Siemens SITRANS LR 460 User Manual
Instruction Manual January 2007
sitrans
LR 460
Safety Guidelines: Warning notices must be observed to ensure personal safety as well as that of
others, and to protect the product and the connected equipment. These warning notices are
accompanied by a clarification of the level of caution to be observed.
Qualified Personnel: This device/system may only be set up and operated in conjunction with this
manual. Qualified personnel are only authorized to install and operate this equipment in accordance with
established safety practices and standards.
Unit Repair and Excluded Liability:
• The user is responsible for all changes and repairs made to the device by the user or the user’s
agent.
• All new components are to be provided by Siemens Milltronics Process Instruments Inc.
• Restrict repair to faulty components only.
• Do not reuse faulty components.
Warning: This product can only function properly and safely if it is correctly transported, stored,
installed, set up, operated, and maintained.
Note: Always use product in accordance with specifications.
Copyright Siemens Milltronics Process
Disclaimer of Liability
Instruments Inc. 2007. All Rights Reserved
This document is available in bound version and in
electronic version. We encourage users to purchase
authorized bound manuals, or to view electronic versions
as designed and authored by Siemens Milltronics Process
Instruments Inc. Siemens Milltronics Process Instruments
Inc. will not be responsible for the contents of partial or
whole reproductions of either bound or electronic
versions.
While we have verified the contents of this
manual for agreement with the
instrumentation described, variations
remain possible. Thus we cannot
guarantee full agreement. The contents of
this manual are regularly reviewed and
corrections are included in subsequent
editions. We welcome all suggestions for
improvement.
Technical data subject to change.
MILLTRONICS®is a registered trademark of Siemens Milltronics Process Instruments Inc.
Contact SMPI Technical Publications at the following address:
Technical Publications
Siemens Milltronics Process Instruments Inc.
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario, Canada, K9J 7B1
Email: techpubs.smpi@siemens.com
• For a selection of Siemens Milltronics level measurement manuals, go to:
www. siemens.com/processautomation. Under Process Instrumentation, select
Measurement
• For a selection of Siemens Milltronics weighing manuals, go to:
www. siemens.com/processautomation. Under Weighing Technology, select
Weighing Systems
and then go to the manual archive listed under the product family.
and then go to the manual archive listed under the product family.
Level
Continuous
© Siemens Milltronics Process Instruments Inc. 2007
Table of Contents
Safety Notes .............................................................................................................................................1
Safety marking symbols ..............................................................................................................1
FCC and IC Conformity ...........................................................................................................................2
The Manual ...............................................................................................................................................3
Support ............................................................................................................................................3
SITRANS LR 460 ................................................................................................................... 5
Specifications ......................................................................................................................6
Power............................................................................................................................................. 6
Performance................................................................................................................................. 6
Interface ........................................................................................................................................ 7
Programmer (infrared keypad) ................................................................................................ 8
Mechanical................................................................................................................................... 8
Environmental .............................................................................................................................. 9
Process.......................................................................................................................................... 9
Communication............................................................................................................................ 9
Approvals .................................................................................................................................... 10
Dimensions ........................................................................................................................................... 11
Standard configuration
Installation ......................................................................................................................... 12
Mounting Location ................................................................................................................................12
Key considerations ......................................................................................................................13
Nozzle design ............................................................................................................................. 13
Nozzle location........................................................................................................................... 13
Device orientation ..................................................................................................................... 13
Installation in vessel with obstructions .................................................................................14
Easy Aimer Installation ........................................................................................................................15
Air Purging System (Optional) ............................................................................................................16
Universal Slotted Flange (for use with Air Purging Option only) .....................................17
Optional Dust Cap .................................................................................................................................18
............................................................................................................. 11
Table o f Co n t en t s
Wiring .................................................................................................................................. 19
Connecting SITRANS LR 460 ..............................................................................................................19
HART wiring ..................................................................................................................................20
PROFIBUS wiring ........................................................................................................................21
Hazardous area installations .............................................................................................................23
Product Nameplate .....................................................................................................................23
Instructions specific to hazardous area installations ........................................................23
Quick Start .......................................................................................................................... 26
Activating SITRANS LR 460 ................................................................................................................26
RUN mode display .......................................................................................................................26
Programming SITRANS LR 460 ..........................................................................................................27
The handheld programmer and PROGRAM mode display ...............................................27
i
Quick Start Wizard via the handheld programmer .............................................................28
Quick Start Wizard via SIMATIC PDM ...................................................................................30
Device Description (DD) .......................................................................................................... 30
Quick Start Wizard steps......................................................................................................... 31
Level application example ...................................................................................................................34
Auto False Echo Suppression ............................................................................................................35
Operating SITRANS LR 460 via SIMATIC PDM ............................................................ 36
Table o f C o ten t s
Functions in SIMATIC PDM ................................................................................................................36
SIMATIC PDM Rev. 6.0, SP2 Features ....................................................................................36
Echo profile saving and viewing............................................................................................ 37
Trend Diagram (Level Trend over Time) ............................................................................. 37
Manual TVT Shaper.................................................................................................................. 38
Accessing Functions in PDM ...................................................................................................39
Changing parameter settings via SIMATIC PDM ...............................................................40
Configuring a new device .........................................................................................................40
Calibrating LR 460 via PDM .......................................................................................................41
Parameters accessed via pull-down menus ........................................................................41
Reset ............................................................................................................................................ 41
Configuration Flag Reset (HART only).................................................................................. 41
Auto False Echo Suppression ................................................................................................ 41
D/A (Digital/Analog) Trim ........................................................................................................ 42
Simulate AO (Analog Output) ................................................................................................. 42
Simulation ................................................................................................................................... 42
Parameter Reference .......................................................................................................43
Parameter menus ........................................................................................................................43
Pull-down menus via SIMATIC PDM .....................................................................................43
Quick Start Wizard ................................................................................................................................44
Quick Start .............................................................................................................................................44
Language .....................................................................................................................................44
Application Type ....................................................................................................................... 44
Operation .................................................................................................................................... 44
Units.............................................................................................................................................. 45
