Siemens SITRANS LR 400 User manual

Instruction Manual September 2001
SITRANS LR 400
SITRANS LR 400

© Siemens Milltronics Process Instruments Inc. 2001
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 practicesand standards.
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
Instruments Inc.2001.AllRights ReservedDisclaimer of Liability
This document is available in bound versionand 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.
Contact Technical Publications at the followingaddress:
Technical Publications
Siemens Milltronics Process Instruments Inc.
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario, Canada, K9J 7B1
Email: [e-mail]
For the library of SMPI instruction manuals, visit: www.siemens-milltronics.com

7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT i
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Table of Conetns
Table of Contents
General Information ...........................................................................................................1
The Manual ...............................................................................................................................................1
SITRANS LR 400 ......................................................................................................................................3
Structure ....................................................................................................................................................3
Specifications ......................................................................................................................4
SITRANS LR 400 ......................................................................................................................................4
Dimensions ...............................................................................................................................................8
Installation .........................................................................................................................11
Mounting Location ................................................................................................................................11
Electrical connection ............................................................................................................................13
Start Up ...............................................................................................................................15
Self-test ....................................................................................................................................................15
Multi-display ...........................................................................................................................................15
Local Programming ...............................................................................................................................15
Auto-Setup ..............................................................................................................................................15
Operation ............................................................................................................................16
General information ..............................................................................................................................16
Measuring principle .............................................................................................................................16
Operating the SITRANS LR 400 .........................................................................................................19
Changing a Parameter Value ..............................................................................................................20
Disabling and enabling programming ..............................................................................................22
Operating examples ..............................................................................................................................23
Parameters (HART) ...........................................................................................................25
Required Parameters ............................................................................................................................25
Additional Parameters .........................................................................................................................27
Parameters (Profibus PA) ................................................................................................53
Troubleshooting .................................................................................................................62
Classification of faults ..........................................................................................................................62
Self-test ....................................................................................................................................................62
Symptoms, causes and their remedy ...............................................................................................63
Fault messages ......................................................................................................................................64
Maintenance and repairs ................................................................................................65
Changing the device fuse ....................................................................................................................65
Disconnecting the electronics part from the mechanical part ..................................................66
Cleaning the antenna ...........................................................................................................................66
Certificates .........................................................................................................................67
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ii SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01
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Table of Contents
Glossary ..............................................................................................................................68
Appendix I ..........................................................................................................................69
Alphabetical Parameter List ...............................................................................................................69
Appendix II .........................................................................................................................73
Programming Chart ...............................................................................................................................73
76
Appendix III ........................................................................................................................77
Ambient/Operating Temperature Specification .............................................................................77
Appendix IV ........................................................................................................................78
Process Pressure/Temperature de-Rating ......................................................................................78
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General Information
General Information
The Manual
Refer to this manual for proper installation, operation and maintenance of the SITRANS
LR 400 Radar Level Instrument.
Special attention must be paid to warnings and notices that are highlighted from the rest
of the text by grey boxes.
• These instructions do not claim to cover all details or variations in equipment, not to
provide for every possible contingency that may arise during installation, operation,
or maintenance.
• For further information or to resolve issues not covered in the manual, consult your
Siemens Milltronics representative.
• The contents of the manual shall not become part of or modify any prior or existing
agreement, commitment or relationship. The Sales Contract contains the entire
obligation of Siemens. The warranty contained in the contract between the parties
is the sole warranty of Siemens Milltronics.
Warningmeans that failure to observe the necessary precautions can result in death,
serious injury and/or considerable material damage.
Notemeans important information about the actual product or that part of the
operating manual to which particular attention should be paid.
Note: 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
in which case the user will be required to correct the interference at his own expense.
WARNING: Changes or modifications not expressly approved by Siemens Milltronics
could void the user’s authority to operate the equipment.
IMPORTANT: All specifications are subject to change without notice.
Please ensure that any safety-related information is confirmed with a
qualified Siemens Milltronics representative.

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General Information
Qualified personnel
Qualified personnel are familiar with the installation, commissioning, and operation of
this equipment. In addition the person must be:
• trained and authorized to operate and service equipment/systems in accordance
with established safety procedures relating to electrical circuits, high pressures and
aggressive media.
• trained in the proper care and use of protective equipment in accordance with
established safety practices.
• trained in rendering first aid.
Warning:
• Installation shall only be performed by qualified personnel and in
accordance with local governing regulations
• The SITRANS LR 400 is to be used only in the manner outlined in this manual
or protection provided by equipment may be impaired.

