Pepperl+Fuchs LVL-M4 Reference guide

ISO9001
LVL-M4
Vibration Limit Switch
Brief Instructions

With regard to the supply of products, the current issue of the following document is applicable:
The General Terms of Delivery for Products and Services of the Electrical Industry, published by the Central
Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most
recent version as well as the supplementary clause: "Expanded reservation of proprietorship"
Worldwide
Pepperl+Fuchs Group
Lilienthalstr. 200
68307 Mannheim
Germany
Phone: [phone] - 0
E-mail: [e-mail]
North American Headquarters
Pepperl+Fuchs Inc.
1600 Enterprise Parkway
Twinsburg, Ohio 44087
USA
Phone: [phone]
E-mail: [email protected]
Asia Headquarters
Pepperl+Fuchs Pte. Ltd.
P+F Building
18 Ayer Rajah Crescent
Singapore 139942
Phone: [phone]
E-mail: [email protected]erl-fuchs.com
https://www.pepperl-fuchs.com

Vibration Limit Switch LVL-M4
Contents
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1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Content of this Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Registered Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Basic Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Requirements for Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Workplace Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Operational Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Product Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6 Functional Safety SIL (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.7 IT Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Incoming Acceptance and Product Identification . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Incoming Acceptance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Product Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Storage and Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Mounting Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Mounting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3 Sliding Sleeves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.4 Post-Mounting Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1 Connection Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2 Connecting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.3 Post-Connection Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6 Operation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.1 Overview of Operation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

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Vibration Limit Switch LVL-M4
Contents
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.1 Function Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.2 Functional Test Using the Button on the Electronic Insert . . . . . . . . . . 36
7.3 Functional Test of the Electronic Switch with a Test Magnet . . . . . . . . 37
7.4 Switching on the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.5 Establishing a Connection via P+F Level App . . . . . . . . . . . . . . . . . . . . 37
7.6 Further Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Vibration Limit Switch LVL-M4
Introduction
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1 Introduction
1.1 Content of this Document
This document contains information that you need in order to use your product throughout
the applicable stages of the product life cycle. These can include the following:
•Product identification
•Delivery, transport, and storage
•Mounting and installation
•Commissioning and operation
•Maintenance and repair
•Troubleshooting
•Dismounting
•Disposal
The documentation consists of the following parts:
•Datasheet – product overview
The datasheet contains the essential technical data for product selection.
•Technical information (TI) – planning aid
The document contains all the technical data on the device and provides an overview
of the accessories and other products that can be ordered for the device.
•Manual (BA) – complete information
The manual contains all information from incoming acceptance to disposal.
•Brief instructions (KA), present document – guide that takes you quickly to the 1st
measured value
The brief instructions contain all the essential information from incoming acceptance
to initial commissioning.
•Instruction manual (SI) – safety-relevant document
Depending on the approval, the required instruction manuals are supplied
with the device.
Additionally, the following parts may belong to the documentation, if applicable:
•EU-type examination certificate
•EU declaration of conformity
•Attestation of conformity
•Certificates
•Control drawings
•Functional safety manual
•Additional documents
Note
This document does not substitute the instruction manual.
Note
For full information on the product, refer to the instruction manual and further documentation
on the Internet at www.pepperl-fuchs.com.
Note
For specific device information such as the year of construction, scan the QR code
on the device. As an alternative, enter the serial number in the serial number search
at www.pepperl-fuchs.com.

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Vibration Limit Switch LVL-M4
Introduction
1.2 Safety Information
Target Group, Personnel
Responsibility for planning, assembly, commissioning, operation, maintenance,
and dismounting lies with the plant operator.
Only appropriately trained and qualified personnel may carry out mounting, installation,
commissioning, operation, maintenance, and dismounting of the product. The personnel must
have read and understood the instruction manual and the further documentation.
Prior to using the product make yourself familiar with it. Read the document carefully.
1.3 Symbols Used
This document contains symbols for the identification of warning messages and
of informative messages.
Warning Messages
You will find warning messages, whenever dangers may arise from your actions.
It is mandatory that you observe these warning messages for your personal safety and in order
to avoid property damage.
Depending on the risk level, the warning messages are displayed in descending order
as follows:
Danger!
This symbol indicates an imminent danger.
Non-observance will result in personal injury or death.
Warning!
This symbol indicates a possible fault or danger.
Non-observance may cause personal injury or serious property damage.
Caution!
This symbol indicates a possible fault.
Non-observance could interrupt the device and any connected systems and plants,
or result in their complete failure.