High Calibration Point .............................................................................................................. 45
Low Calibration Point............................................................................................................... 45
Rate............................................................................................................................................... 45
Apply Changes........................................................................................................................... 45
Identification ........................................................................................................................................46
Operation Unit ............................................................................................................................46
Configuration ..............................................................................................................................46
Device .......................................................................................................................................... 48
Statistics ...................................................................................................................................... 49
Input .......................................................................................................................................................50
Static Revision Number ...........................................................................................................50
Class .............................................................................................................................................50
Standard Setup ..........................................................................................................................50
Sensor Calibration .................................................................................................................... 51
Measuring Limits....................................................................................................................... 53
Detailed Setup ........................................................................................................................... 53
ii
Echo Information ....................................................................................................................... 61
Output ....................................................................................................................................................61
AIFB1............................................................................................................................................ 61
AIFB2............................................................................................................................................ 65
mA Output ................................................................................................................................... 65
Relay Configuration .................................................................................................................. 67
Device Certification ..................................................................................................................67
Remaining Device Lifetime ..................................................................................................... 68
Remaining Sensor Lifetime ..................................................................................................... 68
Service Interval.......................................................................................................................... 69
Calibration Interval.................................................................................................................... 69
Appendix A: Technical Reference ................................................................................. 71
Principles of Operation ........................................................................................................................71
Measurement Response .....................................................................................................................71
Echo Processing ...................................................................................................................................72
Profile monitoring via SIMATIC PDM .....................................................................................72
Time Varying Threshold (TVT)................................................................................................ 72
Echo selection ..............................................................................................................................72
False Echoes ...........................................................................................................................................73
Auto False-Echo Suppression ..................................................................................................73
Near Range (Blanking) ..............................................................................................................74
Echo confidence ....................................................................................................................................74
Loss of Echo (LOE) .......................................................................................................................74
LOE Timer.................................................................................................................................... 74
Fail-safe Mode .......................................................................................................................................74
Maximum Process Temperature Chart ............................................................................................76
Table o f Co n t en t s
Appendix B: Troubleshooting .........................................................................................77
General Fault Codes/PROFIBUS PA Extended Diagnostics ......................................................80
Appendix C: Maintenance .............................................................................................. 84
Unit Repair and Excluded Liability ....................................................................................................84
Appendix D: Local Operation Interface ........................................................................ 85
The LCD Display .....................................................................................................................................85
RUN mode (startup display) .....................................................................................................85
PROGRAM Mode Display .........................................................................................................85
The handheld programmer .................................................................................................................86
Hand-held programmer: key functions in RUN mode ........................................................86
PROGRAMMING via the handheld programmer ................................................................86
Hand-held programmer: key functions in Navigation mode .......................................... 87
Hand-held programmer: key functions in Edit mode........................................................ 87
Individual Parameter Reset .................................................................................................... 87
Appendix E: HART Communications ............................................................................88
HART Device Description (DD) ...........................................................................................................88
SIMATIC Process Device Manager (PDM) .....................................................................................88
HART modem interface for SIMATIC PDM ..........................................................................88
HART Version .........................................................................................................................................89
iii
Burst Mode ...................................................................................................................................89
HART Communication Parameter .....................................................................................................89
Appendix F: HART Information Structure .....................................................................90
Block Model for recording and processing measured values ...................................................90
Description of the blocks ...........................................................................................................91
Appendix G: Remote operation via PROFIBUS PA .....................................................92
Table o f C o ten t s
Configuration tool ..................................................................................................................................92
SIMATIC PDM ..............................................................................................................................92
Device Description.................................................................................................................... 92
Configuration ................................................................................................................................93
The GSD file................................................................................................................................ 93
Setting the PROFIBUS address.............................................................................................. 93
Configuring a new device: procedure.................................................................................. 93
Configuring PROFIBUS PA with an S7-300/ 400 PLC ........................................................ 94
Calibration via SIMATIC PDM ..................................................................................................94
Appendix H: Communication via PROFIBUS PA ......................................................... 95
Cyclic versus Acyclic Data ..................................................................................................................95
Cyclic Data ....................................................................................................................................95
Status Byte .............................................................................................................................................96
Diagnostics .............................................................................................................................................97
Diagnosis reply (applies only to cyclic masters) .................................................................97
Acyclic Diagnostics .....................................................................................................................97
Acyclic Extended Diagnostics (General Fault Codes) ........................................................98
Acyclic Data Transmission ..................................................................................................................98
Appendix J: PROFIBUS PA Profile Structure ............................................................... 99
PROFIBUS Level Device Design ........................................................................................................99
Block Model for recording and processing measured values ...................................... 99
Description of the blocks ........................................................................................................ 100
Level Transducer Block function groups ......................................................................... 100
Analog Input Function Blocks 1 and 2............................................................................... 102
Appendix K: Software Revision History ..................................................................... 105
Glossary ............................................................................................................................107
Index .................................................................................................................................. 111
LCD menu structure ........................................................................................................ 113
iv
Safety Notes
Special attention must be paid to warnings and notes highlighted from the rest of the text
by grey boxes.
