Siemens SITRANS L Series User manual

SITRANS LPS200
SITRANS L
Rotating Paddle Switch
SITRANS LPS200
Operating Instructions
7ML5725-.....-...., 7ML5726-.....-...., 7ML5727-.....-....,
7ML5728
-.....-...., 7ML5730-.....-....
04/2019
A5E34210883
-AB
Introduction
1
Safety notes
2
Description
3
Applications
4
Installing/mounting
5
Connection
6
Service and maintenance
7
Technical data
8
Dimension drawings
9
Technical reference
A
Certificates and support
B

Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E34210883
Ⓟ
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 LPS200
Operating Instructions, 04/2019, A5E34210883-AB 3
Table of contents
1 Introduction............................................................................................................................................. 5
1.1 Operating instructions scope ....................................................................................................5
2 Safety notes............................................................................................................................................ 6
2.1 Safety marking symbols............................................................................................................6
3 Description.............................................................................................................................................. 7
3.1 SITRANS LPS200 Overview ....................................................................................................7
3.2 Features....................................................................................................................................7
4 Applications ............................................................................................................................................ 8
5 Installing/mounting .................................................................................................................................. 9
5.1 Food grade material................................................................................................................10
5.2 Ambient temperature (housing)/process temperature ............................................................11
5.3 Process cautions.....................................................................................................................12
5.4 Sensitivity ................................................................................................................................13
6 Connection ........................................................................................................................................... 14
6.1 Universal voltage, DPDT, fail-safe..........................................................................................15
6.2 AC or DC version, SPDT ........................................................................................................16
6.3 Switching logic (universal voltage, DPDT)..............................................................................17
6.4 Signal output: delay (universal voltage, DPDT)......................................................................18
6.5 Alarm output - fail-safe option (universal voltage, DPDT) ......................................................19
6.6 Switching logic (AC or DC version, SPDT) .............................................................................20

Table of contents
SITRANS LPS200
4Operating Instructions, 04/2019, A5E34210883-AB
7 Service and maintenance...................................................................................................................... 21
7.1 Maintenance........................................................................................................................... 21
7.2 Unit repair and excluded liability ............................................................................................ 21
8 Technical data ...................................................................................................................................... 22
8.1 Power ..................................................................................................................................... 22
8.2 Performance........................................................................................................................... 23
8.3 Alarm output........................................................................................................................... 23
8.4 Mechanical............................................................................................................................. 24
8.5 Environmental ........................................................................................................................ 25
8.6 Process .................................................................................................................................. 26
8.7 Approvals ............................................................................................................................... 27
9 Dimension drawings.............................................................................................................................. 28
9.1 Dimensions and temperature ranges..................................................................................... 28
9.2 Extensions.............................................................................................................................. 30
9.3 Measuring vanes.................................................................................................................... 31
A Technical reference .............................................................................................................................. 32
A.1 Principle of operation ............................................................................................................. 32
B Certificates and support ........................................................................................................................ 33
B.1 Technical support................................................................................................................... 33
B.2 Certificates ............................................................................................................................. 33

SITRANS LPS200
Operating Instructions, 04/2019, A5E34210883-AB 5
Introduction
1
Note
•
Please follow the installation and operating procedures for a quick, trouble-free
installation and to ensure the maximum accuracy and reliability of your device.
•
This manual applies to SITRANS LPS200 only.
1.1 Operating instructions scope
This manual will help you set up your device for optimum performance.

SITRANS LPS200
6Operating Instructions, 04/2019, A5E34210883-AB
Safety notes
2
2.1 Safety marking symbols
In man-
ual
On
product
Description
earth (ground) terminal (shield)
protective conductor terminal
Dispose of in an environmentally safe manner, and according to local regulations.
WARNING: refer to accompanying documents (manual) for details.
CAUTION: Observe electrostatic discharge precautions prior to handling electronic components within
the wiring compartment.

