Siemens SITRANS LVL200E Instruction Manual

Instruction Manual · September 2010

SITRANS LVL200E

Contents

1 About this document

1.1 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

1.2 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

4

1.3 Symbolism used. . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

2 For your safety

2.1 Authorised personnel . . . . . . . . . . . . . . . . . . . . . . . .

5

2.2 Appropriate use . . . . . . . . . . . . . . . . . . . . . . . . . . ..

5

2.3 Warning about misuse . . . . . . . . . . . . . . . . . . . . . . .

5

2.4 General safety instructions . . . . . . . . . . . . . . . . . . . .

5

2.5 Safety label on the instrument . . . . . . . . . . . . . . . . . .

6

2.6 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6

2.7 SIL conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6

2.8 Safety instructions for Ex areas . . . . . . . . . . . . . . . . .

6

3 Product description

3.1 Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

3.2 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . .

8

3.3 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

8

3.4 Storage and transport . . . . . . . . . . . . . . . . . . . . . . .

9

4 Mounting

4.1 General instructions . . . . . . . . . . . . . . . . . . . . . . . ..

10

4.2 Mounting instructions . . . . . . . . . . . . . . . . . . . . . . . .

14

5 Connecting to power supply

5.1 Preparing the connection . . . . . . . . . . . . . . . . . . . . .

17

5.2 Connection procedure. . . . . . . . . . . . . . . . . . . . . . . .

17

5.3 Wiring plan, single chamber housing . . . . . . . . . . . . .

18

6 Set up

6.1 In general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

20

6.2 Adjustment elements . . . . . . . . . . . . . . . . . . . . . . . .

20

6.3 Functional chart . . . . . . . . . . . . . . . . . . . . . . . . . . ..

21

7 Maintenance and fault rectification

7.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23

7.2 Rectify faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23

7.3 Exchange of the electronics . . . . . . . . . . . . . . . . . ..

24

7.4 Instrument repair . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

8 Dismounting

8.1 Dismounting steps . . . . . . . . . . . . . . . . . . . . . . . . . .

26

8.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26

9 Supplement

9.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

27

9.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

34

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Contents

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Supplementary documentation

Information:

Supplementary documents appropriate to the ordered version come
with the delivery. You can find them listed in chapter "Product

description".

Instructions manuals for accessories and replacement parts

Tip:

To ensure reliable setup and operation of your SITRANS LVL200E, we
offer accessories and replacement parts. The corresponding doc­umentations are:

l 33997 - Electronics module for SITRANS LVL200
l Operating instructions manual - Lock fitting for SITRANS LVL200E

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Contents

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1 About this document

1.1 Function

This operating instructions manual provides all the information you
need for mounting, connection and setup as well as important
instructions for maintenance and fault rectification. Please read this
information before putting the instrument into operation and keep this
manual accessible in the immediate vicinity of the device.

1.2 Target group

This operating instructions manual is directed to trained qualified
personnel. The contents of this manual should be made available to
these personnel and put into practice by them.

1.3 Symbolism used

Information, tip, note

This symbol indicates helpful additional information.

Caution: If this warning is ignored, faults or malfunctions can
result.
Warning: If this warning is ignored, injury to persons and/or serious
damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons and/or
destruction of the instrument can result.

Ex applications

This symbol indicates special instructions for Ex applications.

l List

The dot set in front indicates a list with no implied sequence.

à Action

This arrow indicates a single action.

1 Sequence

Numbers set in front indicate successive steps in a procedure.

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1 About this document

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2 For your safety

2.1 Authorised personnel

All operations described in this operating instructions manual must be
carried out only by trained specialist personnel authorised by the plant
operator.

During work on and with the device the required personal protective
equipment must always be worn.

2.2 Appropriate use

The SITRANS LVL200E is a sensor for level detection.

You can find detailed information on the application range in chapter

"Product description".

Operational reliability is ensured only if the instrument is properly used
according to the specifications in the operating instructions manual as
well as possible supplementary instructions.

For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbitrary
conversions or modifications are explicitly forbidden.

2.3 Warning about misuse

Inappropriate or incorrect use of the instrument can give rise to
application-specific hazards, e.g. vessel overfill or damage to system
components through incorrect mounting or adjustment.

2.4 General safety instructions

This is a high-tech instrument requiring the strict observance of
standard regulations and guidelines. The user must take note of the
safety instructions in this operating instructions manual, the country­specific installation standards as well as all prevailing safety
regulations and accident prevention rules.

The instrument must only be operated in a technically flawless and
reliable condition. The operator is responsible for trouble-free
operation of the instrument.

During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new
regulations.

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2 For your safety

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2.5 Safety label on the instrument

The safety approval markings and safety tips on the device must be
observed.

2.6 CE conformity

This device fulfills the legal requirements of the applicable EC
guidelines. By attaching the CE mark, we provide confirmation of
successful testing.

2.7 SIL conformity

SITRANS LVL200E fulfills the requirements to functional safety
according to IEC 61508/IEC 61511. You find further information in the
Safety Manual "SITRANS LVL200".

2.8 Safety instructions for Ex areas

Please note the Ex-specific safety information for installation and
operation in Ex areas. These safety instructions are part of the
operating instructions manual and come with the Ex-approved
instruments.

