This document and its contents are proprietary to NIVUS GmbH and are not to be
repro-duced or copied without the express written permission of NIVUS GmbH.
Violations oblige to compensation.
Important Note
This manual may exclusively - even in parts - be copied or translated in any other
way with the express written consent of NIVUS GmbH.
Translation
If the device is sold to a country in the European Economic Area (EEA) this
instruction manu-al must be translated into the language of the country in which the
device is to be used. Should the translated text be unclear, the original instruction
manual (German) must be con-sulted or the manufacturer contacted for clarification.
Copyright
No part of this publication may be reproduced, transmitted, sold or disclosed without
prior permission. Damages will be claimed for violations. All rights reserved.
Copyrights and property rights
Names
The use of general descriptive names, trade names, trademarks and the like in this
manual does not entitle the reader to assume they may be used freely by everyone.
They are often protected registered trademarks even if not marked as such.
NivuLink Micro - Rev. 02/13.11.2018 page 3
Instruction Manual
Rev.
Date
Changes
Editor
02
13.11.2018
Chapter 7.4.2
KG
01
25.10.2018
New document
KG
Change History
NivuLink Micro
page 4 NivuLink Micro - Rev. 02/13.11.2018
Table of Contents
Copyrights and property rights 3
Change History 4
Table of Contents 5
1 General 8
Table of Contents
1.1 About this Manual .................................................................. 8
10.1 Disassembling / disposing of the NivuLink Micro ...................58
10.2 Dispose of batteries ...............................................................58
11 Use cases 59
11.1 Level monitoring in a closed vessel .......................................59
11.2 Level monitoring at a stormwater overflow tank with max.
basin level and basin overflow ..............................................59
EU Declaration of Conformity 60
NivuLink Micro - Rev. 02/13.11.2018 page 7
Instruction Manual
1 General
1.1 About this Ma nual
Note
READ CAREFULLY BEFORE USE!
KEEP IN A SAFE PLACE FOR LATER REFERENCE!
Important Note
This instruction manual is part of the NivuLink Micro and must always be available
for the user.
The safety instructions in the manual must be followed.
This Instruction manual is intended for the initial start-up of the unit depicted on the
title page. This manual is oriented exclusively to qualified expert personnel.
NivuLink Micro
Read this instruction manual carefully and completely prior to installation and
connection since it contains relevant information on this product. Observe the notes
and particularly follow the warning notes and safety instructions.
Keep this manual in a safe place and make sure it is available for the users of this
product at any time.
If you should have problems to understand information contained within this
instruction manual either contact the manufacturer or one of the distributors for
further support. The manufacturer cannot be held responsible for damage to persons
or material due to incorrectly understood information in this instruction.
In case of selling the instrument this instruction manual shall be provided to the
purchaser since it is a part of the standard delivery.
1.2 Required documentation
For the installation and operation of the complete system extra instruction manuals
or technical descriptions may be required apart from this manual.
•Technical description and/or installation guide for i-series ultrasonic sensors
and pressure sensors from NIVUS
These manuals are provided with the auxiliary units or sensors and/or are available
as download on the NIVUS homepage.
page 8 NivuLink Micro - Rev. 02/13.11.2018
Image
Meaning
Remark
1.3 Signs and Definitions used
1 General
>Text< Parameter or Menu Indicates a parameter or a menu that is se-
(Action) Step Execute action or step.
Note the numbering of action steps. Observe
the order of the working steps!
Cross Reference Reference to further or detailed information.
lected or described.
Reference to Document
Refers to accompanying documentation.
NivuLink Micro - Rev. 02/13.11.2018 page 9
Instruction Manual
2 Safety
2.1 Safety Instructions
2.1.1 Used Symbols and Signal Words
2.1.1.1 Explanations on the Valuation of the Degrees of Danger
The general warning symbol indicates the risk of personal injuries or death. In the
text section the general warning symbol is used in conjunction with the signal
words described below.
NivuLink Micro
DANGER
WARNING
CAUTION
WARNING
Warnings in high degree of risk
Indicates a high-risk, imminently hazardous situation which will result in death or
serious injury if not avoided.
Warnings in medium degree of risk
Indicates a possible danger with medium risk which may result in a life threatening situation or (severe) bodily injury if it is not avoided.
Warnings in low-risk or property damages
Indicates a possible danger with moderate risk which may result in minor or moderate personal injury or material damage if not avoided.
Danger by electric voltage
Indicates a hazard with a high risk of electric shock which may result in a lifethreatening situation or (severe) bodily injury if it is not avoided.
