Siemens SITRANS LR25 Instruction manual

Radar Transmitters
Quick Start Manual 01/2012
SITRANS LR250 (Foundation Fieldbus)
SITRANS

7ML19985XN82 SITRANS LR250 (FF) – QUICK START MANUAL Page EN-1
mmmmm
English
SITRANS LR250 (Foundation Fieldbus)
Quick Start Manual
This manual outlines the essential features and functions of the SITRANS LR250 (Foundation
Fieldbus). We strongly advise you to acquire the detailed version of the manual so you can use
your instrument to its fullest potential. The complete manual can be downloaded from the
product page of our web site at: www.siemens.com/LR250. The printed manual is available from
your local Siemens representative.
Questions about the contents of this manual can be directed to:
Siemens AG
Siemens Milltronics Process Instruments
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario, Canada, K9J 7B1
Email: [email protected]
MILLTRONICS® is a registered trademark of Siemens Milltronics Process Instruments Inc.
Technical Support
Support is available 24 hours a day.
To find your local Siemens Automation Office address, phone number and fax number go to:
www.siemens.com/automation/partner:
• Click on the tab Contact, select Service, then click Service again to find your product
group (+Automation Technology > +Sensor Systems >+Process Instrumentation > +Level
Measurement > +Continuous). Select Radar.
• Select the country followed by the City/Region.
• Select Technical Support under Service.
For on-line technical support go to: www.siemens.com/automation/support-request
• Enter the instrument name (SITRANS LR250) or order number, then click on Search, and
select the appropriate product type. Click on Next.
• Enter a keyword describing your issue. Click on Next. Then either browse the relevant
documentation, or click on Next to E-mail a description of your issue to Siemens
Technical Support staff.
Siemens IA/DT Technical Support Center: phone [phone]
Copyright Siemens AG 2011.
All Rights Reserved Disclaimer of Liability
We encourage users to purchase autho-
rized bound manuals, or to view elec-
tronic 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 guar-
antee 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.

Page EN-2 SITRANS LR250 (FF) – QUICK START MANUAL 7ML19985XN82
mmmmm
English
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.1)
FCC Conformity
US Installations only: Federal Communications Commission (FCC) rules
SITRANS LR250
SITRANS LR250 is a 2-wire 25 GHz pulse radar level transmitter for continuous monitoring of
liquids and slurries in storage vessels including high pressure and high temperature, to a range
of 20 m (66 ft). It is ideal for small vessels and low dielectric media.
The instrument consists of an electronic component coupled to a horn antenna and either a
threaded or flange type process connection. A threaded PVDF antenna is also available.
SITRANS LR250 supports Foundation Fieldbus (FF) communication protocol. Signals are
processed using Process Intelligence which has been field-proven in over 1,000,000
applications worldwide (ultrasonic and radar). This instrument can be configured as an FF (H1)
Link Master.
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.
WARNING1: 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.
1) This symbol is used when there is no corresponding caution symbol on the product.
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 the user will
be required to correct the interference at his own expense.
WARNING: SITRANS LR250 is to be used only in the manner outlined in this manual,
otherwise protection provided by the equipment may be impaired.
Note: This product is intended for use in industrial areas. Operation of this equipment in a
residential area may cause interference to several frequency based communications.

7ML19985XN82 SITRANS LR250 (FF) – QUICK START MANUAL Page EN-3
mmmmm
English
Specifications
For a complete listing, see the SITRANS LR250 (FF) Operating Instructions manual. For
Approvals information, please refer to the process device tag.
Ambient/Operating Temperature
Power
• Bus powered 9-32 V DC, per IEC 61158-2 (Foundation Fieldbus)
• Current consumed: 20 mA
Approvals
• General CSAUS/C, CE, FM, NE 21, C-TICK, KC
• Radio FCC, Industry Canada and Europe ETSI EN 302-372
Notes:
• The maximum temperature is dependent on the process connection, antenna materials,
and vessel pressure: see
Wiring Setups for hazardous area installations on page 9. For
more detailed information see Process Pressure/Temperature derating curves in the full
manual.
• Process temperature and pressure capabilities are dependent upon information on the
process connection tag. The reference drawing listed on the tag is available on the
product page of our website at www.siemens.com/LR250, under More Info/Installation
drawings/Level Measurement/Installation Drawings/LR250. Additional information on
process connections is available on the Installation Drawings page under Process
Connection Diagrams.
• Signal amplitude increases with antenna diameter, so use the largest practical size.
• Optional extensions can be installed below the threads.
• See
Maximum Process Temperature Chart on page 24, for more details.
General Purpose:
Intrinsically Safe:
Non-Sparking/Energy Limited:
Non-incendive:
9-32 V DC
Notes:
• The device nameplate lists the approvals that apply to your device.
• Use appropriate conduit seals to maintain IP or NEMA rating.
process temperature at process connection:
standard horn antenna:
- with FKM O-ring: –40 oC to +200 oC (–40 oF to +392 oF)
- with FFKM O-ring: –20 oC to +200 oC (–4 oF to +392 oF)
2" NPT / BSPT / G Threaded PVDF antenna:
−40 to +80 °C (−40 to +176 °F)
ambient temperature
(surrounding enclosure)
–40 °C to 80 °C (–40 °F to 176 °F)
device
nameplate
process
connection
tag

