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