Siemens SITRANS L Series User manual

SITRANS L
Point Level Transmitters
SITRANS LVS300
Operating Instructions
7ML5736 (SITRANS LVS300 Compact)
7ML5737 (SITRANS LVS300 Pipe extension)
7ML5738 (SITRANS LVS300 Customer supplied pipe
extension)
05/2019
A5E44908583-AB
Introduction
1
Installing/mounting
2
Connecting
3
Operating
4
Service and maintenance
5
Technical data
6
Dimension drawings
7
Certificates and support
A

Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E44908583
Ⓟ 07/2019 Subject to change
Copyright © Siemens AG 2019.
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 LVS300
Operating Instructions, 05/2019, A5E44908583-AB 3
Table of contents
1 Introduction ................................................................................................................................................ 5
1.1 Applications ............................................................................................................................... 5
1.2 Function .................................................................................................................................... 5
2 Installing/mounting ..................................................................................................................................... 7
2.1 General safety instructions ....................................................................................................... 7
2.2 Additional safety instructions for hazardous locations .............................................................. 9
2.3 Mounting instructions .............................................................................................................. 10
2.4 Zone classification .................................................................................................................. 12
2.5 General notes ......................................................................................................................... 12
2.6 Permitted zones for mounting in partition wall ........................................................................ 13
2.7 Max. surface temperature and temperature class .................................................................. 13
2.8 Manufacturing of the extension tube ....................................................................................... 14
2.9 Assembly of the unit ................................................................................................................ 17
3 Connecting .............................................................................................................................................. 23
3.1 General safety instructions ..................................................................................................... 23
3.2 Additional safety instructions for hazardous locations ............................................................ 25
3.3 Connection .............................................................................................................................. 27
3.4 Universal voltage .................................................................................................................... 27
3.5 3-wire ...................................................................................................................................... 28
4 Operating ................................................................................................................................................. 29
4.1 Signal output ........................................................................................................................... 29
4.2 Sensitivity setting .................................................................................................................... 30
5 Service and maintenance ........................................................................................................................ 33
5.1 Maintenance notes.................................................................................................................. 33
5.2 Change of the electronic board ............................................................................................... 34
5.3 Disposal notes ........................................................................................................................ 35
6 Technical data ......................................................................................................................................... 37
6.1 Electrical data ......................................................................................................................... 37
6.2 Electronics .............................................................................................................................. 37
6.3 Mechanical data ...................................................................................................................... 38
6.4 Operating conditions ............................................................................................................... 39

Table of contents
SITRANS LVS300
4 Operating Instructions, 05/2019, A5E44908583-AB
6.5 Transport and storage ............................................................................................................ 40
6.6 Approvals ............................................................................................................................... 40
6.7 Options ................................................................................................................................... 41
7 Dimension drawings ................................................................................................................................ 43
7.1 Head dimension ..................................................................................................................... 43
7.2 Compact version .................................................................................................................... 43
7.3 Pipe extension........................................................................................................................ 44
7.4 Pipe extension - customer mounted ...................................................................................... 45
A Certificates and support ........................................................................................................................... 47
A.1 Technical support ................................................................................................................... 47
A.2 Certificates ............................................................................................................................. 48
Index ........................................................................................................................................................ 49

SITRANS LVS300
Operating Instructions, 05/2019, A5E44908583-AB 5
Introduction 1
1.1 Applications
The device is used for level monitoring in all types of containers and silos.
It can be used with all powdery and granulated bulk materials with a density greater than
20 g/l (1.25 lb/ft3) that do not show a strong tendency to form crusts or deposits.
The units can be delivered with Ex-approvals for use in Dust Hazardous Areas.
A selection of fields of application:
● Building materials industry
– lime, moulding sand, etc.
● Food industry
– milk powder, flour, salt, etc.
● Plastics industry
– plastics granules etc.
● Timber industry
● Chemical industry
● Mechanical engineering
The LVS300 oscillating probe is normally screwed into the lateral container wall so that it is
level with the filling height to be registered and monitored.
The device can also be mounted from the top of the container. In this case an extension
piece is used to mount the probe level with the height to be registered.
The length of the probe can be up to 4 m (157”) with an extension.
The use of a sliding sleeve is recommended so that the switch point can be changed
continuously during operation of the device.
1.2 Function
The piezo-electrically stimulated oscillating rod vibrates at its mechanical resonance
frequency. If the probe is covered by the bulk material, the damping thus generated is
registered electronically and a corresponding signal output is actuated.
The oscillation of the rod ensures a certain self-cleaning effect.