Important Note
Contains information that should be highlighted.
Indicates a potentially damaging situation which can result in a damage of the
page 10 NivuLink Micro - Re v. 02/13.11.2018
product or an object in its environment.
Note
Contains information and facts.
2.1.1.2 Warning notices on the product (option)
General warning label
This symbol is for operators to refer to this instruction manual.
Observing the information contained therein is required in order to maintain protec-
2.1.2 Safeguards and Precautions
tion measured provided by the instrument during installation procedures and operation.
Protective conductor
This symbol refers to the protective conductor of the unit.
Depending on the mode of installation the instrument shall be operated solely connected to an appropriate protective conductor according to applicable laws and
regulations.
Working with NIVUS instruments requires to observe and to follow the safety
measures and precautions below generally and at any time. These notes and
warnings will not be repeated for each description within the document.
2 Safety
WARNING
WARNING
WARNING
WARNING
Germ contamination
Please note that due to the operation in the waste water field the measurement
system and cables may be loaded with dangerous disease germs. Respective precautionary measures must be taken to avoid damage to one’s health.
Wear protective clothing.
Observe occupational safety regulations
Before starting installation work, observing the work safety regulations need to be
checked.
Disregarding may lead in personal injury.
Do not disable safety devices
It is strictly prohibited to disable the safety devices or to change the way they work.
Disregarding may lead in personal injury.
Disconnect the systems from mains
Maintenance, cleaning and/or repairs (by qualified personnel only) may only be
performed when de-energised.
Disregarding may lead to electric shocks.
NivuLink Micro - Rev. 02/13.11.2018 page 11
Instruction Manual
Important Note
The entire measurement system shall be installed and put into operation by trained
expert personnel only.
Important Note
The manufacturer's products designed for use outdoors are comprehensively protected against dust and moisture. If these products are connected by means of
cables and connectors to the power supply and/or to the sensors / actuators instead of being permanently wired, there is a risk that dirt, dust and moisture will
enter plugs and connectors. The operator is responsible for protecting plugs and
connectors from dirt, dust and moisture, and for complying with the local health
and safety regulations.
NivuLink Micro
page 12 NivuLink Micro - Re v. 02/13.11.2018
If the device is incorrectly used, the warranty will be void.
ages and costs.
2.1.3 Safety and precautionary measures for GSM/GPRS modems
The GSM/GPRS modem is located on the NivuLink Micro card. Please observe the
following warnings and notes when installing, operating, servicing and repairing a
GSM/GPRS modem:
Important Note
The NivuLink Micro may be installed only by a suitably qualified technician who
applies recognized installation techniques for RF transmitters; external antennas
must be properly grounded, as well.
The NivuLink Micro should be installed only as described in the user manual.
Important Note
Do not operate the NivuLink Micro
2 Safety
− in hospitals and / or near medical devices, like pacemakers or hearing aids
− near highly flammable zones, such as gas stations, storage facilities for
flammable materials, chemical plants und explosive sites
− near flammable gases, vapors or dust
Important Note
Do not expose the NivuLink Micro to strong vibrations or shocks.
Important Note
The GSM/GPRS modem can be disturbed by interference from nearby television
sets, radios or computer systems.
Important Note
Do not open the GSM/GPRS modem. The device may not be modified; if modified,
the permit for its use will be invalidated.
Important Note
Additional charges may be incurred by the use of GSM services, such as texting,
data transmission, GPRS, etc. The user shall be solely liable for any ensuing dam-
NivuLink Micro - Rev. 02/13.11.2018 page 13
Instruction Manual
2.2 Liability disclaimer
The manufacturer reserves the right to change the contents of this document
including this li-ability disclaimer without prior notice and cannot be held responsible
in any way for possible consequences resulting from such changes.
For connection, initial start-up and operation as well as maintenance of the unit the
following information and higher legal regulations of the respective country (in
Germany e. g. VDE regulations) such as applicable Ex regulations as well as safety
requirements and regulations in order to avoid accidents shall be observed.
All operations on the device which go beyond installation or connection measures in
principle shall be carried out by NIVUS staff or personnel authorised by NIVUS due
to reasons of safe-ty and guarantee.
Operate the transmitter only in technically perfect working order.
Improper Use
Not being operated in accordance with the requirements may impair the safety. The
manufacturer is not responsible for failures resulting from improper use.
NivuLink Micro
Important Note
If the device is damaged and the data is incorrectly stored, the manufacturer is not
liable for any data losses whatsoever.
page 14 NivuLink Micro - Re v. 02/13.11.2018
proper use. The user alone bears any risk.
orously observed.
