Siemens Sitrans LR250 Instruction manual

Quick Start Manual April 2007
sitrans
English
Cesky
Dansk
Deutsch
Español
Français
Italiano
Nederlands
Português
Suomi
Svenska
LR250 (HART)

SITRANS LR250
Made in Canada
Siemens Milltronics Process Instruments Inc., Peterborough
7ML1234-56789-0ABC-D
Encl.: NEMA / TYPE 4X, 6, IP67, IP68
Amb.Temp.: – 40 °C to 80 °C
Power Rating: 24V Max., 4 - 20mA
Nom., 30 V
Serial No: GYZ / S1034567
IECEx SIR 05.0031X
Ex ia IIC T4
Ex tD A20 IP67 T90°C
1 G EEx ia IIC T4
1 D EEx tD A20 IP67 T90°C
SIRA 06ATEX2358X
II
II
0518
HART
Ui=30V
Ii = 120 mA
Pi = 0.8 W
Ci=15nF
Li = 0.1 mH
SITRANS LR250
7ML1234-56789-0ABC-D
Serial No: GYZ / S1034567
Encl.: NEMA / TYPE 4X, 6, IP67, IP68
Amb.Temp.: – 40 °C to 80 °C
Power Rating: 24V Max., 4 - 20mA
Nom., 30 V
Made in Canada
Siemens Milltronics Process Instruments Inc., Peterborough
Exia per drawing: 23650653
Class I, Div 1, Gr. A, B, C, D;
Class III
Class II, Div 1, Gr. G;
Pmax = 0.8 W
Ci=15nF Temp.Code:T4
Vmax =30V
Li= 0.1 mH
Imax = 120 mA
IC: 267P-LR250
FCC ID: NJA-LR250
N117
159134
HART
WARNING:PossibleStaticHazard,DoNot RubOrCleanOnSite
SITRANS LR250
7ML1234-56789-0ABC-D
Serial No: GYZ / S1034567
Encl.: NEMA / TYPE 4X, 6, IP67, IP68
Amb.Temp.: – 40 °C to 80 °C
Power Rating: 24V Max., 4 - 20mA
Nom., 30 V
Made in Canada
Siemens Milltronics Process Instruments Inc., Peterborough
Class I, Div. 2,
Gr.A,B,C,D;
Temp. Code: T5
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions
1)This device may not cause harmful interference and
2)This device must accept any interference received,
including interference that may cause undesired operation
IC: 267P-LR250
FCC ID: NJA-LR250
HART
N117
159134

7ML19985QX81 SITRANS LR250 (HART) – QUICK START MANUAL Page EN-1
mmmmm
English
SITRANS LR250 (HART) Quick Start Manual
This manual outlines the essential features and functions of the SITRANS LR250 (HART). We
strongly advise you to acquire the detailed version of the manual so you can use your device to
its fullest potential. The complete manual can be downloaded from the SITRANS LR250
product page of our web site at: www.siemens.com/LR250. The printed manual is available
from your local Siemens Milltronics representative.
Questions about the contents of this manual can be directed to:
Siemens Milltronics Process Instruments Inc.
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario, Canada, K9J 7B1
Email: tec[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 Contacts by Product then find your product group (+Process Automation
> +Process Instrumentation > +Level Measuring Instruments).
• Select the team Technical Support. Click on Next.
• Click on a continent, then a country, followed by a city. Click on Next.
For on-line technical support go to: www.siemens.com/automation/support-request
• Enter the device 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. Then either browse the relevant documentation,
or click on Next to email a description of your issue to Siemens Technical Support staff.
Siemens A&D Technical Support Center: phone [phone]
fax [phone]+
Copyright Siemens Milltronics
Process Instruments Inc. 2007.
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 (HART) – QUICK START MANUAL 7ML19985QX81
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 (66ft). It is ideal for small vessels and low dielectric media.
The device consists of an electronic component coupled to a horn antenna and either a
threaded or flange type process connection.
SITRANS LR250 supports HART communication protocol, and SIMATIC PDM software. Signals
are processed using Process Intelligence.
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.