Page EN-4 SITRANS LR250 (FF) – QUICK START MANUAL 7ML19985XN82
mmmmm
English
Approvals (continued)
• Hazardous
Intrinsically Safe 1)
(Europe) ATEX II 1G, Ex ia IIC T4 Ga
ATEX II 1D, Ex tD A20 IP67 T90 °C Da
(International) IECEx SIR 09.0148X, Ex ia IIC T4 Ga
Ex tD A20 IP67 T90 °C Da
(US/Canada) FM/CSA
Class I, Div. 1, Groups A, B, C, D
Class II, Div. 1, Groups E, F, G
Class III T4
(Brazil) INMETRO TUV 11.0309 X, Ex ia IIC T4 Ga
Ex ia IIIC T90 ºC Da IP65/IP67
TUV #: OCP 0004
(China) NEPSI Ex ia IIC T4/ DIP A20 TA, T90 oC IP6X
Non-sparking/Energy Limited 2)
(Europe) ATEX II 3G, Ex nA/nL IIC T4 Gc
(China) NEPSI Ex nA II T4/ Ex nL IIC T4
Non-incendive 3)
(US/Canada) FM/CSA Class I, Div. 2, Groups A, B, C, D T5
• Marine Lloyd’s Register of Shipping
ABS Type Approval
Bureau Veritas
Pressure Application
4)
1) See
Intrinsically Safe wiring1. on page 11
2) See
Non-Sparking/Energy Limited wiring2. on page 12.
3) See
Non-incendive wiring (only for USA/Canada)3. on page 13.
WARNINGS:
• Never attempt to loosen, remove, or disassemble process connection or
instrument housing while vessel contents are under pressure.
• 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.
• Improper installation may result in loss of process pressure.
Notes:
• The process connection tag shall remain with the process pressure boundary assembly1).
In the event the instrument package is replaced, the process connection tag shall be
transferred to the replacement unit.
•SITRANS LR250 units are hydrostatically tested, meeting or exceeding the requirements
of the ASME Boiler and Pressure Vessel Code and the European Pressure Equipment
Directive.
4) The process pressure boundary assembly comprises the components that act as a barrier against
pressure loss from the process vessel: that is, the combination of process connection body and
emitter, but normally excluding the electrical enclosure.

7ML19985XN82 SITRANS LR250 (FF) – QUICK START MANUAL Page EN-5
mmmmm
English
Pressure Equipment Directive, PED, 97/23/EC
Siemens Level Transmitters with flanged, threaded, or sanitary clamp type process mounts
have no pressure-bearing housing of their own, and therefore do not come under the Pressure
Equipment Directive as pressure or safety accessories (see EU Commission Guideline 1/8 and
1/20).
Installation
Nozzle design
• The end of the antenna must protrude a minimum of 10 mm (0.4”) to avoid false echoes
being reflected from the nozzle.
• Minimum recommended nozzle diameter for the threaded PVDF antenna is 51 mm (2").
• An antenna extension (100 mm/ 3.93") is available for any version except the threaded
PVDF antenna.
WARNINGS:
• Installation shall be performed only by qualified personnel and in
accordance with local governing regulations.
• Handle the device using the enclosure, not the antenna or the process
connection tag, to avoid damage.
• Take special care when handling the threaded PVDF antenna. Any damage
to the antenna surface, particularly to the tip, could affect performance.
• Materials of construction are chosen based on their chemical compatibility
(or inertness) for general purposes. For exposure to specific environments,
check with chemical compatibility charts before installing.
Notes:
• For European Union and member countries, installation must be according to ETSI EN
302372.
• Refer to the device nameplate for approval information.
• The serial numbers stamped in each process connection body provide a unique
identification number indicating date of manufacture.
Example: MMDDYY – XXX (where MM = month, DD = day, YY = year, and XXX= sequential
unit produced)
• Further markings (space permitting) indicate flange configuration, size, pressure class,
material, and material heat code.
min. clearance:
10 mm (0.4")
Threaded PVDF Antenna Stainless Steel Horn Antenna
Min. dia. 50 mm (2")
min. clearance:
10 mm (0.4")