WARNING: relates to a caution symbol on the product, and means
that failure to observe the necessary precautions can result in death,
serious injury, and/or considerable material damage.
WARNING: means that failure to observe the necessary precautions
can result in death, serious injury, and/or considerable material
damage.
Note:
means important information about the product or that part of the operating
manual.
Safety marking symbols
In manual: On product: Description
Earth (ground) Terminal
Protective Conductor Terminal
Alternating Current
Direct Current
(Label on product: yellow background.) WARNING: refer
to accompanying documents (manual) for details.
SITRANS LR 460
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 1
FCC and IC Conformity
US Installations only: Federal Communications Commission (FCC) rules
WARNING: Changes or modifications not expressly approved by
Siemens Milltronics could void the user’s authority to operate the
equipment.
Notes:
• This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment.
• This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference to radio communications, in which case
SITRANS LR 460
the user will be required to correct the interference at his own expense.
Canadian Installations only: Industry Canada (IC) rules
Notes:
• This device shall be installed and operated in a completely enclosed container to
prevent RF emission, which otherwise can interfere with aeronautical navigation.
Installation shall be done by trained installers, in strict compliance with the
manufacturer’s instructions.
• The use of this device is on a ’no-protection non-interference’ basis.
- The user shall accept operations of high powered radar in the same frequency
band, which may interfere with or damage this device.
- The user is responsible for removing, at the user’s expense, any device found to
interfere with primary licensing operations.
Page 2 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
The Manual
Note: Please follow the installation and operating procedures for a quick, trouble-free
installation and to ensure the maximum accuracy and reliability of your SITRANS
LR 460. This manual applies to the SITRANS LR 460 only.
This manual will help you set up your SITRANS LR 460 for optimum performance. We
always welcome suggestions and comments about manual content, design, and
accessibility. Please direct your comments to techpubs.smpi@siemens.com.
For other Siemens Milltronics level measurement manuals, go to:
www.siemens.com/level, and look under Level Measurement.
Application Examples
The application example used in this manual illustrates a typical installation using
SITRANS LR 460. There is often more than one way to approach an application, and other
configurations may also apply. If the example does not apply to your application, check
the applicable parameter reference for the available options.
Support
If you have questions, you can access our 24-hour hotline at:
www.siemens.com/automation/support-request
Phone: +49 180 50 50 222
Abbreviations and Identifications
SITRANS LR 460
Short
form
A/D Analog to digital
AIFB Analog Input Function Block
CE / FM /
CSA
C
i
D/A Digital to analog
DAC Digital Analog Converter
DCS Distributed Control System control room apparatus
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 3
Long Form Description Units
Conformitè Europèene /
Factory Mutual / Canadian
Standards Association
Internal capacitance
safety approval
SITRANS LR 460
Short
form
Long Form Description
FV Full Vacuum
ESD Electrostatic Discharge
HART PV HART Primary Variable Output value from AIFB1
HART SV HART Secondary Variable Output value from AIFB2
I
i
I
o
Input current mA
Output current mA
IS Intrinsically Safe safety approval
L
i
Internal inductance mH
LR Level Radar
LTB Level Transducer Block
mH milliHenry 10
µF microFarad 10
µs microsecond 10
PA
PDM
Process Automation
(PROFIBUS)
Process Device Manager
(SIMATIC)
pF pico Farads 10
-3
-6
-6
-12
ppm parts per million
psia pounds/square inch absolute
PV Primary Value1 default measured value
RH relative humidity
SCFM standard cubic feet/minute
SV1 Secondary Value1
SV2 Secondary Value2
1
1
LTB level output (level units)
LTB distance output (sensor
units)
TV Transmitter Variable
TVT Time Varying Threshold sensitivity threshold
U
i
U
o
1.