2.3 Use in accordance with the requirements
Important Note
The instrument is intended solely for the purpose described below.
Modifying or using the instruments for any other purposes without the manufacturer ’s written consent will not be considered as use in accordance with the requirements.
The manufacturer cannot be held responsible for any damage resulting from im-
The GPRS/UMTS data logger NivuLink Micro comprises a cyclical data scan, a data
storage function and remote date transmsission to a server.
The NivuLink Micro is , upon publication of the document, designed and
manufactured to the latest technical standards and approved safety regulations.
Personal risk or material damage cannot nevertheless be completely ruled out.
The maximum permissible limit values as specified in chapter 5.5 Specifications shall
be necessarily observed. Any case varying from these conditions which is not
approved by NIVUS GmbH in written form is left at the owner’s risk.
2 Safety
Important Note
For installation and initial startup, conformity certificates and test reports from the
relevant standards institute, as well as applicable national regulations must be rig-
DANGER
Explosion hazard
The NivuLink Micro and the sensors should always be installed outside Ex zones!
NivuLink Micro - Rev. 02/13.11.2018 page 15
Instruction Manual
2.4 Shutdown Procedures
NivuLink Micro
WARNING
Danger by electric voltage
Prior to beginning maintenance, cleaning and / or repair works (to be executed by
qualified expert personnel only):
− disconnect the device from mains power supply or disconnect the re-
chargeable battery
− Safeguard the higher system from restarting
2.5 User’s Responsibilities
Important Note
In the EEA (European Economic Area) national implementation of the frame-work
directive 89/391/EEC and corresponding individual directives, in particular directive
2009/104/EC concerning the minimum safety and health requirements for the use
of work equipment by workers at work, as amended, are to be observed and adhered to.
In Germany the Industrial Safety Ordinance shall be observed
Make sure to have a local operating permit available and observe the associated
conditions. In addition to this you must observe environmental requirements and
local laws on the following points:
• Safety of work materials and tools (safety equipment and maintenance)
• Disposal of products (laws on wastes)
• Disposal of materials (laws on wastes)
• Cleaning (cleansing agents and disposal)
Connections
Operators shall make sure prior to operating the instrument that during installation
and initial start-up the local regulations (such as regulations for electrical connection)
are observed.
page 16 NivuLink Micro - Re v. 02/13.11.2018
2.6 Personnel requirements
Installation, commissioning and maintenance shall be executed only by personnel
meeting the demands as follows:
- Expert personnel with relevant training an appropriate qualification
- Personnel authorised by the plant operator
Qualified personnel
within the context of this documentation or the safety notes on the product itself are
per-sons who are sufficiently familiar with installation, mounting, starting up and
operation of the product and who have the relevant qualifications for their work; for
example:
I. Training, instruction or authorisation to activate/deactivate, isolate, ground,
and mark electric circuits and devices/systems according to the safety engineering standards.
II. Education and instruction according to the standards of safety engineering
regarding the maintenance and use of adequate safety equipment.
III. First aid training
2 Safety
NivuLink Micro - Rev. 02/13.11.2018 page 17
Instruction Manual
3 Shipping, Storage and Transpor t ation
3.1 Delivery
The standard NivuLink Micro data logger comes with:
•1 x user manual with declaration of conformance. The manual describes all
steps needed to install and operate the instrument.
• 1 x NivuLink Micro data logger
• 1 x standard antenna model: NLF0 ANT MULT SMA
• 1 rechargeable battery pack NLG0 AP5414
3.2 Reception inspection
Check the packaging for visible damage immediately after receipt. Any possible damage in transit shall be instantly reported to the carrier. Furthermore a
written report shall be sent to NIVUS GmbH in Eppingen.
Incomplete deliveries shall be reported in writing either to your local representative or
directly to the NIVUS head office in Eppingen within two weeks.
NivuLink Micro
Important note
Mistakes cannot be rectified later.
3.3 Storing
Observe the minimum and maximum values on environmental conditions such as
temperature and humidity according to chapter 5.5 Specifications.
The measurement transmitter shall be protected from corrosive or organic solvent
vapours, radioactive radiation as well as strong electromagnetic radiation.
Always store the instrument in its original packaging.
3.4 Transportation
Although the NivuLink Micro and its sensors are designed for operation in
challenging industrial environments, the device should be protected against shocks,
impacts, shaking and vibrations.
Use the original packaging for transport.
