holthausen
elektronik GmbH
User Manual (Translation of the original instructions)
Picture 1: ESW-Mini with a base plate
Electronic Vibration Monitoring Unit
ESW®-Mini (hol550)
date: December 21, 2017
technical modification possible
holthausen elektronik GmbH is certified according to DIN EN ISO 9001:2015.
ESW® is a registered trademark of holthausen elektronik GmbH, Wevelinghoven 38, 41334 Nettetal
holthausen elektronik GmbH Phone: +49 (0) 21 53 - 40 08 info@holthausen-elektronik.de
Wevelinghoven 38 Fax: +49 (0) 21 53 - 89 99 4 www.holthausen-elektronik.de
41334 Nettetal
Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
ESW®-Mini (hol550)
Table of contents:
1. Generally Basic safety-indications ........................................................................ page 3
1.1 Symbols used in this document.. ................................................................ page 4
2. Performance specification ..................................................................................... page 5
2.1 The Problem ................................................................................................ page 5
2.2 Application Area .......................................................................................... page 5
2.3 Foreseeable Misue ...................................................................................... page 5
2.4 Special Features .......................................................................................... page 5
2.5 Options ex factory ........................................................................................ page 6
3. Description of the Device ...................................................................................... page 7
3.1 Display and Operating Elements ................................................................ page 7
4. Steps involved for use of the device .................................................................... page 8
4.1 Identifying the device .................................................................................. page 8
4.2 Packing, Dispatch and Storage ................................................................. page 8
4.3 Installing the Device .................................................................................. page 9
4.4 Connecting the Cable ................................................................................ page 10
4.5 Opening and Closing the Measurement Device ....................................... page 10
4.6 Starting Up the Device .............................................................................. page 10
4.7 Ground connection settings( ST2: S1 and S2) ......................................... page 11
4.8 Setting the Limit value ............................................................................... page 11
4.9 Set measuring range (ST2: S6 and S7) .................................................... page 12
4.10 Set analog output (ST2: S5) ..................................................................... page 13
4.11 Set alarm memory function and trigger reset function (ST2:S4) .............. page 13
4.12 Normal use of the device .......................................................................... page 13
4.13 Removal of the device .............................................................................. page 14
5. Technical data ....................................................................................................... page 15
5.1 Device dimensions ...................................................................................... page 15
5.2 Drilling tempate ........................................................................................... page 16
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
ESW®-Mini (hol550)
Important information
These operation instructions are to be read through completely and carefully heeded before
starting the device. Failure to heed or adhere can result in claims on manufacturer’s liability
becoming null and void for damages ensuing there from.
Manual action of any manner on the device – with the exception of proper procedures and those
described in these operation instructions – lead to forfeit of guarantee and exclusion from
liability.
The device is solely intended for the usage as described below. It is particularly not intended for
the direct or indirect protection of persons.
holthausen elektronik GmbH assumes no liability whatsoever as regards suitability for some
specific purpose.
If any question should remain open, please never hesitate to contact us.
holthausen elektronik GmbH
Wevelinghoven 38, 41334 Nettetal
Phone: +49 (0) 21 53 - 40 08, Fax: +49 (0) 21 53 - 8 99 94
e-mail: info@holthausen-elektronik.de
1. Generally basical safety-instrucations
Do not use this device as the sole monitoring device in situations where failure of the device can
result in damage to goods or personal injury.
To achieve the desired results, make sure that the device and its technical data are suitable for
use with the device/equipment and parameters which you wish to monitor.
.
The sensor is sensitive to shock. A downfall out lower height to a hard substratum can destroy
the sensor.
The location where the sensor is installed and the method used for installing the sensor have a
decisive impact on the quality of the sensor signal. The sensor may only be installed by
appropriately qualified and instructed staff.
Electrical connections must be made by appropriately skilled staff. Connection errors can lead
to malfunctioning or failure of, or irreparable damage to, the sensor and the electronics.
The ESW®-Mini should not be used on machines with a very energetic high-frequency solidborne. Through resonance apparitions in the sensor, the device can indicate a much too great
or too small value.
Powerful noise sources for instance inverters, in direct closeness of the sensor, electronics or
cabling, can result in faulty behaving of the apparatus.
Potential differences and balance currents in the mass guidance can result in faulty behaving
too.
The connection cable is resistant against many but not every type of chemicals. A defective
cable can allow chemicals to enter the housing and iireparable damage the electronic, in which
case the device would no longer work. The conditions from the mounting surrounding must be
checked and the cover material from the cable must be proofed, if it resists these requirements.