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General Information
SITRANS LR 400
The SITRANS LR 400 Radar Level Instrument is designed for level measuring of liquids and
solids in storage vessels. SITRANS LR 400 operates reliably with its high microwave
frequency even with poorly reflecting measuring media. The narrow antenna beam results
in a sharp radiation cone, therefore SITRANS LR 400 is quite insensitive to vessel
interferences.
Structure
The terminals for the power cable and the signal cable are behind the connection cover
(9) on the left hand side of the housing (1). The signal cable must be fed in from the right
through the cable glands (2).
The device can be separated into electronic and mechanical sections at the threaded
ring (5).
An optional temperature extension is positioned between the threaded ring (5) and the
flange (6). Refer to Dimension diagram on page 8.
The end of the antenna (7) must reach inside the vessel through the vessel nozzle (see
page 12).
Return the orientation of the housing to the same position with reference to the flange
after any servicing to ensure similar performance.
12
3
4
5
6
7
8
9Electronics section
Mechanical section
1 Housing
2 Cable gland
3 Electronics cover
4 Operating and
monitoring module
5 Threaded ring
6 Process Flange
7 Antenna
8 Intermediate flange
9 Connection cover

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Specifications
Specifications
SITRANS LR 400
Power
• Power Supply 120 to 230 Vac, ±15%, 50/60 Hz, 6W (12VA)
or
24 Vdc, +25/-20%, 6W
Power failure: bridge of at least 1 mains period (> 20 ms)
Fuse
• Fuse (both ac and dc versions)
SI1 Fast acting ceramic, 4 x 20 mm, 1A, 250 Vac
SI2 Slow-Blow, 4 x 20 mm, 0.63 A, 250 Vac
Interface
• Analog output (Not applicable to Profibus PA option)
Signal range 4 to 20 mA
Upper Limit 20 to 22.5 mA adjustable
Fail signal 3.6 mA; 22 mA; 24 mA or last value
Load Max. 600 Ω, for HART communication min. 230 Ω
• Digital Output
Function Configurable as a device status or limit value
(level, volume)
Signal type Relay, either NCC or NOC function
max. DC 50 V, max. 200 mA, rating max. 5 W.
Self-resetting fuse, Ri= 9 Ω
• Electrical Isolation Outputs electrically isolated from the power supply and
from each other
• Display LCD, two lines of 16 characters each,
configurable for the following displays:
level, volume, amplitude, digital output,
temperature, validity, signal-to-noise ratio
Multi–display: 2 freely selectable measured values are
displayed simultaneously
•Operation4 optical control elements, finger activated, menu-guided
Note: Siemens Milltronics makes every attempt to ensure the accuracy of these
specifications, but reserves the right to change them at any time. Please ensure these
are the most recent specifications. Contact your representative, or check our website
at www. milltronics.com for the most up-to-date information.
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Specifications
Mechanical
• Nominal sizes DIN DN 80 DN 100 DN 150
ANSI 3" 4" 6"
JIS 80 mm 100 mm 150 mm
• Pressure classes
DIN PN16 PN40
ANSI 150 lb 300lb
JIS 10K
Flange
• Process Connection Flange DIN 2527, ANSI B16.5, or JIS B2238 equivalent bolt
pattern
• Materials of the wetted Stainless steel, material–no. 1.4571 and 1.4581, PTFE
parts –in contact with (or glass/PTFE, Zone 0 and Zone 20 devices)
the process
Enclosure
• construction Die-cast aluminum, painted
• conduit M20 (cable diameter 6 to 9.5 mm[0.24 to 0.37"])
or ½”-14 NPT
• ingress protection Type 4X/NEMA 4X, Type 6/NEMA 6, IP 671
Weight
• Weight of unit and flange
1.Use only approved, suitable sized hubs for watertight applications.
