Moore Inductries IPH2, IPX2 User Manual

2

2

December 2016
170-775-00G

IPH

& IPX

Current-to-Pressure

(I/P) Transmitters

Transmitters

Current-to-Pressure

(I/P)

2

& IPX

2

IPH

2

IPH

Current-to-Pressure
(I/P) Transmitters

&

2

IPX

Table of Contents

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

The IPH2 & IPX2 ..................................................................................................3

Specications .....................................................................................................4

IPX2 Dimensional Diagram .................................................................................5

IPH2 Dimensional Diagram ................................................................................6

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

Necessary Equipment and Calibration Preparation .............................................................7

Calibration Process .......................................................................................................... 7-9

Installation .........................................................................................................10

Phase One: Mounting ........................................................................................................10

Phase Two: Electrical Connections ....................................................................................10

Phase Three: Pneumatic Connections ...............................................................................11

Hazardous Location Applications ................................................................... 12

Operation ...........................................................................................................13

Maintenance ...................................................................................................... 13

Troubleshooting the IPH2 & IPX2 .....................................................................14

2

IPX

Customer Service ............................................................................................. 15

Intrinsically Safe Diagram................................................................................16

Return Procedures .......................................................................................... 19

Replacement Modules .............................................................................14

2 Demand Moore Reliability

IPH

2

&

IPX

2

Current-to-Pressure

(I/P) Transmitters

Introduction

This users’ manual for Moore Industries’ IPH2 and
IPX2 Current-to-Pressure Transmitters contains all
of the information that is needed to calibrate, install,
operate, maintain, and troubleshoot this family of
transmitters.

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.

About this Manual

Wherever you see a “WARNING”, “Caution”
or “Note” pay particular attention.

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.

IPH2 & IPX

The rugged IPH2 and IPX2 Current-to-Pressure (I/P)

Transmitters are designed specically for extended
duty in harsh eld environments. Being Type
3X/4X- and IP56/IP66-rated, the extruded aluminum

housings, for both the IPH2 and IPX2, o󰀨er water
and dust protection and are also highly resistant to
corrosion and chemicals. In addition, while the air and
natural gas versions of the IPX2 are explosion-proof,
the later o󰀨ers an increased ingress protection of IP66.

These 2-wire (loop-powered) transmitters convert
a current signal to a pneumatic signal so that an
electronic-based system such as a DCS, PLC, or PC
can control a pneumatic actuator, valve, or damper
drive. Available models accept a wide range of current
inputs (4-20mA, 4-12mA, and 12-20mA) and provide a
proportional pneumatic signal (3-15psig, 0.2-1Bar,
20-100kPA, etc.). A reverse pneumatic output option
is available for the IPH2. Reverse output is switch
selectable on new versions of the IPX2 (introduced in

2013).

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. Other
I/P transmitters, such as our original IPT, IPH and IPX
models, rely solely on mechanical positioning.

Since the feedback loop requires power to operate,
when there is no input power to the unit, the pneumatic

output will be shut o󰀨. Units that use mechanical

positioning only, will typically still have a pneumatic

output when power is removed. By example, a unit

(IPT, IPH and IPX) with an output range of 15 - 3PSIG

will output approximately 18PSIG when the input
signal 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,
IPH2 and IPX2 units react di󰀨erently by shutting o󰀨 the
pneumatic output.

Both units are available with an optional coalescing
lter/regulator that combines an air lter and miniature

supply line regulator with a pressure gauge that reads

in both psi and Bars.

2

Demand Moore Reliability 3

2

IPH

&

IPX

Current-to-Pressure
(I/P) Transmitters

Specifications

2

Performance

Accuracy: <±0.25% of span

including the combined e󰀨ect

of linearity, hysteresis and
repeatability (between
0 and 3psig 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 100ml load

3

(6 in

) from 10% to 90% of
span; Not guaranteed below
3psig output
Supply Pressure E󰀨ect:
Negligible from 20-40psig,
steady pressure
Air Capacity:

5.0SCFM minimum (20psig
supply, 0psig output)

Relief Capacity: 2.5SCFM
minimum (15psig output)
Air Supply: Instrument air
only, 20-40psig.

Gas Supply with -NG1 or

-NG2 Option: 17-40psig.