3.5 Return
For returns please proceed as follows:
•Fill in a return form and send it with your return. Each return should be accom-
panied by one return form. You will find the return form in the service area of
the NIVUS homepage. The RMA no. must be specified. Please call the hotline+49 (0)7262 9191-841 for the RMA no.
•In case of a required reshipment return the unit at customer cost to NIVUS
GmbH in Eppingen using the original packaging.
Insufficiently franked shipments will not be accepted.
page 18 NivuLink Micro - Re v. 02/13.11.2018
4 Principle of operation
The NivuLink Micro is a compact, portable device that scans, processes, stores and
transmits (depending on the settings) analog or digital inputs from different industrial
interfaces. It has 4 universal inputs that can be configured in different analog or
digital modes. There are 2 outputs available, as well. The input data are stored in a
buffer along with the output states. The stored data are transmitted to a server, like
the Nivus web portal. The data are transmitted wirelesly via GPRS/UMTS at
adjustable intervals. This server can be accessed with a client, where a web browser
is installed. The data can also be read with the NIVUS DataHub software that is
installed on a client and output as a csv file or as csv files. The NivuLink Micro is
configured via this link, as well.
4 Principle of operation
Fig. 4-1: Operating principle of the NivuLink Micro
NivuLink Micro - Rev. 02/13.11.2018 page 19
Instruction Manual
5 Product spe c if ication
5.1 Overview
NivuLink Micro
1 Lock
2 Cover
3 Enclosure
4 SMA connector
5 Holes for wall mounting
6 Cable glands
Fig. 5-1: NivuLink Micro: Exterior view
page 20 NivuLink Micro - Re v. 02/13.11.2018
5 Product specification
1 SMA connector
2 Cable glands
3 Card holder for nano-SIM card
4 Jack for external power supply
5 Battery jack
6 RS232/485 port
7 Button for configuration mode
8 Status LEDs
9 Micro USB socket
10 Terminal strip
Fig. 5-2: NivuLink Micro: Interior view
NivuLink Micro - Rev. 02/13.11.2018 page 21
Instruction Manual
Red
Yellow
Green
Status
on
on
on
Operating mode, NivuLink Micro is scanning or transon
off
on
Configuration mode
off
off
off
Sleep mode or the battery is discharged
PIN
Assignment
1
+V
2
+V
3
GND
4
Temperature sensor input
5.2 Device identification
The instructions contained within this manual are valid only for the type of device
specified on the title page.
The device label for the NivuLink Micro is attached to the outside of the enclosure
and contains the following information:
• Name and address of the manufacturer
• CE label
• Information on type and series, serial no. if available.
NivuLink Micro
Fig. 5-3: Device label on the NivuLink Micro data logger
5.3 Device status
The LEDs (Fig. 5-2) show the status of the NivuLink Micr o.
5.4 Pin assignment
5.4.1 Battery
Battery pin assignment:
mitting data
bat
bat
page 22 NivuLink Micro - Re v. 02/13.11.2018
PIN
Assignment
1
GND
2
8 to 30 V DC
PIN
Assignment
1
Contact A
2
Contact B
3
V
4
GND
5
Universal input 1
6
Universal input 2
7
GND
8
Universal input 3
9
Universal input 4
5.4.2 External power supply
Assignment of PINs in the socket for the external power supply:
5.4.3 Universal inputs
5 Product specification
1 Pin assignments
2 Terminal strip
Fig. 5-4: NivuLink Micro terminal strip
Take off the terminal strip by lifting it up. You can then see the pin assignments on
the board.
Weight: approx. 900 g
Protection: IP68
Dimensions: (WHD) 86 x 159 x 62mm
(without antenna)
for status indication
Configuration via MicroUSB port to PC
Analog:
-0/4 to 20 mA: max. 22 mA, load: 100 Ω
Analog: 0-20 mA; 4-20 mA, 0 -2 V; 0-10 V
Digital:
Low power m ax. 32 V, low <100 mV, high >200 mV, load:
220 kΩ
High power max. 32 V, low <1.3 V, high >2.7 V, load: 8 kΩ
Pulse counter (interval, daily, infinite counter):
Frequency 1-1000 Hz
max. 160 mA or 30 V max. 160 mA
1 x floating contact: max. 48 V, max. 320 mA, max. 500 Hz
Range: -16 to +16 g
Resolution: 1 g
Temperature inside enclosure
Range: -40 to +85 °C
Resolution: 1 °C
Humidity in enclosure
Range: 0 to 100% rH
Resolution: 0.004% rH
page 24 NivuLink Micro - Re v. 02/13.11.2018
Data transmission
GPRS/GSM/UMTS depending on availability and nano-
6 Installation
6.1 General Installation Instructions
For electric installation the local regulations in the respective countries (in Germany
e. g. VDE 0100) must be referred to.