Flange Pressure Class Size Weight
DIN 2527 PN 16 DN 80 11.9 kg (26.1 lbs)
DN 100 13.2 kg (28.9 lbs)
DN 150 19.2 kg (42.1 lbs)
PN 40 DN 80 12.9 kg (28.4 lbs)
DN 100 15.5 kg (34.1 lbs)
DN 150 24.1 kg (43.1 lbs)
ANSI B 16.5 150 lb 3" 12.2 kg (26.8 lbs)
4" 14.8 kg (32.5 lbs)
6" 20.1 kg (44.2 lbs)
300 lb 3" 14.3 kg (31.5 lbs)
4" 20.2 kg (44.4 lbs)
6" 31.8 kg (69.9 lbs)
JIS B2238 10K 80 mm 11.9 kg (26.1 lbs)
100 mm 13.2 kg (28.9 lbs)
150 mm 19.2 kg (42.1 lbs)
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Specifications
Environmental
location: indoor/outdoor
altitude: 2000 m max
ambient temperature: -40 to 65°C (-40 to 149°F)
relative humidity: suitable for outdoor (Type / Nema 4X, 6/ IP67)
installation category II
pollution degree 4
• *Process Temperature -40 to 140°C (-40 to 284°F),optional -40 to 240°C
(-40 to 482°F)
• Electromagnetic compatibility
Spurious emission according to EN 50 081
Interference strength according to EN 50 082 and NAMUR
• *Perm. ambient -40 to 65°C (-40 to 149°F) (non-hazardous version)
temperature -20 to 65°C (-4 to 149°F) (hazardous version)
LCD: -10 to 55 °C (14 to 131°F)
Observe the temperature classes in hazardous areas!
• Perm. storage -30 to 80°C (-22 to 176°F),
temperature
Approvals (verify against device nameplate)
• Explosion Protection Certificate No. PTB 00 ATEX 1024
** Refer to device II 1/2G EEx d IIC T6II 2G EEx d IIC T6
nameplate II 1/2G EEx dem IIC T6II 2G EEx dem IIC T6
II 1/2G EEx dem [ib] IIC T6II 2G EEx dem [ib] IIC T6
II 1/2G EEx dem [ia] IIC T6II 2G EEx dem [ia] IIC T6
Certificate No. DMT 01 ATEX E 038
II 1/2 D IP 65 (dust zone 20, zone 21 approval)
• General FM, CSA
approval pending
• Radio FCC, Industry Canada, European Radio
approval pending
Comunication
• Communication:HART
Load 230 to 600 Ω, 230 to 500 Ω when connecting a coupling
module
Line two-wire shielded: ≤3 km
multi-wire shielded: ≤1.5 km
Protocol HART, Version 5.1
*Note: Refer to Process/Ambient de-rating curves in Appendix III.
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Specifications
Communication: Profibus PA
Protocol Layer 1 and 2 Profibus PA,
technology: IEC 61158-2, slave-functionality
Device Class B
Device Profile 3.0
• PC/Laptop requirements IBM-compatible
RAM ≥64 Mbytes
Hard disk ≥100 Mbytes
RS 232-C interface
VGA graphic card (≥640 x 480)
• Software for PC/Laptop Windows 95/98 or NT 4.0
SIMATIC PDM
Performance
Measured value error (under reference conditions)
• Measuring error ≤±15 mm at 0.26 to 2 m distance
≤±5 mm at 2 to 10 m distance
≤±15 mm at 10 to 45 m distance
(see diagram below)
• Dead zone 0-26 cm from bottom edge of flange
• Additional contribution of ≤0.1 % of the measured value
Analog Output ≤0.05 % of full scale
• Additional Contribution of ≤0.05 % per 10 % deviation of UN
the Supply Voltage
• Influence of pressure ≤0.3 % to 10 bar without pressure correction
(air, 20°C) ≤2 % at 10 to 64 bar without pressure correction
• Long-term stability ≤±1 mm/year
• Repetitive accuracy ≤±1 mm at 0 to 45 m, damping ≥1 s
• Reference conditions
Medium Triple reflector on the main axis of the antenna main lobe
Ambient temperature 25 ± 5°C (77 ± 9°F)
Ambient pressure 1050 mbar ± 10 %
Absolute Measuring Error
5
10
15
20
Absolute measuring error [mm]
10 20 30 40
istance from flange [m]
452
-20
-15
-10
-5
0
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Specifications
Dimensions
Flange acc. to DIN 2527 / ANSI B
16.5 / JIS B 2238 bolt hole pattern
optional
temperature
extension
409mm
(16.1")
281mm
(11.1")
191 mm
(7.5") or
238 mm
(9.4")
72 mm (2.8") or
98 mm (3.9")
153mm
(6.0")
62 mm
(2.4")
73 mm
(2.9")
84 mm
(3.3")
204mm
(8.0")
Customer to provide adequate bolting and gasket to
retain vessel pressure and provide sufficient seating.
