Siemens Sitrans LU-180 User manual

Operating Instructions
LU-180 (Sitrans LU-180)
Edition 06/2016
Ultrasonic Transmitters

SITRANS LU180
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Ultrasonic Transmitters
SITRANS LU180
Operating Instructions
06/2016
A5E37100674
-AA
Introduction
1
Description
2
Installing and mounting
3
Connecting
4
Commissioning
5
Operating
6
Troubleshooting
7
Technical data
8
Appendix
A

Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E37100674
Ⓟ
03/2016 Subject to change
Copyright © Siemens AG 2016.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be
used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property
damage.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific task
in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified
personnel are those who, based on their training and experience, are capable of identifying risks and avoiding
potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication may
be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described.
Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this
publication is reviewed regularly and any necessary corrections are included in subsequent editions.

SITRANS LU180
Operating Instructions, 06/2016, A5E37100674-AA 3
Table of contents
1 Introduction................................................................................................................................................ 5
2 Description................................................................................................................................................. 7
3 Installing and mounting.............................................................................................................................. 9
3.1 Environmental...........................................................................................................................9
3.2 Location ....................................................................................................................................9
3.3 Threaded.................................................................................................................................10
3.4 Flange adapter (optional)........................................................................................................11
3.5 4" Sanitary...............................................................................................................................12
3.6 LU180 with FMS200 mounting bracket...................................................................................15
4 Connecting .............................................................................................................................................. 17
4.1 Connecting the LU180............................................................................................................17
4.1.1 Cable entry..............................................................................................................................17
4.1.2 System diagram......................................................................................................................18
4.1.3 Wiring connection ...................................................................................................................18
4.2 Instructions specific to hazardous area installations ..............................................................19
4.3 Nameplates for hazardous area installations .........................................................................20
5 Commissioning........................................................................................................................................ 23
5.1 Start up ...................................................................................................................................23
5.2 Calibration...............................................................................................................................24
5.3 Calibration: reference method ................................................................................................24
5.4 4 mA calibration......................................................................................................................25
5.5 20 mA calibration....................................................................................................................25
5.6 Operation status......................................................................................................................26
6 Operating................................................................................................................................................. 27
6.1 Adjustments............................................................................................................................27
6.2 Calibration, scrolling method ..................................................................................................28
6.3 4 mA calibration......................................................................................................................28
6.4 20 mA calibration....................................................................................................................29
6.5 Blanking..................................................................................................................................29
6.6 Adjusting the blanking value...................................................................................................30
6.7 Speed of response..................................................................................................................30
6.8 Adjusting the speed of response ............................................................................................31

Table of contents
SITRANS LU180
4Operating Instructions, 06/2016, A5E37100674-AA
6.9 Fail-safe ................................................................................................................................. 32
6.10 Adjusting the fail-safe setting................................................................................................. 32
6.11 Fail-safe timer ........................................................................................................................ 33
6.12 Adjusting the fail-safe timer.................................................................................................... 33
6.13 Units....................................................................................................................................... 33
6.14 Adjusting the units.................................................................................................................. 34
7 Troubleshooting....................................................................................................................................... 35
8 Technical data ......................................................................................................................................... 37
8.1 Power..................................................................................................................................... 37
8.2 Performance........................................................................................................................... 37
8.3 Interface................................................................................................................................. 37
8.4 Outputs................................................................................................................................... 38
8.5 Construction........................................................................................................................... 38
8.6 Operating conditions.............................................................................................................. 38
8.7 Approvals............................................................................................................................... 39
A Appendix.................................................................................................................................................. 41
A.1 Measurement interval ............................................................................................................ 41

SITRANS LU180
Operating Instructions, 06/2016, A5E37100674-AA 5
Introduction
1
Note
For industrial use only
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.
Note
Unit repair
All changes and repairs must be done by qualified personnel, and applicable safety
regulations must be followed. Please note the following:
•
The user is responsible for all changes and repairs made to the device.
•
All new components must be provided by Siemens.
•
Restrict repair to faulty components only.
•
Do not re-use faulty components.