Before powering the device / inserting the battery, fully check the NivuLink Micro
installation and sensors, and ensure everything is correct. This device should only be
installed by professional and suitabley trained technicians. All legally-binding norms,
laws, technical regulations and health and safety guidelines should be followed.
The device has protection rating IP68.
6 Installation
SIM card.
- Frequency bands used by the modem:
850 MHz / 900M Hz / 1800 MHz / 1900 MHz
6.2 Installing and connecting the NivuLink Micro
CAUTION
CAUTION
Risk of injury or damage to device by incorrect installation
− Be sure to install the device properly!
− Follow all mandatory and technical guidelines!
Risk of damaging device
− Do not use the NivuLink Micro with an open cover outdoors!
NivuLink Micro - Rev. 02/13.11.2018 page 25
Instruction Manual
6.2.1 Selecting the place of installation
Be aware of the following when deciding where to install the NivuLink:
Important
Das NivuLink Micro is not approved for use in closed channels.
Important Note
Do not use the NivuLink Micro
NivuLink Micro
− in hospitals and / or near medical devices, like pacemakers or hearing aids
− near highly flammable zones, such as gas stations, storage facilities for
flammable materials, chemical plants and explosive sites
−near flammable gases, vapors or dust
Avoid as well the following:
•direct sunlight – to prevent the unit from heating up excessively (use a weather-
proof cover if necessary, such as the NIVUS Weatherproof Cover, item no.
ZMS0180000)
• objects emitting a lot of heat (ambient temperature: -20 to +60°C)
• objects with strong electromagnetic fields (frequency converters, contactors,
electric motors requiring highly rated input currents, or similar)
• corrosive chemicals or gases
• mechanical shock
• installation close to footpaths or drives
• vibrations
• radioactive radiation
page 26 NivuLink Micro - Re v. 02/13.11.2018
6.2.2 Enclosure Dimensions
6 Installation
Fig. 6-1: Enclosure dimensions of the NivuLink Micro in mm
NivuLink Micro - Rev. 02/13.11.2018 page 27
Instruction Manual
space on the underside of the instrument for cable connections.
6.2.3 Installing the NivuLink Micro
Important Note
Observe to leave enough space at the top for antenna installation. The space requirements depend on the antenna used. Do not forget to leave approx. 15 cm of
NivuLink Micro
Fig. 6-2: Installation holes
Procedure:
•Tightly screw the NivuLink Micro through the holes in the enclosure (1) to a
suitable surface, like a wall.
page 28 NivuLink Micro - Re v. 02/13.11.2018
6.3 Fitting the antenna
6.3.1 Safety precautions for fitting the antenna
6 Installation
WARNING
6.3.2 Connecting the antenna
WARNING
Risk of injury from electric shock
− Before connecting the antenna, power off the NivuLink Micro.
Important
− Use only antennas that are supplied, or recommended by the manufactur-
er.
− The antenna must be at least 20 cm away from people.
− The antenna should not extend beyond the lightning-protected area of
buildings, and it must be protected against lightning!
Risk of injury from electric shock
− Before connecting the antenna, power off the NivuLink Micro.
Important
− Gently tighten the antenna.
− Tighten the antenna manually; do not use any tools.
Procedure
1. Disconnect the NivuLink Micro from the power source.
2. Connect the antenna to the antenna connector and carefully tighten by
hand.
3. Reconnect the system to the power supply.
NivuLink Micro - Rev. 02/13.11.2018 page 29
Instruction Manual
6.4 Open / close the NivuLink Micro enclosure
NivuLink Micro
CAUTION
1 Lock
2 Screws
3 Cover
Fig. 6-3: NivuLink Micro enclosure
Tool required
• T20 torx tor que screwdriver (TX20)
Open enclosure
Procedure
Water damage to device
− To best protect NivuLink Micro against moisture, open the cover from
above if it is raining or if you are in a place where water might enter the device.
1. If you are using an external power supply or a charger, disconnect them
from the NivuLink Micro
2. Open the lock (1)
3. Unscrew the screws (2)
4. Open the cover (3)
page 30 NivuLink Micro - Re v. 02/13.11.2018
6 Installation
Close the enclosure
Procedure
Important Note
Particles and pieces of dirt can damage the seal inside the cover.
− Before you close the enclosure, remove any particles and pieces of dirt.
The manufacturer will not accept responsibility for damage to the device caused by
leaky or damaged seals, or if the cover is incorrectly closed.
