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Product Bulletin
4320 Position Monitor
D103286X012
Fisherr 4320 Wireless Position Monitor
The Fisher 4320 wireless position monitor eliminates
the need for wiring to an on/off pneumatically
actuated valve. It provides a precise wireless feedback
signal to indicate equipment position with a percent
(%) of span plus on/off indication. The 4320 can be
used to control and/or monitor valves, slidingstem
regulators, displacement and float level sensors, and
relief valves. It is designed to be simple to use,
compact, and easily mounted.
The control portion of the 4320 accepts commands
through the wireless network from a control system
and provides a pneumatic on/off signal to an actuator.
The feedback portion of the instrument periodically
reads the position of a measured device and transmits
that data over the wireless network. Transmitted data
includes the percent of span value, limit switch status
indications, valve set point, internal device
temperatures, and power module voltage. It also
checks for service and configuration instructions from
host systems such as distributed control systems
(DCS), asset management systems (AMS), and
supervisory control and data acquisition (SCADA)
systems.
X0535
ON/OFF CONTROL OPTION
62.3:4320
July 2014
The 4320 can be powered by a battery sourced power
module, eliminating the need to install wires. This
makes it easier to design new applications or
implement into retrofit locations. An external power
option is also available. The elimination of levers and
linkages reduces the number of mounting parts and
installation complexity. The autocalibration feature
allows consistent valve feedback.
The 4320 uses a linkage-less feedback design that
eliminates direct contact with the measured device
(e.g., valve, regulator, level, louver, or other devices)
eliminating physical contact and wear. IEC 62591/
WirelessHARTr communication protocol, operating at
2.4 Ghz, is utilized and is approved for use globally.
Instrument calibration and commissioning is
performed with a push button and liquid crystal
display (LCD) interface. This simplicity eliminates the
need for tools or the setting of cams during setup,
saving you time.
Designed to meet intrinsically safe and nonincendive
requirements, this instrument delivers scalable
functionality in a small package. Due to the
energylimiting nature of the design, this intrinsically
safe device is suitable for use in all zone locations. The
battery sourced power module option has no cable
conduits.
www.Fisher.com
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Product Bulletin
62.3:4320
July 2014
Specifications
4320 Position Monitor
D103286X012
Available Mountings
J Quarter-turn rotary-shaft,
J Sliding-stem, or
J Linear applications
Can also be mounted on other actuators that comply
with IEC 60534-6-1, IEC 60534-6-2, VDI/VDE 3845 and
NAMUR mounting standards.
Input Measurement
Stem Travel (linear movement)
Minimum: 2.5 mm (0.10 inch)
Maximum: 210 mm (8.25 inches)
Shaft Rotation (rotary movement)
Minimum: 45_
Maximum: 90_
Shaft Rotation (rotary movement, arced array)
Minimum: 13_
Maximum: 30_
Measurement Output
Analog: 0-100%
Discrete: on/off switches (2)
Reference Accuracy
1% of span
On/Off Control
Output Signal
Pneumatic signal as required by the actuator, up to
95% of supply pressure
Minimum Span: 3.1 bar (45 psig)
Maximum Span: 7 bar (101 psig)
Action: Single or Double Acting
Supply Pressure
Minimum: 3.1 bar (45 psig)
Maximum: 7 bar (101 psig)
Supply Medium
Air or Natural Gas
Air: Supply pressure must be clean, dry air that
meets the requirements of ISA Standard 7.0.01. The
supply air at the device should have a dew point less
than -20_C (-4_F).
Natural Gas: Natural gas must be clean, dry, oil-free
and noncorrosive. H2s content should not exceed
20 ppm.
-continued-
A maximum 40 micrometer particle size in the air
system is acceptable. Further filtration down to 5
micrometer particle size is recommended.
Lubricant content is not to exceed 1 ppm weight
(w/w) or volume (v/v) basis. Condensation in the air
supply should be minimized.
