 PSIG typically) when power is
removed. This is not an issue except for those users
that rely on this elevated output (18PSIG) to maintain
a valve’s position upon the unexpected loss of input
signal (4-20mA). In such cases, the IPT2, reacts
diff erently by shutting off the pneumatic output.

4 The Interface Solution Experts

IPT

2

Instrument Air and Filtration Information

Note:

For optimum performance, the selection and

use of a good quality air fi ltration system is

essential. Most users fi nd that it is much less

expensive and troublesome to design a system

that includes good air fi ltration than deal with

downtime and repairs later.

A clean, dry air supply is important to assure the
maximum service life of an IPT
volves removing solids, oil and water from the air after
compression. The cleaner the air, the longer the time
before servicing is needed.

Oversizing elements avoids performance abberations
and reduces maintenance time. Redundancy should
be used where possible to avoid shutdown during
maintenance.

Solids: Random solid dirt, such as pipe scale and rust,
is rarely a problem in compressed air instrument sys­tems. A good fi lter removes these solids. However, if
there is a desiccant dryer in the line, a high-effi ciency
sub-micron fi lter is recommended to remove the highly
abrasive sub-micron particles produced by the dryer.

Liquid Oil: Liquid oil is the most common problem in
compressed air instrument systems. A coalescing fi lter
removes sub-micron liquid droplets from the air, and is
usually supplied with an automatic drain.

A coalescing fi lter works by trapping oil and water
droplets in a bed of microfi bers. The droplets run
together at fi ber cross-over points, form large liquid
drops, and are forced by air fl ow to a drain. A fi lter
system consisting of a general purpose fi rst-stage fi lter
(about 5 micron) and a high-effi ciency coalescing fi nal
fi lter is recommended to obtain contaminant-free air.

2

. Good air quality in-

Suffi cient water must be removed to lower the dew
point of the air to a temperature below ambient. The
dew point (at line pressure) is expressed as the tem­perature at which any moisture in the system begins to
condense.

Water may be removed using a number of techniques,
including coalescing fi lters, refrigeration dryers and
desiccant dryers. In addition, a variety of combina­tions and modular systems may be used for special
circumstances.

Care must be taken in the selection and location of
the fi lter, because cooling downstream of the fi lter can
cause more condensation of water. A coalescing fi lter
should be installed immediately upstream of the pres­sure regulator. This type of fi lter removes most of the
water before the air enters the regulator.

For systems subjected to freezing temperatures, the
portion of the system that runs outdoors should have a
dryer installed. The dryer reduces the dew point below
the lowest expected outdoor temperature. A desic­cant dryer is used with a coalescing fi lter upstream to
keep the desiccant dryer from being damaged by oil or
overloaded with excessive condensed water. Another
high-effi ciency coalescing fi lter is recommended down­stream of the dryer, to remove the desiccant particles.

ISA Specifi cations: The Instrument Society of America
standard ISA-S73, 1975 (ANSI MC11.1-1975) covers
the air quality requirements for instrument grade air for
use in pneumatic installations.

The dew point in outdoor installations must be at least

7.8°C (18°F) below the minimum local ambient tem­perature. For indoor installations, the dew point must
be at least 7.8°C (18°F) below the minimum interior
temperature or 2°C (35°F), whichever is greater.
Although the ISA standard calls for a 35°F dew point,
this is often unnecessary indoors, and may be unsatis­factory outdoors under freezing conditions.

The exact location of the fi rst-stage fi lter is not im­portant; it can be located just ahead of each fi nal
fi lter, or a single fi rst-stage fi lter can be located on a
main line to protect a number of fi nal fi lters on branch
lines. Each fi nal fi lter (coalescing) should be located
just ahead of each pressure regulator. In a new plant
installation, an oilless compressor may be used to
eliminate this problem.

Water: The amount of water in an air system
depends on temperature, pressure and the relative
humidity of the air.

Filters that exceed the ISA specifi cation provide very
inexpensive protection. Although the ISA specifi cation
calls for particle size not to exceed 3 microns and oil
content not to exceed 1ppm, most fi lter manufacturers
supply a line of coalescing fi lters that remove particles
down to sub-micron sizes (often 0.01 micron) while
also removing oil to below ISA 1ppm specifi cation
(often to 0.01ppm).

