Siemens SITRANS LVS100 User manual

SITRANS
Vibrating Switches
SITRANS LVS100/200
Operating Instructions 08/2012

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

7ML19985FT63 SITRANS LVS100/200 – INSTRUCTION MANUAL Page EN-1
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Safety Notes
Special attention must be paid to warnings and notes highlighted from the rest of the text
by grey boxes.
Safety marking symbols
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.
In
Manual
On
Product Description
(Label on product: yellow background.)
Caution: refer to accompanying documents (manual) for details.
(Caution symbol on product) Warning: Risk of electric shock
Earth (ground) Terminal
Protective Conductor Terminal

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The Manual
This manual will help you set up your SITRANS LVS100/200 for optimum performance. We
always welcome suggestions and comments about manual content, design, and
accessibility.
Please direct your comments to [email protected]. For the complete library of
Siemens Milltronics manuals, go to www.siemens.com/processautomation.
Notes:
• Please follow the installation and operating procedures for a quick, trouble-free
installation and to ensure the maximum accuracy and reliability of your
SITRANS LVS100/200
• This manual applies to SITRANS LVS100 and SITRANS LVS200 only.
• Product details and instructions in this manual relate to both SITRANS LVS100 and
SITRANS LVS200 unless otherwise stated.
• 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.

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SITRANS LVS100 and LVS200
Introduction
The SITRANS LVS100 and SITRANS LVS200 are available in a standard version, with the
SITRANS LVS200 offering two additional versions.
SITRANS LVS100, SITRANS LVS200 - Standard Version
• SITRANS LVS100/200 standard version is a vibrating level switch that detects high
or low levels of dry bulk solids in bins, silos, or hoppers. It has a compact design that
allows it to be top or side mounted and the vibrating fork ensures that the tines are
kept clean.
• SITRANS LVS100 is an entry level solids fork with a bulk density limit starting
at 60 g/l (3.8 lb/ft3). The LVS100 is available with rigid extension options to
4 000 mm (157").
• SITRANS LVS200 provides several output options for indication of point level
with products such as lime, styrofoam, flour, and plastic granules, starting at
20 g/l (1.2 lb/ft3). It handles a broader range of applications and is able to
measure bulk densities of less than 5g/l. In addition, the LVS200 has a wider
range of process configurations. SITRANS LVS200 standard length fork is
available with variable cable extension lengths to a maximum of 20 000 mm
(787") (cable extensions for top mount applications only). An optional longer
fork is available for increased sensitivity.
SITRANS LVS200 - Liquid/Solid Interface Version
• The SITRANS LVS200, liquid/solid interface version, is a vibrating level switch that
can also detect settled solids within liquids, or solids within confined spaces such
as feed pipes. This version is designed to ignore liquids in order to detect the
interface between a solid and a liquid. The design incorporates a short fork, and is
also available with variable cable extension lengths to a maximum of 7 000 mm
(275.59"), for top mount applications only.
SITRANS LVS200 - Pipe Extension Version
• The SITRANS LVS200, pipe extension version, is a vibrating level switch that
incorporates a customer supplied pipe extension [maximum length 3800 mm (150")]
with the standard or liquid/solid (short) LVS200 fork and electronics. This allows for
separation of the electronics and tuning fork for applications requiring a rigid
extension. Please see
SITRANS LVS200 Pipe Extended Version on page 26 for
information on assembly.
Notes
• Installation, maintenance, and commissioning must be performed by qualified
technical personnel.
• SITRANS LVS100/200 must be used only in the manner outlined in this instruction
manual.

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Product Features
• High resistance to mechanical forces
• Strong vibration resistance to high bulk material loads
• Rotatable enclosure
• LVS100: R 1½" (BSPT); 1¼" NPT (Taper) threaded connection
• LVS200: Stainless steel 1½” NPT or R 1½” (BSPT) threaded connection, or R 2"
(BSPT) or NPT sliding sleeve. DN 100 and 2, 3, 4" ASME flange and Triclamp 2"
options available.
• Suitable for high or low density material
LVS100 standard version: 30 g/l (1.9 lb/ft3) min.
LVS200 standard version: 20 g/l (1.2 lb/ft3) min.
LVS200 standard version with low density fork: 5 g/l (0.3 lb/ft3) min.
LVS200 liquid/solid interface version: 50 g/l (3.0 lb/ft3) min.
Product Applications
• Dry lime, styrofoam, flour, plastic granules
• High or low density, dry bulk materials
• Interface detection of a solid within a liquid (filter beds)
• Flow or no flow detection in pipe using liquid/solid LVS200 version
Principle of Operation
A signal from the electronic circuit excites a crystal in the probe, causing the fork to
vibrate. If the fork is covered by material, the change in vibration is detected by electronic
circuitry which causes the relay to change state after a one second delay. When the
material no longer reaches the tines, full vibration resumes and the relay reverts to its
normal state.
WARNINGS:
• This product is designed as a Pressure Accessory per Directive 97 / 23 / EC
and is not intended for use as a safety device.
• 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.