7ML19985QX81 SITRANS LR250 (HART) – QUICK START MANUAL Page EN-3
mmmmm
English
Specifications
For a complete listing, see the SITRANS LR250 (HART) Instruction Manual. For Approvals
information, please refer to the device nameplate and the process device tag.
Ambient/Operating Temperature
Power
• Maximum 30 V DC • 4 to 20 mA
Approvals
• General CSAUS/C, FM, CE
• Radio Europe ETSI EN302-372, FCC, Industry Canada
• Hazardous Intrinsically Safe:
(Europe) ATEX II 1G, EEx ia IIC T4
ATEX II 1D, EEx tD A20 IP67 T90 °C
(International) IECEx SIR 05.0031X, Ex ia IIC T4,
EX tD A20 IP67 T90 °C
(US/Canada) FM/CSA: (barrier required)1
Class I, Div. 1, Groups A, B, C, D
Class II, Div. 1, Groups E, F, G
Class III T4
(see next page for Non-Incendive Class I, Div. 2 approval)
Notes:
• Process temperature and pressure capabilities are dependent upon information on the
process device tag. The reference drawing listed on the tag can be downloaded from the
Siemens website at: www.siemens.com/LR250.
• See
Maximum Process Temperature Chart on page 20, for more details.
Nominal 24 V DC with max. 550 Ohm loop resistance. (Check the device
nameplate for the characteristics of the device, and confirm the loop load.)
1. See Appendix A for
FM/CSA Intrinsically Safe connection drawing (23650653) (North America only) on
page A-1.
Note: Use appropriate conduit seals to maintain IP or NEMA rating.
process temperature (at process
connection, with FKM O-ring)
–40 oC to +150 oC (–40 oF to +302 oF)
ambient temperature
(surrounding enclosure)
–40 °C to 80 °C (–40 °F to 176 °F)
device nameplate
process device
tag

Page EN-4 SITRANS LR250 (HART) – QUICK START MANUAL 7ML19985QX81
mmmmm
English
Approvals (continued)
• Hazardous Non-incendive:
(US/Canada) FM/CSA1Class I, Div. 2,
Groups A, B, C, D T5
Pressure Application
2
Installation
1. See Appendix A for
FM/CSA (Non-incendive) Class 1, Div 2 connection drawing (23650673)(North
America only)
on page A-2.
Note: Use appropriate conduit seals to maintain IP or NEMA rating.
WARNINGS:
• This product is designated as a Pressure Accessory per Directive 97 / 23 / EC, and
is not intended for use as a safety device.
• Do not attempt to loosen, remove, or disassemble process connection or
instrument housing while vessel contents are under pressure.
• Improper installation may result in loss of process pressure.
2. 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.
WARNINGS:
• Installation shall only be performed by qualified personnel and in
accordance with local governing regulations.
• 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.
• The Process Device Tag shall remain with the process pressure boundary assembly2. In
the event the device package is replaced, the Process Device 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.

7ML19985QX81 SITRANS LR250 (HART) – QUICK START MANUAL Page EN-5
mmmmm
English
Installation guidelines
• Provide easy access for viewing the display and programming via the hand programmer.
• Provide an environment suitable to the housing rating and materials of construction.
• Provide a sunshield if the device will be mounted in direct sunlight.
Nozzle design
• The end of the horn must protrude a minimum of
10 mm (0.4”) to avoid false echoes being reflected
from the nozzle.
• An antenna extension: (100 mm / 3.93") is
available.
Nozzle location
• Keep emission cone free of
interference from ladders, pipes,
I-beams or filling streams.
• Make allowance for the emission
code spreading, to avoid
interference with vessel walls or
obstructions. (Beam angle
depends on horn size.)
• Avoid central locations on tall,
narrow vessels, which can
generate false echoes
Note: Beam angle depends on horn
size.
min. clearance:
10 mm (0.4")
beam angle:
1.5" horn = 19°
2" horn = 15°
3" horn = 10°
4" horn = 8°
19°
emission
cone
preferred
undesirable

Page EN-6 SITRANS LR250 (HART) – QUICK START MANUAL 7ML19985QX81
mmmmm
English
Mounting instructions
Threaded Version
1. Before inserting the device into its mounting connection, check to ensure the threads are
matching to avoid damaging them.
2. Simply screw the device into the process connection, and hand tighten, or use a wrench.
A torque of 40 N m (30 ft.lbs) is recommended.
Flanged Version
Wiring
Power
Connecting SITRANS LR250
WARNING: For pressure applications, it will be necessary to use PTFE tape or other
appropriate thread sealing compound, and to tighten the process connection
beyond hand-tight.
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.
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 and process device tag, to verify the approval rating.
• Use appropriate conduit seals to maintain IP or NEMA rating.
•Read
Instructions specific to hazardous area installations on page 10.
Notes:
• For detailed wiring instructions, please refer to the full Instruction Manual.
• Use twisted pair cable: AWG 22 to 14 (0.34 mm2to 2.5 mm2).
• Separate cables and conduits may be required to conform to standard instrumentation
wiring practices, or electrical codes.

