KROHNE SLM2100 User Manual
OPTISYS SLM 2100
OPTISYS SLM 2100
OPTISYS SLM 2100OPTISYS SLM 2100
Sludge level meter
Software Revision:
01.00.01
Original handbook
Handbook
Handbook
HandbookHandbook
© KROHNE 03/2014 - 4002737302 - MA OPTISYS SLM 2100 R02 en
: IMPRINT :::::::::::::::::::::::::::::::::::::::
All rights reserved. It is prohibited to reproduce this documentation, or any part thereof, without
the prior written authorisation of KROHNE Messtechnik GmbH.
Subject to change without notice.
Copyright 2014 by
KROHNE Messtechnik GmbH - Ludwig-Krohne-Str. 5 - 47058 Duisburg (Germany)
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OPTISYS SLM 2100
CONTENTS
1 Safety instructions 5
1.1 Software history ............................................................................................................... 5
1.2 Intended use ..................................................................................................................... 5
1.3 Certifications .................................................................................................................... 6
1.4 Safety instructions from the manufacturer ..................................................................... 7
1.4.1 Copyright and data protection ................................................................................................ 7
1.4.2 Disclaimer ............................................................................................................................... 7
1.4.3 Product liability and warranty ................................................................................................ 8
1.4.4 Information concerning the documentation........................................................................... 8
1.4.5 Warnings and symbols used................................................................................................... 9
1.5 Safety instructions for the operator................................................................................. 9
2 Device description 10
2.1 Scope of delivery............................................................................................................. 10
2.2 Device description .......................................................................................................... 11
2.3 Nameplate ...................................................................................................................... 13
3 Installation 14
3.1 General notes on installation ......................................................................................... 14
3.2 Storage and transport .................................................................................................... 14
3.3 Installation order............................................................................................................ 15
3.3.1 Mounting of the sludge level meter...................................................................................... 16
3.4 Typical measuring point ................................................................................................. 18
3.5 Installing the cleaning unit (optional) ............................................................................ 19
3.5.1 Installation of the water hose ............................................................................................... 20
4 Electrical connections 21
4.1 Safety instructions.......................................................................................................... 21
4.2 Used abbreviations .........................................................................................................21
4.3 Description of electrical symbols................................................................................... 22
4.4 Important device-specific notes on electrical connection............................................. 23
4.5 Overview cable connections ........................................................................................... 24
4.6 Overview of the terminal compartment ......................................................................... 25
4.7 Connecting the power supply......................................................................................... 26
4.8 Description and properties of the outputs and the input............................................... 27
4.8.1 Current output ...................................................................................................................... 27
4.8.2 Control input (active)............................................................................................................. 28
4.9 Connection of the outputs and the input........................................................................ 29
4.9.1 Important notes..................................................................................................................... 29
4.9.2 Current output (active).......................................................................................................... 30
4.9.3 Electrical connection of control inputs................................................................................. 31
4.10 Description and properties of the relays ..................................................................... 33
4.10.1 Connection of the relays ..................................................................................................... 33
4.11 Electrical connection of the external pump................................................................. 35
4.12 Protection category ...................................................................................................... 35
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CONTENTS
OPTISYS SLM 2100
5 Operation 36
5.1 Start-up and general remarks for configuration........................................................... 36
5.2 Switching on the power .................................................................................................. 37
5.3 Operating elements........................................................................................................ 38
5.4 Measuring page .............................................................................................................. 39
5.4.1 Navigating through the menus .............................................................................................40
5.5 Menu mode structure..................................................................................................... 44
5.6 Function tables ............................................................................................................... 45
5.6.1 Menu A, quick setup.............................................................................................................. 45
5.6.2 Menu B, test .......................................................................................................................... 45
5.6.3 Menu C, setup ....................................................................................................................... 46
