MAGNETROL R82

®
P U L S E
B U R S T
R A D A R
M
The Total Spectrum of Solutions
Magnetrol’s products employ a number
of technologies to meet the challenges
of level and flow control. Pulsar® and
Model R82 Radar Transmitters utilize
Pulse Burst Radar for accurate and
reliable level control.
agnetrol International
M
—a world leader in level and
flow measurement technology—
designs, manufactures, markets and
PULSAR
MODEL
RX5
R82
services level and flow instrumentation worldwide.
Magnetrol’s product groups are
based upon these technologies:
• Buoyancy
C
O
N
T
E
N
T
S
• Contact Ultrasound
• Non-Contact Ultrasound
• Level Sensing with Pulse Burst Radar
3
• Anatomy of a Pulsar Transmitter
6
• Pulsar Specifications
7
• Guided Wave Radar
• Pulse Burst Radar
• RF Capacitance
• Thermal Dispersion
• Vibration
• Anatomy of a R82 Transmitter
8
• R82 Specifications
9
• Application Suitability
10
• PACTware™ for Pulsar and the R82
11
• Magnetrol Contact Information
12
• Visual Indication
The industries we serve include:
• Petroleum Production
• Petroleum Refining
• Power Generation
• Petrochemical
• Chemical
• Water & Wastewater
• Pulp & Paper
• Food & Beverage
• Pharmaceutical
2
Liquid Level Sensing with Pulse Burst Radar
EVOLUTION. First developed during WWII, practi-
select the one generated by true level. Pulse Burst
Radar also has excellent averaging characteristics,
important in those applications where a return signal
is attenuated by the factors described below.
Unlike true pulse devices that transmit a single,
sharp (fast rise-time) waveform of wide-band energy,
Magnetrol products emit short bursts of 5.8/6.3 GHz
(Pulsar) or 26 GHz (Model R82) energy and measures
the transit time of the signal reflected from the liquid
surface. Distance is calculated utilizing the equation:
cal radar instrumentation has grown to include a myriad
of sensors and transmitters. Today, radar
serves us in applications that range from
the commonplace to
the cosmic. Radar
maps the topology
of distant planets
and pinpoints
weather fronts on
Distance = C × Transit time
(C = speed of light)
2
earth (doppler
radar); it automatiThe Level value is then developed by factoring in Tank
cally opens supermarket doors (continuous wave
Height and Sensor Offset information. The exact referradar); and it cooks our meals with microwaves (cavity
ence point for distance and level calculations is the
magnetron radar). Radar is presently the fastest growing
Sensor Reference Point—bottom of an NPT thread, top
measurement technology for industrial level control.
of a BSP thread, or face of a flange.
But radar’s beginnings were less than auspicious.
Equivalent Time Sampling (ETS) measures the high
Early level instruments were costly, bulky, over-specialspeed, low power electromagnetic energy (EM). ETS is
ized and complicated. The development of simpler, less
critical in the application of radar to vessel level meascostly and easier-to-use devices would be made possible
urement. The high-speed EM energy is difficult to measby solid state components and by a growing fund of
ure over short distances and at the resolution required
applications knowledge.
in the process industry. ETS captures the EM signals in
TYPES. Radar level sensing devices detect the
real time (nanoseconds) and reconstructs them in
position of process liquids by measuring the interval
equivalent time (milliseconds), which is much easier to
between the emission and return of high frequency
measure with today’s technology.
radio waves. Guided Wave Radar, used by Magnetrol’s
ETS is accomplished by scanning the waveguide to
Eclipse® and Horizon™ transmitters, is a contact technology
collect thousands of samples. The round trip event on a
that launches its signal along a waveguide that runs
65 foot (20 meter) tank takes only 133 nanoseconds in
directly into the process media. Pulse Burst Radar, utireal time. After it is reconstructed in equivalent time it
lized by Pulsar® and the Model R82, is a non-contact
measures 200 milliseconds.
technology that launches its signal into open air along a
THE THREE Ds. Radar applications are influenced
trajectory directed toward the process media.
by three basic conditions: (1) the Dielectric of the
PULSE RADAR. Of the two operational technoloprocess medium; (2) the Distance, or measuring range
gies commonly used for radar, Magnetrol products
employ a pulse burst approach rather than frequency
modulated continuous wave (FMCW). Pulse Burst Radar
operates in the time domain and does not require
500 ns
complex and expensive processing as needed to
1 ns
enable FMCW. Because echoes are discrete and
separated in time, Pulse Burst Radar is better
able to sort through extraneous echoes and
3
of the application; and (3) a variety of Disturbances that
attenuate or distort the radar signal.
