Pepperl+Fuchs VIM6 Series User manual
VIM6* Vibration Sensors
Manual
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 ndustry, published
by the Central Association of the Electrical ndustry (Zentralverband Elektrotechnik und Elek-
troindustrie (ZVE ) 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: +49 621 776 - 0
E-mail: [email protected]
North American Headquarters
Pepperl+Fuchs nc.
1600 Enterprise Parkway
Twinsburg, Ohio 44087
USA
Phone: +1 330 425-3555
E-mail: [email protected]
Asia Headquarters
Pepperl+Fuchs Pte. Ltd.
P+F Building
18 Ayer Rajah Crescent
Singapore 139942
Phone: +65 6779-9091
E-mail: [email protected]rl-fuchs.com
https://www.pepperl-fuchs.com
V M6* Vibration Sensors
Contents
2021-12
3
1 Introduction................................................................................................................ 4
1.1 ontent of this Document............................................................................. 4
1.2 Target Group, Personnel ............................................................................... 4
1.3 Symbols Used ................................................................................................ 5
1.4 Intended Use .................................................................................................. 6
1.5 General Safety Instructions.......................................................................... 6
2 Product Description .................................................................................................. 7
2.1 Use and Application ...................................................................................... 7
2.2 Vibration Monitoring...................................................................................... 8
2.2.1 Vibration Velocity Operating Range .................................................................................... 8
2.2.2 Frequency Response.......................................................................................................... 9
2.3 Accessories.................................................................................................. 10
3 Installation................................................................................................................ 11
3.1 Instructions for Mechanical and Electrical Installation ........................... 11
3.2 Mounting....................................................................................................... 13
3.3 Electrical Installation................................................................................... 14
4 Troubleshooting....................................................................................................... 18
4.1 What to Do in ase of a Fault ..................................................................... 18
5 Repair and Servicing............................................................................................... 19
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V M6* Vibration Sensors
ntroduction
1 Introduction
1.1 ontent 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:
•Present document
•nstruction manual
•Datasheet
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
•Additional documents
1.2 Target Group, Personnel
Responsibility for planning, assembly, commissioning, operation, maintenance, and dismount-
ing lies with the plant operator.
Only appropriately trained and qualified personnel may carry out mounting, installation, com-
missioning, 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.
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 nternet at www.pepperl-fuchs.com.
V M6* Vibration Sensors
ntroduction
2021-12
5
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. t is mandatory
that you observe these warning messages for your personal safety and in order to avoid prop-
erty damage.
Depending on the risk level, the warning messages are displayed in descending order as fol-
lows:
Informative Symbols
Action
This symbol indicates a paragraph with instructions. You are prompted to perform an action or
a sequence of actions.
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.
aution!
This symbol indicates a possible fault.
Non-observance could interrupt the device and any connected systems and plants, or result in
their complete failure.
Note
This symbol brings important information to your attention.
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V M6* Vibration Sensors
ntroduction
1.4 Intended Use
The vibration sensor is used exclusively for measuring mechanical vibrations on machines and
mechanical systems. Use is only permitted within the specifications stated in the datasheet.
Typical applications are monitoring fans, ventilators, electric motors, pumps, centrifuges, sepa-
rators, generators, turbines, and similar oscillating mechanical systems. Read through this
manual carefully. Familiarize yourself with the device before installing, mounting, or operating.
Some product versions are suitable for use in hazardous areas. The relevant national or inter-
national directives and the instruction manual for the product must be followed.
Always operate the device as described in these instructions to ensure that the device and con-
nected systems function correctly. The protection of operating personnel and the plant is guar-
anteed only if the device is operated in accordance with its intended use.
1.5 General safety instructions
Responsibility for planning, assembly, commissioning, operation, maintenance, and dismount-
ing lies with the plant operator.
nstallation and commissioning of all devices may be performed only by trained and qualified
personnel.
t is dangerous for the user to make changes and/or repairs. Additionally, doing so voids the
warranty and excludes the manufacturer from any liability. n the event of any serious errors,
stop using the device. Secure the device against unintended operation. To have the device
repaired, return it to your local Pepperl+Fuchs representative or your sales center.
Note
Disposal
Electronic waste is dangerous. When disposing of the equipment, observe the current statutory
requirements in the relevant country of use and local regulations.
V M6* Vibration Sensors
Product Description
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2 Product Description
2.1 Use and Application
Vibration sensors from the V M6* product family determine the vibration magnitude using the
root mean square (RMS) formation. This form of quadratic average determination or pre-filter-
ing allows precise statements to be made about trends relating to the status of the application.