Introduction
1.2 Function
SITRANS LVS300
6 Operating Instructions, 05/2019, A5E44908583-AB
① Pipe extension
② Optional sliding sleeve
③ Compact version or pipe extension
④ Compact version
⑤
A
pplication in down pipe

SITRANS LVS300
Operating Instructions, 05/2019, A5E44908583-AB 7
Installing/mounting 2
2.1 General safety instructions
CAUTION
Process pressure
Improper installation may result in loss of process pressure.
CAUTION
Chemical resistance against the medium
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.
CAUTION
Temperature range
The range of the ambient and process temperature of the device must be observed (see
Ambient Temperature (Page 39)and for Ex-approvals here). (Page 12)
CAUTION
Special conditions of use
Model 7ML5738 Extension tube is constructed using Industry Electrical conduit installed by
qualified personnel per equipment manual and NFPA 70 National Electrical Code (FM
Approved Unit).
Model 7ML5738 Extension tube is constructed using Industry Electrical conduit installed by
qualified personnel per equipment manual and CEC C22.1 Canadian Electrical Code.
CAUTION
Mechanical load
The torque at the fastening spot must not exceed 180 Nm (Pipe extension)/ 100 Nm
(Customer supplied pipe extension) ①
Maximum length "L“ in dependence on the deviation (in degrees) from vertical installation
②=Load

Installing/mounting
2.1 General safety instructions
SITRANS LVS300
8 Operating Instructions, 05/2019, A5E44908583-AB
Max. deviation Max. length "L"
5o 4,000 mm (157.5")
45o 1,200 mm (47.24")
>45o 600 mm (23.62")
Note
Mounting location
Keep distance to incoming material and to the silo wall. The installation has to be done so
that the sensor elements cannot hit the wall of the silo. The flow of the medium and fixtures
in the container must be considered. This is especially important for extension length more
than 3 m (118.1“).
Note
Sliding sleeve

Installing/mounting
2.2 Additional safety instructions for hazardous locations
SITRANS LVS300
Operating Instructions, 05/2019, A5E44908583-AB 9
① “Pressure tight” version: Tighten both straining screws M8 with 20 Nm to obtain resistance
against pressure.
Note
Flange mounting
A plastic sealing must be used to tighten the flange.
Note
Fastening of the threaded process connection
Mounting torque for the thread may not exceed 80 Nm. Use a 50 mm (1.97“). For units with
sliding sleeve, use a 55 mm (2.17“) open-end wrench. Do not fasten by turning the housing.
Note
Food grade material
The materials are available for the use under normal and predictable applications (according
to directive 1935/2004 Art.3). Other conditions can influence the safety.
2.2 Additional safety instructions for hazardous locations
Note
Installation regulations
For devices to be used in hazardous locations, the respective valid installation regulations
must be observed.
Note
Sparks
The installation has to be done so mechanical friction or impact can not cause sparks
between the aluminium enclosure and steel.

Installing/mounting
2.3 Mounting instructions
SITRANS LVS300
10 Operating Instructions, 05/2019, A5E44908583-AB
2.3 Mounting instructions
Note
Oscillating rod
Do not bend, shorten or extend the oscillating rod since this will destroy the device.
Note
Direction of the cable glands
When the unit is mounted from the side, ensure that the cable glands face downward and
are closed to avoid water penetration into the housing. The housing can be rotated against
the threaded connection after mounting.
Note
Sealing
Seal the process thread with Teflon tape in case of process pressure.
Note
Precaution for later dismounting/ Service
Grease the screws of the lid if corrosive atmosphere is present (e.g. close to sea).
Note
Switching point
Heavy bulk material -> the signal output switches when the oscillating rod is covered by a
few mm of material.
Light bulk material -> the signal output switches when the oscillating rod is covered a few cm
of material.