The Distance, or measurement range, is a function of
the instrument’s frequency and selected antenna, the
dielectric constant of the media, and the presence of
signal interference. Disturbances caused by turbulence,
foam, false targets (interior tank obstructions causing false
echoes), multiple reflections (reflections from off the tank
roof), or a high rate of level change, can weaken, scatter
or multiply radar signals. Very high and very low liquid
levels can also be problematic.
SIGNAL PROCESSING. Radar’s signal processing
function is critically important because radar exhibits
interference effects similar to those that affect light. It is
the quality of a device’s signal processing that separates
today’s leading-edge radar transmitters from the others.
Most disturbances mentioned above can be readily
managed by Pulsar and Model R82 signal processing
capabilities where true level can be extracted from false
targets and other background noise. Using extremely
energy-efficient circuits, no duty cycling is necessary to
accomplish effective measurement. For this reason,
Magnetrol’s Pulse Burst Radar products can also track
high rates of change that have been impossible with other
loop-powered radar transmitters. Although these products
feature powerful False Target Recognition and Rejection
routines, minimizing false target reflections is significantly
affected by proper installation and orientation.
ANTENNAS. The transmitter’s antenna transmits and
receives the radar signal. Pulsar offers dielectric rod and
horn types while the Model R82 uses an encapsulated horn
antenna. Maximum measuring range of the instruments is
chiefly dependent upon the instrument’s capabilities,
dielectric constants, and the degree of turbulence.
Dielectric constant, temperature, and pressure capabilities
for our radar products are shown on page 6.
INSTALLATION. A Quick Start installation procedure
provides the key steps for mounting, wiring and configuring Magnetrol transmitters. Though transmitters come
configured from the factory, they can be reconfigured in
the shop. Bench configuration provides a convenient and
efficient way to set up the transmitter before going to the
tank site to complete the installation. The transmitter is
password protected to protect configuration values.
A HART® remote unit, such as a HART communicator,
can be used to provide a communication link to the
Pulsar and R82 transmitters. When connected to the
control loop, the measurement readings shown on the
transmitter will be shown on the communicator. The
4
communicator can also be used to configure and troubleshoot the transmitter. See page 11 for information on
PACTware, today’s leading configuration and diagnostics
software.
BENEFITS. Magnetrol Radar products are engineered
to measure a large number of liquid media in a broad
range of process conditions, from calm product surfaces
and water-based media to turbulent surfaces and aggressive hydrocarbon media. As a non-contact device, these
products are not susceptible to the complications that
arise whenever a probe contacts the process media, such
as coating by viscous media or corrosive attack due to
aggressive chemicals. The greater the measuring range,
the more does radar prove itself to be the economical
solution, given the cost of extended probe lengths.
Radar is virtually unaffected by the presence of
vapors, or air movement within a vessel’s free space.
Changes in specific gravity, conductivity and dielectric
constants also have no effect on measurement accuracy.
As a 100% electronic instrument, the absence of moving
parts translates into low maintenance costs. As a twowire, loop-powered device, power requirements and
installation are greatly simplified. I
Pulse Burst Radar technology and advanced signal processing help manage common disturbances: ‚ False
echoes caused by obstructions, or multi-path reflections
caused by waves hitting a sidewall; ƒ Turbulence generated
by agitators or aggressive chemical reactions; and „ A layer
of light to medium density foam.
‚
„
ƒ
PULSAR
RX5
B as ic Ra dar In stru ment C onf igura tion s
L
AT A GLANCE
PP
All-PP
Horn Antennas
Antenna Extentions
Dielectric Rod Antennas
TFE
Quick Disconnect feature: Transmitter and antenna
separation can be accomplished without opening the
tank and compromising process uptime.