Introduction
SITRANS LU180
6Operating Instructions, 06/2016, A5E37100674-AA

SITRANS LU180
Operating Instructions, 06/2016, A5E37100674-AA 7
Description
2
The SITRANS LU180 is an ultrasonic level monitor combining sensor and electronics in a single
package. It is designed to measure liquid levels in open or closed vessels. The process part
(sensor) is PVDF, allowing the SITRANS LU180 to be used in a wide variety of industries,
especially food and chemical.
The sensor houses the ultrasonic transducer and temperature sensing element. The SITRANS
LU180 emits a series of ultrasonic pulses from the transducer. Each pulse is reflected as an
echo from the material and sensed by the transducer. The echo is processed by the SITRANS
LU180 using Siemens' proven ‘Sonic Intelligence’ techniques. Filtering is applied to help
discriminate between the true echo from the material, and false echoes from acoustical and
electrical noises and agitator blades in motion. The time for the pulse to travel to the material
and back is temperature compensated and then converted into distance for the mA output.

Description
SITRANS LU180
8Operating Instructions, 06/2016, A5E37100674-AA

SITRANS LU180
Operating Instructions, 06/2016, A5E37100674-AA 9
Installing and mounting
3
3.1
Environmental
The SITRANS LU180 should be mounted in an area that is within the temperature range
specified, and that is suitable to the housing rating and materials of construction.
It is advisable to keep the device away from high voltage or current runs, contactors and SCR
control drives.
3.2
Location
Locate the SITRANS LU180 so that it
will have a clear sound path that is
perpendicular to the liquid surface.
The SITRANS LU180 sound path should
not intersect the fill path, rough walls,
seams, rungs, etc.
①
Sanitary ferrule
④
Seams
②
Pipe
⑤
Fill
③
Rungs
Note
Mount the SITRANS LU180 so that the face of the sensor is at least 25 cm above the
highest anticipated level.

Installing and mounting
3.3 Threaded
SITRANS LU180
10 Operating Instructions, 06/2016, A5E37100674-AA
3.3
Threaded
①
Electronics
②
Mounting thread
③
Sensor
The SITRANS LU180 is available in three thread types:
1. 2" NPT ((Taper), ANSI/ASME B1.20.1)
2. R 2" ((BSPT), EN 10226)
3. G 2" ((BSPP), EN ISO 228-1
Note
Before inserting the SITRANS LU180 into its mounting hole, ensure that the threads are of
the same type to avoid damaging the device.

Installing and mounting
3.4 Flange adapter (optional)
SITRANS LU180
Operating Instructions, 06/2016, A5E37100674-AA 11
3.4
Flange adapter (optional)
The SITRANS LU180 can be fitted with the optional 75 mm (3") flange adapter for mating to 3"
ANSI, DIN 65PN10 and JIS 10K3B flanges.
①
SITRANS LU180
②
Optional flange adapter (2" NPT - 7ML1830-1BT, 2" BSPT - 7ML1830-1BU)

Installing and mounting
3.5 4" Sanitary
SITRANS LU180
12 Operating Instructions, 06/2016, A5E37100674-AA
3.5
4" Sanitary
Note
•
The sanitary version is suitable for chemical clean-in-place applications to 60 °C (140 °F)
only. Ensure your cleaning chemicals are compatible with PVDF.
①
Electronics
②
Mounting flange
③
Sensor
Mounting the sanitary version
1. Mount the SITRANS LU180 onto the top of the tank’s sanitary ferrule.
2. Secure mating by surrounding the joint with the clamp.
3. Tighten adjusting wing nut.