Installing/mounting
2.3 Mounting instructions
SITRANS LVS300
Operating Instructions, 05/2019, A5E44908583-AB 11
① Observe max. torque
② Empty detector
③ Full detector
④ Pipe extension
⑤ 1½" sliding sleeve (Switch point can be set.)
⑥ Bulk material slides down more easily if the device is mounted with inclination (recommended)
⑦ Compact version or pipe extended
⑧ Sensitive area
⑨ Steel angle in case of high mechanical loading (approx. 200 mm (7.87") distance)
⑩ CORRECT: Vibrating rod leads into the product
⑪ WRONG: Socket too long: material chokes socket

Installing/mounting
2.4 Zone classification
SITRANS LVS300
12 Operating Instructions, 05/2019, A5E44908583-AB
2.4 Zone classification
Usable in zone
A
TEX category
Dust applications 20, 21, 22 1 D
21, 22 2 D
22 3 D*
* in case of conductive dust, additional demands for the installation are possible.
2.5 General notes
Note
Marking
Devices with EX approval are marked on the nameplate.
CAUTION
Process pressure
The device construction allows process over-pressure up to 16 bar (232 psi). These
pressures are allowed for test purposes. The definition of the Ex approval are only valid for
a container-overpressure between -0.2 .. +0.1 bar (-2.9 .. +1.45 psi).
For higher or lower pressures the approvals are not valid.
Note
Process and ambient temperature
The permitted temperature ranges are marked on the nameplate. The max. permitted
ambient and process temperatures (including temperature derating) stated in this manual
must be observed.

Installing/mounting
2.6 Permitted zones for mounting in partition wall
SITRANS LVS300
Operating Instructions, 05/2019, A5E44908583-AB 13
2.6 Permitted zones for mounting in partition wall
① Compact version
② Pipe extension
③ Category (ATEX) 2D, Zone 21
④ Category (ATEX) 1D, Zone 20
2.7 Max. surface temperature and temperature class
The temperature marking on the type plate refers to the instruction manual. In the following
table the relevant temperature ratings are shown.
The maximum surface temperature (resp. temperature class) is the warmest temperature of
the unit which could occur during malfunction (according to Ex-definition).

Installing/mounting
2.8 Manufacturing of the extension tube
SITRANS LVS300
14 Operating Instructions, 05/2019, A5E44908583-AB
① ambient side
② process side
Max. ambient
temperature
Max. process
temperature
Max. surface tem-
perature
Temperature class
(Division System)
Temperature class
(Zone System
60°C (140°F) 120°C (248°F) 120°C (248°F) T4 T4
130°C (266°F) 130°C (266°F) T4 T4
140°C (284°F) 140°C (284°F) T3C T3
150°C (302°F) 150°C (302°F) T3C T3
2.8 Manufacturing of the extension tube
CAUTION
Obtain instruction manual for proper manufacturing of the extension tube. In case of
deviation from the instruction manual, the unit is not safe for use in Hazardous Locations.

Installing/mounting
2.8 Manufacturing of the extension tube
SITRANS LVS300
Operating Instructions, 05/2019, A5E44908583-AB 15
CAUTION
Specific Conditions of Use
Model 7ML5738 Extension tube is constructed using Industry Electrical conduit installed by
qualified personnel per equipment manual and NFPA 70 National Electrical Code (FM
Approved Unit).
Model 7ML5738 Extension tube is constructed using Industry Electrical conduit installed by
qualified personnel per equipment manual and CEC C22.1 Canadian Electrical Code.
Note
Demands on the Extension tube
Material: Stainless steel 1.4301 (SS304) or 1.4305 (SS301) or 1.4571 (SS316Ti) or 1.4404
(SS316L)
The pipe must be manufactured from one single piece. It is not allowed to weld two or more
pieces together.
Carefully observe max. length, diameter, wall thickness, thread, tolerances as specified in
the drawing.
All sharp edges must be removed to protect the cable.
Thread testing
Each thread must be tested with go and no-go ring gauge according to standard EN 10226
(R 1“ version) or ANSI B 1.20.1 (NPT 1“ version).