All-Halar®
HORN:
3" (7.6 cm)
ROD:
4" (10.16 cm)
8" (20.3 cm)
12" (30.4 cm)
Three-inch (7.6 cm)
Four-inch (10.16 cm)
Minimum Dielectric:
Minimum Dielectric:
Maximum Pressure:
Maximum Pressure:
1.7 εr
2.0 εr
675 psig
46.5 bar
675 psig 750 psig 200 psig 50 psig
46.5 bar 51.7 bar
14 bar
3.5 bar
Maximum Temperature:
+400˚ F +200˚ F
+204˚ C +93˚ C
+200˚ F
+93˚ C
Six-inch (15.24 cm)
Maximum Temperature:
+400˚ F
+204˚ C
+300˚ F
+150˚ C
MODEL
R82
Model R82 shown
with a Lexan
housing and a
2" (50 mm) and
8" (200 mm)
polypropylene antenna
Model R82 shown
with a cast aluminum
housing and a
2" (50 mm) and
8" (200 mm)
Tefzel® antenna
Minimum Dielectric:
Minimum Dielectric:
Maximum Pressure:
Maximum Pressure:
1.7 εr
1.7 εr
200 psig
14 bar
200 psig
14 bar
Maximum Temperature:
Maximum Temperature:
+200˚ F
+93˚ C
+200˚ F
+93˚ C
5
Anatomy of a Pulsar Transmitter and Sensor
PULSAR
RX5
Pulsar’s dual enclosures orient wiring
and electronics on the same plane for
convenient wiring, configuration and
display. The display features a two-line,
eight-character LCD. A three-button
keypad provides the user interface.
Aluminum Compartment Covers and Base
Bottom cover has tempered, glass window
(optional 316 stainless steel cover and bases)
IS, XP and
Non-Incendive
Approvals
Field Wiring Compartment
Wiring board with terminal block
Explosion-Proof Feedthrough
Electronics Compartment
•
Keypad
‚ LCD Module ƒ Digital Board
„ Analog Board and XP Barrier
… Mounting Plate
‚
ƒ
Configuration via
keypad or optional
HART communicator.
No PC or laptop required.
„
…
Microwave Launcher
Quick-Disconnect
Allows vessel to remain
sealed
O-Ring Options
Process Connections
26 different sizes and types
Viton® GFLT, EPDM, Kalrez® 4079, Aegis® PF128
Horn Antenna Materials
Antenna Configurations
•
•
•
•
•
•
•
6
TFE Dielectric Rod
Polypropylene Dielectric Rod
All-Polypropylene Dielectric Rod
All-Halar Dielectric Rod
3 inch (75 mm) Horn (stillwell only)
4 inch (100 mm) Horn
6 inch (150 mm) Horn
•
•
•
•
316/316L stainless steel
Hastelloy® C
Monel®
Optional nozzle extensions:
4" (100 mm), 8" (200 mm)
and 12" (300 mm)
SYSTEM DESIGN
Measurement Principle
Pulse Burst Radar @ 5.8 GHz (Europe), 6.3 GHz (U.S.)