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Specifications
DIN / JIS Flat Face Flange Diagram
Flange according to DIN 2527 (see Flange Diagram on page 9)
Flange according to JIS B 2238
Pipe
Size Flange Size Flange O.D. Thickness (s) BoltHole Circle Ø BoltHole ØNumberof Bolts
80 mm PN 16 200 mm 20.0 mm 160 mm 18.0 mm 8
100 mm PN16 220 mm 20.0 mm 180 mm 18.0 mm 8
150 mm PN 16 285 mm 22.0 mm 240 mm 22.0 mm 8
80 mm PN 40 200 mm 24.0 mm 160 mm 18.0 mm 8
100 mm PN 40 230 mm 24.0 mm 190 mm 22.0 mm 8
150 mm PN 40 300 mm 28.0 mm 250 mm 26.0 mm 8
Pipe
Size Flange Size Flange O.D. Thickness (s) BoltHole Circle Ø Bolt Hole ØNumberof Bolts
80 mm 10 K 185 mm 20.0 mm 150 mm 19.0 mm 8
100 mm 10 K 210 mm 22.0 mm 175 mm 19.0 mm 8
150 mm 10 k 280 mm 24.0 mm 240 mm 23.0 mm 8
Bolt Hole Ø
Thickness (s)
Flange O.D.
Bolt Hole Circle Ø
horn mounting holes
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Specifications
ANSI Raised Face Flange Diagram
Flange according to ANSI B 16.5 (see Flange Diagram on page 9)
Pipe
Size Flange Size Flange O.D. Thickness (s) Face O.D. Bolt Hole Circle Ø BoltHole ØNumberof Bolts
3" 150 # 7.50" 0.941" 5.0" 6.00" 0.74" 4
4" 150 # 9.00" 0.941" 6.19" 7.50" 075" 8
6" 150 # 11.00" 1.00" 8.5" 6.62" 0.88" 8
3" 300 # 8.25" 1.12" 5.0" 6.62 0.88" 8
4" 300 # 10.00" 1.25" 6.19" 7.88" 0.88" 8
6" 300 # 12.51" 1.44" 8.5" 10.62" 0.88" 12
Thickness (s)
Raised Face thickness
0.063" (mm)
Bolt Hole Ø
horn mounting holes
Flange O.D.
Bolt Hole Circle Ø
Face O.D.
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Installation
Installation
Mounting Location
• Do not mount in direct sunlight without the use of a sun shield. Refer to Appendix III
(Ambient/Operating Temperature Specfication) on page 77.
Note:
• The SITRANS LR 400 is rated for Type 4X/NEMA 4X, Type 6/NEMA 6, IP 67.
Follow all installation and operating instructions to meet the requirements
of this type of protection. Use only approved, suitable sized hubs for
watertight applications.
• Observe all maximum permissible ambient and process temperatures.
Refer to Appendix III (Ambient/Operating Temperature Specification).
• Provide a warning sign and/or touch guard if the surface of the measuring
instrument can get hotter than 70°C in use.
Warning: For vessels with conical or parbolic tops, avoid mounting the
unit at the center. The concavity of the top can focus echoes into the centre,
giving false readings.
Mount the unit more than 1 m away from the vessel walls, pipes and other
assemblies as well as the filling stream because all these influences will become
noticeable as reflective interference. Align the antenna so that the radar cone hits
the surface of the measuring medium as vertically as possible
Flat Coni cal
P a ra b o lic
Conical
Parabolic
Flat
is preferred
location
is acceptable
location
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Installation
Correct Installation in Mounting Nozzle
The bottom edge of the antenna must reach inside the vessel to avoid reflective
interference at the wall of the nozzle. Above flange size DN 150/6 inch, the antenna may
end in the nozzle unless the radiation cone (the extension of the antenna’s angle) touches
the nozzle wall.
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Installation
Electrical connection
AC version:
• The equipment must be protected by a 15A fuse or circuit breaker 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.
All field wiring must have insulation suitable for at least 250 V.
DC version:
• DC input terminals shall be supplied from an SELV source in accordance with IEC
1010-1 Annex H.
1264 5 378
L
1
L
2
N
Rated temperature of
connection cables must
exceed maximum ambient
temperature by at least 15 K
PROFI-
BUS PA
Hart Wiring Profibus Wiring
1264 5 378
L
1
L
2
N
mA
Rated temperature of
connection cables must
exceed maximum ambient
temperature by at least 15 K
earth terminal
earth
terminal
cable clamp cable clamp
1264 5 378
mA 19-30 V
Rated temperature of
connection cables must
exceed maximum ambient
temperature by at least 15 K
12645378
PROFI-
BUS PA
19-30 V
Rated temperature of
connection cables must
exceed maximum ambient
temperature by at least 15 K
Hart Wiring Profibus Wiring
earth terminal earth
terminal
cable clamp cable clamp
Note (AC and DC versions):
• 4-20 mA, Profibus PA, DC input circuits, 14 - 20 AWG, shielded copper wire
• AC input circuit, min 14 AWG copper wire
• Recommended torque on terminal clamping screws, 0.5 - 0.6 Nm
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Installation
Make the electrical connections as follows:
1. Release the cover lock on the connection box with a 3 mm Allen key.
2. Unscrew the cover from the connection box.
3. Push the power cable and signal cable through the cable gland on the right of the
unit., up to the terminal strip. Lay the cable in a bend before the cable gland so that
moisture cannot enter the connection box.