SITRANS LPS200
Operating Instructions, 04/2019, A5E34210883-AB 7
Description
3
Note
•
Installation, maintenance, and commissioning must be performed by qualified technical
personnel.
•
The device must be used only in the manner outlined in this instruction manual.
•
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.
3.1 SITRANS LPS200 Overview
The device rotating paddle switch is used for level monitoring of bulk materials. It can be
used to detect full, demand, or empty conditions in silos, hoppers, or storage vessels of
materials such as grain, feed, cement, plastic granulate, and wood chips. The paddle switch
measures bulk densities as low as 100 g/l (6.2 lb/ft3) with the standard measuring vane,
35 g/l (2.2 lb/ft3) with the optional hinged vane, or 15 g/l (0.9 lb/ft3) with the optional
rectangular vane.
3.2 Features
●High integrity mechanical seal.
●AC, DC, or universal power supply.
●Unique friction clutch mechanism. When the measuring vane encounters sudden
resistance, the friction clutch slips to prevent internal component damage.
●Optional fail-safe function alarms on fault conditions or component failure.
●Rotatable enclosure.
●Optional vanes for use with high and low bulk densities to 15 g/l (0.9 lb/ft3).
●Compact, rigid extension (top mounted only), angled rigid extension, and cable extension
configurations available.
●High temperature and high pressure models available.
●Optional extension kit available for the compact version.

SITRANS LPS200
8Operating Instructions, 04/2019, A5E34210883-AB
Applications
4
●Grain, feed, cement, plastic granulate, wood chips, rice, soybeans, etc.
●Low or high bulk density materials.

SITRANS LPS200
Operating Instructions, 04/2019, A5E34210883-AB 9
Installing/mounting
5
N
ote
•
Installation shall be performed by qualified personnel and in accordance with local
governing regulations.
•
For heavy material, only top mounting of paddle switch is recommended.
•
Compact SITRANS LPS200 is recommended for side mounting on bins for low or
intermediate levels.
•
For SITRANS LPS200 Cable extension, the maximum pull force of the rope must not
exceed 4 kN (28 kN with reinforced option).
•
When installing LPS200 with rigid extension kit, ensure product is top mounted and never
side or angle mounted.
WARNING
This product is designated as a Pressure Accessory per Directive 97/23/EC and is not
intended for use as a safety device.
WARNING
Improper installation may result in loss of process pressure.
The device is normally mounted into the vessel top (full detector) or through the tank wall at
the detection level (full, demand or empty detector). The device can be installed through a
standard 1¼" NPT or 1½" BSPT pipe coupling, depending on the chosen process thread.

SITRANS LPS200
10 Operating Instructions, 04/2019, A5E34210883-AB
5.1 Food grade material
The materials are available for use under normal and predictable applications (according to
directive 1935/2004 Art. 3). Other conditions can influence safety.
After mounting and as a precaution against water ingress into the housing, turn the housing
clockwise until the cable entries point downward.
Note
•
Ensure measuring vane is out of any region that is susceptible to build-up.
•
For heavy material loads and protection against falling material, provide angled
protection.
•
Ensure cable gland faces downward to avoid water intrusion.

SITRANS LPS200
Operating Instructions, 04/2019, A5E34210883-AB 11
5.2 Ambient temperature (housing)/process temperature
-40 °C (-40 °F) ambient and process temperature for version with heating of housing
①
T amb.
②
T process

SITRANS LPS200
12 Operating Instructions, 04/2019, A5E34210883-AB
5.3 Process cautions
CAUTION
Keep the device out of the path of falling material.
CAUTION
Protect shaft and measuring vane from falling material.

SITRANS LPS200
Operating Instructions, 04/2019, A5E34210883-AB 13
5.4 Sensitivity
①
Sensitivity spring
②
High
③
Medium
④
Low
Universal voltage version shown.
To adjust the sensitivity of the device, use pliers to move the sensitivity spring to the
appropriate position (factory setting is medium). The optional measuring vanes can also
improve sensitivity.

