Moore Industries IPF User Manual

IPF

Field-Mount

Current-to-Pressure Transmitter

USER’S MANUAL

May 2016 No. 170-702-00 D

© 1992 by Moore Industries-International, Inc.

Table of Contents

Introduction 1
Description 1
Calibration 3
Installation 8
Operation 12
Maintenance 12
Troubleshooting 16

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Page 1

IPF

Introduction

The field-mount version of Moore Industries’ Current­to-Pressure Transmitter enclosed in an all-weather,
thermoplastic housing is called the IPF. It is a
rugged, two-wire transmitter whose design meets the
specifications for several types of water- and dust­tight, and corrosion-resistance certifications. The
material used in the unit’s housing makes it ideal for
use under even the most arduous of environmental
conditions.

This manual contains the descriptive and instruc­tional information needed to install, operate, and
maintain the IPF. It includes a brief explanation of
the unit model number, a table of its performance
and operational specifications, instructions for
calibration, information on installation and mainte­nance procedures, and checklist of troubleshooting
recommendations.

Appendix A consists of information on instrument­quality air and filtration, essential for optimum IPF
performance and reliability.

Notes and Cautions, where they appear in text or
illustrations, are used to call attention to practices
that otherwise may result in inconveniences for the
user (Notes) or damage to the IPF (Cautions).

Description

The IPF is used to effect changes in pneumatic
throughput pressure in a process loop. These
changes are proportional to, and based upon,
changes in a standard, process current input to the
unit. There are two options for input (current), and
eight for output (pressure).

The IPF housing is constructed of rugged, all­weather, polyetherimide thermoplastic. It is designed
to meet the specifications of several third party,
industrial certifying agencies.

Contact your Moore Industries Sales Representative
for the most current list of IPF certifications and
approvals.

The unit has two electrical conduit dimension op­tions; a 1/2-inch by 14 NPT female port (WP and
WPP) , and an M20 x 1.5 metric female port (WPM
and WPMP). Pneumatic connection fittings are
female, 1/4-inch by 14 NPT, standard.

NE-Type Units. IPF’s equipped with the NE Option

have a separate, external enclosure attached to the
main unit housing. This enclosure contains the
terminals for the connection of process current input.

The IPF can be installed in a surface-mount configu­ration (WP or WPM), or, with the optional hardware,
on 2-inch pipe (WPP and WPMP). The symmetrical
arrangement of the mounting holes in the base of the
unit housing provides for mounting on either horizon­tal or vertical piping.

The IPF housing affords the unit excellent protection
against shock, vibration, and corrosion. The unit is
also inherently immune to radio frequency and
electromagnetic interference (RFI/EMI).

Options

There are several options available for the IPF. The
following list provides an overview. A complete list,
including information on available mounting hard­ware and more data on the current IPF approvals
and certifications, is available from your Moore
Industries Sales Representative, or directly from the
factory.

FR1 Option – Coalescing Filter/Regulator w/Integral

Gauge.

pressure. Removes particulate matter down to 0.01
micron in size. Scaled in 0-60 pounds per square
inch (psi) and 0-4 bars.

TF1 Option – Plastic Tube Fitting.

inch (O.D.) tubing. Option not available with FR1.

Table 1 lists the performance and operational
specifications for the IPF.

Maximum 4 scfm flow at 90 psig inlet

For use with 1/4-

Page 2

IPF

Characteristic Specifications

Table 1. IPF Performance and Operational Specifications

Input

Output

Supply

Pressure

Controls

Performance

Factory-configured.
4-20 mA into 200 , nominal.
10-50 mA into 75 , nominal (available with 3-15 psig output units only).

Factory-configured.

0.2-1 bar (20-100 kPa)
1-0.2 bar (100-20 kPa)
3-15 psig
15-3 psig
3-16.6 psig
3-27 psig

Factory-configured.
20 psi (approximately 140 kPa, 1.4 bar) nominal.
35 psi (approximately 241 kPa, 2.41 bar) nominal. 35 psi required for 3-27 psig output units.

Filtered, regulated, instrument-quality air only. 20 psi units accommodate up to 30 psi without
damage. 35 psi units accommodate up to 40 psi without damage.

Span: Multiturn pot electronically adjusts full-scale output to 100% of rated span.
Zero: Multiturn adjustment screw mechanically provides offsets of ±3% of span.

Accuracy: Error less than 0.5% of span, including the combined effects of linearity,
hysteresis, and repeatability. For 3-27 psig output units or 10-50 mA input units, error not to
exceed 1% of span. Linearity defined per SAMA standard PMC 20.1-1973.

Ambient Temperature Effect: ±0.1% of span per °C change within the rated ambient
temperature operating range (less than ±0.055% of span per °F change).