1. If necessary, remove any particles and dirt from the seal inside the cover
2. Close the cover (3)
CAUTION
CAUTION
Device damage caused by dirt or water
If dirt or water enters the terminal compartment, the protection class for the device
is no longer valid.
− Close the terminal compartment with the cover and the two screws so that
no water or dirt can enter.
3. Make sure the cover is correctly closed and that no particles are caught
between enclosure und cover.
Risk of damage to device
If the screws are tightened with the incorrect torque, the protection class for the
device is no longer valid.
−Tighten the screws with 1.50 Nm torque.
4. Insert screws (2) and tighten with 1.50 Nm torque
5. Tightly press lock (1) against the enclosure until it snaps into place.
The lock is closed
NivuLink Micro - Rev. 02/13.11.2018 page 31
Instruction Manual
6.5 Insert / change the nano-SIM card
You can activate the PIN for the nano-SIM card before you insert the card in the
NivuLink Micro.
Note
Enable the PIN to block unauthorized use of the nano-SIM card in the event of
theft!
Activate PIN
Procedure
1. Put the nano-SIM card in a mobile phone
2. Activate PIN
3. Take the nano-SIM card out of the phone
The PIN is activated.
NivuLink Micro
You will need the PIN to configure the modem, see Sect. 7.4.3 “Basic
settings”.
Put / replace the nano-SIM card in the NivuLink Micro
Procedure
1. Open the NivuLink Micro enclosure, as described in 6.4 "Open / close
the NivuLink Micro enclosure"
2. Optional: remove the nano-SIM card from the card holder
3. Slide the nano-SIM ca rd into the card holder. Make sure the contacts on
the card are facing the board.
4. Close the NivuLink Micro enclosure, as described in 6.4 "Open / close
the NivuLink Micro enclosure"
Fig. 6-4: Slide i n the nano-SIM card
page 32 NivuLink Micro - Re v. 02/13.11.2018
6.6 Electrical installation
6.6.1 Safety notes on cabling
6 Installation
WARNING
WARNING
CAUTION
Risk of electric shock
− Before connecting the sensors / actuators, power off the NivuLink Micr o .
− Only connect cables when they are de-energized.
Risk of disturbance due to electrical interference
− To avoid disturbances from electrical interferences, the sensor cable must
not be laid close to (or parallel to) engine (motor) supply lines or high volt-
Personal or material damages due to improper handling
age power lines. The installation of sensors in open flumes, channels or
water bodies always requires preceding planning. Installation options here
are highly individual.
− Any work on electrical connections should be carried out with the power
supply disconnected.
− To prevent possible damages the installation as described in the following
chapter should be carried out by qualified personnel only.
− Observe all applicable legal and operational guidelines and requirements.
− Prior to beginning installation works necessarily ensure compliance with all
occupational health and safety regulations.
CAUTION
CAUTION
Risk of tripping or damage due to improper layout of cables
Lay the cables so as to protect them from
− being walked on or pinched
− sharp bends and curves
Device damage from electrical power
Before making the electrical connections, switch off the power supply / disconnect
the battery.
NivuLink Micro - Rev. 02/13.11.2018 page 33
Instruction Manual
NivuLink Micro
void.
CAUTION
6.6.2 Notes on cabling
Damage due to weather influences
The instrument will be damaged as soon as water is leaking into the enclosure.
The NivuLink Micro is shipped with the following cable glands:
• 2 x thread adapter M16 x 1.5
• 1 x plug for thread adapter M16
Cables with the following external cross-sections can be used with the shipped
thread adapters:
•M16 x 1.5 5 – 9 mm
Important Note
− In case of rainfall or any other poor weather conditions causing precipitation
or potential ingress of water from above the NivuLinkMicro shall be protected appropriately from water leaking into the enclosure
− Make sure to protect the enclosure against ingress of water
− Do not operate NivuLinkMicro out in the field with the cover opened
The protection rating IP68 is not guaranteed if cables with diameters greater than
these values are used.
Important Note
Before initial startup:
Close any unused cable glands with a suitable plug. Otherwise, the protection rating for the NivuLink Micro is not guaranteed and the manufacturer's war ranty is
page 34 NivuLink Micro - Re v. 02/13.11.2018
6.6.3 Connecting the sensors / actuators
Important Note
Note the maximum wire diameter is 1.5 mm² without wire end sleeve, and 1.0 mm²
with wire end sleeve.
6.6.3.1 Wiring diagrams
To connect sensors und actuators, please refer to the wiring diagrams below. For the
colors of the cables and cores, please refer to the user manuals for the sensors /
actuators.