The Interface Solution Experts 5

IPT

Cooler

Receiver

5-Micron General

Purpose Filter

High-Efficiency

Coalescing

Filter

5-Micron General
Purpose Filter(s),

One Main or Multiple

on Branch Lines

Dessicant

Dryer

Extend Branch Line(s) Above Main

Line to Avoid Passing Liquids

0.01-Micron

High Efficiency

Coalescing

Filter(s)

{

Purified Air
For IPT

2

's

Main Line to
Other Branches

Keep Short

Pressure

Regulator

D

2

Application Information

Any approach to providing good instrument air
quality should evaluate the worst case air fl ow and
ambient temperature of the location. This is required
to determine sizing of the air system elements. A
knowledge of yearly humidity cycles is also important
for this evaluation.

Caution:

Before placing IPT

and mounting blocks or headers (SIRs or RIRs)

should be "blown down" to purge contamination and

condensation deposited during piping and installation.

Also blow down lines to loads, since all output air

vents back through the IPT

fi lters installed to trap these contaminants (normally

only present at start-up). It is recommend this be

done for at least an hour, longer if there is evidence of

water or oil coming through.

The IPT

2

requires periodic maintenance. Service in
the fi eld is limited to visual inspection and cleaning of
the input nozzle fi lter screen on the IPT2 and servicing
of the compressed instrument air fi ltration system.
The unit may be returned to the factory for complete
disassembly, cleaning, and servicing on a periodic
basis.

2

s in service, all pneumatic lines

2

, and there are never

The use of coalescing fi lters with retention of 0.01
micron particles and droplets is recommended;
they remove all undesirable traces of oil and water
droplets. Proper placement with respect to the
regulator may eliminate the need for dryers, except
when coalescing fi lters are exposed to freezing
temperature (keeping in mind that the dew point of the
purifi ed air must be kept below worst case ambient).

Figures 1 and 2 illustrate typical non-redundant
systems with multiple branch lines. They both work
in any environment above freezing and diff er only
in the placement of the general purpose fi rst-stage
fi lter. Gauges, valves, and diff erential pressure
indicators (for fi lter service monitoring) are not shown.
It is recommended that fi lters with integral service
life indicators or diff erential pressure indicators be
used to help ensure proper servicing, as well as
redundancy to avoid shutdown during servicing.

Figures 1 and 2 diff er in the method used to
remove water. The use of a desiccant type dryer
(Figure 2) requires upstream fi ltration to prevent
oil contamination of the desiccant, as well as
downstream fi ltration, to prevent desiccant fi nes from
introducing new contamination.

The service life of an IPT

2

is directly proportional to
the cleanliness and dryness of its air supply. The
small cost of providing high-quality air ensures a
longer, more trouble-free service life for the unit.

Figure 1. Non-Redundant System with Desiccant Dryer

Note: All fi lters should have
automatic drains and service
life indicators to show when
elements need changing.

6 The Interface Solution Experts

Figure 2. Non-Redundant System with Refrigeration Dryer

Cooler

Receiver

5-Micron General
Purpose Filter(s),

One Main or Multiple

on Branch Lines

Refrigeration

Dryer

Extend Branch Line(s) Above Main

Line to Avoid Passing Liquids

0.01-Micron

High Efficiency

Coalescing

Filter(s)

{

Purified Air
For IPT

2

's

Main Line to
Other Branches

Keep Short

Pressure

Regulator

D

Note: All fi lters should have
automatic drains and service
life indicators to show when
elements need changing.

2

IPT

Calibration

This section provides information necessary to adjust
and calibrate the IPT2. Each unit is calibrated and
checked at the factory prior to shipment. Before
installation, every IPT
for proper operation. Generally, these checks, which
are specifi ed under Calibration Procedures, require
little or no adjustment.

Adjustments

The IPT2 has Zero and Span adjustments located
on its front panel. The type of potentiometer used
with these adjustments usually require 15 turns of
the shaft to move the wiper from one end of its range
to the other. It is equipped with a slip clutch at each
end to prevent damage if the adjustment is turned
beyond the wiper stop. Usually a slight change can
be felt when the clutch is at the end of a range (i.e., it
is slipping). However, if this change is not felt, either

Table 2. Calibration Equipment

Equipment

2

should be checked by the user

Characteristics

end can be reached by turning the shaft 15 turns in
the desired direction.