Input voltage V
Output voltage V
The output from the Level Transducer Block can be called the Primary Value (or
Secondary Value). When it becomes the input to the AIFB, it is called the
Process Variable. It is distinct from the HART PV.
Units
(cont’d)
Henry
Farad
Second
Farad
Page 4 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
SITRANS LR 460
SITRANS LR 460 is a 4-wire 24 GHz FMCW (Frequency Modulated/Continuous Wave) radar
level transmitter with advanced signal processing for continuous monitoring of solids up
to 100 meters. It is ideal for extreme dust and difficult applications. The Easy Aimer design
makes it easy to install the device and orient the signal towards the material angle of
repose. The high frequency signal creates a narrow emission cone, which makes the
LR 460 quite insensitive to vessel interferences.
SITRANS LR 460
SITRANS LR 460 is available with an optional air purge connection for cleaning the interior
of the antenna.
Programming
SITRANS LR 460 carries out its level measurement function according to the set of built-in
parameter tables. You can make parameter changes via the Siemens Milltronics
handheld programmer, a PC running SIMATIC PDM or a HART handheld communicator.
Approvals and Certificates
SITRANS LR 460 is available with General Purpose approval, or approval for hazardous
areas containing dust. For details see
Approvals
on page 10.
System Implementation
SITRANS LR 460 supports HART communication protocol, or PROFIBUS PA (optional), and
SIMATIC PDM software.
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 5
Specifications
Note: Siemens Milltronics makes every attempt to ensure the accuracy of these
specifications, but reserves the right to change them at any time.
SITRANS LR 460
Power
Power Supply
• 100 to 230 V AC,
• 24 V DC, +25/-20%, 6 W
• Fuse (AC) SI1 Fast acting ceramic, 4 x 20 mm, 1 A, 250 V AC
• Fuse (DC) SI1 Fast acting ceramic, 4 x 20 mm, 2 A, 250 V AC
Performance
Reference operating conditions according to IEC 60770-1
• ambient temperature +15 to +25
• humidity 45 to 75% relative humidity
• ambient pressure 860 to 1060 mbar (12.47 to 15.37 psi)
Measurement Accuracy (measured in accordance with IEC 60770-1)
• non-linearity (accuracy) greater of 25 mm (1”) or 0.25% of span (including
• non-repeatability 10 mm (0.4”) [included in non-linearity specification]
• deadband (resolution) 10 mm (0.4”) [included in non-linearity specification]
• hysteresis error 0 mm
±15%, 50/60 Hz, 6 W
SI2 Slow-Blow, 4 x 20 mm, 0.63 A, 250 V AC
SI2 Slow-Blow, 4 x 20 mm, 0.63 A, 250 V AC
hysteresis and non-repeatability)
o
C
Analog Output Accuracy (measured in accordance with IEC 60770-1)
• non-linearity (accuracy) 0.100% of span (including hysteresis and repeatability)
• non-repeatability 0.030% of span (included in non-linearity specification)
• deadband (resolution) 0.030% of span [included in non-linearity specification]
• hysteresis error 0%
Specifications
Frequency 25 GHz nominal
Measurement range
1.
Referenced from flange face.
Page 6 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
1
0.35 to 100 m (1.15 to 328.08 ft).
Long-term stability ≤ ± 1 mm/year
Near Range (blanking) 0.35 m (1.15 ft)
Update time mA output and loop display is updated once per
second
Beam angle
• 3" horn: 11° at –3 dB boundary
• 4" horn: 8° at –3 dB boundary
Memory
• non-volatile EEPROM
• no battery required
Interface
Analog output (Not applicable to PROFIBUS PA option)
• signal range 4 to 20 mA
upper limit 20 to 23 mA adjustable
• fail signal 3.6 mA to 23 mA; or last value
• load Max. 600 Ω; for HART
Digital output
• function Configurable as a device status or limit value (level)
• signal type Relay, either NCC or NOC function, max. 50 V DC,
max. 200 mA, rating max. 5 W.
Self-resetting fuse, R
Electrical isolation Outputs electrically isolated from the power supply and
from each other
1
communication min. 230 Ω
=9 Ω
i
Display
• LCD two lines of 16 characters each, configurable for the
following displays:
level, amplitude, digital output,
temperature, validity, signal-to-noise ratio,
output current, distance
1.
HART® is a registered trademark of HART Communication Foundation.
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 7
Specifications
Programmer (infrared keypad)
1
Siemens Milltronics infrared IS (Intrinsically Safe) handheld programmer for hazardous
and all other locations (battery is non-replaceable)
• approval: ATEX II 1 G EEx ia IIC T4, certificate SIRA 01ATEX2147
CSA and FM Class I, Div. 1, Gr. A, B, C, D T6 @ max.
ambient temperature of 40 °C (104 °F)
• ambient temperature: −20 to 40 °C (−5 to 104 °F)
• interface: proprietary infrared pulse signal
• power: 3 V lithium battery
• weight: 150 g (0.3 lb)
•color: black
Mechanical
Wetted parts (in contact
with the process)
• flange and horn 304 stainless steel (or equivalent)
•emitter PTFE
Process Connection
• universal flanges 3"/80 mm, 4"/100 mm, 6"/150 mm (See page 17 for flange
dimensions.)