Installing/mounting
2.8 Manufacturing of the extension tube
SITRANS LVS300
16 Operating Instructions, 05/2019, A5E44908583-AB
① free from burrs
② *Version with R 1" thread Thread R 1" EN 10226
Effective thread length: 14.5 .. 19.1 mm (0.57 to 0.75")
(dimension L1 according to standard EN 10226)
*Version with NPT 1" thread Thread 1" NPT ANSI B 1.20.1
Effective thread length: 17.3 +2mm (0.68 +0.08")
(dimension L2 according to standard ANSI B 1.20.1)
*The thread on the Extension tube must be manufactured
either with R 1" or 1" NPT. This is dependent on the selected
version in pricelist pos. "Process connection" and pos. "Ap-
provals". For more details, see Customer supplied pipe exten-
sion details. (Page 45)
③ same as the other end
X Pipe length X = L - 190 mm (7.5")
Min. L = 250 mm (9.9")
Max. L = 1,500 mm (59") with pos. "Extension length 1.500 mm (59")"
or 4,000 mm (157") with pos. "Extension length 4.000 mm (157")"
Note: L is the total extension length.

Installing/mounting
2.9 Assembly of the unit
SITRANS LVS300
Operating Instructions, 05/2019, A5E44908583-AB 17
2.9 Assembly of the unit
1. Mounting of the Extension pipe
CAUTION
The tube must be assembled very carefully to ensure permanent sealing, electrical
grounding and mechanical stability. Observe the follow mounting instructions.
CAUTION
Make sure that the thread of the extension tube and the thread of the screwed piece/
oscillating piece is the same type (do not mix R and NPT thread).
– Feed the connecting wire through the 1“ Extension pipe and the screwed piece. Use a
separate taut wire for easy working.
– Screw the 1“ Extension tube into the oscillating piece and the screwed piece.
Requirements for proper sealing and electrical grounding:
Sealing must satisfy IP67 or NEMA Type 4 at both sides of the extension tube. To
reach this, the threads must be sealed with temperature resistant sealing for 150°C
(302°F). Max. thickness of the sealing is 0.2 mm (0.008").
The threads must be fixed with 50 Nm.
Use a open-end wrench to attach the oscillating piece (do not use the oscillating rods).

Installing/mounting
2.9 Assembly of the unit
SITRANS LVS300
18 Operating Instructions, 05/2019, A5E44908583-AB
① Connecting wire
② Cable gland
③ Housing
④ Screwed piece
⑤ Extension pipe
⑥ Oscillating piece
⑦ Oscillating rod
2. Checking the cable length
Push back the cable into the extension tube until the stated length is present. Take care
that no cable is wound up inside the housing.
If the cables are too long to be pushed back, go to step 3; otherwise go on to step 4.
① Housing
② Extension tube

Installing/mounting
2.9 Assembly of the unit
SITRANS LVS300
Operating Instructions, 05/2019, A5E44908583-AB 19
3. Cutting the cables (if required)
If the cables are too long to be pushed back into the extension tube, shorten the cable to
the length as stated in step 2. Prepare the cables as shown. Use the attached hoses and
cable sleeves for proper mounting.
① red
white
blue
black
② red
③ Blue cable soldered to shield
④ Silicone hose
⑤ Shrinking tube
⑥ Blue cable sleeves on cables red/white
⑦ White cable sleeves on cables blue/black

Installing/mounting
2.9 Assembly of the unit
SITRANS LVS300
20 Operating Instructions, 05/2019, A5E44908583-AB
4. Connecting the plug
Observe correct sequence.
① Red
② White
③ Blue
④ Black
5. Fixing the cable tie
Before fixing the cable tie, observe correct cable length as stated and that no cable is
wound up inside the housing.
① Cable tie
6. Insert electronics
Insert the plug into the electronic, insert the electronics into the housing, and fix the
electronics plastic cover with 4 screws.