Air Consumption
(1)
4320
At 5.5 bar (80 psig) supply pressure:
0.036 m
3
/hr (1.27 scfh)
Pilot Valve Leakage
Maximum at 20_C: 8 ml/min (0.0003 scfm/min)
Maximum at -20_C: 800 ml/min (0.028 scfm/min)
Air Capacity / Flow Rate
Supply Pressure: 1.2 Cv
Connections (Optional)
Supply, Output Pressure, and Vent: 1/4 NPT
Wireless Set Point Command
IEC 62591 (WirelessHART) 2.4 GHz DSSS
Local User Interface
Liquid Crystal Display (LCD)
Two pushbuttons for navigation, setup, and
calibration
Communication Protocol
HART 7 and IEC 62591 (WirelessHART)
Maintenance Port Communication Signal
Bell 202 Voltage Signaling: 1200 bps binary
phase-continuous Frequency-Shift-Keying (1220 Hz
mark, 2400 Hz space) superimposed on voltage level
Initial Dynamic Variable Assignments (Default)
Dynamic
Variable
Assignment
Primary (PV) Position Position Position
Secondary (SV) Set Point Set Point Switch States
Tertiary (TV) Switch States Switch States Cycle Counter
Quaternary (QV) Supply Voltage Supply Voltage Supply Voltage
Control Snap Control Monitor
DEVICE STRUCTURE
Wireless Communication Signal
2.4 Ghz, DSSS, IEC 62591 (WirelessHART)
Maximum 10 dBm (10 mW) EIRP at 2.46 GHz
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4320 Position Monitor
D103286X012
Specifications (continued)
Product Bulletin
62.3:4320
July 2014
Wireless Classifications
Class A digital device, complies with part 15 of the
FCC Rules
Contains FCC ID: LW2RM2510
Contains IC: 2731A-RM2510
Electromagnetic Compatibility
Meets EN 61326‐1 (First Edition)
Immunity—Industrial locations per Table 2 of
the EN 61326‐1 standard
Emissions—Class A & B
ISM equipment rating:
Group 1, Class A & B
Vibration Testing
Meets or exceeds vibration levels specified in
ANSI/ISA 75.13.01 1996 (2007):
4 mm peak to peak at 5 Hz,
2 g from 15150 Hz, and
1 g from 150 2000 Hz
European Directive Information
This product complies with the following directives:
ATEX Directive (94/9/EC)
Electro Magnetic Compatibility (EMC) (2004/108/EC)
Radio and Telecommunications Terminal Equipment
Directive (R&TTE) (1999/5/EC)
Refer to the Safety Instructions (D103022X012) for
the Declaration of Conformity
Electrical Classification
CSA (C/US)— Intrinsically Safe
ATEX— Intrinsically Safe
IECEx— Intrinsically Safe
Contact your Emerson Process Management sales
office for classification specific information
Electrical Housing
Type 4X, IP66 & IP67
Other Classifications/Certifications
Customs Union—Russia, Belarus & Kazakhstan
INMETRO—National Institute of Metrology,
Quality and Technology (Brazil)
NEPSI—National Supervision and Inspection Centre
for Explosion Protection and Safety of
Instrumentation (China)
PESO CCOE—Petroleum and Explosives Safety
Organisation - Chief Controller of Explosives (India)
Contact your Emerson Process Management sales
office for classification/certification specific
information
IEC 61010 Compliance
Operating Temperature Limits
(2)
Monitoring
Battery Power: -40 to 85_C (-40 to 185_F)
External Power: -40 to 80_C (-40 to 176_F)
LCD may not be readable below -20_C (-4_F)
With Pnuematic Output (On/Off Control Option):
-20 to 50_C (-4 to 122_F)
Temperature Sensitivity
0.06% change per degree C
Storage Temperature Limits
(2)
-40 to 70_C (-40 to 158_F)
Humidity Limits
10-95% Non‐Condensing Relative Humidity
Meets Pollution Degree 2
Adjustments
Zero and Maximum Span through local interface
Dimensions
See figure 1, 2, and 3
Weight
Monitoring: 0.57 kg (1.25 lbs)
On/Off Control: 1.6 kg (3.4 lbs)
Power Module
Standard —Lithium (non-rechargeable)
-continued-
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Product Bulletin
62.3:4320
July 2014
Specifications (continued)
4320 Position Monitor
D103286X012
Power Module Limits
Standard— 5 years at update rate of 16 seconds or
longer with 3 additional devices communicating
through it
Extended‐Life— 10 years at update rate of 8 seconds
Update Rates
For position feedback, temperature, and power
module voltage—selectable from 1 second to 1 hour;
1s, 2s, 4s, 8s, 16s, 32s, 1 to 60 minutes
or longer with 3 additional devices communicating
through it
Shelf life —10 years (radio off)
Note: Sample rate for position feedback is normally
the same as the update rate.