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Specifications
Power
LVS100
• 19 to 230 V AC, 10 %, 50 to 60 Hz, 22 VA / 19 to 40 V DC, 10 %, 2 W
LVS200
• 19 to 230 V AC, +10 %, 50 to 60 Hz, 1.8 VA / 19 to 55 V DC, +10 %, 1.5 W
• 18 to 50 V DC 3-wire PNP
• 7 to 9 V DC (requires NAMUR switch amplifier) NAMUR IEC 60947-506, 2-wire
• 8/16 mA or 4 to 20 mA; 12.5 to 35 V DC, 2-wire
Performance
Measuring frequency
LVS100
• standard approx. 200 Hz
LVS200
• standard approx. 125 Hz
• liquid/solid interface version approx. 350 Hz
• enhanced sensitivity option approx. 90 Hz
Signal delay
• probe uncovered to covered approx. 1 second
• probe covered to uncovered approx. 1 to 2 seconds
Relay delay (DPDT version) (LVS200)
• adjustable up to 30 seconds
Sensitivity
• high or low, switch selectable
Minimum material density
LVS100
• standard version approx. 30 g/l (1.9 lb/ft3)
LVS200
• standard version approx. 20 g/l (1.2 lb/ft³)
• standard version with low density fork approx. 5 g/l (0.3 lb/ft³)
• liquid/solid interface version approx. 50 g/l (3 lb/ft³)
Note: Siemens Milltronics makes every attempt to ensure the accuracy of these
specifications but reserves the right to change them at any time.

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Maximum particle size
• LVS100 8 mm (0.32")
• LVS200 10 mm (0.39")
Alarm Output
LVS100
• version with 2 relays DPDT relay
relay fail-safe: high or low,
switch selectable
relay 8 A at 250 V AC,
non-inductive / relay 5 A at 30 V DC,
non-inductive
LVS200
• version with 1 relay SPDT relay
relay fail-safe: high or low,
switch selectable
relay 8 A at 250 V AC,
non-inductive / relay 5 A at 30 V DC,
non-inductive
• version with 2 relays DPDT relay
relay fail-safe: high or low,
switch selectable
relay 8 A at 250 V AC,
non-inductive / relay 5 A at 30 V DC,
non-inductive
• 3-wire PNP open collector: permanent load
maximum 0.4 A, short circuit and
overload protected;
turn-on voltage: max. 50 V (reverse
protection)
• mA output (build-up detection) 8/16 mA or 4 to 20 mA;
resolution 4 to 20 mA, ±0.1 mA

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Mechanical
Process Connection
LVS100
• thread R 1½" (BSPT); 1¼" NPT (Taper)
ANSI B 1.20.1
• thread material stainless steel 316 Ti (1.4581) or
304 (1.4301) for specific configurations
LVS200
• thread 1½” NPT (Taper), R 1½” (BSPT)
• thread material stainless steel 304 (1.4301) or
optional stainless steel 316 Ti (1.4571)/
316L (1.4404)
• flanges DN 100 PN6, DN 100 PN16,
2", 3", 4" ASME 150 lb flanges
• optional sliding bushing with R 2" (BSPT) or NPT (Taper) thread
• Tri-clamp 2" (DN50) ISO 2852
Tines
• tine material stainless steel 316Ti (1.4571)/ 316L (1.4581)
(PTFE1coated tines are available upon special request. Contact your local Siemens
representative for ordering information.)
Enclosure
• construction epoxy-coated aluminum
• conduit entry 2 x M20x1.5, or 2 x ½” NPT
• ingress protection Type 4X/NEMA 4X/IP66
Weight
• standard version, no extensions 2.0 kg (4.4 lb)
• solids/liquids, no extensions 1.9 kg (4.2 lb)
Environmental
• location indoor/outdoor
• altitude max. 2000 m (6562 ft)
• ambient temperature –40 to +60 °C (–40 to +140 °F)
• relative humidity 0 to 100% (suitable for outdoor: ingress
protection: Type 4X/NEMA 4X/IP66)
• overvoltage category II
• pollution degree 2
1. Polytetrafluoroethylene

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Process
Temperature
• All approvals except CSA Class II,
Group G: –40 to +150 °C (–40 to +302 °F)
• CSA Class II, Group G: –40 to +140 °C (–40 to +284 °F), CSA
temperature code T3B
• For applications with process temperature greater than +80 °C (+176 °F), the
maximum threaded bushing surface temperature must not exceed +80 °C (+176 °F)
• Maximum enclosure surface temperature (Category 2D): +120 °C (+248 °F) (ATEX
relevant)
• Maximum extension surface temperature (Category 1D): +150 °C (+302 °F) (ATEX
relevant)
Pressure
• max 10 bar, gauge (145 psi, gauge)
Approvals
LVS100
•CE
• ATEX II 1/2D
• IECEx t IIIC Da/Db
• CSA/FM Class II, III, Div. 1, Groups E, F, G
•C-TICK
LVS200
•FM/
CCSAUS General Purpose
•CE
• CSA/FM Dust Ignition Proof
• ATEX II 1/2D
• IECEx t IIIC Da/Db
• CSA/FM IS Class I, II, III, Div. 1, Groups A to G,
• FM Class I, AEx ia IIC, CSA Class 1, Ex ia IIC, available only with 7 to 9 V DC power
supply with NAMUR switch amplifier
• ATEX II 1G and 1/2G EEx ia IIC; ATEX II 1D and 1/2D, available only with 7 to 9 V DC
power supply with NAMUR switch amplifier
•C-TICK
Note: SITRANS LVS200 can be installed with an optional temperature isolator
extension. The isolator increases the distance of the electronics from the process
surface, thus allowing for a higher ambient temperature. See “Temperature Isolator
Option (LVS100/200)” on page 11. for more information.
Note: Pressure information for hazardous areas
The device construction allows over-pressure up to 10 bar. This pressure is allowed for
test purposes. The ATEX approval applies to over-pressure between –0.2 and 0.1 bar in
hazardous areas. For higher or lower pressures, the approval is not valid.