Turning these potentiometers clockwise causes the
related output to increase in quantity or become more
positive; while turning them counterclockwise causes
the related output to decrease in quantity or become
more negative.

The Zero and Span potentiometers provide an
adjustment range of ±10% of full scale.

Calibration Equipment

Table 2 lists the equipment required to calibrate the
IPT2. This equipment is not supplied with the unit and
must be provided by the user.

Purposes

Adjustable current source

DC milliammeter

Instrument air supply

Air pressure gauge

Air pressure gauge

Phone tip probes (2)

Pneumatic test coupler
MII P/N 163-202-00

Pneumatic load

0-50mA output

Accurate to ±0.05%

Filtered

Accurate to ±2%

Accurate to ±0.1%

Must have 2mm (0.8 in) diameter tips, .5 inch long

2

For IPT

s with optional test jacks

Volume of 7.5 cubic inches (approx. 120 milliliters)

Simulate input signal

Measure input signal

Air supply

Measure air supply pressure

Measure output pressure

Easy access to input signal (optional)

Easy monitoring of output pressure (optional)

Provide standard load for testing (per IEC spec. #770)

The Interface Solution Experts 7

IPT

IPT

CURRENT/PRESSURE
TRANSMITTER

+IN –IN

P

2

+T

–T

Adjustable

Current

Source

Load

(See

Table 2)

M2

M1

Regulated
Instrument

Air Supply

+

–

Pressure

Gauge

±0.1%

Pressure

Gauge

±2%

Pressure

Out

Pressure

In

+IN

–IN

+T

–T

2

Test Jacks

The +T and –T test jacks on the front of the IPT2
are provided as a convenient means of monitoring
the process loop to which the product is connected
without disconnecting the unit or interrupting the loop.

A milliammeter connected to the +T and –T test jacks
will provide a reading in the range of the unit's output
rating (Figure 3). The model number of the IPT

2

shows its output range.

Caution:

The maximum resistance the milliammeter can

introduce into the test jack circuit and still provide

accurate readings is 10Ω.

If the milliammeter readings are not as anticipated,
verify that the milliammeter is rated for no more than
10Ω impedance. If the unit is suspect of improper
operation, remove it from the test jacks and calibrate

the IPT

2

.

Calibration Setup

Figure 3 is an illustration of a typical calibration setup,
including optional equipment. To check or calibrate
the IPT

2

, connect the unit as shown in this illustration.

Calibration Procedure

There are two options shown in Figure 3 for
monitoring the output of the IPT2. The input current
may be measured by placing a milliammeter in
series with the input terminals as indicated by M1
or connected across the electrical test jacks by a
milliameter of less than 10Ω impedance (+T and -T)
as indicated by M2.

1. For zero adjustment, connect an adjustable

current source to the electrical input terminal
block. Set the current input signal for zero
percent output (e.g. 4mA for a 4-20mA input,
3-15psig output; 20mA for a 4-20mA input, 15­3psig reverse output).

Note:

Observe that the red LED indicator on

the front panel is illuminated at zero input

current and glows somewhat brighter with

increasing current.

2. Using an air pressure gauge to measure the input

air supply pressure, connect a fi ltered air supply
to the pneumatic supply port located on the
bottom or rear of the unit.

3. If the unit is supplied with the optional front-

access pneumatic-output test jack, insert
the pneumatic coupler into the receptacle.
This avoids having to disturb any operating
connections or fi ttings.

Figure 3. Calibration Setup

8 The Interface Solution Experts

IPT

2

Caution:

Coupler must be kept lubricated to prevent

damage to O-rings in test jacks. Tefl on

lubricant is recommended. If grease is used,

keep out of air passage.

If the unit is not supplied with the output test jacks, use
an air pressure gauge to measure the output air supply
pressure (e.g., read 3psig for a 3-15psig unit or 15psig
for a 15-3psig unit).

4. Any deviation in the output pressure (e.g., 3 psig
for a 3-15 psig unit or 15 psig for a 15-3 psig unit),
can be corrected by using the Zero potentiomenter
in a range of ±10%.