Same cleanliness as
instrument air. H
exceed 20ppm

Maximum Input: 80psig

without damage for units with
output pressure rating of
>15psig; 45psig without
damage for units with output

pressure rating of ≤ 15psig

S not to

2

Performance

(Continued)

Voltage Drop:
5V, maximum
Air Consumption
(Dead-ended):

At 3-15psig output 20psig
supply, average steady state
consumption* of 4.7SCFH

(min 4.2SCFH@ 3psig, max

5.2SCFH@15psig);

40psig supply, max 9SCFH

@15psig output;

40psig supply, max 10SCFH

@30psig output

Natural Gas Consumption
(Dead-ended):

At 3-15psig output 20psig
supply, average steady state
consumption* of 5.7SCFH,

(min 5.1SCFH@ 3psig, max

6.2SCFH@15psig);

17psig supply, max 5.9SCFH

@15psig output;

40psig supply, max 12SCFH

@30psig output;
Mounting Position E󰀨ect:
Negligible, unit can be
mounted in any position;
refer to user manual for
special conditions of use with
natural gas supply or outdoor
environments.

Ambient

Conditions

Adjustment

Weight

*Average ow rate determined at 9 psig output

Operating & Storage
Range:

-40°C to +85°C
(-40°F to +185°F)

Ambient Temperature

E󰀨ect: <±0.025% of

span/°C, maximum from

-20°C to 80°C;

<±0.1% of span/°C,
maximum
RFI/EMI E󰀨ect:
<±0.25% of span change

at in eld strengths of

10V/m@ frequencies of
20-1000MHz

Vibration E󰀨ect: Meets

ANSI/ISA-75 13.01-1996
(R2007) 5.3.5 as follows:

5-15Hz, 2mm peak-to­peak; 15-150Hz, 1g;
150-2000Hz, 0.5g
Relative Humidity:
0-100%, non-condensing

Zero & Span: Screw
adjusts zero or span by
±10% minimum, non­interactive

2

IPH

: 1.14kg (2.5 lbs)

IPX2: 2.4kg (5.3 lbs)

Specifications and information subject to change without notice.

4 Demand Moore Reliability

IPH

2

&

IPX

2

Current-to-Pressure

(I/P) Transmitters

Figure 1. IPX 2 Current-to-Pressure Transmitter Housing Dimensions

VENT

OUT

OUT

Instrument Tag

Manual override &

filter holder

Both side fittings are

permanently attached.

Do not attempt to remove.

(They may be installed on

either side of the unit by

the factory)

Natural gas vent (-NG option)

See Pneumatic Connections section

166

(6.5)

117

(4.6)

154

(6.1)

Manual override &

filter holder

125

(4.9)

70

(2.8)

70

(2.8)

154

(6.1)

102

(4.0)

117

(4.6)

-FR1 Option

-GA Option

Instrument
Tag

Pneumatic
input port
1/4 NPT
female

Pneumatic
output port
1/4 NPT
female

Open vent
(air model only)

200

(7.9)

239

(9.4)

89

(3.5)

NG

Option

Demand Moore Reliability 5

2

33mm

(1.3 in)

1/4 NPT FEMALE

PNEUMATIC OUTPUT

PORT (COVERED BY

OPTIONAL –GA

OUTPUT GAUGE)

137mm

(5.4 in)

86mm

(3.4 in)

MANUAL OVERRIDE

& FILTER HOLDER

72mm

(2.9 in DIA.)

76mm

(3.0 in)

REF.

69mm

(2.7 in)

16mm

(0.65 in)

51mm

(2.0 in)

83mm

(3.3 in)

1/4 NPT

FEMALE

PNEUMATIC

INPUT

PORT

163mm
(6.4 in)

135mm
(5.3 in)

WITH –FR1 OPTION

1/4 NPT FEMALE

PNEUMATIC INPUT

PORT (UNUSED PORT

IS PLUGGED)

CONDUIT WIRE ENTRY

METRIC (M20 x 1.5)

OR NPT (1/2-14)

THREADS

99mm

(3.9 in)

-P OPTION

2 INCH PIPE

MOUNTING

BRACKET

1/4 NPT
PNEUMATIC
INPUT PORT
FOR OPTIONAL
–FR1 FILTER/
REGULATOR/
GAUGE

76mm

(3.0 in)