Up to 4 sensors / actuators can be connected to the NivuLink Micro as per these
wiring diagrams.
6 Installation
Fig. 6-5: Connecting a 2-wire probe to the NivuLink Micro
Fig. 6-6: Connecting a 3-wire probe to the NivuLink Micro
NivuLink Micro - Rev. 02/13.11.2018 page 35
Instruction Manual
NivuLink Micro
Fig. 6-7: Connecting an active 4-20 mA output to the NivuLink Micro
Fig. 6-8: Connecting a non-isolated contact to the NivuLink Micro
page 36 NivuLink Micro - Re v. 02/13.11.2018
6.6.3.2 Typical wiring schemes
The wiring diagrams below illustrate typical wiring schemes with sensors and / or
actuators. For the colors of the cables and cores, please refer to the user manuals
for the sensors / actuators.
6 Installation
Fig. 6-9: Connecting 2 x 2-wire probes to the NivuLink Micro
Fig. 6-10: Connecting 4 x 2-wire probes to the NivuLink Micro
NivuLink Micro - Rev. 02/13.11.2018 page 37
Instruction Manual
NivuLink Micro
Fig. 6-11: Connecting 4 x active 4-20 mA outputs to the NivuLink Micro
Fig. 6-12: Connecting 4 contacts to the NivuLink Micro
page 38 NivuLink Micro - Re v. 02/13.11.2018
void.
6.6.3.3 Connecting sensor / actuator
Please follow the safety notes in Sect. 6.6.1 "Safety notes on cabling"
Steps 1 and 2 are necessary only if the NivuLink Micro is already in service and you
want to make some changes to its function / the sensors.
Procedure:
1. Open the NivuLink Micro cover, as described in 6.4 "Open / close the
NivuLink Micro enclosure".
6 Installation
WARNING
Risk of injury from electric shock
− Before connecting the sensors / actuators, power off the Niv uL in k Micro.
− Work on cables only when they are de-energized.
2. Remove the battery plug from the board.
3. Insert the cables for the sensors / actuators through the cable gland(s)
into the device.
Important Note
To ensure the enclosure is sealed, you should insert only 1 cable through each of
the two cable glands.
4. Connect the sensors / actuators (max. 4) with the desired universal inputs and outputs in the terminal st rip.
Make sure the device is de-energized while carrying out this work!
5. Tighten the cable glands to secure the cables.
Note the approved cable diameters (5 - 9 mm) from Sect. 6.6.2 "Notes
on cabling".
6. Close an unused cable gland with the supplied plug.
Important Note
Close any unused cable glands with suitable plugs. Otherwise, the protection rating for the NivuLink Micro is not guaranteed and the manufacturer's warranty is
7. Re-connect the battery with the board.
8. Close the enclosure, as described in 6.4 "Open / close the NivuLink
Micro enclosure".
Be sure you don't squeeze the cables (battery / antenna).
NivuLink Micro - Rev. 02/13.11.2018 page 39
Instruction Manual
charger, must be connected.
Battery life in days
Storage cycle
GPRS transmission cycle [hrs.]
1
12
24
36
39
39 2 67
76
77 3 93
112
113
135
180
183
205
330
340
248
457
475
313
739
788
361
1070
1174
Battery life in days
Storage cycle
GPRS transmission cycle [hrs.]
1
12
24
54
61
61 2 97
118
119 3 131
172
174
254
475
495
293
635
671
347
956
1039
382
1280
1433
6.6.4 The NivuLink Micro power supply
The NivuLink Micro can be powered with a battery or a power supply unit.
Important Note
If the modem is switched off, the device can be powered via the USB port. If the
modem is switched on, an additional power source, like a battery or an external
6.6.4.1 Battery life
The battery life depends on many factors. The tables below give an overview of the
expected battery service lifetimes (these values are for information purposes only
and are non-binding).
NLG with I-Sensor at 17.5 mA
(min)
NivuLink Micro
1
5
10
15
30
60
NLG with pressure probe at 4 mA
(min)
1
5
181 271 277
page 40 NivuLink Micro - Re v. 02/13.11.2018
10
15
30
60
The battery should be fully charged before use.
6.6.4.2 Connect / remove battery
Important Note
All rechargeable batteries with integrated, rechargeable energy accumulators are
shipped with a charge of max. 30%, in accordance with transportation regulations.
Connect battery
Procedure
1. Open the NivuLink Micro enclosure, as described in 6.4 "Open / close
the NivuLink Micro enclosure"
2. Insert battery into battery socket
All 3 LEDs light up, the NivuLink Micro is powered on.