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2 For your safety

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3 Product description

3.1 Structure

The scope of delivery encompasses:

l Point level sensor SITRANS LVL200E
l Documentation

- this operating instructions manual

- Safety Manual "Functional safety according to IEC 61508/

IEC 61511 (SIL)"

- Ex-specific "Safety instructions" (with Ex versions)

- if necessary, further certificates

The SITRANS LVL200E consists of the following components:

l Housing cover
l Housing with electronics
l Process fitting with tuning fork

1

2

3

Fig. 1: SITRANS LVL200E
1 Housing cover

2 Housing with electronics
3 Process fitting

The type label contains the most important data for identification and
use of the instrument:

l Article number
l Serial number
l Technical data
l Article numbers, documentation

Scope of delivery

Constituent parts

Type label

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3 Product description

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3.2 Principle of operation

SITRANS LVL200E is a point level sensor with tuning fork for level
detection.

It is designed for industrial use in all areas of process technology and
can be used in liquids.

Typical applications are overfill and dry run protection. The small
tuning fork allows use in all kinds of tanks and vessels. Thanks to its
simple and rugged measuring system, SITRANS LVL200E is virtually
unaffected by the chemical and physical properties of the liquid.

It functions even under difficult conditions such as turbulence, air
bubbles, foam generation, buildup, strong external vibration or
changing products.

Fault monitoring

The electronics module of SITRANS LVL200E continuously monitors
via frequency evaluation the following criteria:

l Strong corrosion or damage on the tuning fork
l Loss of vibration
l Line break to the piezo drive

If a malfunction is detected or in case of power failure, the electronics
takes on a defined switching condition, i.e. the contactless electronic
switch opens (safe condition).

The tuning fork is piezoelectrically energised and vibrates at its
mechanical resonance frequency of approx. 1200 Hz. The piezos are
fixed mechanically and are hence not subject to temperature shock
limitations. The frequency changes when the tuning fork is covered by
the medium. This change is detected by the integrated electronics
module and converted into a switching command.

SITRANS LVL200E is a compact instrument, i.e. it can be operated
without external evaluation system. The integrated electronics
evaluates the level signal and outputs a switching signal. With this
switching signal, a connected device can be operated directly (e.g. a
warning system, a PLC, a pump etc.).

The data for power supply are specified in chapter "Technical data".

3.3 Operation

With the factory setting, products with a density > 0.07 g/cm³
(0.025 lbs/in³) can be measured. The instrument can be adapted if
products with lower density should be measured.

On the electronics module you will find the following indicating and
adjustment elements:

l Signal lamp for indication of the switching condition (green/red)
l DIL switch for sensitivity adjustment
l Mode adjustment for selection of the switching condition (A/B)

Application area

Functional principle

Voltage supply

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3.4 Storage and transport

Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
according to DIN EN 24180.

The packaging of standard instruments consists of environment­friendly, recyclable cardboard. In addition, the sensor can be provided
with a protective cover of ABS. For sp ecial versions PE foam or PE foil
is also used. Dispose of the packaging material via specialised
recycling companies.

Transport must be carried out under consideration of the notes on the
transport packaging. N onobservance of these instructions can cause
damage to the device.

The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or
concealed defects must be appropriately dealt with.

Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.

Unless otherwise indicated, the packages must be stored only under
the following conditions:

l Not in the open
l Dry and dust free
l Not exposed to corrosive media
l Protected against solar radiation
l Avoiding mechanical shock and vibration

l Storage and transport temperature see chapter "Supplement -

Technical data - Ambient conditions"

l Relative humidity 20 … 85 %

Packaging

Transport

Transport inspection

Storage

Storage and transport

temperature

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4 Mounting

4.1 General instructions

Make sure that all parts of the instrument exposed to the process, in
particular the sensor element, process seal and process fitting, are
suitable for the existing process conditions. These include above all
the process pressure, process temperature as well as the chemical
properties of the medium.

You can find the specifications in chapter "Technical data" or on the
type label.

In general, SITRANS LVL200E can be installed in any position. The
instrument simply has to be mounted in such a way that the tuning fork
is at the height of the desired switching point.

The tuning fork has lateral markings (notches) that indicate the
switching point with vertical mounting. The switching point refers to
water with the basic setting of the sensitivity switch ≥ 0.7 g/cm³
(0.025 lbs/in³). When mounting SITRANS LVL200E, make sure that
this marking is at the height of the requested switching point. Keep in
mind that the switching point of the instrument is shifted if the medium
has a density other than water - water 1 g/cm³ (0.036 lbs/in³). For
products < 0.7 g/cm³ (0.025 lbs/in³) and > 0.5 g/cm³ (0.018 lbs/in³) the
density switch must be set to ≥ 0.5 g/cm³.

Keep in mind that foams with a density > 0.45 g/cm³ (0.016 lbs/in³) are
detected by the sensor. This can cause faulty switchings particulary
when used as dry run protection system.

Suitability for the proc­ess conditions

Switching point

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4 Mounting

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2

3

1

4

Fig. 2: Vertical mounting
1 Switching point approx. 13 mm (0.51 in)

2 Switching point with lower density
3 Switching point with higher density
4 Switching point approx. 27 mm (1.06 in)

1

Fig. 3: Horizontal mounting
1 Switching point

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4 Mounting

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1

2

Fig. 4: Horizontal installation (recommended installation position, especially for
adhesive products)

1 Switching point
2 Marking with screwed version on top, with flange versions directed to the

flange holes

With flange versions, the fork is directed as follows to the flange holes.

Fig. 5: Fork position with flange versions

Use the recommended cables (see chapter "Connecting to power
supply") and tighten the cable gland.

You can give your SITRANS LVL200E additional protection against
moisture penetration by leading the connection cable downward in
front of the cable entry. Rain and condensation water can thus drain
off. This applies mainly to outdoor mounting as well as installation in
areas where high humidity is expected (e.g. through cleaning
processes) or on cooled or heated vessels.

Moisture

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4 Mounting

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