25mm

(1.0 in)

IPH

&

2

IPX

Current-to-Pressure
(I/P) Transmitters

Figure 2. IPH 2 Current-to-Pressure Transmitter Housing Dimensions

6 Demand Moore Reliability

IPH

2

&

IPX

2

Current-to-Pressure

(I/P) Transmitters

Calibration

Every IPH2 and IPX2 is fully tested and calibrated at the
factory prior to shipment. However, before installation,
your IPH2 or IPX2 should be bench-checked to verify
the desired unit zero and unit span. Calibration should
be conducted in an appropriate testing environment.

Necessary Equipment

Table 1 lists the equipment required to calibrate
the unit. This equipment is not supplied by Moore
Industries, but should be available in most labs or
maintenance areas.

Table 1. IPH 2 & IPX 2 Calibration Equipment

Adjustable current source

DC Multimeter

Instrument air supply

Air pressure gauge #1

Air pressure gauge #2

Pneumatic load

Equipment

4-20mA output

Accurate to ±0.05%

Filtered

Accurate to ±2%

Accurate to ±0.1%

Volume of 7.5 cubic inches

(approx. 120 milliliters)

Description

Note:

Always use clean, dry, instrument air when

calibrating or operating the IPH 2 or IPX 2.

All pneumatic lines used in calibration and operation
must be “blown down” (purged) prior to connection to
the unit. Any condensation or oil residue in the lines,
if introduced into the pneumatic chambers of the unit,
may result in poor unit performance.

Calibration Process

To perform the recommended bench-check for the
IPH2 or IPX2, rst perform the setup as described in

the next section. See Figures 3 and 4 for illustrations

of the Calibration Setup, then follow the steps under
Calibration Setup and Calibrating the IPH2 or IPX2.

Calibration Setup

1. Connect 1/4-inch pneumatic tubing between the
appropriate output port of the regulated instrument
air supply and the pressure gauge #1 (accuracy
of ±2% of span). Connect another tube from the
pressure gauge to the port labeled “IN” on IPH2 or
IPX2.

Preparing for Calibration

To prepare the IPH2 or IPX2 for calibration, remove
the screw-on cap and connect the unit to your
conguration equipment as shown in Figures 3 and 4.

Unit Connections and Controls. The IPH2 and IPX2
each have two labeled terminals on their faceplate,
located under the top protective cover of the housing.
The terminal labeled “+PS” is for connection of the
positive current input, and the terminal labeled “–PS”
is for the negative connection.

The two controls are also located inside the unit
housing under the screw-on cap. They consist of
two potentiometers, each accessed through the front
panel. They are labeled “zero” and “span”. The zero

potentiometer provides a control range for o󰀨sets of

±10% of rated unit span, while the span potentiometer
adjusts unit full-scale output to 100 percent of rated
span.

Each potentiometer requires approximately 20 turns
to move its wiper from one extreme to the other:
clockwise for maximum, or counterclockwise for

minimum values. Each is equipped with a slip clutch
to prevent damage if the adjustment is turned beyond
the wiper stop.

2. Connect 1/4-inch pneumatic tubing between the

port labeled “OUT” and the appropriate port of

pressure gauge #2 (accuracy of ±0.1% of span),
then from gauge #2 to the appropriate pneumatic
load.

3. Run current source wiring through conduit opening
in housing, and to the front panel of the IPH2 or
IPX2. (Not necessary for IPX2 –NG models.)

4. Connect positive lead of adjustable current source
to the +PS terminal of unit. Connect negative
source lead to the –PS terminal. (For IPX2 –NG,
connect the positive lead of the current source
to the red wire, and the negative lead of current
source to the black wire.) A multimeter may also
be connected to verify level of current input.

5. When connections are complete, apply an input
current of 0% of span. (i.e. 4mA for a 4-20mA unit)

6. Apply appropriate ltered, instrument-quality air to
supply line: 20 or 35psi (1.4Bar to 2.4Bar). Verify

appropriate supply pressure by checking Supply

Pressure eld of unit model number.

7. Allow approximately 30 seconds for calibration

setup to stabilize.