5.7 Functions in detail .......................................................................................................... 51
5.7.1 Definition of positions and zones.......................................................................................... 51
5.7.2 Measuring function ............................................................................................................... 52
5.7.3 Measuring mode ................................................................................................................... 52
5.7.4 Definition of fluff and blanket concentration........................................................................ 53
5.7.5 Definition in zone tracking mode.......................................................................................... 53
5.7.6 Rake guard / external trigger ............................................................................................... 53
5.7.7 Timer / start signal ............................................................................................................... 54
5.7.8 Extended settings.................................................................................................................. 54
5.7.9 Calibration............................................................................................................................. 55
5.7.10 Passwords........................................................................................................................... 58
5.7.11 Timeout function ................................................................................................................. 58
5.8 Status messages and diagnostic information................................................................ 59
5.8.1 Error category "Device failure" (bold "F")............................................................................ 60
5.8.2 Error category "Application error" ( "F", not bold) .............................................................. 61
5.8.3 Error category "Information" (I) ........................................................................................... 61
5.8.4 Error category "Out of specification" (S) .............................................................................. 61
6 Service 62
6.1 Manual initiation of a measurement .............................................................................. 62
6.2 Maintenance ................................................................................................................... 62
6.2.1 Cleaning unit (optional)......................................................................................................... 64
6.3 Spare parts availability...................................................................................................65
6.4 Availability of services .................................................................................................... 65
6.5 Returning the device to the manufacturer..................................................................... 65
6.5.1 General information.............................................................................................................. 65
6.5.2 Form (for copying) to accompany a returned device............................................................ 66
6.6 Disposal .......................................................................................................................... 66
7 Technical data 67
7.1 Measuring principle........................................................................................................67
7.2 Technical data................................................................................................................. 68
7.3 Dimensions ..................................................................................................................... 72
8 Notes 73
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OPTISYS SLM 2100
1.1 Software history
INFORMATION!
This documentation explains the installation and operation of the OPTISYS SLM 2100 sludge
level meter.
Release date Software version Documentation
04/2013 01.00.01 MA OPTISYS SLM 2100 R02 en
1.2 Intended use
The OPTISYS SLM 2100 sludge level meter is primarily designed for use in water and waste
water treatment plants. There it determines the sedimentation profile in clarifiers and sludge
thickeners and detects sludge blanket or fluff level. For this it measures the suspended solids
concentration and height of the sensor above ground as the sensor is lowered into the basin or
tank.
However, the design of the OPTISYS SLM 2100 makes it possible to use it in other applications
where reliable monitoring of interface or stratification in suspensions is necessary.
SAFETY INSTRUCTIONS 1
The OPTISYS SLM 2100 shall not be used in hazardous areas, which e.g. require Ex approvals. It
could ignite gases. Additionally, due to the sensors material, the meter shall not be used in
applications with a high concentration of salt (e.g. seawater). The device has been constructed
for indoor and outdoor use below the maximum altitude of 2000 m / 6562 ft.
By observing the operation instructions, national standards, safety requirements and accident
prevention regulations the residual risk is reduced to an acceptable level.
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1 SAFETY INSTRUCTIONS
1.3 Certifications
CE marking
The device fulfils the statutory requirements of the following EC directives:
• Electromagnetic compatibility (EMC) in accordance with directive 2004/108/EC:
EN 61000-6-4 2007 Electromagnetic compatibility (EMC) - Part 6-4: Generic standards -
Emission standard for industrial environments
EN 61000-6-3:2007 Electromagnetic compatibility (EMC) - Part 6-3: Generic standards Emission standard for residential, commercial and light-industrial environments
EN 61000-6-2:2005 Electromagnetic compatibility (EMC) - Part 6-2: Generic standards Immunity for industrial environments
EN 61326-1:2013 Electrical equipment for measurement, control and laboratory use - EMC
requirements - Part 1: General requirements
• Low voltage directive according to directive 2006/95/EC:
EN 61010-1:2011 Safety requirements for electrical equipment for measurement, control,
and laboratory use (Part 1: General requirements)
• Directive for machinery 2006/42/EC in accordance with:
EN 60204-1:2006 Safety of machinery - Electrical equipment of machines (Part 1: General
requirements)
EN 953:1997+A1:2009 Safety of machinery - Guards - General requirements for the design
and construction of fixed and movable guards
• Directive on the restriction of the use of certain hazardous substances in electrical and
electronic equipment in accordance with directive 2011/65/EU
OPTISYS SLM 2100
The manufacturer certifies successful testing of the product by applying the CE marking.
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1.4 Safety instructions from the manufacturer
1.4.1 Copyright and data protection
The contents of this document have been created with great care. Nevertheless, we provide no
guarantee that the contents are correct, complete or up-to-date.