INPUT
Measured Variable
Level, determined by the time-of-flight of a radar pulse from the
transmitter to the product surface and back
Zero and Span
0.5 to 65 feet (0.2 to 20 meters)
OUTPUT
Type
Analog: 4–20 mA or 4–20 mA with optional HART digital signal
Range
Analog: 3.8 to 20.5 mA useable; Digital: 0 to 999" (0 to 999 cm)
Resolution
Analog: 0.01 mA; Digital: 0.1"
Loop Resistance
GP/IS/XP 350 Ω @ 24 VDC/22 mA; 400 Ω @ 24 VDC/20 mA
Diagnostic Alarm
Adjustable 3.6 mA, 22 mA, HOLD
Damping
Adjustable 0–45
USER INTERFACE
Keypad
Three-button, menu-driven data entry and system security
Indication
Two-line × eight-character display
Digital Communication
HART version 5 compatible (communicator sold separately)
POWER (Measured at instrument terminals)
GP: 16 to 36 VDC; IS: 16 to 28.6 VDC; XP: 16 to 36 VDC
HOUSING
Material
Aluminum A356T6 (< 0.25% copper), 316 stainless steel (optional)
Cable Entry
3
⁄4" NPT, M20
ANTENNAS
Type
TFE, polypropylene or Halar dielectric rod / 3" 4" or 6" horn
Materials (wetted parts)
Dielectric rod: TFE, polypropylene or Halar
Mounting nut: 316 SS (Hastelloy C, Monel, or All-Polypropylene optional)
Viton® O-rings (standard)
Horn: 316 stainless steel (Hastelloy C optional)
Insert: TFE
Viton O-rings (standard)
Process Connections
Dielectric rods: 11⁄2" NPT and BSP; ANSI or DIN flanges
Horns: 4" or 6" ANSI or DIN flanges
Maximum Process Temperature +400° F (+204° C)
Maximum Process Pressure
750 psi (51.7 bar)
Minimum Dielectric
2.0 dielectric rods / 1.7 horns
ENVIRONMENT
Operating Temperature Range
-40° to +175° F (-40° to +80° C)
LCD Operating Temp. Range
-5° to +160° F (-20° to +70° C)
Storage Temperature
-50° to +175° F (-46° to +80° C)
Humidity
0-99%, non-condensing
Electromagnetic Compatibility
Meets CE requirements EN 50081-2, EN 50082-2
PERFORMANCE (Reference: Reflection from ideal reflector at +70° F / +20° C)
Linearity
±0.4" or 0.1% of tank height
Measured Error
±0.4" or 0.1% of tank height
Resolution
0.1"
Repeatability
±0.2" or 0.05% of tank height
Warm-up Time
30 seconds
Ambient Temperature Effect
Temperature effect 0.05% per 10° C
Process Dielectric Effect
< 0.3 inch within selected range
Maximum Rate of Change
15 feet (4.5 meters) / minute
Pulsar transmitter with
a 6" horn antenna
7
MODEL
R82
Anatomy of a Model R82 Radar Transmitter and Sensor
The all-new R82 is a high-performance level
transmitter whose low cost makes it ideal for
everyday level applications. Its launcher orien-
Model R82 with a
cast aluminum
housing and a
Tefzel® antenna
(below); and a
Model 82 with a
Lexan® housing and
a polypropylene
antenna (right).
The Model R82 is a loop-powered,
tation and echo-rejection profiling are simplified for easy use. Its microwave beam is rotatable for optimized operation.
Housing Covers
TOP LEFT: Cast aluminum with
a tempered glass window.
TOP RIGHT: Lexan plastic with a
transparent cover.
Electronics Module
ABOVE: Module as positioned in
compartment shows LCD
and four-button keypad.
26 GHz, non-contact radar transmitter
that performs liquid level and volume
measurements in enclosed vessels.
The R82 offers high-performance at
an economical price point to reliably
measure out to a 40 ft. (12 m) maxi-
O-Ring
Aluminum Housing: Viton®
Lexan Housing: Buna-N
Housing Compartment
Shown in aluminum; available in
Lexan. Contains field wiring
compartment and electronics.
mum range.
The Model R82 provides unsurpassed
ease of configuration with either the
menu-driven 4-pushbutton, 2-line x
16-character display, HART digital
Radar Antenna
Shown in Tefzel;
available in
polypropylene.
Available in
two lengths.
communications, or PACTware. This
allows complete configuration via the
local user interface, or remotely with
the added capability of capturing
echo waveforms, and viewing trend
transmitter configuration parameters.
8
Operating Principle The R82 is based on
pulse-burst radar technology together with equivalent time sampling circuitry. Short bursts of 26
GHz microwave energy are emitted and subsequently reflected from the liquid level surface.
Radome sheds
condensation
)))
data, diagnostic conditions and all
Antenna horn is
encapsulated within
polypropylene or Tefzel.