Pressure (vessel) 0.5 bar (7.25 psi) maximum
Horn
• 3" horn 2.93" (74.5 mm) diameter
• 4" horn 3.84" (97.5 mm) diameter
Weight
• Weight of instrument and flange
Process Connection Weight
Universal, 3" / 80 mm flange with 3" horn 6.1 kg (13.4 lbs)
Universal, 4" / 100 mm flange with 4" horn 10.6 kg (23.36 lbs)
Universal, 6" / 160 mm flange with 4"horn TBA
Specifications
1.
Ordered separately.
Page 8 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
Enclosure
• construction Die-cast aluminum, painted (polyester powder-coated)
• conduit 2 x M20
or 2 x ½” NPT (option)
• ingress protection Type 4X/NEMA 4X, Type 6/NEMA 6, IP67
Dust cap (optional)
• 3" PTFE, pipe clamp connection, O.D. 95 mm (3.74")
• 4" PTFE, pipe clamp connection, O.D. 120 mm (4.72")
Air Purge Connection
• equipped with female 1/8" NPT fitting
Environmental
• location indoor/outdoor
• altitude 2000 m (6562 ft) max
• relative humidity suitable for outdoor (Type / NEMA 4X, 6/ IP67)
• installation category II
• pollution degree 4
• permitted ambient -40 to 65 °C (-40 to 149 °F) (non-hazardous version)
temperature
3
LCD: -10 to 55 °C (14 to 131 °F)
Observe the temperature classes in hazardous areas!
Process
• Process temperature
• Pressure (vessel) 0.5 bar (7.25 psi) maximum
2
-40 to 200 °C (-40 to 392 °F)
1
Communication
Communication: HART
• Load 230 to 600 Ω, 230 to 500 Ω when connecting a coupling
module
• Max. Line Length multi-wire: ≤ 1500 m (4921 ft)
• Protocol HART, Version 5.1
1.
Use only approved, suitable sized hubs for watertight applications.
2.
Process temperature varies with ambient temperature. See Process/Ambient de-rating curves in
Appendix III.
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 9
Specifications
Communication: PROFIBUS PA
•Protocol PROFIBUS PA,
technology: IEC 61158-2, slave-functionality
•Device Class B
• Device Profile 3.01
Bus current (PROFIBUS PA) 10.5 mA
Approvals
• Hazardous areas FM/CSA Class II, Div. 1, Groups E,F and G, Class III
ATEX II 1 D; 1/2 D, 2D T85 deg C
• General CSAus/c, FM, CE
• Radio FCC, Industry Canada, European Radio (R&TTE)
Specifications
Page 10 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
Dimensions
Standard configuration
connection
cover
electronics
cover
purge
connection
Easy Aimer ball
locking bolts
universal
slotted flange
(see page 17
for details)
1 2
204 mm
(8.0")
287 mm
(11.29")
reference
point
228 mm
(8.97")
285 mm
(11.22")
horn antenna
74.5 mm
(2.93")
97.5 mm
(3.84")
1.
Consult factory when using horn extension in applications subject to shock and vibration.
2.
Universal flange mates with EN 1092-1 / ASME B16.5 / JIS B2238 bolt hole pattern.
3" horn
4" horn
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 11
Specifications
Installation
WARNINGS:
• SITRANS LR 460 is to be used only in the manner outlined in this
manual, otherwise protection provided by the equipment may be
impaired.
• Installation shall only be performed by qualified personnel and in
accordance with local governing regulations.
Notes:
• For European Union and member countries, installation must be according to ETSI
EN 302372.
• Refer to device nameplate for approval information.
• Use appropriate conduit and conduit fittings or cable glands, to maintain IP or NEMA
rating.
• Observe all maximum permissible ambient and process temperatures. Refer to
Maximum Process Temperature Chart
• For US and Canadian installations, see
Mounting Location
Notes:
• Provide easy access for viewing the display and programming via the handheld
programmer.
• Provide an environment suitable to the housing rating and materials of construction.
• Provide a sun shield if the device is mounted in direct sunlight.
on page 76.
FCC and IC Conformity
on page 2.
ambient temperature
max. 65 °C (149 °F)-
flange
temperature
process temperature
max. 200 °C (392 °F)
Installation
Page 12 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
Key considerations
• Correct location is critical to a successful application.
• Avoid reflective interference from vessel walls and obstructions by following the
guidelines below.
Nozzle design
• Bottom edge of horn must project
from nozzle.
• Nozzle must allow adequate
clearance to allow positioning if LR
460 has to be at an angle so that
emission cone perpendicular to
material surface.
Min. clearance:
10 mm (0.4")
Nozzle location
• Locate antenna at least 1 meter away
from side wall.