Demand Moore Reliability 7

2

ZERO

2

-PS

+PS

SPAN

+

_

PNEUMATIC

TEST LOAD

REGULATED

INSTRUMENT

AIR SUPPLY

PRESSURE GAUGE #1

(ACCURACY ±2%)

PRESSURE GAUGE #2

(ACCURACY ±0.1%)

ADJUSTABLE

CURRENT

SOURCE

DC

MULTIMETER

+

_

OUTPUT

PORT

INPUT
PORT

IPH

&

IPX

Current-to-Pressure
(I/P) Transmitters

Figure 3. IPH 2 Calibration Setup

2

Figure 4. IPX 2 Calibration Setup

PRESSURE GAUGE #1

(ACCURACY ±2%)

REGULATED

INSTRUMENT

AIR SUPPLY

NOTE: This shows the new version
of IPX2 introduced in 2013. Previous
versions of IPX2 do not have a direct/
reverse switch and only have one set of
potentiometers. (similar to IPH2 in
Figure 3)

8 Demand Moore Reliability

INPUT

PORT

PS (+) PS (-)

SPAN

ZERO

SELECTABLE OUTPUT

IPX

2

OUTPUT

PORT

SPAN

ZERO

PRESSURE GAUGE #2

_

+

ADJUSTABLE

CURRENT

SOURCE

(ACCURACY ±0.1%)

PNEUMATIC

TEST LOAD

+
_

DC

MULTIMETER

IPH

2

&

IPX

2

Current-to-Pressure

(I/P) Transmitters

Calibrating the IPH2 or IPX

This calibration procedure consists of a basic check
and adjustment of unit zero and span, based on the
reading of pressure gauge #2. To calibrate a direct
output unit, perform the following:

1. For IPX2 new versions (introduced in 2013) only,
check switch is set to “Direct”- see Figure 5.

2

10. Monitor reading of pressure gauge #2 (output),
and adjust span potentiometer so that reading is
at 0% of span for your unit (i.e. 3 psi for a 3-15 psi
unit).

11. Repeat steps 8 through 10 until the unit outputs

100% of rated pressure range at 0% current input,
and 0% of output pressure range at 100% of span.

2. Check unit zero setting. Monitor reading of
pressure gauge #2 (output), and turn zero
potentiometer counterclockwise to lower output,
clockwise to raise output. Set zero potentiometer
so that pressure output is at 0% of span when a
current input of 0% of span is applied. (i.e. 3psi for
a 3-15psi unit)

3. Check unit span setting. Increase input to 100%
of rated span (i.e. 20mA for a 4-20mA unit).

4. Monitor reading of pressure gauge #2 (output),
and adjust span potentiometer so that reading is at
100% of span for your unit (i.e. 15psi for a 3-15psi
unit).

5. Repeat steps 1 through 4 until the unit outputs 0%
of rated pressure range at 0% current input, and
100% of output pressure range at 100% of span.

6. Verify the accuracy of your adjustments by
inputting 0%, 25%, 50%, and 75% of span inputs,
and monitoring the output.

To calibrate a reverse output unit, perform the
following:

12. Verify the accuracy of your adjustments by
inputting 0%, 25%, 50%, and 75% of span inputs,
and monitoring the output.

Note:

New versions of the IPX2 (introduced in 2013) have

a selectable output switch. Be sure to set this switch

to the required output mode, direct or reverse, and

use the corresponding set of pots accordingly.

See Figure 5.

Figure 5. IPX 2 Output Switch

Adjustable Direct
Potentiometers

PS (+) PS (-)

SPAN

ZERO

SELECTABLE OUTPUT

SPAN

2

IPX

ZERO

Selectable Output
Switch

Adjustable Reverse
Potentiometers

2

7. For IPX
check switch is set to “Reverse” - see Figure 5.

8. Check unit zero setting. Monitor reading of

pressure gauge #2 (output), and turn zero
potentiometer counterclockwise to lower output,
clockwise to raise output. Set zero potentiometer
so that pressure output is at 100% of span when a
current input of 0% of span is applied. (i.e. 15 psi
for a 3-15 psi unit).