You can get an overview from the chemical resistance of the cover material from us.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
ESW®-Mini (hol550)
1.1 Symbols Used in This Document
Safety instructions Safety instructions in this manual are identified by symbols.
The safety instructions are prefixed by attention-getting words
which indicate the level of danger involved.
Observe the safety instructions in all cases and proceed
carefully in order to avoid accidents, personal injury and
damage to equipment and property.
DANGER!
… indicates an imminently hazardous situation that will result
in death or serious injury if not avoided.
WARNING!
… indicates a potentially hazardous situation that may result
in death or serious injury if not avoided.
Tips and recommendations
CAUTION!
… indicates a possibly hazardous situation which can may
result in minor or moderate injury if not avoided.
CAUTION!
… indicates a potentially hazardous situation that may result
in property damage if not avoided.
NOTE!
…draws your attention to useful tips, recommendations and
information for efficient, trouble-free operation.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
ESW®-Mini (hol550)
2. Performance specification
2.1. The Problem
Vibrations develop in many technical areas. Often they can be ignored or are even necessary,
but sometimes they are also undesirable or dangerous. Dangerous vibration states can also
develop from initially unnoticeable vibrations or completely unexpectedly.
The causes often lie in mechanical defects or unbalances or in improper use of the machine in
question. The consequences can include a deterioration of product quality, production losses
and safety hazards, and as a minimum increased wear.
Increased automation and, for example, high noise levels often hinder acoustic or visual
monitoring. Early detection, material treatment and protection and damage limitation offer a
significant potential for cost reductions.
2.2. Application Area
The ESW®-Mini is used to protect machines, mechanical equipment and devices and last but
not least the operating staff against the impacts of excessively high vibration stress. It
permanently monitors the level of the vibration and provides a warning if the limit level is
exceeded. The current level of the vibration parameter can also be measured at any time via
the analog output.
The frequency range and the unit of measurement result from the characteristics of the
measured object and the environmental reference. Depending on the measured object occurs
the signal estimation according to the crest value or the effective value of the measurement.
The actual measurement is given out in form of a 4 to 20mA analog-signal that can be
used without any disturbance for longer cable interconnections.
2.3. Foreseeable Misuse
2.4. Special Features
The device does not require special maintenance!
If you send the device to the manufacturer for inspection and checking, please enclose a
detailed description of the fault and provide the name of a contact person whom we can contact
if we have questions.
WARNING!
• Never change the limit level to reduce assumed false alarms.
Clarify the cause of the alarms.
• Manipulation of the switch contacts of the alarm output or dismantling
of the device disable the monitoring function.
• Every modification or change can endanger safety.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
ESW®-Mini (hol550)
2.5 Options ex factory
To adjust the device perfectly to the vibration problem, the device can be customer-specific
manufactured. The following options can be selected:
different measurement parameters
analog output with range of 0 to 20mA or 4 to 20mA
with alarm buffer and internal/ external reset or reponse delay and dropout delay
type and length of the connection cable
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
LED1
LED2
LED3
1
3
2
456
7
9
0
8
ST1
On
1 2 3 4 5 6 7
ST2
ESW®-Mini (hol550)
3.Description of the Device
3.1 Display and Operating Elements
NOTE!
Not all functions are present in all versions
picture 2: Display and operating elements (full equipped,depending on version)
LED1 The green Supply Voltage LED lights up as soon as the device is connected to
LED2 The yellow Limit Level LED lights up if the currently measured level exceeds
LED3 The red Alarm LED lights up when the alarm relay is in the "Alarm" position".
Operating elements
ST1: The limit level switch is used to set the alarm threshold.
ST2: The dip-switch is used to activate different settings.(see chapter 4.6)
1. Connection shield – housing
2. Connection shield – internal ground
3. Reset function
4. Set if the device works with or without alarm-buffer and a switch causes a
switching edge which reset the alarm-buffer.
5. Analog output 0-20 mA or 4-20mA.
6. Measuring range
7. Measuring range
the power supply.
the set limit level.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
ESW®-Mini (hol550)
4. Steps Involved for Use of the Device
4.1 Identifying the Device
WARNING!
Different device versions have different technical data.
The wrong device version can malfunction or fail during use.
Since the technical data are not directly visible on the device, you need to refer to the type label
to ensure that you have the right device for the task at hand.
First you need to determine what device version should be used.
You should then check the type label attached to the device.