• Keep emission cone free of interference
from ladders, pipes, I-beams or filling
streams.
• Make allowance for beam spread to
avoid interference with the emission
cone.
Device orientation
• Align the antenna so that the radar
cone is perpendicular to the surface
of the monitored material, if possible.
Easy Aimer Installation
(See
15.)
• To compensate for vessels with
obstructions, see also
Reference Point
Polarization
on page 14.
on page
min. 1 m (39")
0
0
4
R
L
S
N
TRA
I
S
emission
cone
8°
11°
0
0
4
R
L
S
N
A
TR
I
S
4" horn
3"
horn
Installation
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 13
Installation in vessel with obstructions
Polarization Reference Point
Obstructions such as ladders, pipes, or the fill path, can cause false reflections. To avoid
this, use the Polarization Reference Point to orient the device.
• A small center punch mark provides a polarization reference point.
• To get the best signal, rotate the device till the Polarization Reference Point either
faces towards the obstruction, or faces away from the obstruction (at 180 degrees).
Note: the device can be rotated through 360
degrees without damage to the unit.
Polarization
Reference
Poi nt
Installation
Page 14 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
Easy Aimer Installation
Note: When the Easy Aimer ball is loosened, the device is free to tilt to a maximum of
30°.
Easy Aimer ball locking bolts
top clamping plate (upper socket)
0.38"
(10 mm)
285 mm
(11.22")
30°
max.
1. Holding the electronics enclosure firmly,
loosen the Easy Aimer ball locking bolts and
gently reposition the enclosure.
2. Direct SITRANS LR 460 so the horn antenna is
pointed at an angle perpendicular to the
material surface, if possible. (As a guide, aim
the beam at a point approximately 2/3 of the
way across the tank diameter.)
3. When the desired position is reached, retighten the 5 bolts to 15-23 N m (11 to 17 Lbf-ft).
bottom clamping plate
(lower socket)
customer gasket as
required [recommended
thickness 1.5 to 1.8 mm (0.06
to 0.07")]
customer mounting plat e,
as required
ø 4" (102 mm) min.,
central opening
Easy Aimer
0
0
SLR4
N
TRA
I
S
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 15
Installation
Air Purging System (Optional)
For more frequent cleaning, a purging system can be installed between the flange and the
horn antenna. The system provides an 1/8" inlet (female thread) on the flange where
cooling air or cleaning fluid passes through the flange and exits the inside of the horn to
clean it. The customer will supply the purging medium by a manual or automatic valve
system.
This option is only available with the universal flange for purging shown on page 17.
Notes:
• The Air Purge feature should not be activated with a dust cap in place.
• Purge duration, pressure, and interval, will vary with each application. It is the user’s
responsibility to determine the requirements depending on the application and
cleaning required.
• Short duration bursts of high pressure provide more effective cleaning than
continuous low pressure air.
• Some dust particles are highly abrasive and can be drawn into the inside of the horn
during purge cleaning, damaging the internal PTFE emitter of the antenna. A
replacement kit is available from your local Siemens Milltronics representative.
• It is the customer’s responsibility to ensure that any vacuum or pressure in the
measured vessel is maintained, considering the hole that passes through the
process connection and SITRANS LR 460 antenna system.
1
Recommendation for
effective cleaning
Pressure: 90 to 110 psi
Inlet flow: 10 SCFM
1
(Flow rate versus applied pressure)
Air Pressure Approx. inlet volume flow rate
Air Consumption
20 5 SCFM
40 6 SCFM
60 8 SCFM
80 9 SCFM
90 10 SCFM
• The purge connection is closed
by the manufacturer, using a 1/8"
plug.
• When the plug is removed to
connect a purging system, the
operator is responsible for
ensuring that the purging circuit
conforms to "Ex" requirements:
for example, by fitting an NRV
valve.
purged process
connection with factoryinstalled 1/8" NPT plug
Installation
1.
SCFM (standard cubic feet/minute) referenced to 14.7 psia, 68°F and 36% relative humidity (RH).
Page 16 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
Universal Slotted Flange (for use with Air Purging Option only)
WARNING: The user is responsible for the selection of bolting and
gasket materials which will fall within the limits of the flange and its
intended use and which are suitable for the service conditions.
number of slotted bolt holes
bolt hole circle max. diameter
bolt hole circle
min. diameter
flange O.D.
thickness
section A-A
Slotted Flange Dimensions (see above)
Pipe
Size
3" or
80 mm
4" or
100 mm
6" or
150 mm
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 17
Flange
O.D.
7.87"
(200 mm)
9.00"
(229 mm)
11.22"
(285 mm)
Thick-
ness (s)
0.38"
(9.65 mm)
0.38"
(9.65 mm)
0.38"
(9.65 mm)
Bolt Hole
Circle Max Ø
6.30"
(160 mm)
7. 52 "
(191 mm)
9.53"
(242 mm)
Bolt Hole
Circle Min Ø
5.91"
(150 mm)
6.89"
(175 mm)
9.45"
(240 mm)
Bolt Hole
radius
0.38"
(9.5 mm)
0.38"
(9.5 mm)
0.45"
(11.5 mm)
No. of
Slotted
Holes
8
8
8
Installation
Optional Dust Cap
Note: The dust cap must be removed before using the Air Purge feature (see
Purging System (Optional)
The dust cap fits onto the end of the horn and prevents the buildup of dust and other
process material inside the horn.