SITRANS LPS200
14 Operating Instructions, 04/2019, A5E34210883-AB
Connection
6
WARNING
•Open device only when supply voltage is switched off.
•For switch-selectable voltage version, select correct voltage using manual voltage
jumper before switching on the power supply.
N
ote
•
All field wiring must have insulation suitable for at least 250 V AC.
•
A disconnect switch shall be in close proximity to the equipment and within easy reach of
the operator.
•
Unused cable conduit fittings must be locked with a closing element or plug.
•
Commissioning must be done only with a closed device.
•
Observe all pertinent rules and regulations of the country of installation.
E
uropean standards
•
Cable glands and conduit system for ATEX IECEx (Dust and Gas Hazardous Locations):
Installation according to the regulations of the country where the unit is installed. Not
used entries have to be closed with blanking elements certified for this purpose. Where
available, factory provided parts must be used.
A strain relief must be provided for the field wiring cables, when the device is installed
with the factory provided cable glands.
The diameter of the field wiring cable must match to the clamping range of the cable
clamp. If parts other than the factory provided parts are used, the following must be
ensured:
The parts must have an approval adequate to the approval of the level sensor (certificate
and type of protection). The approved temperature range must be from the minimum
ambient temperature of the level sensor to the maximum ambient temperature of the leve
l
sensor increased by 10K.
The parts must be mounted according to the instructions of the supplier.
•
Conduit system for FM and CSA (Dust and Gas Hazardous Locations):
General requirements: In addition, the regulations of the country must be observed. The
used flameproof seals and blanking elements must have an adequate type approval and
a temperature range of at least -40 to 80 °C (-40 to 176 °F). In addition, they shall be
suitable for the conditions and correctly installed. Where available, the provided original
parts of the manufacturer must be used.

SITRANS LPS200
Operating Instructions, 04/2019, A5E34210883-AB 15
Note
•
Before opening the lid, ensure there are no dust deposits around the device. Ensure that
the atmosphere around the device is settled.
•
Use a fuse for the signal output and power supply (max. 10 A, fast or slow, HBC, 250 V).
•
Make sure the main voltage does not exceed the maximum voltage listed on the product
label and the setting of the voltage selector.
•
In case of inexpert handling or handling malpractice, the electric safety of the device
cannot be guaranteed.
•
Provide protection for relay contacts to protec
t the device against spikes if inductive loads
are connected.
6.1 Universal voltage, DPDT, fail-safe
Power supply:
24
V DC ± 15 %1) max. 4 W 22 ... 230 V
50/60
Hz ± 10 %1) max. 10 VA External fuse:
max. 10A, fast or slow, HBC, 250
V
Signal and alarm output:
Relay DPDT contact
max. 250
V AC, 5A non-inductive
max. 30
V DC, 4A, non-inductive
External fuse: max. 10A, fa
st or
slow, HBC, 250
V
①
Max. 4 mm2 (AWG12)
②
PE
③
Fail-safe2)
④
Signal output DPDT
1) Including ± 10 % of EN 61010-1.
2) With fail-safe option, contact is open when de-energized.

SITRANS LPS200
16 Operating Instructions, 04/2019, A5E34210883-AB
6.2 AC or DC version, SPDT
①
Signal output
②
24 V or 48 V or 115 V or 230 V AC ± 10 %
50/60 Hz, 4 VA
or
24 V DC, 2.5 W ± 15 %
1)
③
PE
1) Including 10 % of EN 61010.

SITRANS LPS200
Operating Instructions, 04/2019, A5E34210883-AB 17
6.3 Switching logic (universal voltage, DPDT)
FSH:
Use this setting when sensor is used as a full
detector.
Power failure or line break is regarded as "full"
signal (protection agai
nst overfilling).
FSL:
Use this setting
when sensor is used as an
empty detector.
Power failure or line break is regarded as "full"
signal (protection against overfilling).
Factory setting: FSL
①
Power failure
②
Green
③
Yellow
④
DPDT
⑤
SPDT
⑥
Yellow
⑦
Green
⑧
DPDT
⑨
SPDT
⑩
FSL
⑪
FSH

SITRANS LPS200
18 Operating Instructions, 04/2019, A5E34210883-AB
①
FSL
②
FSH
6.4 Signal output: delay (universal voltage, DPDT)
①
Sensor covered →free
Factory setting = 3 seconds
②
Sensor free →covered
Factory setting = 1 seconds

SITRANS LPS200
Operating Instructions, 04/2019, A5E34210883-AB 19
6.5 Alarm output - fail-safe option (universal voltage, DPDT)
①
Yellow or green
②
Red
③
Fault
④
No fault
Switching and timing behavior: If the vane is not covered, the rotating vane shaft will send
pulses at 20 second intervals. In case of fault, the pulses are missed. After 30 seconds, the
alarm relay will open.
Connection example:
Full detector with maximu
m safety:
The output signal opens in case of:
•
Full signal, or
•
Failure of supply voltage, or
•
Defect of the connection wires, or
•
Defective unit

SITRANS LPS200
20 Operating Instructions, 04/2019, A5E34210883-AB
6.6 Switching logic (AC or DC version, SPDT)