Moore Inductries IPH2 User manual

IPH
2&IPX 2
IPH
2&IPX
2
December 2016
170-775-00G
Current-to-Pressure (I/P)
Transmitters
Current-to-Pressure
(I/P) Transmitters

2 Demand Moore Reliability
IPH
2 &IPX 2
Current-to-Pressure
(I/P) Transmitters
Table of Contents
Introduction.........................................................................................................3
The IPH2& IPX2..................................................................................................3
Specications .....................................................................................................4
IPX2Dimensional Diagram.................................................................................5
IPH2Dimensional 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
IPX2 Replacement Modules .............................................................................14
Customer Service.............................................................................................15
Intrinsically Safe Diagram................................................................................16
Return Procedures .......................................................................................... 19

Demand Moore Reliability 3
IPH
2 &IPX 2
Current-to-Pressure
(I/P) Transmitters
Introduction
This users’ manual for Moore Industries’ IPH2and
IPX2Current-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& IPX2
The rugged IPH2and IPX2Current-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 IPH2and 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,
IPH2and 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.

4 Demand Moore Reliability
IPH
2 &IPX 2
Current-to-Pressure
(I/P) Transmitters
Performance
Specifications
Performance
(Continued)
Ambient
Conditions
Specifications and information subject to change without notice.
Adjustment
Weight
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
(6 in3) 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. H2S not to
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
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.
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-to-
peak; 15-150Hz, 1g;
150-2000Hz, 0.5g
Relative Humidity:
0-100%, non-condensing
Zero & Span: Screw
adjusts zero or span by
±10% minimum, non-
interactive
IPH2: 1.14kg (2.5 lbs)
IPX2: 2.4kg (5.3 lbs)
*Average ow rate determined at 9 psig output

Demand Moore Reliability 5
IPH
2 &IPX 2
Current-to-Pressure
(I/P) Transmitters
Figure 1. IPX 2Current-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

6 Demand Moore Reliability
IPH
2 &IPX 2
Current-to-Pressure
(I/P) Transmitters
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)
Figure 2. IPH 2Current-to-Pressure Transmitter Housing Dimensions

Demand Moore Reliability 7
IPH
2 &IPX 2
Current-to-Pressure
(I/P) Transmitters
Table 1. IPH 2& IPX 2Calibration Equipment
Equipment
Adjustable current source
DC Multimeter
Instrument air supply
Air pressure gauge #1
Air pressure gauge #2
Pneumatic load
Description
4-20mA output
Accurate to ±0.05%
Filtered
Accurate to ±2%
Accurate to ±0.1%
Volume of 7.5 cubic inches
(approx. 120 milliliters)
Calibration
Every IPH2and IPX2 is fully tested and calibrated at the
factory prior to shipment. However, before installation,
your IPH2or 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.
Preparing for Calibration
To prepare the IPH2or 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 IPH2and 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.
Note:
Always use clean, dry, instrument air when
calibrating or operating the IPH2or 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
IPH2or 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 IPH2or 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 IPH2or
IPX2.
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 IPH2or
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.

8 Demand Moore Reliability
IPH
2 &IPX 2
Current-to-Pressure
(I/P) Transmitters
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
Figure 4. IPX 2Calibration Setup
IPX2
SELECTABLE OUTPUT
ZERO
SPAN
ZERO
SPAN
PS (+) PS (-)
PNEUMATIC
TEST LOAD
REGULATED
INSTRUMENT
AIR SUPPLY
PRESSURE GAUGE #1
(ACCURACY ±2%)
PRESSURE GAUGE #2
(ACCURACY ±0.1%)
+_
ADJUSTABLE
CURRENT
SOURCE
INPUT
PORT
OUTPUT
PORT
DC
MULTIMETER
+
_
NOTE: This shows the new version
of IPX2introduced in 2013. Previous
versions of IPX2do not have a direct/
reverse switch and only have one set of
potentiometers. (similar to IPH2in
Figure 3)
Figure 3. IPH 2Calibration Setup

Demand Moore Reliability 9
IPH
2 &IPX 2
Current-to-Pressure
(I/P) Transmitters
Calibrating the IPH2or IPX2
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 IPX2new versions (introduced in 2013) only,
check switch is set to “Direct”- see Figure 5.
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:
7. For IPX2new versions (introduced in 2013) only,
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).
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.
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 2Output Switch
SELECTABLE OUTPUT
ZERO
SPAN
ZERO
SPAN
PS (+) PS (-)
Adjustable Direct
Potentiometers
Adjustable Reverse
Potentiometers
Selectable Output
Switch
IPX2

10 Demand Moore Reliability
IPH
2 &IPX 2
Current-to-Pressure
(I/P) Transmitters
Installation
The installation of the IPH2or 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 IPX2and
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 IPH2or IPX2will 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 IPH2is
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 IPX2needs 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 IPX2Natural 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.