Siemens sitrans lc 300 User manual

SITRANS LC300
SITRANS L
Capacitance continuous level
transmitter
SITRANS LC300
Operating Instructions
7ML5670 (LC300 standard, rod version)
7ML5671 (LC300 standard, stilling well version)
7ML5672 (LC300 standard, stainless steel cable
version)
7ML5673 (LC300 standard, PFA cable version)
05/2021
A5E47904073
-AA
Safety notes
1
The Manual
2
SITRANS LC300
3
Installation
4
Wiring
5
Operation
6
Technical data
7
Dimensions
8
Technical references
A
Product documentation and
support
B

Siemens AG
Digital Industries
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E47904073
Ⓟ
06/2021 Subject to change
Copyright © Siemens AG 2020.
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 LC300
Operating Instructions, 05/2021, A5E47904073-AA 3
Table of contents
1 Safety notes........................................................................................................................................... 5
2 The Manual ............................................................................................................................................ 6
3 SITRANS LC300....................................................................................................................................... 7
3.1 Applications......................................................................................................................... 7
3.2 Features .............................................................................................................................. 8
4 Installation............................................................................................................................................. 9
4.1 Location .............................................................................................................................. 9
4.2 Pressure Equipment Directive, PED, 97/23/EC ..................................................................... 10
4.3 Handling Precautions ......................................................................................................... 10
4.4 Mounting .......................................................................................................................... 11
4.4.1 General safety instructions................................................................................................. 11
4.4.2 Multiple units and wall restriction ...................................................................................... 13
4.5 Process cautions ................................................................................................................ 14
5 Wiring .................................................................................................................................................. 17
5.1 Signal amplifier/power supply ............................................................................................ 17
5.2 Connecting the SITRANS LC300.......................................................................................... 18
5.3 Wiring setups for hazardous area installations .................................................................... 19
5.3.1 Flameproof / explosion proof configuration in hazardous areas........................................... 19
5.4 Instructions specific to hazardous area ............................................................................... 20
5.4.1 Notes for use in hazardous locations .................................................................................. 20
5.4.2 Specific condition of use .................................................................................................... 22
5.4.3 Warnings for installation .................................................................................................... 22
6 Operation............................................................................................................................................. 24
6.1 Start up ............................................................................................................................. 24
6.1.1 Menu functions ................................................................................................................. 25
6.2 Menu position 0 ................................................................................................................ 25
6.3 Menu position 1 ................................................................................................................ 26
6.4 Menu position 2 ................................................................................................................ 26
6.5 Menu position 3 ................................................................................................................ 27
6.6 Menu position 4 ................................................................................................................ 28
6.7 Menu position 5 ................................................................................................................ 29
6.8 Recommissioning............................................................................................................... 29
6.9 Maintenance ..................................................................................................................... 30

Table of contents
SITRANS LC300
4Operating Instructions, 05/2021, A5E47904073-AA
6.10 Unit repair and excluded liability ........................................................................................ 30
7 Technical data...................................................................................................................................... 31
8 Dimensions .......................................................................................................................................... 35
8.1 Threaded rod version with PFA probe................................................................................. 36
8.2 Threaded rod version with PFA probe and stilling well ........................................................ 37
8.3 Cable version, non-insulated, threaded .............................................................................. 39
8.4 Cable version, insulated, threaded ..................................................................................... 40
8.5 Welded flange ................................................................................................................... 42
8.6 Welded flange, threaded, with stilling well......................................................................... 44
8.7 Cable version, non-insulated, welded flange ...................................................................... 45
8.8 Cable version, insulated, welded flange ............................................................................. 47
8.9 Cable tensile strength ........................................................................................................ 48
8.10 Shortening the cable.......................................................................................................... 48
A Technical references............................................................................................................................ 50
A.1 Technical References ......................................................................................................... 50
A.2 SITRANS LC300 Pressure versus temperature curves ........................................................... 51
A.2.1 LC300 Standard, extended rod, and cable versions, threaded ............................................. 51
A.2.2 LC300 Standard, extended rod, and cable versions, ASME flanged...................................... 52
A.2.3 LC300 Standard, extended rod, and cable versions, EN flanged .......................................... 53
B Product documentation and support .................................................................................................. 54
B.1 Product documentation ..................................................................................................... 54
B.2 Technical support .............................................................................................................. 55
Index.................................................................................................................................................... 57

SITRANS LC300
Operating Instructions, 05/2021, A5E47904073-AA 5
Safety notes
1
Safety marking symbols
In manual
On Product
Description
Caution: refer to accompanying documents (manual) for de-
tails.
Earth (ground) Terminal
Protective Earth Terminal

SITRANS LC300
6Operating Instructions, 05/2021, A5E47904073-AA
The Manual
2
Note
Follow the installation and operating procedures for a quick, trouble
-free installation and to
ensure the maximum accuracy and reliability of your SITRANS LC300. This manual applies to
the SITRANS LC300 model only.
This manual will help you set up your SITRANS LC300 for optimum performance.
Sections in this manual are designated as follows:
•SITRANS LC300 - an introduction to SITRANS LC300 and to the manual
•Technical data (Page 31)
•Installation (Page 9)
•Wiring
•Operation
•Appendix A: Technical References
Application examples
The application examples used in this manual illustrate typical installations using SITRANS
LC300; other configurations may also apply.
In all examples, substitute your own application details. If the examples do not apply to your
application, check the applicable parameter reference for the available options.
See also
www.siemens.com/level (www.siemens.com/level)

SITRANS LC300
Operating Instructions, 05/2021, A5E47904073-AA 7
SITRANS LC300
3
Note
•
SITRANS LC300 is to be used only in the manner outlined in this instruction manual,
otherwise protection provided by the equipment may be impaired.
•
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.
SITRANS LC300 is a cost-effective instrument for level measurement in applications such as
the processing of food and beverages, pharmaceuticals, detergents and pet food. It performs
in liquids, bulk solids and slurries, including viscous (conductive or nonconductive) materials,
even in challenging environments involving vapour and dust.
LC300 is a 2-wire instrument combining a sophisticated, yet easy-to-adjust, microprocessor
transmitter with field-proven probes.
The electronic component contains the measurement module (driver) and the
microprocessor module. This set of parts forms a calibrated pair that measures process
capacitance in pico Farads (pF) which is proportional to the level of material in the tank. An
optional safety barrier can be included in the electronic compartment for Hazardous Area
applications.
The probe comprises a measurement section and an active shield section that is a fixed
length. The probe is the primary system sensor, and it indicates the electrical capacitance
value of the measurement section relative to the environment (tank wall, stilling well, or
conductive material). This part of the probe connects to the electronic transmitter.
3.1
3.2 Applications
•Mining and cement
•Power
•Food and beverage
•Water
•Chemical
•Oil and gas

SITRANS LC300
SITRANS LC300
8Operating Instructions, 05/2021, A5E47904073-AA
3.3
3.4 Features
•Threaded and flanged process connections: see "Process connections" under "Electrodes"
in Technical data (Page 31)
•Corrosion resistant construction, PFA, PEEKTM 1), and 316L stainless steel wetted parts
•5 m (16.4 ft) maximum insertion length for rod versions and 25 m (82 ft) maximum
insertion length for cable versions
•Rugged shear and abrasion resistant probe
•Fully adjustable range: level, damping, diagnostics, etc.
•Field adjustable insertion length for cable probes without PFA insulation
•Probe input ESD protected
•Field proven and patented Active-Shield technology and variable frequency oscillator
1) PEEK is a registered trademark of Victrex plc.

SITRANS LC300
Operating Instructions, 05/2021, A5E47904073-AA 9
Installation
4
4.1 Location
WARNING
•Never attempt to loosen, remove or disassemble process connection or instrument
housing while vessel contents under pressure.
•Installation shall be performed only by qualified personnel and in accordance with local
governing regulations.
•This device is to be used only in the manner outlined in this manual. Otherwise,
protection provided by the device may be impaired.
•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.
•Improper installation may result in loss of process pressure.
•Handle the device using the enclosure, not the antenna or the device tag, to avoid
damage.
Note
•
Refer to the device nameplate for approval information.
•
SITRANS LC300 units are pressure tested, meeting or exceeding the requirements of the
ASME Boiler and Pressure Vessel Code and the European Pressure Equipment Directive.
•
The serial numbers stamped in each process connection body provides a unique
identification number indicating date of manufacture.
•
Example: MMDDYY - XXX (where MM = month
, DD = day, YY = year, and XXX = sequential
unit produced)
•
Further markings (space permitting) indicate flange configuration, size, pressure class,
material, and material heat code.
•
This product is susceptible to electrostatic shock. Follow proper grounding procedures.

Installation
SITRANS LC300
10 Operating Instructions, 05/2021, A5E47904073-AA
4.2
4.3 Pressure Equipment Directive, PED, 97/23/EC
Siemens Level Transmitters with flanged, threaded, or sanitary clamp type process mounts
have no pressure-bearing housing of their own, and therefore do not come under the
Pressure Equipment Directive as pressure nor safety accessories (see EU Commission
Guideline 1/8 and 1/20).
SITRANS LC300 as supplied in the standard probe lengths is normally mounted on the vessel
top or through the tank wall at the detection level (if used as Point Level switch).
The cable version is designed for top mounting. The cable suspends vertically so that it
reaches into the process with the end of the cable being the start of the measurement
(dependent on probe option).
4.4
4.5 Handling Precautions
WARNING
To prevent damage, all LC300 units with a rod longer than 2 m (6.5 ft) must be handled as
described below.
When lifting LC300 from a horizontal position, support it at these three points:
①
Towards the end of the rod
②
Midway along the rod
③
At the process connection or flange

Installation
SITRANS LC300
Operating Instructions, 05/2021, A5E47904073-AA 11
Once vertical, LC300 may be held by the process connection or flange:
①
At the process connection or flange
Note
Unit shown is LC300 Threaded Rod Version. Handling precautions apply to all LC300 units
with rods longer than 2 m (6.5 ft).
4.6
4.7 Mounting
4.7.1 General safety instructions
•Installation shall be performed only by qualified personnel and in accordance with local
governing regulations.
•This device is to be used only in the manner outlined in this manual. Otherwise, protection
provided by the device may be impaired.

Installation
4.7 Mounting
SITRANS LC300
12 Operating Instructions, 05/2021, A5E47904073-AA
•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.
•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.
•Refer to the device nameplate for approval information.
•This product is susceptible to electrostatic shock. Follow proper grounding procedures.
•Before inserting the instrument into its mounting connection, check to ensure the threads
are matching to avoid damaging them.
•Cable entry devices and closing elements of unused apertures must meet a temperature
range from min. -40 to 10 K above max. ambient temperature.
Pressure applications
•Never attempt to loosen, remove or disassemble process connection or instrument
housing while vessel contents under pressure.
•Improper installation may result in loss of process pressure.
•For pressure applications, use PTFE tape or other appropriate thread sealing compound
and tighten the process connection beyond hand-tight.
•LC300 units are pressure tested, meeting or exceeding the requirements of the ASME
Boiler and Pressure Vessel Code and the European Pressure Equipment Directive.
Rope tensile strength
•Do not exceed the tensile strength of the rope at 1900 kg/4188 lbs.
•Always confirm that the load carrying capability of the silo/tank roof is sufficient to
withstand the actual force on the rope conditions, especially where the force will be, or
could be, as great as 1900/4188 lbs. A rope probe with a PFA jacket reduces the amount
of possible product buildup on the probe as well as the tensile force on the rope.

Installation
4.7 Mounting
SITRANS LC300
Operating Instructions, 05/2021, A5E47904073-AA 13
4.7.2 Multiple units and wall restriction
Horizontally mounted units are configured as point level switches. Mount diagonally if
vertical space is restricted.
Note
These drawings are not to scale.

Installation
SITRANS LC300
14 Operating Instructions, 05/2021, A5E47904073-AA
4.8
4.9 Process cautions
CAUTION
Keep unit out of path of falling material.
CAUTION
Consider material surface configuration when installing unit.

Installation
4.9 Process cautions
SITRANS LC300
Operating Instructions, 05/2021, A5E47904073-AA 15
CAUTION
Tensile load must not exceed probe or vessel rating.

Installation
4.9 Process cautions
SITRANS LC300
16 Operating Instructions, 05/2021, A5E47904073-AA
Note
Buildup of material or condensation in active shield area does not affect operation.

SITRANS LC300
Operating Instructions, 05/2021, A5E47904073-AA 17
Wiring
5
WARNING
•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 (Page 20).
•Cable entry devices and closing elements of unused apertures must meet a temperature
range from min. -40°C to 10 K above max. ambient temperature.
5.1
5.2 Signal amplifier/power supply
SITRANS LC300 uses a switched power supply circuit that makes the most efficient use of the
available power present on the terminals. If the signal current is low (4 mA), the terminal
voltage will increase due to a voltage drop of other components in the loop, and if the signal
current is high (20 mA), the terminal voltage will decrease.
Loosen the lid clip and remove the enclosure cover to access connectors and electronics.

Wiring
SITRANS LC300
18 Operating Instructions, 05/2021, A5E47904073-AA
①
Menu/Function selector
②
For factory software update use only
③
With safety barrier
Without safety barrier
White (S)
Orange (S)
Black (O)
Black (O)
Red (+)
Red (+)
④
4-20 mA (2-wire) current-loop
Measurement signal (non polarity sensitive)
⑤
Down / - button
⑥
Up / + button
5.3
5.4 Connecting the SITRANS LC300
1. Loosen the retaining lid clip and remove the enclosure cover.
2. Loosen the cable gland and thread the cable through it.
3. Connect the power/signal conductor wires to the current-loop terminal blocks (any polarity).
The loop voltage must be between 12 and 30 V DC.
4. Ground the enclosure by connecting the housing and the process connection with either the
stilling well and/or the tank wall, using the ground lug near the bottom of the housing.
5. Check that all connections are secure.
6. Replace enclosure cover and tighten retaining lid clip.

Wiring
SITRANS LC300
Operating Instructions, 05/2021, A5E47904073-AA 19
WARNING
The sensor terminal block connects the electronics to the measurement module, providing
the supply voltage and receiving the frequency signal from the measurement. The user
should not alter these connections.
Connect protective earth wire to terminal provided in housing and marked with
Use crimp type cable socket for 4 mm screw diameter, ring form or U-form (e.g. DIN 46234).
5.5
5.6 Wiring setups for hazardous area installations
WARNING
•Turn off power before servicing any device.
•Please check the ambient and operating temperatures under Environmental and Process
in Technical data (Page 31) for the specific configuration you are about to use or install.
•In potentially explosive atmospheres:
–open the enclosure only when SITRANS LC300 is not energized.
Note
The transmitter is in operation when the power supply is switched on.
5.6.1 Flameproof / explosion proof configuration in hazardous areas
ATEX
Flameproof and Dust Ignition Proof with intrinsically safe output to probe
Ambient Temperature
Range
Process Temperature Range Max. Surface
Temperature (EPL
Da)
Max. Surface
Temperature
(EPL Db)
Temperature
Class (EPL Ga
or Gb)
-40 to +70°C (-40 to +158°F)
-40 to +75°C (-40 to +167°F)
1)
T200 80°C
T80°C
T6
-40 to +80°C (-40 to +176°F)
-40 to +90°C (-40 to +194°F)
1)2)
T
200
95°C
T90°C
T5
-40 to +80°C (-40 to +176°F)
-40 to +125°C (-40 to +257°F)
1)2)
T200 130°C
T90°C
T4
-40 to +80°C (-40 to +176°F)
-40 to +190°C (-40 to +374°F)
1)2)
T200 195°C
T90°C
T3
-40 to +80°C (-40 to +176°F)
-40 to +200°C (-40 to +392°F)
1)2)
T200 205°C
T90°C
T2
1) With option FFKM O-ring seal: Lower process temperature limited to -20°C (-4°F)

Wiring
SITRANS LC300
20 Operating Instructions, 05/2021, A5E47904073-AA
2)For process temperature > 85°C: Only applicable for versions with thermal isolator
INMETRO
Flameproof with intrinsically safe output to probe
Application in Zone 0 (cat 1G):
Ambient Temperature Range
Process Temperature Range
-20 to +60°C (-4 to +140°F)
-20 to +60°C (-4 to +140°F)
Application in Zone 1 (cat 2G):
Ambient Temperature Range
Process Temperature Range
Temperature Class
-40 to +70°C (-40 to +158°F)
-40 to +80°C (-40 to +176°F)
T6
-40 to +85°C (-40 to +185°F)
-40 to +100°C (-40 to +212°F)
1)
T5
-40 to +85°C (-40 to +185°F)
-40 to +135°C (-40 to +275°F)
1)
T4
-40 to +85°C (-40 to +185°F)
-40 to +200°C (-40 to +392°F)
1)
T3
1) For process temperature > 85°C: Only applicable for versions with thermal isolator
Dust Ignition Proof
The maximum surface temperature of T 100°C is based on a maximum ambient temperature
of +85°C.
FM/CSA
Explosion proof/Dust ignition proof
Ambient Temperature Range
Temperature Class
-40 to +85°C (-40 to +185°F)
T4
Process temperature is not considered for definition of Temperature class.
5.7
5.8 Instructions specific to hazardous area
5.8.1 Notes for use in hazardous locations
Use of this manual
For use and assembly, refer to the instructions in this manual. It contains all instructions
required by ATEX Directive 2014/34/EU, Annex II, 1/0/6 and Ordinance INMETRO n°179/2010.