The contents and works in this document are subject to copyright. Contributions from third
parties are identified as such. Reproduction, processing, dissemination and any type of use
beyond what is permitted under copyright requires written authorisation from the respective
author and/or the manufacturer.
The manufacturer tries always to observe the copyrights of others, and to draw on works created
in-house or works in the public domain.
The collection of personal data (such as names, street addresses or e-mail addresses) in the
manufacturer's documents is always on a voluntary basis whenever possible. Whenever
feasible, it is always possible to make use of the offerings and services without providing any
personal data.
SAFETY INSTRUCTIONS 1
We draw your attention to the fact that data transmission over the Internet (e.g. when
communicating by e-mail) may involve gaps in security. It is not possible to protect such data
completely against access by third parties.
We hereby expressly prohibit the use of the contact data published as part of our duty to publish
an imprint for the purpose of sending us any advertising or informational materials that we have
not expressly requested.
1.4.2 Disclaimer
The manufacturer will not be liable for any damage of any kind by using its product, including,
but not limited to direct, indirect or incidental and consequential damages.
This disclaimer does not apply in case the manufacturer has acted on purpose or with gross
negligence. In the event any applicable law does not allow such limitations on implied warranties
or the exclusion of limitation of certain damages, you may, if such law applies to you, not be
subject to some or all of the above disclaimer, exclusions or limitations.
Any product purchased from the manufacturer is warranted in accordance with the relevant
product documentation and our Terms and Conditions of Sale.
The manufacturer reserves the right to alter the content of its documents, including this
disclaimer in any way, at any time, for any reason, without prior notification, and will not be liable
in any way for possible consequences of such changes.
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1 SAFETY INSTRUCTIONS
1.4.3 Product liability and warranty
The operator shall bear responsibility for the suitability of the device for the specific purpose.
The manufacturer accepts no liability for the consequences of misuse by the operator. Improper
installation and operation of the devices (systems) will cause the warranty to be void. The
respective "Standard Terms and Conditions" which form the basis for the sales contract shall
also apply.
1.4.4 Information concerning the documentation
To prevent any injury to the user or damage to the device it is essential that you read the
information in this document and observe applicable national standards, safety requirements
and accident prevention regulations.
If this document is not in your native language and if you have any problems understanding the
text, we advise you to contact your local office for assistance. The manufacturer can not accept
responsibility for any damage or injury caused by misunderstanding of the information in this
document.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device. Special considerations and precautions are also described in the
document, which appear in the form of underneath icons.
OPTISYS SLM 2100
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1.4.5 Warnings and symbols used
Safety warnings are indicated by the following symbols.
DANGER!
This warning refers to the immediate danger when working with electricity.
DANGER!
This warning refers to the immediate danger of burns caused by heat or hot surfaces.
DANGER!
This warning refers to the immediate danger when using this device in a hazardous atmosphere.
DANGER!
These warnings must be observed without fail. Even partial disregard of this warning can lead to
serious health problems and even death. There is also the risk of seriously damaging the device
or parts of the operator's plant.
SAFETY INSTRUCTIONS 1
WARNING!
Disregarding this safety warning, even if only in part, poses the risk of serious health problems.
There is also the risk of damaging the device or parts of the operator's plant.
CAUTION!
Disregarding these instructions can result in damage to the device or to parts of the operator's
plant.
INFORMATION!
These instructions contain important information for the handling of the device.
LEGAL NOTICE!
This note contains information on statutory directives and standards.
• HANDLING
HANDLING
HANDLINGHANDLING
This symbol designates all instructions for actions to be carried out by the operator in the
specified sequence.
i RESULT
RESULT
RESULTRESULT
This symbol refers to all important consequences of the previous actions.
1.5 Safety instructions for the operator
WARNING!
In general, devices from the manufacturer may only be installed, commissioned, operated and
maintained by properly trained and authorized personnel.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device.
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2 DEVICE DESCRIPTION
2.1 Scope of delivery
INFORMATION!