MODEL
SYSTEM DESIGN
Measurement Principle
Pulse Burst Radar @ 26 GHz
INPUT
Measured Variable
R82
Level, determined by the time-of-flight of a radar pulse from the
transmitter to the product surface and back
Zero and Span
15" to 40 feet (0.4 to 12.2 m) as measured from threads
OUTPUT
Type
Analog: 4–20 mA with optional HART digital signal
Range
Analog: 3.8 to 20.5 mA useable (Namur NE43)
Digital: 0 to 999" (0 to 9999 cm)
Resolution
Analog: 0.01 mA
Digital: 0.1"
Loop Resistance
GP/IS/XP 400 Ω @ 24 VDC/20 mA; 350 Ω @ 24 VDC/22 mA
Diagnostic Alarm
Adjustable 3.6 mA, 22 mA, HOLD
Damping
Adjustable 0–45
Output at Antenna
< 0.1 mW (avg), < 2 mW (max)
USER INTERFACE
Keypad
Four-button, menu-driven data entry and system security
Indication
Two-line × 16-character display
Digital Communication
HART Version 5 compatible
POWER (Measured at instrument terminals)
General Purpose/Intrinsically Safe 16 to 36 VDC
HOUSING
Material
Lexan base and cover or
Cast aluminum A356T6 (< 0.2% copper)
⁄4" NPT, M20
Cable Entry
3
Ingress Protection
Lexan Housing: NEMA 6P (IP67/68
Aluminum Housing: NEMA 4X/6P (IP67/68)
ANTENNA
Wetted Surfaces
Encapsulated Horn: Polypropylene or Tefzel` (optional)
Polypropylene or Tefzel
Maximum Process Temperature -40 to +200° F (-40 to +93° C) @ atmos
Maximum Process Pressure
Vacuum to 200 psig @ +70° F (-14.5 to 13.8 bar)
Minimum Dielectric
1.7 (application dependent)
Process Connections
2" NPT/BSP sanitary flanges
ENVIRONMENT
Operating Temperature Range
-40° to +175° F (-40° to +80° C)
LCD Operating Temp. Range
-5° to +160° F (-20° to +70° C)
Storage Temperature
-50° to +175° F (-46° to +80° C)
Humidity
0-99%, non-condensing
Electromagnetic
Meets CE requirements EN 50081-2, EN 50082-2
PERFORMANCE
Reference Conditions
Reflection from ideal reflector at +70° F (+20° C)
Linearity
±0.2" (5 mm) or 0.05% of tank height (whichever is greater)
Measured Error
±0.2" (5 mm) or 0.05% of tank height (whichever is greater)
Resolution
0.1" (2.5 mm)
Repeatability
±0.1" (2.5 mm) or 0.025% of tank height
Warm-up Time
30 seconds
Ambient Temperature Effect
0.05% per 10° C
Process Dielectric Effect
< 0.3 inch within selected range
Maximum Rate of Change
180 inches (450 cm) / minute
User Interface
of the Model R82
9
APPLICATION SUITABILITY
RX5
R82
Suitability for some applications below may require optional materials or components
L
Radar Transmitter
Radar Transmitter
Compare key application
parameters of the Pulsar RX5
and Model R82 transmitters
Transmitters are
shown in correct
relative size
MEASUREMENT CAPABILITY
Level of Liquid or Slurry
Level or Volume of Liquid or Slurry
OPERATING FREQUENCY
5.8 GHz (Europe) / 6.3 GHz (USA)
26 GHz
VESSEL TYPES
Closed Metallic & Non-metallic Vessels
Closed Metallic, Non-metallic Vessels
STILLWELL
Steel Stillwells Only
2" Metal Stillwell Only
VOLUME
Not Applicable
Utilizes 20-point Table
RANGE 16" to 40 feet (12 m)
Suitable
Suitable
Suitable
Not Suitable
MAXIMUM ANTENNA TEMP
To +400° F (+204° C) @ atmos
To +200° F (+93° C) @ atmos
MAXIMUM ANTENNA PRESSURE
To 675 psig (46.5 bar)
To 200 psig (13.8 bar) @ +70° F
MINIMUM DIELECTRIC
1.7 with Horn Antennas
1.7
QUICK CONNECT/DISCONNECT
Yes
No
AGGRESSIVE CHEMICALS
Use All-PP or All-Halar Rod Antennas
Use Tefzel Antenna
FOAM, AGITATION, BUILDUP
Slightly Affected
Moderately Affected
REACTOR MEASUREMENT
Recommended
Marginally Recommended
HYGIENIC, CIP/SIP APPLICATIONS
Not Suitable
Suitable
SAFETY INTEGRITY LEVEL
SIL 1
SIL 1
HAZARDOUS APPROVALS
IS, XP and Non-Incendive
IS and Non-Incendive
TELECOMMUNICATION APPROVALS
FCC, IC, RTTE
FCC, IC, RTTE
To 65 feet (19.8 m)
10
The Most Efficient PC Configuration Tool
for Pulsar and Model R82 Transmitters
PACTware is the modern, user-friendly adjustment software that
enables quick configuration and diagnostics of your radar transmitters.