9. Check unit span setting. Increase input to 100%
of rated span (i.e. 20mA for a 4-20mA unit).

new versions (introduced in 2013) only,

Demand Moore Reliability 9

2

IPH

Current-to-Pressure
(I/P) Transmitters

&

2

IPX

Installation

The installation of the IPH2 or IPX2 is carried out in
three phases: the physical mounting of the unit, the
electrical connections phase, and the pneumatic
connections phase. It is strongly suggested that each
unit be calibrated according to the instructions in this
manual before being placed into service.

Installation in hazardous ‘Classied’ locations and
potentially explosive atmospheres must adhere to the

instructions in the Hazardous Location Applications
section which can be found at the end of this
Installation section.

Phase One: Mounting

Figures 1 and 2 give the dimensions of the IPX2 and
IPH2, respectively. The illustrations also give the
dimensions of the available option hardware, which is
recommended for most installations. After placing the
unit in the desired location and orientation, secure the
housing with the optional pipe mounting hardware or
other appropriate fasteners.

The IPH2 or IPX2 will operate when installed at any
angle–either surface-mounted or attached to pipe or
round conduit. However, there are other considerations
in selecting the ideal mounting position. If the IPH2 is

in an area which may be exposed to rain or water, it

should be mounted within 45° of vertical. In natural
gas applications, where liquid remnants are possible
in the supply, the vent port of the IPX2 needs to be

in a position that would allow for su󰀩cient draining.

Please also consider the requirements in Pneumatics

Connections on the next page before determining the
ideal mounting conguration.

Phase Two: Electrical Connections

To complete the electrical connections, route the wiring
through the conduit port to the terminal block, then
use a screwdriver to loosen the terminal screws. (Not
necessary for IPX2 –NG1 or –NG2 installation.)

For all units except the IPX2 –NG1 or –NG2, connect

positive lead (+) to the +PS terminal, and negative
lead (–) to the –PS terminal. Tighten the terminal
screws until snug.

Caution:

When connecting the IPX 2 Natural Gas (–NG1 or

–NG2) model, use an appropriately certied conduit

box and wire connectors. Do not attempt to remove

the seal tting, as it is necessary for natural gas

certication. Connect the positive lead (+) to the red

wire from the seal tting, and the negative lead (–) to

the black wire from the seal tting.

Use shielded, twisted-pair wiring for low-level input.

Ground the shielding wire as close as possible to the
installed unit.

Recommended Ground Wiring
Practices

Moore Industries recommends the following ground
wiring practices:

• 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

classied as receivers (IPT2, IPX2, etc.) and some

can be classied as transmitters (TRX, TRY, etc.)

while some are both a receiver and a transmitter

(SPA2, 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.

10 Demand Moore Reliability

IPH

2

&

IPX

2

Current-to-Pressure

(I/P) Transmitters

Phase Three: Pneumatic Connections

To complete the nal phase of installation, connect the

supply line to the ¼-inch NPT female port labeled “IN”.
Connect the output line to the ¼-inch NPT female port

labeled “OUT”. All tubing must have at least 6mm
(¼-inch) inside diameter or the maximum ow will be

limited.

Note:

Seal all ttings with Teon® tape, or equivalent.

Always “blow down” (purge) all tubing and the

controlled device before connecting the IPH2 or IPX2.

Manual Override Screw

If you are in a potentially explosive environment and

do not want to apply electric power to the unit with
the cover removed, the pneumatic installation may
be tested by loosening the manual override screw on
the bottom of the unit. The output pressure will go to

the supply pressure. Be sure to tighten the manual

override screw after test.

WARNING:

IPX 2 units installed in a natural gas application must

have the natural gas vent properly connected. Follow

the directions below to install an IPX 2 with –NG1 or

–NG2 options into a natural gas application.

Natural Gas Applications

Customers using the IPX2 with –NG1 or –NG2 options
to regulate a sweet natural gas application (H2S levels

are not to exceed 20ppm) must also make the vent

port connections. Connect the Natural Gas Vent
(shown in Figure 1) to a device prepared to receive

natural gas. After connection, the ttings, cover, and
lter/test screw should be tested for leaks.

For an outdoor system, ventilation should consist of a
weather-proofed connection between the transmitter

exhaust and a riser, six feet above the transmitter

and control valve assembly. The riser should be
shepherd-crooked to prevent rain or incident water
from accumulating at the base. In accordance with

local safety regulation, an in-line ame arrestor should
be applied to the riser to prevent ash back to the
transmitter from an external, spontaneous ame

source.