5. Set the current input signal for 100 percent output
(e.g. 20mA for a 4-20mA input, 3-15psig output;
4mA for a 4-20mA input, 15-3psig reverse output).

6. Any deviation in the output pressure (e.g., 15 psig
for a 3-15 psig unit or 3 psig for a 15-3 psig unit),
can be corrected by the Span potentiometer over
the range of ±10%.

7. Repeat steps 1 through 6 (as applicable) until no
further adjustments are required.

Installation

Installation of the IPT2 is divided into three phases:
mounting, electrical connections, and pneumatic con­nections. In most cases, it is easier to mount the IPT2
before completing the electrical and pneumatic con­nections.

Mounting

Individual IPT2s consist of two parts: the transmitter
and the mounting block. Units without a mounting
block snap onto a header. IPT
are rail mounted. Ensure that the unit is mounted in
an area free of dust, moisture, and corrosive elements.
See Figure 4 for mounting dimensions.

It is recommended that mounting blocks and headers
be purged of any debris prior to mounting the IPT
sert a small diameter, blunt tip probe into the fi tting and
unseat the ball-check valves for a few minutes with the

fi ltered instrument air supply in operation.

Rack- or surface-mounted IPT
with a Moore Industries' rack-mounted header (RIR) or
a surface-mounted header (SIR). This eliminates the
need for an interlocking mounting block and rail. 5, 10
or 15 units can be snapped onto one header, allowing
multiple units to receive supply air from one supply
pipe. To mount an IPT
into place until the retaining lever snaps up fl ush be­neath the handle. To remove an IPT2, press down on
the retaining lever and lift the unit out by the handle.

2

onto a header, push the unit

Note:

2

s with a mounting block

2. In-

2

s should be ordered

Note:

Check valves in the headers prevent the loss of
supply or output air during mounting or removal

of IPT

2s.

Rail-mounted IPT2s must use a pneumatic mounting
block. Pneumatic mounting blocks are 1.39 inches
wide. Using a 0.17 inch wide gauge between blocks
provides uniform spacing while occupying minimum
rail length.

The Interface Solution Experts 9

IPT

2

Installation in Hazardous Locations

This section contains important information regarding
installation of the IPT

This equipment is suitable for use in Class I, Division
2, Groups A, B, C & D or non-hazardous locations
only. Field wiring shall be rated for 85˚C.

WARNING: Explosion Hazard. Do not disconnect
equipment when a fl ammable or combustible
atmosphere is present.

AVERTISSEMENT: Risque d’explosion. Ne pas
débrancher tant que le circuit est sous tension,
a moins qu’il ne s’ agisse d’un emplacement non
dangereux.

WARNING: Explosion Hazard. Substitution of
components may impair suitability for Class I,
Division 2.

AVERTISSEMENT: Risque d’explosion. La substitution
de composants peut rende ce materiel inacceptable
pour les emplacements de Classe I, Division 2.

WARNING: Explosion Hazard. Test Jacks (-T and
+T) shall not be connected or disconnected when a
fl ammable or combustible atmosphere is present.

2

in Hazardous Area Locations.

Special Conditions of Use

The following instructions must be adhered to when
the IPT2 is used in hazardous locations and potentially
explosive atmospheres.

The IPT
enclosure, mounting, spacing and segregation
requirements of the ultimate application.

2

shall be installed in compliance with the

Australia New Zealand ANZEx
Installations

Certifi cate No.: ANZEx 09.3000X

Nonincendive, Type n application (Ex n)
Marking Code: Ex n IIC T6@55°C
Maximum Input Voltage Ui 30V
Maximum Input Current Ii 110mA

Standards:
AS/NZS 60079.0:2005 Explosive atmospheres ­Equipment - General requirements

AS/NZS 60079.15:2006 Explosive atmospheres ­Equipment protection by type of protection ‘n’

Electrical Connections

The electrical connections are made to the removable
terminal blocks located on the front of the unit. There
are two terminals on the IPT
current.

The electrical terminals are compression screw
sockets that accept 22 to 14 AWG hookup wire. To
complete these connections, use a slotted screwdriver
with a head approximately 0.125 inch (3mm) in width
to secure the wire leads to the transmitter. Loosen
each screw prior to inserting the wire being terminated.
Strip and then tin the end of each wire with 60/40
solder. Then, while holding the uninsulated end of the
wire in place, tighten the screw of the corresponding
terminal.