Supply Pressure Deviation Effect: Maximum of 0.3% per 1.4 psig change
(0.3% per 0.1 bar).

Mounting Position Effect: Negligible. Unit should be calibrated in final orientation.
RFI/EMI Effect: ±0.1% of span in field strengths of 10 V/m at frequencies of 20-500 MHz.
Step Response: 0.3 seconds into 100 ml (6 cu in) at 90% of span.

Pneumatic

Environmental

Ratings

Weight Approximately 800 g (1 lb, 12 oz)

Load

Air Capacity: 1.4 scfm (approximately 2.7 kg/hr)
Air Consumption: 0.1 scfm (approximately 0.2 kg/hr) dead-ended.

Recommended Ambient Temperature Operating Range: –20 to 60 °C (–4 to 140 °F).

NOTE: Refer to Installation Section for unit outline dimensions.

Page 3

IPF

Model/Serial Number. Moore Industries uses a

system of individual unit model and serial numbers to
keep track of factory configuration and options for
IPF’s shipped or serviced.

If service information or assistance is required for
your IPF(s), be sure to provide the factory with the
unit model and serial numbers to assist our profes­sional technicians in their effort to give you prompt,
efficient service.

The IPF serial and model numbers can be found on
a metal tag on the side of the unit housing. The
example outlines the significance of each field of
information in a typical IPF model number.

EXAMPLE

IPF / 4-20MA / 3-15PSIG / 20PSI / -FR1 [ WP ]

Unit Type

Calibration

Every IPF is fully tested and calibrated at the factory
prior to shipment. Before installation, however, your
IPF’s should be bench checked to verify proper
operating levels, and to set the desired unit zero and
span.

Calibration should be conducted in an appropriate
testing environment. By carrying out the procedures
at a technician’s bench or similar lab-type setup, any
unit damage that may have occurred during ship­ment can be discovered safely, i.e., isolated from the
intended application.

Input

Output

Supply Pressure

Options(s)

Housing

Page 4

IPF

Calibration Equipment

Table 2 lists the equipment required to calibrate the
IPF. This equipment is not supplied by Moore
Industries, but should be available in most labs or
maintenance areas.

Calibration Setup

To prepare the IPF for calibration, disassemble the
unit as shown in figure 1, and connect it to your
calibration equipment as shown in figure 2, which
shows the calibration setup.

Unit Connections and Controls. The IPF has two,

labeled terminals on its faceplate, located under the
top, protective cover of the housing. NE-type units’
terminals are enclosed in a separate, external sub­housing labeled “TERMINAL CONNECTIONS” .

Table 2. IPF Calibration Equipment

The terminal labeled “+ I” is for connection of the
positive current input, and the terminal labeled “–I”

is for negative connections.

The two IPF controls are also located inside the unit
housing on the faceplate. They consist of a me­chanical adjustment screw and an electronic potenti­ometer (pot), each accessed through holes in the
unit front panel. The following labels are used:

...controls the setting for unit zero.

...controls the setting for unit span.

Equipment Specifications

Current Source

DC Milliammeter Calibrated. Accuracy of ±0.1% (optional equipment)

Air Supply

Air Pressure

Gauges

Pneumatic Test

Load

Screwdriver Slotted-tip. Head width of 5 mm (0.1875 in), maximum.

Calibrated, adjustable. Must be capable of discrete output levels within the appropriate, rated
range for the unit under test; 4-20 or 10-50 mA. Refer to model number and table 1.

Filtered, regulated, instrument-quality. Refer to appendix A of this manual for more detailed
specifications/filtration requirements.

Two calibrated gauges; #1 with accuracy of ±2%, #2 with accuracy of ±0.1%.

Calibrated. Volume of approximately 120 ml (75 in

3

), per IEC spec #770.

SPAN POTENTIOMETER

Page 5

IPF

TERMINAL

BLOCK
DETAIL

"TERMINAL CONNECTIONS"

COVER

+I -I

RUBBER

RETAINING

STRAP

ZERO

ADJUST SCREW

INTERNAL ASSEMBLY

REMOVAL TAB

NE-TYPE

N-TYPE

TERMINAL

BLOCK
DETAIL

Figure 1. IPF Disassembly, Controls, and Terminals for Calibration

The Zero adjustment screw is a cone-tipped, ma­chined screw that mechanically provides a control
range for zero offsets of ±3-percent of rated unit
span.

The Span pot electronically adjusts unit full-scale
output to 100-percent of rated span. It requires
approximately 22 turns to move its wiper from one
extreme to the other, clockwise for maximum or
counterclockwise for minimum span.

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

Always use clean, dry, instrument air, whether

calibrating or operating the IPF. Refer to the appen­dix of this manual for information on filtration.

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