Depending on the product versions, the vibration magnitude is determined either as the vibra-
tion acceleration (in g rms), as the vibration velocity (in mm/s), or as the vibration velocity and
temperature (in °C).
Some product versions are suitable for use in hazardous areas. The relevant national or inter-
national directives and the instruction manual for the product must be followed.
Vibration sensors from the V M6* product family always have two temperature readings: the
measuring head temperature T
M
and the ambient temperature T
A
.
•The measuring head temperature T
M
describes the maximum permissible temperature
range directly at the location where the sensor is mounted. The machine surface to be
monitored must therefore not exceed or fall below the specified measuring head tempera-
ture T
M
for the sensor.
•The ambient temperature T
A
describes the maximum permissible temperature range for
the ambient atmosphere in which the sensor is used.
The two temperatures are related as described below. The measuring head temperature T
M
is
always permitted to be a higher temperature than the corresponding ambient temperature T
a
in
the upper range. This means that the machine to be monitored is permitted to heat up to the
upper limit of T
M
and therefore contribute to the heating of the ambient atmosphere. However,
the resulting ambient temperature must not exceed the upper limit of T
A
.
Example
Temperature specifications:
•-35 °C ≤ T
M
≤ 125 °C
•-35 °C ≤ T
A
≤ 60 °C
The machine to be monitored must not exceed 125 °C at the location where the sensor is
mounted, while the ambient atmosphere in which the sensor is used must not exceed 60 °C.
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V M6* Vibration Sensors
Product Description
2.2 Vibration Monitoring
2.2.1 Vibration Velocity Operating Range
The operating range of the vibration velocity is not constant over the entire measuring range. t
always depends on the current frequency at which the vibration sensor is vibrating.
Essentially, the higher the current frequency, the lower the detectable vibration velocity. This
can lead to a significantly high frequency, which can then lead to the current operating range of
the sensor in this state being smaller than the specified measuring range.
The maximum detectable operating range can be derived from the maximum detectable accel-
eration. This is 16.5 g (161.8 m/s
2
) for the entire frequency range.
The maximum measurable vibration velocity results from the following physical correlation:
The following figure depicting the vibration monitoring shows the operating range, which is lim-
ited by the maximum measurable vibration velocity in mm/s depending on the frequency. The
area above the curve shows the operating range that cannot be measured when recording the
vibration velocity, because the frequency is too high. The sensor outputs the vibration velocity
value that can only just be detected.
Example for a version with a measuring range of 128 mm/s:
•Assumption: Application vibrates at 80 mm/s at 400 Hz
•Sensor output: 64 mm/s
This is the vibration velocity value that can only just be detected at this frequency.
Figure 2.1
1Frequency in Hz
2Vibration velocity in mm/s
3Operating range of vibration monitoring
The following applies to sinusoidal
vibrations:
V M6* Vibration Sensors
Product Description
2021-12
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Reading Example
2.2.2 Frequency Response
The typical frequency response of vibration monitoring for two frequency ranges is depicted
below.
Frequency Response: 10 Hz to 1000 Hz
The cut-off frequencies are 10 Hz and 1000 Hz with -3 dB damping.
Figure 2.2
Frequency (Hz) Maximum Measurable Vibration Velocity (mm/s)
250 103
400 64
1000 25
Table 2.1
1Frequency in Hz
2Gain in dB
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V M6* Vibration Sensors
Product Description
Frequency Response: 1 Hz to 1000 Hz
The frequency response was recorded using two reference sensors.
The cut-off frequencies are 1 Hz and 1000 Hz with -3 dB damping.
Figure 2.3
2.3 Accessories
Available Accessories
1Frequency in Hz
2Gain in dB
Note
Various accessories are available for the V M6* vibration sensors. These accessories are
available online at www.pepperl-fuchs.com, on the product page for the relevant V M6*
vibration sensor.
Accessories Use
Cordset for plug versions Electrical connection for plug versions
EMC adapter For insulating the sensor from the mounting point to protect
against sources of EMC interference.
Mounting adapter Adapter with different thread sizes for specific mounting
requirements at the mounting point.
Rubber protective sleeve Flexible plastic cover for additional protection of the sensor
against chemical and mechanical influences.
Flexible metal conduit Flexible metal conduit for additional protection of the internal
cable against chemical and mechanical influences.
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