External Power (Optional)
12 - 28 volts DC
Construction Material
100 mA maximum operating current
Polarity Insensitive
Wire Size— 14-20 gauge
1. Normal m3/hour - Normal cubic meters per hour at 0_C and 1.01325 bar, absolute. Scfh - Standard cubic feet per hour at 60_F and 14.7 psia.
2. The temperature limits in this document and any applicable standard or code limitation for valve should not be exceeded.
Housing: A03600 low copper aluminum alloy
Elastomers: nitrile, fluorosilicone
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4320 Position Monitor
D103286X012
Product Bulletin
62.3:4320
July 2014
Features
n Simplicity— The 4320 is easy to use. The linkageless
feedback system is easy to install with a magnet
array assembled to the valve stem. The 4320 has a
local user interface that will allow you to calibrate
the instrument. The full text display in the local
interface is easy to navigate, in part due to the
selection of languages.
n Quick Installation—Simply attach the 4320, calibrate
and commission to any control system. With the
pneumatic output option, only air is needed to
automate an on/off valve. No conduit easements or
permits are required with the standard or extended
life power modules, thus saving time, costs, and
effort in documenting cable runs and associated
design reviews. Because there is no wiring,
implementation times are shortened for device
installation, setup, and commissioning.
n Energy Efficiency—The optional pneumatic output
has zero steady state air consumption. Air
generation costs can be reduced.
n Reliability—The WirelessHART selforganizing mesh
network provides the high level of communication
reliability required in process control.
n Power Options—More than 5 years operation is
typical using standard life and extended life power
modules. Optional ability to use local 1228 V
power in the field.
n Minimized Maintenance—The feedback design
provides more accurate monitoring and eliminates
physical wearout common in traditional valve
instruments. This results in less frequent
maintenance, repair, and recalibration. Power
modules can be easily replaced without losing
power to the device, using the “hot swap” feature
to maintain network reliability.
n Diagnostics—Predefined device, network, and
system diagnostics provide details on the health of
the device and its ability to communicate. Device
diagnostics include whether the device calibration
has been completed and power module health. The
number of completed cycles is measured for the
monitored equipment.
Note
A cycle is the change from open to closed position or vice
versa. This is determined by moving past the trigger point in
each direction.
n Security—The WirelessHART self-organizing mesh
network includes encryption, authentication, and
authorization mechanisms to provide the level of
security required in process locations and by the
Information Technology (IT) industry.
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Product Bulletin
62.3:4320
July 2014
4320 Position Monitor
D103286X012
Integration
Because the 4320 wireless position monitor operates
with WirelessHART communications it can be used for
incremental monitoring applications. This replaces
manual efforts to audit or verify equipment position
during normal operations, such as startup and
shutdown situations, product changeover, product
isolation, and sampling activities.
One implementation method can be accomplished
using an overlay approach; adding wireless
instrumentation on top of existing instrumentation.
This preserves the existing infrastructure and enables
improved information for operation, reactiveness,
maintenance, and safety.
A second approach is to replace older limit switches
and position transmitters, either because of increased
maintenance requirements or dated wiring
infrastructure that has become or is believed to
become an operational concern.
A third approach is to use the 4320 where feedback is
not possible with standard wired options. For example,
on rotating equipment, where the elimination of wires
makes feedback possible.
and provides a pneumatic on/off signal to an actuator.
The internal electronics periodically reads the position
of travel and transmits that data over the wireless
network. The device also checks for instructions from
host systems like DCS, SCADA and asset management
systems. The device “sleeps” until the next reading,
enabling longer power module life. The device is still
powered up in the sleep mode but operating at
ultra-low power consumption levels.
Setup/Installation
Device setup is typically performed prior to installation
and includes setting two network parameters. These
parameters are entered using a handheld such as the
475 or 375 Field Communicator. Calibration is
performed after installation and requires using the
local interface to place the device at the end points of
travel range. The device is then ready for
commissioning and service.
The wireless nature of this device leads to its
implementation in a wide range of systems, from
programmable logic controllers (PLC), to DCS, AMS,
and SCADA systems.
System integration for typical in-plant operations is
available through the Smart Wireless 1420 Gateway.
Principle of Operation
The control portion of the 4320 accepts commands
through the wireless network from a control system
Battery Sourced Power
Module Life
The 4320 position monitor uses power efficient
measures to keep energy consumption to a minimum.