2

for connecting input

Recommended Ground Wiring Practices

Moore Industries recommends the following ground
wiring practices:

The IPT2 shall be mounted in a tool secured enclosure
when installed in a Class I, Division 2 location.

The test jacks (-T and +T) shall not be used when the

2

IPT

is installed in a Class I, Division 2 location.

10 The Interface Solution Experts

• Any Moore Industries product in a metal case
or housing should be grounded.

• The protective earth conductor must be connected
to a system safety earth ground before making
other connections.

• All input signals to, and output signals from, Moore
Industries’ products should be wired using a
shielded, twisted pair wiring technique. Shields
should be connected to an earth or safety ground.

• For the best shielding, the shield should be run all
the way from the signal source to the receiving
device. (see Note below)

• The maximum length of unshielded input and
output signal wiring should be 2 inches.

Note:

Some of Moore Industries’ instruments can be

classifi ed as receivers (IPT

2

, IPX2, etc.) and some can

be classifi ed as transmitters (TRX, TRY, etc.) while

some are both a receiver and a transmitter (SPA

2

,

HIM, etc). Hence, your shield ground connections

should be appropriate for the type of signal line being

shielded. The shield should be grounded at the

receiver and not at the signal source.

CE Conformity

Installation of any Moore Industries’ products that
carry the CE marking must adhere to the
guidelines in the Recommended Ground Wiring
Practices section in order to meet the EN 61326
requirements set forth in the applicable EMC
directive.

IPT

Pneumatic Connections

Supply air must be clean, dry instrument air. It is

recommended that all particles larger than 1 micron

be removed. Use of ¼-inch tubing allows suffi cient

air for one unit. When using RIR or SIR headers,

up to 30 IPT

without degrading performance, provided the air

supply pressure is suffi cient. Output tubing should

be ¼-inch, though larger tubing may be desirable for

exceptionally long runs. Purge the output tubing and

the controlled device before connecting to the IPT

RIR/SIR.

Output air cycles back through the IPT
Contamination in the output line or controlled
device may easily enter and damage the IPT

2

s may be run from a ¾-inch NPT pipe

Caution:

2.

2

2.

or

2

Figure 4. Mounting Dimensions

FRONT VIEW

2

IPT

CURRENT/PRESSURE
TRANSMITTER

Electrical Test Jack & LED

for 2mm (0.8 in) Dia.

Phone Tip Plug Used in:

-FA3, -FA4, -FA8, -FA10,

-FA11 and -FA12

10mm

(0.395 in)

–FA1

–FA2
–FA3
–FA4
–FA5
–FA6
–FA7
–FA8
–FA9

LED & Current

Test Jacks

Ye s

Ye s
Ye s

Ye s
None
None

Ye s

Ye s
None
None
None
None

Option

–FA10
–FA11
–FA12

+T

(0.78 in)

Electrical Input

Location

Fron t

Fron t
Fron t
Fron t
Fron t
Fron t
Fron t
Fron t
Fron t
Fron t
Fron t
Fron t

39mm

(1.54 in)

SPAN

ZERO

19mm

+IN –IN

Span Adj.

Zero Adj.

Pneumatic Test Jack
Used in options:

–T

-FA3, -FA4, -FA8,

-FA10, -FA11
and -FA12

Current is Present

Pneumatic Output

Supply Location

Bottom

Bottom

Bottom

No mounting block
No mounting block
No mounting block
No mounting block

Bottom

Red LED "ON"

When Input

Rear

Rear

Rear

Rear

-FA7, -FA8, -FA9, and -FA10

(4.83 in)

Pneumatic Test

Jack Location

None

None
Fron t
Fron t
None
None
None
Fron t
None
Fron t
Fron t
Fron t

Used in options:

123mm

SIDE VIEW

96mm

(3.80 in)

Mounting Block

Bottom Access Location for

Pneumatic Connections,
1/8 NPT Used in options:

-FA1, -FA3, -FA5, and -FA11

12mm

(0.45 in)

13mm

(0.54 in)

85mm

(3.375 in)

8mm

(0.32 in)

Rear Access Location for

Pneumatic Connections,
1/8 NPT Used in options:

-FA2, -FA4, -FA6, and -FA12

The Interface Solution Experts 11

IPT

2

Operation

Reverse output operation:

Once adjusted and installed, the IPT2 operates
unattended, except for occasional cleaning of the air
supply fi lters.