For an indoor system, ventilation must consist of

a leak-proof connection from the exhaust of the

transmitter to a process vent. The process vent

should already be dedicated for natural gas excursions
and should conform to all standards for aring or
after-burn, and ame arrest, as dictated by local

environmental and safety regulations.

Indoor natural gas operations are typically monitored
to maintain safety conformance outside the lower

and upper explosion limits (LEL and UEL). To add

a natural gas operated transmitter in these cases,

consideration should be made as to the extent of

natural gas leak detection legacy to the installed
transmitter. Placement of the transmitter should be
such that detection and alarming surround any critical
connections between the transmitter and the natural
gas process.

If the natural gas driven transmitter is to be installed
indoors with no legacy monitoring capabilities,
additional consideration must be made to ensure the
operating area is well-ventilated and the transmitter

can be exhausted to process vent. Furthermore,

monitoring with remote annunciation within LEL and

UEL should be projected as an upgrade to the facility,

concurrently with this installation. The transmitter
installation must adhere to local environmental and
safety regulations.

WARNING:

IPX 2 units installed in a natural gas application must

have the natural gas vent properly connected. Failure

to do so may result in an explosion. The –FR1 option

should not be used with a ammable gas because it
has a vent to atmosphere. A lter-regulator without a
vent may be used. For natural gas certication to be

valid, the vent system must be able to maintain <1psig.

Filters. The IPH2 and IPX2 requires ltered, dry,
regulated, instrument-quality air to prevent clogging

and to ensure extended periods of maintenance-free

operation. Moore Industries suggests the following

levels of ltering protection:

• Pre-lter – A general purpose “rough” lter, used

to reduce particulate matter to 5 microns in size.
Also removes bulk liquids. Although not required,

this lter is especially recommended to protect the

0.01 micron nal lter when used.

• Final Filter – A second, nal lter is recommended

to remove particulate matter in sizes down to

0.01 micron. This lter removes virtually all

condensable liquids from the air stream as well.

• Filter/Regulator Module Option – A combined
lter/regulator assembly, the -FR1 Option, o󰀨ered

as an accessory for either the IPH2 or IPX2,
removes particles down to 0.01 microns, supplying
regulated, instrument-quality air to the unit. This

space-saving module is a󰀩xed to the supply port,

and comes with a pressure gauge scaled in both

psi (0-60) and Bars (0-4).

Demand Moore Reliability 11

2

IPH

Current-to-Pressure
(I/P) Transmitters

&

2

IPX

Hazardous Location Applications

This section contains important information regarding
installation of IPX2 in hazardous locations.

Classication of the area and installation of the

IPX2 should be done in accordance with applicable

electrical codes such as the United States National

Electrical Code (NEC), and/or any other equivalent/
applicable internationally adopted standards and
installation codes (CEC & IEC).

Refer to the Special Conditions outlined below before
proceeding with installation.

Safety Concerns

For your safety, read the following information carefully
before proceeding with installation.

WARNING:

EXPLOSION HAZARD –

For Division 2 Hazardous locations. DO NOT

Disconnect equipment when a ammable

atmosphere is present.

WARNING:

Substitution of components is not allowed, as it may

impair the intrinsic safety (Zones 0 & 1, Division 1)

of the unit and/or the non-incendive/Type N (Division

2, Zone 2) circuit. DO NOT open the unit when
either energized or when an explosive gas/dust

atmosphere is present. Disconnect power before

servicing. Read and understand the Manufacturer’s

installation and Operating procedures, and adhere

to all applicable electrical codes, safety instructions

and regulations.

Special Conditions of Use

The following instructions must be adhered to when
the Model IPX2 is used in hazardous locations and

potentially explosive atmospheres.

cCSAus Installations

Intrinsically Safe Applications

Class I, Div. 1 & 2, Groups A, B, C & D
Class II & III, Div 1 & 2, Groups E, F, & G

Class1, Zone 0, AEx ia IIC, Ex ia IIC

The Model IPX2 shall be supplied by a Class 2 or

SELV Limited Circuit as dened by CAN/CSA # 1010.1
Annexes F.2.1 and H.

The Model IPX2 must be installed by drawing

100-100-78.