However, there is a finite amount of energy within the
power module. The life expectancy of the module is
affected by two things; 1) the reporting rate, and 2)
the number of devices in the network that must
communicate through the 4320 position monitor.
Typical on/off applications will operate effectively at
one minute reporting periods.
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4320 Position Monitor
D103286X012
Product Bulletin
62.3:4320
July 2014
Ordering Information
When ordering, specify:
1. Position monitor control
n Monitoring
n On/off control option
2. Power source
n Battery sourced power module
n External power option
3. Mounting requirements
Feedback sensor and mounting brackets are part of
the mounting.
For rotary movement indicate if mounting
requirements are:
n 90_ NAMUR,
n 90_ ISO mounting, or
For linear movement, indicate travel length:
n 7 mm (1/4 inch),
n 19 mm (3/4 inch),
n 25 mm (1 inch),
n 38 mm (1-1/2 inch),
n 50 mm (2 inch),
n 100 mm (4 inch), or
n 210 mm (8-1/4 inch) strokes
Note
As a general rule, do not use less than 50% of the magnet
assembly for full travel measurement. Performance will
decrease as the assembly is increasingly subranged.
Contact your Emerson Process Management sales
office if longer travel lengths are required.
Note
Contact your Emerson Process Management sales office if
mounting on non-Emerson valves is required.
n 30_ for special applications
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Product Bulletin
62.3:4320
July 2014
Figure 1. Dimensions
18.8
(0.74)
172
(6.79)
136.7
(5.38)
17
(0.67)
4320 Position Monitor
D103286X012
89.8
(3.54)
39.9
(1.57)
50
(1.97)
51.1
(2.01)
6X M6 - 1
13 mm MAXIMUM
ALLOWABLE THREAD
ENGAGEMENT
17.68
(0.70)
69.4
(2.73)
19.9
(0.78)
67
(2.64)
19.9
(0.78)
11
(0.44)
11
(0.44)
128.9
(5.08)
91.7
(3.61)
ANTENNA SHOWN
VERTICAL
50
(1.97)
GE41356-C
8
17.68
(0.70)
46.72
(1.84)
35.36
(1.39)
46.72
(1.84)
35.7
(1.40)
35.36
(1.39)
35.7
(1.40)
ANTENNA SHOWN
HORIZONTAL
mm
(INCH)
Page 9
4320 Position Monitor
D103286X012
Figure 2. Dimensions with On/Off Control Option
Product Bulletin
62.3:4320
July 2014
18.8
(0.74)
6.6
(0.26)
51.1
(2.01)
6X M6 - 1
13 mm MAXIMUM
ALLOWABLE THREAD
ENGAGEMENT
197.3
(7.77)
136.7
(5.38)
97.6
(3.84)
1/4-18 NPT
SUPPLY
97.6
(3.84)
17.68
(0.70)
41.8
(1.65)
69.4
(2.73)
19.9
(0.78)
67
(2.64)
19.9
(0.78)
11
(0.44)
11
(0.44)
128.9
(5.08)
91.7
(3.61)
89.8
(3.54)
39.9
(1.57)
ANTENNA SHOWN
VERTICAL
50
(1.97)
50
(1.97)
17.68
(0.70)
10.8
(0.43)
2X 1/4-18 NPT
TO ACTUATOR
GE59669
10.7
(0.42)
46.72
(1.84)
35.36
(1.39)
46.72
(1.84)
35.7
(1.40)
35.36
(1.39)
35.7
(1.40)
ANTENNA SHOWN
HORIZONTAL
mm
(INCH)
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Page 10
Product Bulletin
62.3:4320
July 2014
Figure 3. Dimensions—External Power Option
4320 Position Monitor
D103286X012
ON/OFF CONTROL OPTION
GE59678
42
(1.66)
M20 X 1.5 OR 1/2-14 NPT
CONDUIT CONNECTION
20
(0.79)
60
(2.36)
mm
(INCH)
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4320 Position Monitor
D103286X012
Product Bulletin
62.3:4320
July 2014
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Product Bulletin
62.3:4320
July 2014
4320 Position Monitor
D103286X012
For additional information on the
4320 wireless position monitor,
scan or click the QR code
Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance
of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Fisher is a mark owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co. Emerson Process Management,
Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. HART and WirelessHART are marks owned by the HART
Communication Foundation. All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not
to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such
products at any time without notice.
Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
E 2009, 2014 Fisher Controls International LLC. All rights reserved.
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