In addition to the name of the manufacturer and the serial number, the type label also indicates
the device version.
If you are in any doubt, please contact the manufacturer to be on the safe side.
Type Label
The type label is attached to the device and
includes the following information:
Type
Ser. No. xxyy - seq. no. (xx=week,
yy=year)
Manufacturer
Fig. 2: Type label
4.2 Packing, Dispatch and Storage
CAUTION!
The device can become damaged if dropped onto a hard surface. The
cable can become damaged if it is bent or crushed.
The device must be sealed during transport and storage to protect it against dirt and moisture.
The connecting cable must be coiled with a minimum radius of 100mm and protected against
becoming kinked or crushed.
The bare ends of the conductors must be protected against unintentional contact with unknown
voltage levels.
During transport, the device must be suitably packed to protect it if it is dropped.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
ESW®-Mini (hol550)
4.3 Installing the Device
Fig. 3: Installation drawing
In the version with a standard housing, the device is installed on the machine to be monitored
using two M4 threaded bolts. A drilling template is provided in Section 6.2. A sufficiently large,
flat mounting surface must be available around the mounting position for the device,
perpendicular to the mounting holes and the direction of vibration.
With the housing version with a base plate, the device is installed on the machine to be
monitored using a central M8 threaded pin. The maximum torque of 30 Nm may not be
exceeded, and the force may only be applied via the hexagonal element.
1. The measurement axis of the device must be aligned to the direction of vibration
(see the drawing of the housing).
2. The instructions on the device must be complied with in all cases.
3. The mounting surface must be flat, clean and free of paint and rust.
4. The threaded hole(s) must be perpendicular to the mounting surface and free of swarf and
other foreign bodies. The threaded hole(s) may also not contain any paint, rust, lubricant or
insulation material. This also applies to the threaded hole in the device and to the threaded
pin.
5. The threaded pin and the mounting bolts must be secured using a suitable liquid fixing agent
to
prevent unintentional loosening.
6. The device must be lie solidly on the mounting surface.
CAUTION!
When the device has been installed, the connecting cable is laid. Care
must be taken that the cable is on the one hand fitted sufficiently
flexibly, to ensure that it does not become torn off during excessive
vibration. On the other hand it must be laid sufficiently firmly to ensure
that it can not itself generate noises due to impacts, that it is protected
against damage during normal operation, and that it does not create a
risk of accidents due to tripping or stumbling over it. The bend radius of
the connecting cable may in no case be less than 70 mm.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
ESW®-Mini (hol550)
4.4 Connecting the Cable
Once the cable has been properly laid, the individual wires must be connected in accordance
with the wiring diagram (see the data sheet).
CAUTION!
Check the supply voltage and switch it off when fitting and connecting
the device.
4.5 Opening and Closing the Measurement Device
Figure 4: The device viewed from above(closed) Figure 5: ESW-Mini in full equipment (open)
To open the measurement device, the user requires a Size 2 Phillips screwdriver or a
flat-head screwdriver with a head width of approx. 6 mm.
Prior to fitting the cover the seal must be inspected. If it is brittle, deformed or
damaged the device can no longer fulfil the requirements of the specified IP protection
class.
It must be ensured that the threads and the interior are free from dirt and oil. The
outside and inside of the device may only be cleaned using a clean, dry cloth.
4.6 Starting Up the Device
First the settings must be made in accordance with the instructions. The power supply is then
switched on and a start-up test is executed. The LEDs, the analog output and the relay
switching states should be monitored during the test. On completion of the test the device the
cover is then replaced.
CAUTION!
Switching actions on the relay contacts in the start-up phase can
be incorrectly interpreted during the subsequent evaluation.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
Connection
shield to housing
Connection
shield to internal
ground
S1
S2
OFF
OFF
x
ON
OFF
x
OFF
ON x x
ON
ON
ESW®-Mini (hol550)
4.7 Ground connection settings( ST2: S1 and S2)
WARNING!
Potential-differences and excessive leakage currents can be result into
signal scatters and large equalizing currents, that could cause errors at
the measurement mode or even destruction inside of the device.
For a flexible reaction at different situations, it´s possible to connect different grounds differently
with the switch S1 and S2 of the dip switch.
table 1: grounding connection
4.8 Setting the Limit Level
WARNING!
The correct limit level depends on the measurement task and may not
be changed without careful consideration of the impacts.
If a large number of alarms are generated, the reason for these should
first be established rather than simply changing the limit level.