Inspect the packaging carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
OPTISYS SLM 2100
Figure 2-1: Scope of delivery
1 Sludge level meter
2 Brackets for round / rectangular handrail
3 Handrail mounting frame
4 Mounting accessories
5 Documentation
6 Key for cable drum lock and key for electronic compartment lock
7 Cleaning unit (optional)
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2.2 Device description
DEVICE DESCRIPTION 2
Figure 2-2: Device description of OPTISYS SLM 2100
1 Fan
2 Electronic compartment door with display
3 Cable drum compartment door
4 Guide roller
5 Sensor
6 4 x cable feedthrough M20
7 Cable drum
8 Pickup and axle board with optical interface
9 Safety switch
10 Main electronics and connectors
Main electronics unit
The main electronics unit is located in a separate compartment above the cable drum, which can
be accessed via a separate door with a key lock. It contains the main board and fan assembly.
The main board bears the main processor and all electrical connectors. It also controls all
mechanical and electrical events in the device and communicates with sensor, display and
keyboard. It additionally contains the current outputs and control inputs.
Fan assembly
The position of the fan is on the top right side of the enclosure. Together with the heater it
maintains a stable temperature inside the enclosure of the meter.
DANGER!
The rotating fan blades can be accessed, when the electronic compartment door is open and
there is a risk of injury when rotating fan is touched.
Display and keyboard
Display and keyboard are located in the front door of the electronics compartment. Display and
keyboard are based on the GDC (general device concept), which means a common HMI to all
KROHNE GDC instruments is provided. The keyboard consists of four membrane keys and the
display is a LCD graphic display with a resolution of 128 x 64 Pixel.
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2 DEVICE DESCRIPTION
Cable drum assembly and heater unit
The cable drum helps to move the sensor up and down in the basin. It is mounted directly on the
motor shaft of a synchronous motor, hidden behind the drum mounting plate. The cable drum
always moves with a very constant speed. Since the diameter of the cable roll in the drum varies,
the speed of the sensor varies. That is why the sensor moves slower during the end of the
sampling.
The heater unit is located behind the drum mounting plate. In conjunction with the fan it
maintains a stable temperature inside the enclosure of the meter.
Guide roller
The guide roller helps to keep the cable in place during the measuring process.
Sensor
The sensor contains a near-infrared light source and a receiver. Both are positioned in such a
way that the emitted near-infrared light has to pass through the liquid before reaching the
receiver.
Pickup board & axle board
The pickup board is mounted on a spring loaded lever arm and transfers power and
communication signals to the cable drum.
OPTISYS SLM 2100
The axle board on the cable drum is powered contactless ("inductively") from the pickup board. It
communicates with the main electronics unit via the pickup board and with the sensor via an
optical interface.
Cable feedthroughs
The four M20 cable feedthroughs are for the connection of power, signal and control cables.
Safety switch
The safety switch located on the top left corner of the cable drum compartment is a protective
device, which de-energizes the motor when the front door is opened in order to avoid danger due
to moving parts inside the meter.
Cleaning unit (optional)
The cleaning unit, mounted under the device, consist of a valve and a spraying system to keep
the sensor and cable free of deposits ensuring low maintenance efforts of OPTISYS SLM 2100.
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OPTISYS SLM 2100
2.3 Nameplate
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
DEVICE DESCRIPTION 2
Figure 2-3: Example of a nameplate
1 Manufacturer
2 CE marking
3 Manufacturing date
4 Power supply data
5 Observe the operation and installation instruction
6 Protection category
7 Order code / TAG no.
8 Production order / Serial number
9 Device name
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3 INSTALLATION
3.1 General notes on installation
INFORMATION!
Inspect the packaging carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
INFORMATION!
The display should be mounted in a height of 1.5...1.8 m / 4.9...5.9 ft to prevent ergonomic
hazards.
INFORMATION!
During work on the device above the basin the personnel have to be protected by personal safety
equipment.
OPTISYS SLM 2100
3.2 Storage and transport
• Store and transport the device in a dry, dust-free environment.
• Store and transport the device in an environment with a temperature between 0...+60°C/
+32...+140°F.
• The original packing is designed to protect the equipment. It has to be used if the device is
transported or sent back to the manufacturer including the sensor transportation packing, to
prevent damage of the sensor.
INFORMATION!
Due to the weight above 20 kg / 44.1 lbs please lift and carry the device only with two persons or
use approbiate lifting equipment and if the surfaces of the device are wet, please use gloves for
lifting.
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3.3 Installation order
DANGER!
Do not install the sludge level meter in hazardous areas, it can ignite explosive gases!
DANGER!