• It is particularly useful for applications in areas of high humidity, or with bulk solids
with a high moisture content.
• Two sizes are available, to fit the standard 3" and 4" horns.
on page 16).
Air
Installation
1. Thoroughly clean inside the horn. If you remove the horn for easier cleaning, take
care not to damage or bend the plastic emitter.
plastic emitter
groove
ridge
dust cap
clamp screw
2. Press the cap firmly onto the horn until the ridge inside the cap snaps into position in
the groove on the outside of the horn.
3. Hand tighten the adjustable clamp supplied to secure the cap.
4. Use a screwdriver or nut driver to tighten the clamp screw until the clamp provides
an air-tight seal.
Note: It is critical to ensure no moisture can be trapped inside.
Installation
Page 18 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
Wiring
WARNINGS:
• Turn off power to the device before unscrewing the housing cover in a
hazardous area.
• All field wiring for AC models must have insulation suitable for at least
250 V.
• The DC input terminals shall be supplied from a source that provides
electrical isolation between the input and the output, in order to meet
the applicable safety requirements of IEC 61010-1.
• The equipment shall be protected by a fuse or circuit breaker of up to
16 A in the building installation.
• A circuit breaker or switch in the building installation, marked as the
disconnect switch, shall be in close proximity to the equipment and
within easy reach of the operator.
• To avoid short-circuits, do not connect a load resistance with bare
wires inside the connection box.
Notes:
• AC and DC input circuits: min. 14 AWG (2.5 sq. mm) copper wire.
• Lay power cables separately from communication wiring.
• Recommended torque on terminal clamping screws: 0.5 to 0.6 N m (0.37 to 0.44 Lbf-ft).
Wiring
mmmmm
Connecting SITRANS LR 460
1. Release the cover lock on the enclosure with a 3 mm Allen key and unscrew the
cover. (Use a screwdriver for extra leverage, if required.)
2. Loosen the cable gland and push the power cable through until it reaches the
terminal strip.
cover
lock
metal bracket
terminal
strip
HART wiring
(Go to
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 19
on page 20 or
PROFIBUS wiring
on page 21 for next steps.)
cable gland
power
cable
HART wiring
Note: LR 460 HART requires no power from the 4-20 mA loop.
mmmmm
Wirng
Connecting HART
Install in accordance with
number HCF_LIT-34), available from: http://www.hartcomm.org/technical/doclist.html
AC version
cable clam p
Rated temperature of
connection cables must
mA
exceed maximum ambient
temperature by at least 15 K
Wiring and Installation
DC version
earth
terminal
12645378
L1L
2
N
in the HART Application Guide (order
12645378
19-30 V
earth
terminal
cabl e clamp
Rated temperature of
connection cables must
mA
exceed maximum ambient
temperatu re by at least 15 K
Typical PLC/mA configuration with HART
Notes:
• For error-free communication via the HART protocol, a 250 Ohm resistor may be
required if the loop resistance is less than 250 Ohms.
• Only one HART communication device should be inserted in the loop.
PLC with mA
input card
.
= 250 Ω
R
PC/laptop with
HART modem
running PDM
HART
LR 460
Communicator
375
3. Connect the earth conductor of the power supply to the earth terminal on the
metal bracket inside the enclosure. Adjust the cable length so that the earth
conductor would be last to disconnect if cable is pulled.
Page 20 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
4. Tighten the cable gland and check the strain relief (pull and turn).
5. Replace the enclosure cover and hand tighten it. The sealing ring must be clean and
undamaged.
6. Tighten the screw on the cover lock.
7. Connect the external earth terminal located
between the cable glands to a ground
connection at your vessel. Use a cable with
a cross-section of 2.5 mm
2
or greater.
PROFIBUS wiring
Note: PROFIBUS PA is not polarity-sensitive.
Power Demands
To determine how many devices can be connected to a bus line, calculate the combined
maximum current consumption of all the connected devices: 10.5 mA for SITRANS LR 460.
Allow a current reserve for safety.
Bus Termination
PROFIBUS PA MUST be terminated at both extreme ends of the cable for it to work
properly. Please refer to the PROFIBUS PA User and Installation Guidelines (order
number 2.092), available from www.profibus.com
Install in accordance with
PROFIBUS PA User and Installation Guidelines
2.092), available from www.profibus.com
.