If a malfunction is isolated to the IPT2, refer to the
Troubleshooting section for recommendations. A unit
may become warm during operation, especially where
the ambient temperature is elevated. This is normal
and should not be cause for alarm.

The high-performance line of I/P transmitters
utilizes an internal feedback loop to ensure accurate
operation. The feedback loop consists of an internal
pressure transducer that samples the unit’s output
pressure and compares it to the input signal. This
allows the unit’s output to track the input signal.

Since the feedback loop requires power to operate,
when there is no input power to the unit, the
pneumatic output will be shut off . Units that use
mechanical positioning only, will typically still have a
pneumatic output when power is removed.

This is not an issue except for those users that rely on
this elevated output (18PSIG) to maintain a valve’s
position upon the unexpected loss of input signal
(4-20mA). In such cases, the IPT
shutting off the pneumatic output.

2

reacts diff erently by

Maintenance

After the IPT2 has been installed into the application,
no maintenance is required.

However, the IPT2 is equipped with a plunger to clean
the orifi ce. To use the orifi ce-plunger, depress the
plunger located on the side of the unit. This pushes
a stainless steel wire through the orifi ce and removes
any particles lodged inside. The output pressure will
fl uctuate when the plunger is activated.

If the plunger does not fi x the problem, the supply
air fi lter screen should be removed and fl ushed with
trichloroethance (TCE) and then air dried before
replacement. Follow the directions below.

1. Remove the IPT2 from the mounting block by
pressing down on the locking lever and pulling
straight out to disengage the pneumatic fi ttings.

2. To remove the supply air fi lter screen, fi rst slide
the nozzle retainer clip to the right and then pull
the nozzle out of the main body.

3. Remove the fi lter screen and fl ush with TCE and
air dry before reinstalling.

4. Slide the nozzle back into the main body.

Troubleshooting

Many components of the IPT2 have been thermally
aged, tested, and selected using a computer-aided
design program. This usually makes fi eld repair
unnecessary. It is therefore recommended that any
unit found to be performing below specifi cations
be returned to the factory in accordance with the
instructions found on the back cover of this manual.

If a problem is suspected with the IPT
following steps:

1. Make sure that all connections are clean and
tight.

2. Verify that bench instruments used to take
measurements have the proper range and
accuracy and are currently certifi ed.

3. Check that the bleed-air port (located in a slot on
the right side panel) is not restricted.

4. Using a test jumper, connect one end to the
metal case and the other end to an "IN" terminal
while observing the output pressure. The output
pressure should not change.

5. If a change in the relationship between the input
and the output occurs, try to correct it by re­adjusting the Zero and Span controls.

6. If the response time lengthens or the span drops,
this may indicate a blockage due to air supply
contamination. Clean the orifi ce and the supply
air fi lter as described in the Maintenance section.

2

, review the

12 The Interface Solution Experts

RETURN PROCEDURES

To return equipment to Moore Industries for repair, follow these four steps:

1. Call Moore Industries and request a Returned Material Authorization (RMA) number.

Warranty Repair –

If you are unsure if your unit is still under warranty, we can use the unit’s serial num­ber to verify the warranty status for you over the phone. Be sure to include the RMA
number on all documentation.

Non-Warranty Repair –

If your unit is out of warranty, be prepared to give us a Purchase Order number when
you call. In most cases, we will be able to quote you the repair costs at that time.
The repair price you are quoted will be a “Not To Exceed” price, which means that the
actual repair costs may be less than the quote. Be sure to include the RMA number on
all documentation.

2. Provide us with the following documentation:
a) A note listing the symptoms that indicate the unit needs repair
b) Complete shipping information for return of the equipment after repair
c) The name and phone number of the person to contact if questions arise at the factory

3. Use suffi cient packing material and carefully pack the equipment in a sturdy shipping con­tainer.

4. Ship the equipment to the Moore Industries location nearest you.

The returned equipment will be inspected and tested at the factory. A Moore Industries rep­resentative will contact the person designated on your documentation if more information is
needed.