• To change the limit level, first the device must be opened.
• The desired limit level is then set using the limit level step switch. The step switch is marked
with the numbers 0 to 9. Switch position 1 corresponds to a limit level of 10%, position 6
corresponds to a limit level of 60%, and position 0 corresponds to a limit level of 100% of the
measurement range. The switch does not have an end stop and can be rotated through 360°
without a risk of damage.
• Having set the limit level, the device is then closed again.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
ESW®-Mini (hol550)
Version with step switch (ST1)
The step switch is adjustable with a small screwdriver, blade width 3mm. On top of the
step switch there are numbers from 0 till 9. The number 1 means, the limit value of
10%, for example the number 6 correspond to the limit value of 60% and 0 means
100% from the measurement range. The switch has no mechanical limitation and could
be turned over 360°, without any risk.
4.8.2 Version with potentiometer (ST1)
The potentiometer is adjustable with a small screwdriver, blade width 3mm. Around of
the potentiometer exists a scale with numbers from 10 till 100. The number 10 means
10% of the measurement range and 100 means 100%. This potentiometer has a
continuous adjustable range, with a turning angle of 300° between both mechanical
limits.
Please take care during the adjustment, not to destroy or to shift any other adjustment
element. You should absolutely safe the unit for entering of dirt, humidity or other alien
element. After finishing the adjustment, make sure to close the unit perfectly and check
that the cover is solid close
4.9 Set measurement range (ST2: S6 and S7)
There are devices with a fixed measurement range and devices with
adjustable measurement range.
WARNING!
The selected measuring range must not be change carelessly.
If the alarms accumulate, the reasons for the alarms have to be found and
stopped.
To change the measurement range, you can use the 2 DIP-switches. At the lower
position the DIP-switches are turned OFF, equivalent to “0” level, at the higher position
equivalent to “1” level the DIP-switches are switched ON.
The measurement range in the following should be understand like an example. Other
measurement ranges are realizable in specified ranges on customer request.
Please take care during the adjustment, not to destroy or to shift any other adjustment
element. You should absolutely safe the unit for entering of dirt, humidity or other alien
element. After finishing the adjustment, make sure to close the unit perfectly and check
that the cover is solid closed.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
Measurement range
Position
Version 1
Version 2
S6
S7
10mm/s
15mm/s
OFF
OFF
20mm/s
30mm/s
ON
OFF
50mm/s
45mm/s
OFF
ON
60mm/s
60mm/s
ON
ON
output range
S5
0 bis 20mA
ON
4 bis 20mA
OFF
ESW®-Mini (hol550)
table 2: set of measurement range ( example)
4.10 Set analog output (ST2: S5)
The analog output supplies 0-20mA or 4-20mA optionally
.table 3: analog output range
4.11 Set alarm memory function and trigger reset function (ST2:S4)
If the device is equipped with the alarm-buffer, a button can be intended for the external reset.
For a reset, the corresponding control line must be set with the push-button to the ground
potiential of the device for a brief time. If there is an optional occupancy, the button S4 of the dip
switch can be used to perform a reset.
4.12 Normal use of the device
During normal use the level of the analog output can be monitored to determine whether and to
what extent the level of vibration changes depending on the use of the machine.
If the indicated vibration level changes abruptly, the reason for this should be determined.
Correct seating and proper condition of the device should be checked on a regular basis.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
ESW®-Mini (hol550)
4.13 Removal of the Device
CAUTION!
To avoid short-circuits and false alarms, make sure that the power
supply and the signal evaluation are switched off and/or disconnected.
To electrically disconnect the device from the machine and physically remove it from the
machine, the power must first be disconnected from all connections to prevent short-circuits.
The downstream evaluation is then to be prepared for the disconnection, to avoid false alarms.
The cable connections can then be disconnected from the device.
The cable glands and clamps are then dismantled and the cable removed up to the device. The
device can now be unscrewed and removed together with the cable.
All loose and sharp-edged parts are then re-secured or removed.
The mounting holes for the device must be protected using suitable sealing plugs.
The removal of the device must be indicated on the machine.
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
pic. 1
98
64
34
ESW®-Mini (hol550)
5. Technical data
5.1 Dimensions
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Electronic Vibration Monitoring Unit
holthausen
elektronik GmbH
8
6
3
6
attached by
2 screws M4
attached by
1 thread pin M8
case with
ground plate and
attachment bolt
pic. 4
standard case
pic. 3
ESW®-Mini (hol550)
5.2 Drilling template
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