7ML19985QX81 SITRANS LR250 (HART) – QUICK START MANUAL Page EN-7
mmmmm
English
2. Strip the cable jacket for approximately 70 mm (2.75") from the end of the cable, and
thread the wires through the gland.
3. Connect the wires to the terminal as shown: the polarity is identified on the terminal
block.
4. Ground the device according to local regulations.
5. Tighten the gland to form a good seal.
Connecting HART
Typical PLC/mA configuration with HART
Wiring setups for hazardous area installations
There are two wiring options for hazardous area installations. In all cases, check the device
nameplate and process device tag to verify the approval rating.
Reference drawings are available from the product page of our website at:
www.siemens.com/LR250, or in Appendix A, on the pages noted below.
Reference Drawing Page
No.
FM/CSA Intrinsically Safe connection drawing (23650653) A- 1
FM/CSA (Non-incendive) Class 1, Div 2 connection drawing (23650673) A- 2
2 mm lid-lock
set screw.
1. Use a 2 mm Allen key to loosen the lid-lock set
screw. Then using a screwdriver for leverage if
necessary, unscrew the cover.
cable shield
(if used)
active PLC
HART modem
SITRANS
LR250
power
supply
Notes:
• Depending on the system
design, the power supply
may be separate from the
PLC, or integral to it.
• Loop resistance (total of
cable resistance plus 250
Ohm [resistor]) must be
less than 550 Ohm for the
device to function
properly.
R= 250 Ω
HART
communicator

Page EN-8 SITRANS LR250 (HART) – QUICK START MANUAL 7ML19985QX81
mmmmm
English
1. Intrinsically Safe wiring method (barrier required)
• For power demands see Loop Voltage versus Loop Resistance on page 21.
• For wiring requirements:
Europe/International: Follow local regulations.
US/Canada: Download
FM/CSA Intrinsically Safe connection drawing
(23650653) from the product page of our website at:
www.siemens.com/LR250 or see Appendix A: page A-1.
• Use appropriate conduit seals to maintain IP or NEMA rating.
• Recommended Intrinsically Safe barriers are listed under
Passive Shunt Diode Barriers
on page 8 and
Active barriers (repeating barriers) on page 9.
• Refer to
Instructions specific to hazardous area installations on page 10.
Passive Shunt Diode Barriers
Approval Rating Valid for:
ATEX II 1 G, EEx ia IIC T4
ATEX II 1 D, EEx tD A20 IP67 T90 °C Europe
IECEx SIR 05.0031X, Ex ia IIC T4, Ex tD A20 IP67 T90 °C International
FM/CSA:
Class I, Div. 1, Groups A, B, C, D
Class II, Div. 1, Groups E, F, G
Class III
US/Canada
Note: Selecting a suitable PLC input module, power supply, or barrier requires knowledge
about Intrinsic Safety and the application. It is the responsibility of the installer to ensure that
the intrinsically safe installation complies with both the apparatus approval requirements
and the relevant national code of practice.
Note: A well regulated supply voltage is required.
Manufacturer Part Number
MTL 787SP+ (Dual Channel)
MTL 7787P+ (Dual Channel)
SITRANS LR250
Made in Canada
Siemens Milltronics Process Instruments Inc., Peterborough
7ML1234-56789-0ABC-D
Encl.: NEMA / TYPE 4X, 6, IP67, IP68
Amb.Temp.:–40°Cto80°C
Power Rating: 24V Max., 4 - 20mA
Nom., 30 V
Serial No: GYZ / S1034567
IECEx SIR 05.0031X
Ex ia IIC T4
Ex tD A20 IP67 T90°C
1 G EEx ia IIC T4
1 D EEx tD A20 IP67 T90°C
SIRA 06ATEX2358X
II
II
0518
HART
Ui=30V
Ii = 120 mA
Pi = 0.8 W
Ci=15nF
Li = 0.1 mH
SITRANS LR250
7ML1234-56789-0ABC-D
Serial No: GYZ / S1034567
Encl.: NEMA / TYPE 4X, 6, IP67, IP68
Amb.Temp.: – 40 °C to 80 °C
Power Rating: 24V Max., 4 - 20mA
Nom., 30 V
Made in Canada
Siemens Milltronics Process Instruments Inc., Peterborough
Exia per drawing: 23650653
Class I, Div 1, Gr. A, B, C, D;
Class III
Class II, Div 1, Gr. G;
Pmax = 0.8 W
Ci=15nF Temp.Code:T4
Vmax =30V
Li= 0.1 mH
Imax = 120 mA
IC: 267P-LR250
FCC ID: NJA-LR250
N117
159134
HART
WARNING:PossibleStaticHazard,DoNot RubOrCleanOnSite