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Introduction
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Informative Symbols
Action
This symbol indicates a paragraph with instructions. You are prompted to perform an action
or a sequence of actions.
▶ Reference to another section or to further documentation
Permitted
Procedures, processes or actions that are permitted.
Forbidden
Procedures, processes or actions that are forbidden.
Electrical Symbols
Ground connection
Grounded clamp, which is grounded via a grounding system.
Protective earth (PE)
Ground terminals, which must be grounded prior to establishing any other connections.
The ground terminals are located on the inside and outside of the device.
Tool Symbols
Flat-blade screwdriver
Allen key
Open-ended wrench
Symbols in Graphics
1, 2, 3 ... Item numbers
A, B, C, ... Views
Explosion-hazardous area
Non-explosion-hazardous area
Note
This symbol brings important information to your attention.
)
*
-
.

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Vibration Limit Switch LVL-M4
Introduction
1.4 Registered Trademarks
Android®
Android, Google Play and the Google Play logo are trademarks of Google Inc.
Apple®
Apple, the Apple logo, iPhone, and iPod touch are trademarks of Apple Inc., registered
in the U.S. and other countries. App Store is a service mark of Apple Inc.
Bluetooth®
The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth® SIG,
Inc. and any use of such marks by Pepperl+Fuchs is under license. Other trademarks and
trade names are those of their respective owners.

Vibration Limit Switch LVL-M4
Basic Safety Instructions
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2 Basic Safety Instructions
2.1 Requirements for Personnel
The personnel must fulfill the following requirements to carry out the necessary tasks,
e. g. commissioning and maintenance:
•Trained, qualified specialists must have a relevant qualification for the specific function
•and task
•Are authorized by the plant owner/operator
•Are familiar with federal/national regulations
•Must have read and understood the instructions in the manual
and supplementary documentation
•Follow instructions and comply with conditions
2.2 Intended Use
•Only use the device for liquids.
•Improper use can pose hazards.
•Ensure that the device is free of defects while it is in operation.
•Use the device only for media to which the process-wetted materials have an adequate
level of resistance.
•Do not exceed or drop below the limit values for the device, see manual
and technical information TI01403O/98/EN.
2.2.1 Incorrect Use
The manufacturer is not liable for damage caused by improper or non-intended use.
Residual Risks
Due to heat transfer from the process, the temperature of the electronics housing
and the assemblies contained therein may rise to 80 °C (176 °F) during operation.
Danger of burns from contact with surfaces!
•If necessary, ensure protection against contact to prevent burns.
For requirements concerning functional safety in accordance with IEC 61508,
the associated SIL documentation must be observed.
2.3 Workplace Safety
For work on and with the device:
•Wear the required personal protective equipment according to federal/national
regulations.

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Vibration Limit Switch LVL-M4
Basic Safety Instructions
2.4 Operational Safety
Risk of injury!
•Operate the device only if it is in proper technical condition, free from errors and faults.
•The operator is responsible for ensuring failure-free operation of the device.
Modifications to the Device
Unauthorized modifications to the device are not permitted and can lead
to unforeseeable dangers.
•If, despite this, modifications are required, consult with Pepperl+Fuchs.
Repair
To ensure continued operational safety and reliability:
•Only perform repair work on the device if this is expressly permitted.
•Observe federal/national regulations pertaining to the repair of an electrical device.
•Use original spare parts and accessories from Pepperl+Fuchs only.
Hazardous Area
To eliminate danger to persons or the facility when the device is used in the hazardous area
(e. g. explosion protection):
•Check the nameplate to verify whether the ordered device can be used for the intended
purpose in the hazardous area.
•Observe the specifications in the separate supplementary documentation that
is an integral part of this manual.
2.5 Product Safety
This device is designed in accordance with good engineering practice to meet state-of-the-art
safety requirements, has been tested, and left the factory in a condition in which it is safe
to operate.
The device meets general safety standards and legal requirements. It also complies
with the EU directives listed in the device-specific EU Declaration of Conformity.
Pepperl+Fuchs confirms this by affixing the CE mark to the device.
2.6 Functional Safety SIL (Optional)
The functional safety manual must be strictly observed for devices that are used
in functional safety applications.
2.7 IT Security
We only provide a warranty if the device is installed and used as described
in the instruction manuals. The device has safety mechanisms integrated to prevent
users from inadvertently changing settings.
Provide additional protection for the device and data transfer to/from the device
•IT security measures defined in the plant owner/operator's own security policy
must be implemented by plant owners/operators themselves.