Installing and mounting
3.5 4" Sanitary
SITRANS LU180
Operating Instructions, 06/2016, A5E37100674-AA 13
①
SITRANS LU180
④
Ferrule
②
Clamp
⑤
Tank
③
Adjusting wing nut

Installing and mounting
3.5 4" Sanitary
SITRANS LU180
14 Operating Instructions, 06/2016, A5E37100674-AA
4" Sanitary ferrule
Note
The inside of sanitary ferrule must be smooth, and free of burrs, seams or ridges.

Installing and mounting
3.6 LU180 with FMS200 mounting bracket
SITRANS LU180
Operating Instructions, 06/2016, A5E37100674-AA 15
3.6
LU180 with FMS200 mounting bracket
①
LU180
②
FMS200 mounting bracket (7ML1830-1BK) with 7ML1830-1DT (Locknut, 2" NPT) or 7ML1830-
1DQ (Locknut, 2" BSPT).

Installing and mounting
3.6 LU180 with FMS200 mounting bracket
SITRANS LU180
16 Operating Instructions, 06/2016, A5E37100674-AA

SITRANS LU180
Operating Instructions, 06/2016, A5E37100674-AA 17
Connecting
4
4.1
Connecting the LU180
4.1.1
Cable entry
1. Loosen lid and remove it.
2. Install cable gland or conduit.
3. Insert wires through gland or conduit and up through cable guide.
4. Connect wiring.
5. Replace lid and tighten it.
* Lid removed for clarity

Connecting
4.1 Connecting the LU180
SITRANS LU180
18 Operating Instructions, 06/2016, A5E37100674-AA
Note
•
To maintain IP and NEMA ratings, tighten the lid between 4 to 4.5 Nm.
•
Ensure the cable gland is screwed in to the enclosure tightly and the cable is within the
specified clamping range (6.5 to 12 mm).
•
User supplied cable glands must meet IP68/NEMA 6 ratings and be installed according to
the manufacturer's instructions.
4.1.2
System diagram
①
SITRANS LU180
②
Loop instrumentation
4.1.3
Wiring connection
①
SITRANS LU180
④
V supply
②
Loop instrumentation
③
R max
Note
Power supply is reverse polarity protected.

Connecting
4.2 Instructions specific to hazardous area installations
SITRANS LU180
Operating Instructions, 06/2016, A5E37100674-AA 19
4.2
Instructions specific to hazardous area installations
Instructions specific to hazardous area installations (in accordance with IEC 60079-0:2011 clause 30)
The following instructions relevant to safe use in a hazardous area apply to equipment covered
by certificate numbers Sira 15ATEX2334X and IECEx SIR 15.0118X.
1. The certification marking is as follows:
Certificate number: IECEx SIR
15.0118X
Sira 15ATEX2334X
Certification code:
Ex ia IIC T4 Ga
Ex ia IIC T4 Ga
Other marking:
nnnn
II 1G
2. The equipment may be used in zones 0, 1 & 2 with flammable gases and vapours with
apparatus groups IIA, IIB & IIC and with temperature classes T4.
3. The equipment is only certified for use in ambient temperatures in the range -40ºC to +60ºC
and should not be used outside this range.
4. Installation shall be carried out in accordance with the applicable code of practice by suitably-
trained personnel.
5. There are no special checking or maintenance conditions other than a periodic check.
6. With regard to explosion safety, it is not necessary to check for correct operation.
7. The equipment contains no user-replaceable parts and is not intended to be repaired by the
user. Repair of the equipment is to be carried out by the manufacturer, or their approved
agents, in accordance with the applicable code of practice.
8. Repair of this equipment shall be carried out in accordance with the applicable code of
practice.
9. If the equipment is likely to come into contact with aggressive substances, e.g. acidic liquids
or gases that may attack metals or solvents that may affect polymeric materials, then it is the
responsibility of the user to take suitable precautions that prevent it from being adversely
affected thus ensuring that the type of protection is not compromised.
10.The certificate number has an ‘X’ suffix which indicates that special conditions of installation
and use apply. Those installing or inspecting this equipment must have access to the
contents of the certificate or these instructions. The conditions listed in the certificate are
reproduced below: