Siemens sitrans lc 300 Instruction manual

Capacitance Transmitters
Quick Start Manual 03/2013
SITRANS LC300
SITRANS

IQ300IX.fm Page 5 Tuesday, October 2, 2001 1:43 PM

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SITRANS LC300 Quick Start Manual
This manual outlines the essential features and functions of the SITRANS LC300. We strongly
advise you to acquire the detailed version of the manual so you can use your instrument to its
fullest potential. The complete manual is available at: www.siemens.com/level. The printed
manual is available from your Siemens Milltronics representative.
Questions about the contents of this manual can be directed to:
Siemens Milltronics Process Instruments
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario, Canada, K9J 7B1
Email: [e-mail]
MILLTRONICS is a registered trademark of Siemens Milltronics Process Instruments
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:
1
Copyright Siemens Milltronics
Process Instruments 2013.
All Rights Reserved
Disclaimer of Liability
We encourage users to purchase authorized
bound manuals, or to view electronic
versions as designed and authored by
Siemens Milltronics Process Instruments.
Siemens Milltronics Process Instruments
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.
WARNING: relates to a caution symbol on the product, and means that failure to
observe the necessary precautions can result in death, serious injury, and/or
considerable material damage.
WARNING1: means that failure to observe the necessary precautions can result
in death, serious injury, and/or considerable material damage.
CAUTION: means that failure to observe the necessary precautions can result in
considerable material damage.
Note: means important information about the product or that part of the operating manual.
1. This symbol is used when there is no corresponding caution symbol on the product.

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Definitions
SITRANS LC300
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 non-conductive) 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.
SITRANS LC300 Outputs
• 4 – 20 or 20 – 4 mA, 2-wire current loop circuit
• Isolated from the measurement circuit
• Current signalling according to NAMUR NE 43
Specifications
For a complete listing, see the SITRANS LC300 Instruction Manual.
Ambient/Operating Temperature
Process Conditions
Ambient temperature – 40 to +85 °C (– 40 to +185 °F)
Pressure range -1 to 35 bar g (-14.6 to 511 psi g)
Process temperature range -40 to +200 °C (-40 to +392 °F)
Min. relative dielectric constant (>r):1.5
Power
Short form Long Form Description Units
LRV Lower Range Value value for 0 % (in pF) 4 mA
pF pico Farads 10-12 Farad
PV Primary Variable measured value
URV Upper Range Value value for 100% (in pF) 20 mA
Note: SITRANS LC300 is to be used only in the manner outlined in this 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.
• Supply voltage: 12-30 V DC any polarity, 2-wire current loop circuit, max. resistance
value 550 @ 24 V DC

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Approvals
• General CSAus/c, FM, CE, C-TICK
• Hazardous
Dust Ignition Proof With Intrinsically Safe Probe:
(Europe) ATEX 1/2 D T100 ºC
(US/Canada) FM/CSA:
Class II, Div. 1, Groups E,F,G
Class III T4
Flameproof With Intrinsically Safe Probe:
(Europe) ATEX II 1/2 G EEx d [ia] IIC T6...T1
ATEX II 1/2 D T100ºC
(Brazil) INMETRO DNV 12.0073 X 
Ex d [ia Ga] IIC T6 … T4 Gb 
Ex tb IIIC T85 ºC … T100 °C Db 
IP65/IP68 
DNV #OCP 0017
ABNT NBR IEC 60079-0:2008, 
ABNT NBR IEC 60079-1:2009, 
ABNT NBR IEC 60079-11:2009 e
ABNT NBR IEC 60079-31:2011
Explosion Proof With Intrinsically Safe Probe:
(US/Canada) Class I, Div. 1, Groups A,B,C,D
Class II, Div. 1, Groups E,F,G
Class III T4
• Marine Bureau Veritas Type Approval
ABS Type Approval
• Overfill Protection
AIB-Vincotte
• Other Pattern Approval (China)

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Installation
Handling Precautions
WARNING: This product can only function properly and safely if it is correctly
transported, stored, installed, set up, operated, and maintained.
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:
Towards the end of the
rod Midway along the rod At the process connection or flange
Once vertical, LC300 may
be held by 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).

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Mounting Location
Recommendations
• Easy access for programming the unit using the rotary switch and buttons.
• An environment suitable to the housing rating and materials of construction.
Precautions
• Keep unit out of path of falling material. Protect probe from falling material by installing a
shield.
• Consider material surface configuration when installing unit.
• Tensile load must not exceed probe or vessel rating. On cable units, do not exceed the
tensile strength of the cable at 1900 kg / 4188 lbs.
.
Note: Buildup of material or condensation in the active shield area does not affect
operation.
500 mm 
(20") min
500 mm (20") min
50 mm
(2") min
Sensors must be at least 50 mm (2") from the wall or tank bottom and must be 500 mm (20") apart.
50 mm
(2") min
Wall Restriction Multiple Units

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Wiring
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..
Connecting the 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.

WARNINGS:
• Check the device nameplate and process device tag to verify the approval rating.
• Use appropriate conduit seals to maintain IP or NEMA rating.
4-20 mA (2-wire)
current-loop
measurement
signal (non
polarity
sensitive)
for factory software
update use only
menu/function
selector up / + button down / - button
orange (S)
black (O)
red (+)
white (S)
black (O)
red (+)
with safety barrier without safety barrier

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Product nameplates
Note: Information in boxes 1 through 6 based on customer order.

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Wiring setups for hazardous area installations
Flameproof / explosion proof configuration in hazardous areas
ATEX/INMETRO
Maximum permissible ambient temperature range in potentially explosive
atmospheres:
For category II 1 G:
–20 ºC to maximum +60 ºC (–4 ºF to maximum +140 ºF)
For category II 2 G:
–40 ºC to maximum +85 ºC (–40 ºF to maximum +185 ºF): T1
–40 ºC to maximum +85 ºC (–40 ºF to maximum +185 ºF): T2
–40 ºC to maximum +85 ºC (–40 ºF to maximum +185 ºF): T3
–40 ºC to maximum +85 ºC (–40 ºF to maximum +185 ºF): T4
–40 ºC to maximum +85 ºC (–40 ºF to maximum +185 ºF): T5
–40 ºC to maximum +70 ºC (–40 ºF to maximum +158 ºF): T6
• Maximum permissible process temperature range in potentially explosive
atmospheres:
For category II 1 G:
–20 ºC to maximum +60 ºC (–4 ºF to maximum +140 ºF)
For category II 2 G:
–40 ºC to maximum +400 ºC (–40 ºF to maximum +752 ºF): T1
–40 ºC to maximum +300 ºC (–40 ºF to maximum +572 ºF): T2
–40 ºC to maximum +200 ºC (–40 ºF to maximum +392 ºF): T3
–40 ºC to maximum +135 ºC (–40 ºF to maximum +275 ºF): T4
–40 ºC to maximum +100 ºC (–40 ºF to maximum +212 ºF): T5
–40 ºC to maximum +80 ºC (–40 ºF to maximum +176 ºF): T6
CSA/FM
• Maximum permissible ambient temperature range in potentially explosive
atmospheres:
–40 °C to maximum +85 °C (–40 ºF to maximum +185 ºF): T4
• Maximum permissible process temperature range in potentially explosive
atmospheres:
–40 °C to maximum +200 °C (–40 ºF to maximum+ 392 ºF)
–40 °C to maximum +400 °C (–40 ºF to maximum +752 ºF): 
high temperature version
WARNINGS:
• Turn off power before servicing any device.
• Please check the ambient and operating temperatures under “Ambient/
Operating Temperature” on page 2 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.