(order number
.
cable
glands
earth
(ground)
terminal
Wiring
mmmmm
AC version
cable clam p
Rated temperature of
connection cables must
PROFI-
exceed maximum ambient
BUS PA
temperature by at least 15 K
earth
terminal
12645378
L1L
2
N
DC version
cabl e clamp
Rated temperature of
connection cables must
PROFI-
exceed maximum ambient
BUS PA
temperature by at least 15 K
12645378
19-30 V
earth
terminal
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 21
Connecting PROFIBUS PA
Typical PLC/mA configuration with PROFIBUS PA
mmmmm
Wirng
Class 1
Master
DP/PA
Coupler
PLC
SITRANS
LR 460
(Continued from
PROFIBUS PA
PROFIBUS PA
SITRANS
LR 460
Connecting SITRANS LR 460
Class 2
Master
PDM
SITRANS
LR 460
on page 19, step 2.)
ET200
HART
3. Connect the earth conductor of the power supply to the earth terminal on the
metal bracket inside the enclosure. Adjust the cable length so that the earth
conductor would be last to disconnect if cable is pulled.
4. Tighten the cable gland and check the strain relief (pull and turn).
5. Replace the enclosure cover and hand tighten it. The sealing ring must be clean and
undamaged.
6. Tighten the screw on the cover lock.
7. Connect the external earth terminal located
between the cable glands to a ground
connection at your vessel. Use a cable with
a cross-section of 2.5 mm
2
or greater.
cable
glands
earth
(ground)
terminal
Page 22 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
Hazardous area installations
Product Nameplate
Note: The nameplate shown is a typical example. Please check the nameplate on your
device for your specific device configuration.
SITRANS LR 460
7ML5426-0AA00-0AC-0
Serial #
GYZ/S1034567
Power Rating:
Enclosure:
Amb. Temp.:
Output:
IECEx SIR 06.0058X
Ex tD A20 IP67 T85°C
Do Not Open in an explosive dust atmosphere.
Siemens Milltronics Process Instruments Inc., Peterborough
Radar Level Meter
0518
0891
100 - 230 V , ±15%, 50/60 Hz, 6 W
TYPE/NEMA 4X, 6 / IP67
– 40°C to 65°C
4 - 20 mA HART
Made in Canada
Canada 267P-LR460
II 1D, 1/2 D, 2D
Ex tD A20 IP67 T85°C
SIRA 06ATEX9218X
Instructions specific to hazardous area installations
Wiring
mmmmm
(Reference European ATEX Directive 94/9/EC, Annex II, 1/0/6)
Note: Installation shall be performed only by qualified personnel and in accordance
with local governing regulations.
The following instructions apply to equipment covered by certificate number
Sira 06 ATEX 9218X.
1. For use and assembly, refer to the main instructions.
2. The equipment is certified for use as Category II 1D, 1/2 D & 2D equipment. The
Essential Health and Safety Requirements are assured by compliance with
IEC 61241-0: 2004 and IEC 61241-1: 2004.
3. The equipment may be used with dust and fibers with apparatus temperature
class T (see table below).
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 23
4. Thermal Data for 7ML5426 Series
mmmmm
Wirng
Device
category
1D, 1/2D, 2D
Permitted ambient
temperature at horn antenna
–40 °C (–40 °F) ≤ T
(+392 °F)
≤+200°C
amb
Permitted ambient
temperature at electronic
enclosure
–40 °C (–40 °F) ≤ T
(+149 °F)
amb
≤ +65°C
5. The equipment has not been assessed as a safety related device (as referred to by
Directive 94/9/EC Annex II, clause 1.5).
6. Installation and inspection of this equipment shall be carried out by suitably trained
personnel in accordance with the applicable code of practice (EN 61241-14 and EN
61241 –17 in Europe).
7. Repair of this equipment shall be carried out by suitably trained personnel in
accordance with the applicable code of practice.
8. Components to be incorporated into or used as replacements in the equipment shall
be fitted by suitably trained personnel in accordance with the manufacturer’s
documentation.
9. It is the user’s responsibility to ensure that a manual override is possible in order to
shut down the equipment, and that protective systems are incorporated within
automatic processes which deviate from the intended operating conditions,
provided that this does not compromise safety.
10. Equipment Marking: The equipment marking contains at least the information on the
product label. See
Product Nameplate
on page 23.
11. If the equipment is likely to come into contact with aggressive substances, it is the
user’s responsibility to take suitable precautions to prevent it from being adversely
affected, and to ensure that the type of protection is not compromised.
• Aggressive substances include, for example, acidic liquids or gases that may
attack metals, or solvents that may affect polymeric materials.
• Suitable precautions include, for example, regular checks as part of routine
inspections, or establishing from the material’s data sheet that it is resistant to
specific chemicals.
SPECIAL CONDITIONS FOR SAFE USE
The ‘X’ suffix to the certificate number relates to the following special condition(s) for
safe use.
• Cable or conduit entries must meet the requirements of European Directive
94/9/EC for Group II, Category 1D, 1/2D, or 2D, as appropriate, and must
maintain the overall IP rating of the enclosure.
• For applications that require the purge feature, the user shall implement a
means to ensure that combustible dust from the hazardous area cannot enter
the purge supply in such a way as to compromise the area classification.
Page 24 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
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