Explosion/Flame Proof Applications

Class I, Division 1, Groups A, B, C & D
Class II & III, Div 1 & 2, Groups E, F, & G

Class I, Zone 1, AEx d IIC, Ex d IIC

The Model IPX2 shall be supplied by a Class 2 or

SELV Limited Circuit as dened by CAN/CSA # 1010.1
Annexes F.2.1 and H.

Nonincendive, Type n Applications

Class I, Division 2, Groups A B, C & D
Class1, Zone 2, AEx nA IIC, Ex nA IIC

The Model IPX2 shall be supplied by a Class 2 or

SELV Limited Circuit as dened by CAN/CSA # 1010.1
Annexes F.2.1 and H.

Avertissement:

Ouvrir le circuit avant d’enlever le couvercle. La

substitution de composants peut compromettre la

sécurité intrinséque. Un scellement doit être installé

à moins de 457mm du boîtier. En Classe 1,

Division 2, ce produit doit être installé conformément

170-775-00.

12 Demand Moore Reliability

Installation of Model IPX2 with the –NG Option in

a Class I, Division 2 classied area requires the

use of wiring and venting methods applicable for

Class I, Division 1 Hazardous ‘Classied’ Locations.

Venting the IPX2 with the –NG Option to an approved

continuous ignition are system, or to a Class I,
Division 1 Hazardous ‘Classied’ Area which provides

minimum back-pressure to the device, must be
utilized. Vent piping and electrical conduits must
be designed and installed using approved good
engineering practices.

IPH

2

&

IPX

2

Current-to-Pressure

(I/P) Transmitters

European Union Installations

(ATEX 2014/34/EU Directive)

Intrinsically Safe Applications - Zone 0

II 1 G Ex ia IIC T4 Ga

be protected from impact.

Intrinsically Safe Applications

Certicate No.: ANZEx 09.3000X

Standards:

AS/NZS 60079.0:2005 Explosive atmospheres -

Equipment - General requirements

The enclosure is manufactured from 6063-T5
Aluminum alloy. In rare cases, ignition sources due
to impact and friction sparks could occur. This shall
be considered during installation, particularly if the
equipment is installed in a Zone 0 location.

The IPX2 has the the following safety parameters when
input terminals are connected to a linear, resistive
barrier:

Ui = 30Vdc, Ii = 110mA, Pi = 0.825W, Ci = 720pF, Li =

5.12µH.

The IPX2 is to be installed per Field Installation

Drawing, 100-100-78.

Flame Proof Applications - Zone 1

II 2 G Ex d IIC T4 Gb

II 2 D Ex tb IIIC T127˚C Db

The stopping plugs must not be used with a thread
adapter/reducer.

Model IPX2 with the –NG Option (Natural Gas as the

input medium) is excluded.

Type n Applications - Zone 2

II 3 G Ex nA IIC

On installation, the Model IPX2 shall be provided with

supply transient protection external to the apparatus

such that the voltage at the supply terminals of the
IPX2 does not exceed 119V peak or 119Vdc.

Model IPX2 with the –NG Option (Natural Gas as the

input medium) is excluded.

AS/NZS 60079.11:2006 Explosive atmospheres -

Equipment protection by intrinsic safety ‘i’

Type n Applications

Certicate No.: ANZEx 09.3000X

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’

Operation

Once the unit has been congured and installed, it
operates unattended with the exception of the minor
maintenance procedures that are described in the next

section.

If the unit is determined to be the cause of a loop
irregularity, carry out the maintenance procedure in the

next section of this manual. If problems persist, refer

to the Troubleshooting Section.

Instrument-quality Air. Air from the application

continuously ows through the IPH2/IPX2 during

operation. Depending upon the purity of the air
supply, the unit’s internal assembly may have to be
removed and cleaned to ensure continued optimum
performance.

Initially, random checks can help establish a
satisfactory internal maintenance geared to the user’s

air supply cleanliness. Refer to the next section for

instruction on the disassembly and cleaning of your
unit.

Australia New Zealand ANZEx
Installations

When the apparatus is used in a Zone 0 environment
it is a condition of safe use that the apparatus shall

Maintenance

For most applications, no maintenance outside of
routine inspection and calibration of the IPH2 or IPX2
will be necessary. These units are designed to work

unattended for up to six months with little change in

accuracy.