Do not cover or obstruct the ventilation. It can lead to overheating of the device.
INFORMATION!
Protect the device against strong weather (lightning protection / overvoltage protection) and
sunlight to prevent damages.
INFORMATION!
The operator is responsible for providing, securing and the possibility for switching off the supply
voltage.
INFORMATION!
The external electrical main switch (red / yellow) of the device have to be located close to the
device and easily accessible. An internal main switch is not available.
INSTALLATION 3
INFORMATION!
The device should be located at save installation site in order to prevent the danger of falling in
the water basin. Furthermore in front of the device should be space to access the device easily.
INFORMATION!
For the security of access to the device is the operator responsible.
To install the measuring system in the best way, follow the steps described below.
Steps to install the meter
1 Mounting of the sludge level meter
(for detailed information refer to
2 Installing the cleaning unit (optional)
(for detailed information refer to
3 Connecting the power supply
(for detailed information refer to
4 Connection of the current outputs
(for detailed information refer to
5 Connecting the rake guard switch / external trigger or maintenance switch - if required
(for detailed information refer to
6 Configuration of the sludge level meter
(for detailed information refer to
7 Calibration of the sludge level meter
(for detailed information refer to
Mounting of the sludge level meter
Cleaning unit (optional)
on page 64)
Connecting the power supply
Current output (active)
on page 30).
Electrical connection of control inputs
Functions in detail
Calibration
on page 55).
on page 51).
on page 16).
on page 26).
on page 31).
INFORMATION!
For decommissioning of the device please repeat the steps above in reverse order.
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3 INSTALLATION
3.3.1 Mounting of the sludge level meter
INFORMATION!
All needed bolts, nuts and washers belong to the standard scope of delivery. To ensure proper
assembly, please use only the mounting material provided with the meter.
INFORMATION!
All blots, nuts and washers should be greased to prevent cold welding and ensure simple
disassemble after use.
INFORMATION!
Please ask a second person to help with this procedure.
The mounting frame, which is part of the scope of delivery, can be used to mount the meter on
round or square handrails, as well as on vertical mounting posts or walls.
The first step of the installation procedure is to build the frame as shown in the picture below.
OPTISYS SLM 2100
Step 1: Assembling of the mounting frame
• Assemble the two brackets and two crossbar braces with the help of bolts, nuts and washers
according to the following drawing.
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Figure 3-1: Mounting frame
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OPTISYS SLM 2100
Step 2a: Mounting on round handrail
• Mount the frame with help of the brackets in a position that the horizontal bar of the frame is
above the handrail.
Figure 3-2: Mounting on handrail
INSTALLATION 3
Step 2b: Mounting on square handrail
• Mount the frame with help of the brackets in a position that the horizontal bar of the frame is
above the handrail.
Step 2c: Mounting on vertical post
• Mount the frame with help of the brackets in a position that the horizontal bar of the frame is
above the handrail.
Step 3: Fixing of meter
• Fix the meter to the upper part of the brackets with the help of bolts and washers according to
the following drawing.
• Please make sure that the meter is mounted in such a height that display and keyboard are at
eye level.
• Remove the sensor transportation protection to prevent blocking of the sensor.
Figure 3-3: Mounting device on handrail
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3 INSTALLATION
Step 4: Adjusting
• Open the door of the meter for 45°.
• Adjust the meter horizontally using the last two screws that you screw in the lower part of the
frame.
• Turn the screws until the door does not move (open and close) any more from the 45° position.
OPTISYS SLM 2100
Figure 3-4: Adjusting frame
3.4 Typical measuring point
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Figure 3-5: Typical measuring points
1 OPTISYS SLM 2100 with brackets for round handrail on vertical post
2 OPTISYS SLM 2100 with brackets for rectangular handrail
3 OPTISYS SLM 2100 with brackets for round handrail
4 Handrail
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OPTISYS SLM 2100
3.5 Installing the cleaning unit (optional)
The cleaning unit consist of a water connection, an OPTISYS SLM 2100 controlled valve and the
spraying unit to clean the cable and the sensor.
If installing a device containing a cleaning unit, keep a safety area around the sensor garage free
from electrical device or water sensitive parts, as outlined in the following drawing.
INSTALLATION 3
Figure 3-6: Safety area
1 Radius: 2 m / 78.74"
Keep this area around the device free from electrical installations or water sensitive devices.