Page EN-6 SITRANS LR250 (FF) – QUICK START MANUAL 7ML19985XN82
mmmmm
English
Nozzle location
Avoid central locations on tall, narrow vessels.
Environment
• Provide an environment suitable to the housing
rating and materials of construction.
• Provide a sunshield if the device will be mounted
in direct sunlight.
Beam angle
• Beam angle is the width of the cone
where the energy density is half of the
peak energy density.
• Peak energy density is directly in front
of and in line with the antenna.
• Signal is transmitted outside the beam
angle; therefore false targets may be
detected.
Emission Cone
• Keep emission cone free of interference
from ladders, pipes, I-beams or filling
streams.
Access for programming
• Provide easy access for viewing the display and programming via the handheld
programmer
Mounting instructions
Threaded Versions
1) Before inserting the instrument into its mounting connection, check to ensure the threads
are matching to avoid damaging them.
2) Simply screw the instrument into the process connection, and hand tighten, or use a
wrench. For pressure applications see Warning note above.
Flanged Versions
WARNING: For pressure applications use PTFE tape or other appropriate thread
sealing compound and tighten the process connection beyond hand-tight. The
maximum recommended torque is 40 N-m (30 ft.lbs.)
Note:
• There is no limit to the number of times an instrument can be rotated without damage.
• When mounting, orient the front or back of the instrument towards the closest wall.
• Do not rotate the enclosure after programming and vessel calibration, otherwise an error
may occur, caused by a polarity shift of the transmit pulse.
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.
preferred
undesirable
beam angle:
threaded PVDF
antenna = 19°
1.5" horn = 19°
2" horn = 15°
3" horn = 10°
4" horn = 8°
beam
angle
emission
cone

7ML19985XN82 SITRANS LR250 (FF) – QUICK START MANUAL Page EN-7
mmmmm
English
Wiring
Power
Connecting SITRANS LR2501) 2)
1) Strip the cable jacket for approximately 70 mm (2.75") from the end of the Foundation
Fieldbus cable, and thread the wires through the gland3).
2) Connect the wires to the terminal as shown (SITRANS LR250 FF is not polarity sensitive).
3) Ground the instrument according to local regulations.4)
4) Tighten the gland to form a good seal.
5) Close the lid and secure the locking ring before programming and instrument
configuration.
(continued on next page)
WARNINGS:
The DC input terminals shall be supplied from a source providing electrical
isolation between the input and output, in order to meet the applicable safety
requirements of IEC 61010-1.
All field wiring must have insulation suitable for rated voltages.
WARNINGS:
• Check the device nameplate to verify the approval rating.
• Use appropriate conduit seals to maintain IP or NEMA rating.
• See
Wiring Setups for hazardous area installations on page 9.
Note: For detailed wiring instructions refer to the full LR250 FF Operating Instructions.
1) The device shield connection is internally connected to the external ground lug.
2) May be shipped with the instrument.
3) If cable is routed through conduit, use only approved suitable-size hubs for waterproof applications.
4) For optimum EMC protection, it is recommended that the FF H1 cable shield be connected to ground at
every node.
cable shield
device shield
connection 1)
external
ground lug
plug (IP 68)
optional cable gland2) 3)
(or NPT cable entry3))
Use a 2 mm Allen key to
loosen the lid-lock set
screw.

Page EN-8 SITRANS LR250 (FF) – QUICK START MANUAL 7ML19985XN82
mmmmm
English
Basic Configuration with Foundation Fieldbus (H1)
Notes:
• Foundation Fieldbus (H1) must be terminated at both extreme ends of the cable for it to
work properly.
• Please refer to the
Foundation Fieldbus System Engineering Guidelines (AG-181) Revision
2.0
, available from www.fieldbus.org, for information on installing FF (H1) devices.
controller
Rosemount
3420 HSE/H1
Gateway
configurator
software
LR250 FF LR250 FF LR250 FF
PC/laptop
FF (H1)
controller
HSE/H1
Linking Device
LR250 FF LR250 FF LR250 FF
PC/laptop
FF (H1)
Configuration via
Gateway
Configuration via
Linking Device
FF (HSE)
FF (HSE)
Basic Configuration cont’d on next page.
configurator
software

7ML19985XN82 SITRANS LR250 (FF) – QUICK START MANUAL Page EN-9
mmmmm
English
Wiring Setups for hazardous area installations
There are three wiring options for hazardous area installations:
•
Intrinsically Safe wiring on page 11
•
Non-Sparking/Energy Limited wiring on page 12
•
Non-incendive wiring (only for USA/Canada) on page 13.
In all cases, check the device nameplate and process connection tag to verify the approval
rating.
Configuration with Foundation Fieldbus for hazardous
areas
H1 Interface
LR250 FF LR250 FF LR250 FF
PC/laptop
FF (H1)
Configuration via
PCI/PCMCIA Card
PCI/PCMCIA bus
Basic Configuration cont’d.
configurator
software
Hazardous Area
Non-hazardous Area
controller
EEx ia type
HSE/H1
LR250 FF LR250 FF LR250 FF
PC/laptop
FF (H1)
Configuration via
Gateway
FF (HSE)
configurator
software