Vibration Limit Switch LVL-M4
Incoming Acceptance and Product Identification
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3 Incoming Acceptance and Product Identification
3.1 Incoming Acceptance
Check the following during goods acceptance:
□Are the order codes on the delivery note and the product sticker identical?
□Are the goods undamaged?
□Do the nameplate data match the ordering information on the delivery note?
□If required (see nameplate): Are the Safety Instructions, e. g. SI, provided?
3.2 Product Identification
The device can be identified in the following ways:
•Nameplate data
•Extended order code with breakdown of the device features on the delivery note
3.2.1 Nameplate
The information that is required by law and is relevant to the device is shown
on the nameplate, e. g.:
•Manufacturer identification
•Order number, extended order code, serial number
•Technical data, degree of protection
•Firmware version, hardware version
•Approval-related information, reference to instruction manuals (SI)
•DataMatrix code (information about the device)
3.2.2 Electronic Insert
3.2.3 Manufacturer Address
Place of manufacture: See nameplate.
Note
If one of these conditions is not met, please contact the manufacturer's sales office.
Note
Identify the electronic insert via the order code on the nameplate.
Pepperl+Fuchs Group
Lilienthalstraße 200, 68307 Mannheim, Germany
Internet: www.pepperl-fuchs.com

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Vibration Limit Switch LVL-M4
Incoming Acceptance and Product Identification
3.3 Storage and Transport
3.3.1 Storage Conditions
Use original packaging.
3.3.2 Storage Temperature
•-40 to +80 °C (-40 to +176 °F)
•optional: -50 °C (-58 °F), -60 °C (-76 °F)
3.3.3 Device Transport
Transporting the Device
1. Transport the device to the measuring point in the original packaging.
2. Hold the device by the housing, temperature spacer, flange or extension pipe.
3. Do not bend, shorten or extend the tuning fork.
Figure 3.1 Handling the device during transportation

Vibration Limit Switch LVL-M4
Mounting
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4 Mounting
Mounting Instructions
•Any orientation for device with short pipe up to approx. 500 mm (19.7 inch)
•Vertical orientation for device with long pipe
•Minimum distance between the fork tip and the tank wall or pipe wall: 10 mm (0.39 inch)
Figure 4.1 Installation examples for a vessel, tank or pipe
Warning!
Loss of protection rating if the device is opened in a wet environment.
Only open the device in a dry environment!
1Vessel insulation (example with temperature spacer/pressure-tight feedthrough)
If process temperatures are high, the device should be included in a vessel insulation
system to prevent the electronics from heating as a result of thermal radiation
or convection.
1

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Vibration Limit Switch LVL-M4
Mounting
4.1 Mounting Requirements
4.1.1 Take Switch Point into Consideration
The following are typical switch points, depending on the orientation of the device:
water +23 °C (+73 °F)
Figure 4.2 Typical switch points, unit of measurement mm (inch)
4.1.2 Take Viscosity into Consideration
Low Viscosity
Figure 4.3 Installation example for low-viscosity liquids, unit of measurement mm (inch)
Note
Minimum distance between the fork tip and the tank wall or pipe wall: 10 mm (0.39 inch)
AInstallation from above
BInstallation from below
CInstallation from the side
DSwitch point
)5.0(31~
)61.0(4~
)94.0(5.21~
D
CBA
D
D
Note
Viscosity values
•Low viscosity : < 2000 mPa·s
•High viscosity: > 2000 to 10000 mPa·s
Note
Low viscosity, e. g. water: < 2000 mPa·s
It is permitted to position the tuning fork within the installation socket.
> 25 (0.98)

Vibration Limit Switch LVL-M4
Mounting
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High Viscosity
Figure 4.4 Installation example for a highly viscous liquid, unit of measurement mm (inch)
4.1.3 Avoid Buildup
•Use short installation sockets to ensure that the turning fork can project freely
into the vessel.
•Leave sufficient distance between the buildup expected on the tank wall
and the tuning fork.
Figure 4.5 Installation examples for a highly viscous process medium
Note
Highly viscous liquids may cause switching delays.
•Make sure that the liquid can run off the tuning fork easily.
•Deburr the socket surface.
Note
High viscosity, e.g. viscous oils: < 10000 mPa·s
The tuning fork must be located outside the installation socket!
> 40 (1.57)

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Vibration Limit Switch LVL-M4
Mounting
4.1.4 Take Clearance into Consideration
Allow sufficient space outside the tank for mounting, connection and settings involving
the electronic insert.
Figure 4.6 Take clearance into consideration
4.1.5 Support the Device
Support the device in the event of severe dynamic load. Maximum lateral loading capacity
of the pipe extensions and sensors: 75 Nm (55 lbf foot).
Figure 4.7 Examples of support in the event of dynamic load

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Mounting
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4.1.6 Weld-in Adapter with Leakage Hole
Weld in the weld-in adapter in such a way that the leakage hole is pointing downwards.
This enables any leaks to be detected quickly.
Figure 4.8 Weld-in adapter with leakage hole
4.2 Mounting the Device
Required Tools
•Open-ended wrench for sensor installation
•Allen key for housing locking screw
4.2.1 Installation
Align the Tuning Fork using the Marking
The tuning fork can be aligned using the marking. Medium can thus run off easily and buildup
is avoided.
Markings may include the following:
•Material specification, thread description or circle on the hexagonal nut
or on the weld-in adapter
•The II symbol on the back of the flange or Tri-Clamp
Figure 4.9 Markings to align the tuning fork
/
/*

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Vibration Limit Switch LVL-M4
Mounting
Installing in pipes
•Flow velocities up to 5 m/s at a viscosity of 1 mPa·s and density 1 g/cm3 (SGU).
Check for correct functioning in the event of other process medium conditions.
•The flow will not be significantly impeded if the tuning fork is correctly aligned
and the marking is pointing in the direction of flow.
•The marking is visible when installed.
Figure 4.10 Installation in pipes (take fork position and marking into consideration)
Screwing in the Device
•Turn by the hex bolt only, 15 to 30 Nm (11 to 22 lbf foot)
•Do not turn at the housing!
Figure 4.11 Screwing in the device
2.
1.

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Mounting
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Aligning the Cable Entry
Aligning the Cable Entry
1. Loosen the external locking screw (maximum 1.5 turns).
2. Turn the housing, align the cable entry.
Avoid moisture in the housing, provide a loop to allow moisture to drain off.
3. Tighten the external locking screw.
Figure 4.12 Housing with external locking screw
4.3 Sliding Sleeves
▶ For more information see manual.
4.4 Post-Mounting Check
□Is the device undamaged (visual inspection)?
□Does the device conform to the measuring point specifications?
For example:
•Process temperature
•Process pressure
•Ambient temperature
•Measuring range
□Are the measuring point number and labeling correct (visual inspection)?
□Is the device adequately protected against precipitation and direct sunlight?
□Is the device properly secured?
Note
The locking screw is not tightened when the device is delivered.
1. 3.
43.5 Nm
2.

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Vibration Limit Switch LVL-M4
Electrical Connection
5 Electrical Connection
Required Tools
•Screwdriver for electrical connection
•Allen key for screw of cover lock
5.1 Connection Requirements
5.1.1 Cover with Securing Screw
In the case of devices for use in the hazardous area with a certain type of protection,
the cover is sealed by a securing screw.
•Open the cover: Slacken the screw of the cover lock with a maximum of 2 turns
so that the screw does not fall out. Fit the cover and check the cover seal.
•Close the cover: Screw the cover securely onto the housing, making sure
that the securing screw is positioned correctly. There should not be any gap between
the cover and housing.
Figure 5.1 Cover with securing screw
5.1.2
5.1.3 Connecting Protective Earth (PE)
The protective earth conductor at the device must only be connected if the device's operating
voltage is ≥ 35 V DC or ≥ 16 V ACeff.
When the device is used in hazardous areas, it must always be included in the potential
equalization of the system, irrespective of the operating voltage.
Note
If the securing screw is not positioned correctly, the cover cannot provide secure sealing.
2 x 0.7 Nm
4
Note
The plastic housing is available with or without an external protective earth connection (PE).
If the operating voltage of the electronic insert is < 35 V, the plastic housing has no external
protective earth connection.