When the cleaning system is active, water might be sprayed in this area.
The cleaning unit can be supplied with water by 2 options:
• External water supply by hose
• Pump controller (for more information refer to
page 35)
Electrical connection of the external pump
on
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3 INSTALLATION
3.5.1 Installation of the water hose
WARNING!
The maximum allowed water pressure should not exceed 6 bar / 87 psi.
INFORMATION!
An external separation switch of the water supply have to be located close to the device and
easily accessible.
A 3/4" connector wit metric thread provides the mounting point for the water hose adapter.
When installing the water hose adapter on the connector, carefully fix the nut of the fitting. The
electric valve inside the cleaning system housing maybe twisted, which may cause water
leakage. If it is not possible to tighten the nut of the hose fitting adequately, remove the lower
cover of the cleaning unit and lock the nut mounted in the electric value.
When installing the device, make sure the water hose is adequately fixed as outlined. Mount the
water hose in such a way that the weight of it is not carried by the hose adaptor. When fixing the
hose also take into account that it must be avoided that it moves when the system is switched
on/off.
OPTISYS SLM 2100
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Figure 3-7: Fixing points water hose
1 Water hose
2 Fixing points
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OPTISYS SLM 2100
4.1 Safety instructions
DANGER!
All work on the electrical connections may only be carried out with the power disconnected. Take
note of the voltage data on the nameplate!
DANGER!
Observe the national regulations for electrical installations!
WARNING!
Observe without fail the local occupational health and safety regulations. Any work done on the
electrical components of the measuring device may only be carried out by properly trained
specialists.
WARNING!
Before performing any work on the device switch off the power and make sure that it cannot be
switched on accidently.
ELECTRICAL CONNECTIONS 4
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
4.2 Used abbreviations
Abbreviation Description
CI
a
I
a
I
max
I
nom
R
L
P Power
U
int, nom
U
ext
U
o
VAC Volt alternated current
CI Control input
PCS Process control system
NO Switch (normally open)
NC Switch (normally closed)
LED Light-emitting diode
K Relay
Control input active
Current output active
Maximum current
Nominal current
Load resistance
Nominal internal voltage
External voltage
Terminal voltage
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4 ELECTRICAL CONNECTIONS
4.3 Description of electrical symbols
Symbol Description
mA meter, 0...20 mA or 4...20 mA and other, RL is the internal resistance of the
measuring point including the cable resistance
Internal DC voltage source
Controlled internal current source in the device
Switch, NO contact or similar
Input, galvanically insulated
OPTISYS SLM 2100
PTC resistance
Symbol for LED
Symbol for the protection switch
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OPTISYS SLM 2100
ELECTRICAL CONNECTIONS 4
4.4 Important device-specific notes on electrical connection
DANGER!
Never install or operate the device in potentially explosive areas, it might cause an explosion that
can result in fatal injuries!
DANGER!
The device must be grounded in accordance with regulations in order to protect personnel
against electric shocks.
DANGER!
When installing and wiring the device, note the safety regulations of the current state of the art.
Also note the following items to avoid fatal injuries, destruction or damage of the device or
measuring errors:
•
De-energise the cables of the power supply before you start any installation works!
•
All used cables must have a corresponding dielectric strenght of min. 2 kV.
•
It is recommended to use shielded signal cables which are only connected on one side (e.g. to
the protective earth on the mainboard next to the relays).
•
When using relays, note that with inductive loads the interference must be suppressed (spark
quenching).
•
Assure that all electrical connection works are compliant with the VDE 0100 directive
"Regulations for electrical power installations with line voltages up to 1000 V" or equivalent
national regulations.
•
Use suitable cable glands for the various electrical cables and suitable connecting cables for
the field of application. The outer diameter of the connecting cables has to fit to the cable
glands.
•
The nominal voltage of the connecting cable has to fit to the operating voltage of the device.
•
If the handrail is not adequately grounded, ground the device with a wire of 6 mm2 / 0.009
square inch.
INFORMATION!
Assembly materials and tools are not part of the delivery. Use the assembly materials and tools
in compliance with the applicable occupational health and safety directives.
www.krohne.com03/2014 - 4002737302 - MA OPTISYS SLM 2100 R02 en
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