With your PC connected through a serial interface to the HART loop,
all functionality can be managed remotely anywhere on the loop.
Level Monitoring Screen Continuously viewing
the level in a tank is the starting point for
PACTware. The position of liquid level can be
viewed in a simple visual format on your PC.
Level and Output values are shown numerically
as well. The screen can be left open to show
the relative position of the liquid level.
Level Monitoring Screen
Parameters Screen Every parameter in your
radar transmitter can be monitored and modified
remotely with a few clicks of the mouse. From
units of measure to settings for dielectric, each
parameter can be viewed or changed to suit
application conditions. Parameters can be developed offline or transferred between transmitters.
Trending Screen The ability to trend data
Parameters Screen
over a period of time allows insight into overall
operation of your radar. Trending values are
invaluable when attempting advanced
configuration or troubleshooting. PACTware
PC software has the ability to track all parameters of your radar device and save them as a
text or picture file.
Echo Wave Form Screen This screen yields a
Process Trend Screen
wealth of useful information: Level (X-axis), Signal
Quality (Y-axis), Actual Echo Curve (black line),
False Target Profile (red line), and Minimum
Threshold (blue line). Blue hash marks show the
location and signal quality of the target currently
detected as liquid level. False Target Rejection—a
GET CONNECTED Simply connect the
HART/RS232 or HART/USB serial interface from the PC to the two-wire loop.
common issue among all non-contact, transit-time
devices—can be accessed from this screen.
Echo Wave Form Screen
11
CORPORATE HEADQUARTERS
5300 Belmont Road • Downers Grove, Illinois 60515-4499 USA
Phone: 630-969-4000 • Fax: 630-969-9489
magnetrol.com • [email protected]
EUROPEAN HEADQUARTERS
Heikensstraat 6 • 9240 Zele, Belgium
Phone: 052 45.11.11 • Fax: 052 45.09.93
BRAZIL: Av. Dr. Mauro Lindemberg Monteiro • 185-Jd. Santa Fé, Osasco • São Paulo CEP 06278-010
CANADA: 145 Jardin Drive, Units 1 & 2 • Concord, Ontario L4K 1X7
CHINA: Plant 6, No. 191, Huajin Road • Minhang District • Shanghai 201109
DEUTSCHLAND: Alte Ziegelei 2–4 • D-51491 Overath
DUBAI: DAFZA Office 5AE 722, P.O. Box 293671 • Dubai, United Arab Emirates
INDIA: C-20 Community Centre • Janakpuri, New Delhi 110 058
ITALIA: Via Arese, 12 • 20159 Milano
SINGAPORE: 33 Ubi Avenue 3 • #05-10 Vertex • Singapore 408868
UNITED KINGDOM: Regent Business Centre • Jubilee Road • Burgess Hill, West Sussex RH15 9TL
Copyright © 2009 Magnetrol International. All rights reserved. Printed in the USA.
Pulsar, Eclipse and Horizon are trademarks of Magnetrol International. HART is a registered trademark of The HART Communication Foundation. Lexan is a registered trademark of SABIC Innovative Plastics.
PACTware is a trademark of the PACTware Consortium. Hastelloy and C22 are registered trademarks of Haynes International. Aegis is a registered trademark of Freudenberg-NOK.
Kynar is a registered trademark of Atofina. Tefzel is a registered trademark of E.I. du Pont de Nemours & Co. Viton and Kalrez are registered trademarks of DuPont Performance Elastomers.
Monel is a registered trademark of Special Metals Corporation. Halar is a registered trademark of Solvay Solexis.
Bulletin: 58-100.2 • Effective: July 2009