Siemens SITRANS LVS100 Manual de usuario

SITRANS

Vibrating Switches

SITRANS LVS100/200

Operating Instructions 03/2011

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.

Qualified Personnel: This device/system may only be set up and operated in conjunction with this

manual. Qualified personnel are only authorized to install and operate this equipment in accordance with

established safety practices and standards.

Unit Repair and Excluded Liability:

•The user is responsible for all changes and repairs made to the device by the user or the user’s

agent.

•All new components are to be provided by Siemens Milltronics Process Instruments.

•Restrict repair to faulty components only.

•Do not reuse faulty components.

Warning: Cardboard shipping package provides limited humidity and moisture protection. This product

can only function properly and safely if it is correctly transported, stored, installed, set up, operated, and

maintained.

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.

Note: Always use product in accordance with specifications.

Reserved

Disclaimer of Liability

This document is available in bound version and in

electronic version. 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.

MILLTRONICS®is a registered trademark of Siemens Milltronics Process Instruments.

Contact SMPI Technical Publications European Authorized Representative

at the following address:

Technical Publications Siemens AG

Siemens AG Industry Sector

Siemens Milltronics Process Instruments 76181 Karlsruhe

1954 Technology Drive, P.O. Box 4225 Deutschland

Peterborough, Ontario, Canada, K9J 7B1

Email: techpubs.smpi@siemens.com

•For a selection of Siemens Milltronics level measurement manuals, go to:

www. siemens.com/processautomation. Under Process Instrumentation, select

Level

Measurement

and then go to the manual archive listed under the product family.

•For a selection of Siemens Milltronics weighing manuals, go to:

www. siemens.com/processautomation. Under Weighing Technology, select

Continuous

Weighing Systems

and then go to the manual archive listed under the product family.

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

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.

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.

Manual

Product Description

(Label on product: yellow background.)

Caution: refer to accompanying documents (manual) for details.

Earth (ground) Terminal

Protective Conductor Terminal

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 20 000 mm

(787"), 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 23

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 options available.

• Suitable for high or low density material

LVS100 standard version: 60 g/l (3.8 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, 8 VA / 19 to 50 V DC, +10 %, 2 W

LVS200

• 19 to 230 V AC, +10 %, 50 to 60 Hz, 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. 60 g/l (3.8 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)

• 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

Tines

• tine material stainless steel 316Ti (1.4571)

(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)

• installation category III

• 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): +90 °C (+194 °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

• 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

• 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 (LVS200)” on page 10. 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.

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Installation

Mounting

Notes:

• Installation shall be performed by qualified personnel and in accordance with local

governing regulations.

• Do not bend, shorten or extend the tines.

• Position the tines using a 50 mm open-end wrench when installing the process

connection (do not turn the housing). When side mounting SITRANS LVS100/200,

position the tines vertically, with the tine orientation marking facing up or down.

• In pressure applications, use PTFE tape or other appropriate sealant to seal

tapered threaded connections.

• After mounting, ensure the cable entries point downward to prevent water entering

the housing.

• For the SITRANS LVS100/200 extended model, the torque due to material loading at

the mounting point may not exceed 250 Nm.

• Mounting torque for the 1½" thread connection may not exceed 80 Nm.

WARNINGS:

LVS100 and LVS200:

• This product is designated as a Pressure Accessory per Directive

97 / 23 / EC and is not intended for use as a safety device.

• Improper installation may result in loss of process pressure.

• To install devices in hazardous locations, observe all valid installation

regulations.

• For ATEX installations, observe the requirements of EN 50281-1-2

regarding dust deposits and temperatures. Before opening the device

lid, ensure there are no deposits present.

• Do not remove lid while circuits are live.

• Install the SITRANS LVS100/200 so mechanical friction or impact does

not cause sparks between the aluminium enclosure and steel vessel.

LVS200:

• Installation in Zone 0 (electronics: NAMUR): The intrinsic safe supply

circuit must have galvanic isolation to a non- intrinsically safe area.

Otherwise, provide protection for the device against lightning strikes

(see EN 60079-14).

• Power supply (electronics: NAMUR): Intrinsically safe protection is

only valid when connected to a certified intrinsically safe power

supply.

• For the LVS Pipe extended and cable extended models with Namur

electronics for gas hazardous approvals: When mounting the units on a

vessel lid that separates Zone 0 (Cat. 1G) from Zone 1 (Cat 2G), the units

have no safe separation between Zone 0 and Zone 1. Gas can pass

from Zone 0 through the unit to Zone 1.

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