The repaired equipment, or its replacement, will be returned to you in accordance with the
shipping instructions furnished in your documentation.

WARRANTY DISCLAIMER

THE COMPANY MAKES NO EXPRESS, IMPLIED OR STATUTORY WAR­RANTIES (INCLUDING ANY WARRANTY OF MERCHANTABILITY OR
OF FITNESS FOR A PARTICULAR PURPOSE) WITH RESPECT TO ANY
GOODS OR SERVICES SOLD BY THE COMPANY. THE COMPANY DIS­CLAIMS ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING
OR TRADE USAGE, AND ANY BUYER OF GOODS OR SERVICES FROM
THE COMPANY ACKNOWLEDGES THAT THERE ARE NO WARRANTIES
IMPLIED BY CUSTOM OR USAGE IN THE TRADE OF THE BUYER AND
OF THE COMPANY, AND THAT ANY PRIOR DEALINGS OF THE BUYER
WITH THE COMPANY DO NOT IMPLY THAT THE COMPANY WARRANTS
THE GOODS OR SERVICES IN ANY WAY.
ANY BUYER OF GOODS OR SERVICES FROM THE COMPANY
AGREES WITH THE COMPANY THAT THE SOLE AND EXCLUSIVE REM­EDIES FOR BREACH OF ANY WARRANTY CONCERNING THE GOODS
OR SERVICES SHALL BE FOR THE COMPANY, AT ITS OPTION, TO
REPAIR OR REPLACE THE GOODS OR SERVICES OR REFUND THE
PURCHASE PRICE. THE COMPANY SHALL IN NO EVENT BE LIABLE
FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES EVEN IF THE
COMPANY FAILS IN ANY ATTEMPT TO REMEDY DEFECTS IN THE GOODS
OR SERVICES , BUT IN SUCH CASE THE BUYER SHALL BE ENTITLED
TO NO MORE THAN A REFUND OF ALL MONIES PAID TO THE COMPANY
BY THE BUYER FOR PURCHASE OF THE GOODS OR SERVICES.

United States • [e-mail]

Tel: [phone] • FAX: [phone]

Australia • [e-mail]

Tel: [phone] • FAX: [phone]

ANY CAUSE OF ACTION FOR BREACH OF ANY WARRANTY BY
THE COMPANY SHALL BE BARRED UNLESS THE COMPANY RE­CEIVES FROM THE BUYER A WRITTEN NOTICE OF THE ALLEGED
DEFECT OR BREACH WITHIN TEN DAYS FROM THE EARLIEST DATE
ON WHICH THE BUYER COULD REASONABLY HAVE DISCOVERED
THE ALLEGED DEFECT OR BREACH, AND NO ACTION FOR THE
BREACH OF ANY WARRANTY SHALL BE COMMENCED BY THE
BUYER ANY LATER THAN TWELVE MONTHS FROM THE EARLIEST
DATE ON WHICH THE BUYER COULD REASONABLY HAVE DISCOV­ERED THE ALLEGED DEFECT OR BREACH.

RETURN POLICY

For a period of thirty-six (36) months from the date of shipment, and under
normal conditions of use and service, Moore Industries ("The Company")
will at its option replace, repair or refund the purchase price for any of its
manufactured products found, upon return to the Company (transportation
charges prepaid and otherwise in accordance with the return procedures
established by The Company), to be defective in material or workmanship.
This policy extends to the original Buyer only and not to Buyer's customers
or the users of Buyer's products, unless Buyer is an engineering contractor
in which case the policy shall extend to Buyer's immediate customer only.
This policy shall not apply if the product has been subject to alteration,
misuse, accident, neglect or improper application, installation, or operation.
THE COMPANY SHALL IN NO EVENT BE LIABLE FOR ANY INCIDENTAL
OR CONSEQUENTIAL DAMAGES.

Belgium • [e-mail]

Tel: [phone] • FAX: [phone]
The Netherlands • [e-mail]

Tel: [phone] • FAX: [phone]

China • [e-mail]

Tel: [phone] • FAX: [phone]

United Kingdom • [e-mail]

Tel: [phone] • FAX: [phone]

Specifi cations and Information subject to change without notice.© 2016 Moore Industries-International, Inc.