Demand Moore Reliability 13

2

Locking screw

IPX

2

SELECTABLE OUTPUT

PS (+) PS (-)

ZERO

SPAN

ZERO

SPAN

Mounting screws

Electronic module

IPH

Current-to-Pressure
(I/P) Transmitters

&

2

IPX

Troubleshooting
the IPH2 & IPX2

If a problem is suspected with the IPH2 or IPX2, review
the following steps:

1. Verify that bench instruments used to take
measurements have the proper range and

accuracy and are within current certication period

limits.

2. If a change in the relationship between the input
and output is detected, attempt a re-calibration of
the unit.

3. If the response time lengthens, or if the span
drops, check the system for a blockage due
to air supply contamination. Please refer to

Maintenance section for details of replacing lters,

electronic modules and drain checking.

If the unit needs to be returned for service, the
complete valve assembly can be removed from
the housing for replacement without disturbing the
connections to the housing. Contact customer service
for details.

the recovery of the unit, by allowing any accumulated

liquid to drain out more e󰀨ectively. To remove the

module follow these steps:

1. Use a 3mm Allen wrench to unlock the cover.

Drive the Allen screws clockwise until the cover
is allowed to rotate freely. Remove the cover by
accessing the locking screw shown in Figure 6.

Figure 6. Unlocking the IPX 2 Cover

2. Use a Phillips head screw driver to remove the

four module mounting screws shown in Figure 7.

Drain Check

System lters (not IPX2/IPH2 lters) have automatic
drains that depend on the uctuation of system

pressure to induce drainage. A stable system may not

drain e󰀩ciently. Check periodically for clogs and drain
system’s lters by pushing the drainage valve with a

small probe or wire.

IPX2 Replacement Modules*

*This applies only to new versions of the IPX2
introduced in 2013.

In abnormal operating conditions in which a slug
(liquid) is present in the IPX2 air/ gas supply, the
electronic module may be removed. This can help in

Figure 7. Removing Mounting Screws

3. Carefully, pull the module from the housing. The
pneumatic stem, found on the bottom of the

module, is fragile; handle with care. See Figure 8.

14 Demand Moore Reliability

IPH

2

&

IPX

2

Current-to-Pressure

(I/P) Transmitters

Figure 8. Removing Module from Housing

Item P/N Description Qty

1 208-876-00 Module 1

1

Barrier
plate

Customer Service

Moore Industries is recognized as the industry leader
in delivering top quality to its customers in products
and services. We perform a battery of stringent
quality assurance checks on every unit we ship. If any
Moore Industries product fails to perform up to rated

specications, call us for help. Our highly skilled sta󰀨

of trained technicians and engineers pride themselves
on their ability to provide timely, accurate and practical
answers to your process instrumentation questions.

Factory phone numbers are listed on the back cover of
this manual.

If problems involve a particular IPH2/IPX2, there are
several pieces of information that can be gathered

before you call the factory that will help our sta󰀨 get

the answers you need in the shortest time possible.
For fastest service, gather the complete model and
serial number(s) of the problem unit(s) and the job
number of the original sale.

4. Inspect the module and the barrier plate for any

signs of contamination. Remove any excess liquid

and allow to dry before replacing. The electronic

module is not eld-serviceable. If irreparable

damage is found, it may be replaced. See Data
Sheet for ordering information.

5. To re-assemble, replace the module using locating
pins (see step 3), tighten the 4 module screws
(see step 2), replace the cover and secure with the
locking screw (step 1).

6. Recalibrate the unit before returning to service.
Refer to the Calibration Section of this manual for
instructions.

Demand Moore Reliability 15

2

IPH

Current-to-Pressure
(I/P) Transmitters

&

2

IPX

16 Demand Moore Reliability

IPH

2

&

IPX

2

Current-to-Pressure

(I/P) Transmitters

Demand Moore Reliability 17

2

IPH

Current-to-Pressure
(I/P) Transmitters

&

2

IPX

18 Demand Moore Reliability

RETURN PROCEDURES

United States • [e-mail]

Tel: [phone] • FAX: [phone]

Australia • [e-mail]

Tel: [phone] • FAX: [phone]

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]

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 su󰀩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.

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.

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