4. Connect the earth conductor of the power supply to the earth terminal in the
connection box. Choose a length of cable so that the earth conductor is
disconnected last when you pull the cable.
5. In devices with ignition protection types II 1/2G EEx dem [ia] IIC T6 and II 1/2G EEx
dem [ib] IIC T6 or II 2G EEx dem [ia] IIC T6 and II 2G EEx dem [ib] IIC T6, mount the
cover for the power supply terminals.
6. Tighten the cable screw gland and check the strain relief (pull and turn).
7. In devices with ignition protection type II 1/2G EEx D IIC T6 or II 2G EEx d IIC T6,
replace unused screw-type cable glands with a certified dummy plug.
8. Screw the cover onto the housing and tighten it without using a tool. The sealing
ring must be clean and undamaged.
9. Mount the cover lock of the connection box cover.
10. Connect the earth terminal located between the screw-type cable glands to a
ground connection at your vessel by using a cable of a cross-section at least
2.5 mm2wide.
For error-free communication via the HART protocol, a load of at least 230 Ωmust be
available in the signal circuit.
Warning: To avoid short-circuits, do not connect a load resistance with
bare wires in the connection box.
Thehousingcovermaynot beunscrewedin ahazardousareawhen the
device is under voltage (power supply, digital outputs on external
supply).
In devices with ignition protection types II 1/2G EEx dem [ia] IIC T6 and
II 1/2G EEx dem [ib] IIC T6 II 2G EEx dem [ia] IIC T6 and
II 2G EEx dem [ib] IIC T6, only the cover of the connection box may be
unscrewed for test purposes. The cover on the power supply terminals
may not be removed!
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Start Up
Start Up
Self-test
The device performs a self-test after switching on the power supply. It is ready for
operation and programming when the LCD displays the multi-display and the control
elements can be operated.
Multi-display
The multi-display shows on the LCD after a successful self-test with the output of the
level in the first line and the signal-to-noise ratio in the second line (factory setting):
Local Programming
When the mult-display shows on the LCD, you are ready to begin local programming
using the optical control elements. To access the parameter settings, touch the
element once. "Main Menu" is displayed in the first line of the LCD. Then program the unit
beginning with the Auto-Setup parameters.
Auto-Setup
After switching on the SITRANS LR 400, and after a successful self test, set the Auto-
Setup parameters to make the system operational.: (see page 25).
• The language of the local user interface (English or Deutsch)
• The unit of length of the measured level
• The nozzle height in the selected unit of length
•Thevessel height in the selected unit of length)
• The LRV as a distance from the bottom of the vessel
• The URV as a distance from the bottom of the vessel
• The damping of the measured level in s.
• The application type
• The bus-address by Profibus PA communication (on Profibus models)
Enter the necessary values as described in "Parmeters" on page 25.
If the multi-display does not appear or displays incorrect measured values after Auto-
Setup, proceed as described in “Troubleshooting” on page 62.
Refer to the Parameter section that begins on page 25 for a list of available parameters.
Note: Frequent switching off and on of the devices causes aging of the electronics
(see Parameter 3.1).
+1 2 30 0 m
bd03+
.
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Operation
Operation
General information
You can operate the SITRANS LR 400 with:
• Local operating and monitoring module
• HART-Communicator or Profibus PA
• PC/Laptop and SIMATIC PDM software (recommended)
Measuring principle
The SITRANS LR 400 operates according to the FMCW (Frequency Modulated Continuous
Wave) method. Its antenna sends microwaves to the surface of the measuring medium,
the frequency of which is modulated continuously (see “Determining the Differential
Frequency on page 17). A receiver registers the reflection at the surface of the measuring
medium and links it with the simultaneously radiated signal.
The propagation speed of microwaves in gases corresponds to the speed of light. The
distance
d is therefore proportional to the propagation time t :
d= distance, t = measured time, c = speed of light
Note: The device can be operated and programmed most comfortably with the
SIMATIC PDM software. This software gives you the added possibility of saving and
archiving your application-specific parameters and copying them back into the device
if necessary.
It is best to perform the operations described in the following sections directly on the
device to familiarize yourself with the operation.
d
dct⋅
2
--------=
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