3. Close the NivuLink Micro enclosure, as described in 6.4 "Open / close
6 Installation
the NivuLink Micro enclosure"
Remove battery
Procedure
1. Open the NivuLink Micro enclosure, as described in 6.4 "Open / close
the NivuLink Micro enclosure"
2. Press the clip on the battery connector against the connector and pull
the connector out of the battery socket
3. Close the NivuLink Micro enclosure, as described in 6.4 "Open / close
the NivuLink Micro enclosure"
NivuLink Micro - Rev. 02/13.11.2018 page 41
Instruction Manual
7 Initial startup
7.1 Initial startup of system
We recommend that the NivuLink Micro is operated first in the office before it is
permanently fitted on site. Create a data point during initial operation for operation
later on site on the Device-to-web server (see "User manual for device-to-web
server" – upon request) and specify a data-point configuration (se e Sect. 7.4 "Using
the NivuLink Micro configuration tool"). Familiarize yourself with the NivuLink Micro
functions in a suitable test setting. Simulate the sensors with test I/Os to optimize the
NivuLink Micro configuration before placing the device in operation on site. This will
reduce the amount of work needed during the actual startup later on site.
7.2 Notes to the user
Before connecting and operating the NivuLink Micro the instructions below shall be
followed.
This user manual contains all information needed for programming and operating the
NivuLink Micro. The manual is intended for qualified personnel. Appropriate
knowledge in the areas of instrumentation and electronics are preconditions for
putting the NivuLink Micro into operation.
Read this instruction manual carefully in order to guarantee proper function of the
NivuLink Micro.
NivuLink Micro
For assistance with installing, connecting the device, or programming, you can
contact us on our hotline:
•+49 (0) 7262 9191-841
7.3 General principles
The NivuLink Micro shall not be put into operation before the installation has been
finished and checked. To exclude faulty programming this instruction manual must
be read before the initial start-up. Using the user manual, familiarize yourself with the
operation of the NivuLink Micro before you configure the device.
First connect the sensors / actuators (according to Sect. 6.6.3.3 "Connecting the
sensors / actuators”); then, configure the NivuLink Micro with the NivuLink Micro
configuration tool. You will need to specify the following:
• Sensors used and positioning (zero offset)
• display units
• span and function of analog and digital outputs
The user interface of the NivuLink Micro configuration tool was designed in a way
that even unfamiliar users are able to easily set up basic settings in dialog mode
which ensure reliable device operation.
For extensive programming, difficult hydraulic conditions, in case of absence of
expert staff or if a setup and error protocol is required, the programming should be
carried out by the manu-facturer or an expert company which is authorised by the
manufacturer.
page 42 NivuLink Micro - Re v. 02/13.11.2018
charger, must be connected.
7.4 Using the NivuLink Micro configuration tool
To configure t he NivuLink Micro you will need the NivuLink Micro configuration tool
software. You can download the NivuLinkMicro configuration tool in the
Download center. Follow the installation instructions to inst a ll the NivuLink Micro
configuration tool on your system.
The configuration covers:
• configuration of the 4 universal inputs
• configuration of the wireless data transmission to a server, like the Nivus web
portal
Reading out and processing the data from the NivuLink Micro with the
NICOS process control system, see the NICOS Studio manual
Reading the data from the NivuLink Micro with the NIVUS DataHub
software, see the NIVUS DataHub documentation
7 Initial startup
NIVUS
Important Note
If the modem is switched off, the device can be powered via the USB port. If the
modem is switched on, an additional power source, like a battery or an external
NivuLink Micro - Rev. 02/13.11.2018 page 43
Instruction Manual
7.4.1 Splash screen for the NivuLink Micro configuration tool
Executing the NLM_ConfigTool.exe file (double click) will open the start screen of the
NivuLink Micro configuration tool.
NivuLink Micro
1 Indicates the link status, here: disconnected
There i s a detailed description in the next figure (Fig. 7-2).
2 Opens a drop-down menu where the configuration level can be selected:
Normal: Standard screen with the standard options
Extended: Extended screen with other options
Service: Servic e screen. This screen can only be opened by NIVUS Service
technicians
3 Opens the drop-down menu to select the language for the configuration tool:
German / English.
page 44 NivuLink Micro - Re v. 02/13.11.2018
7 Initial startup
4 Button Send configuration to device
The button is enabled only if a link to a NivuLink Micro exists.
The button transmits the configuration to the NivuLink Micro and restarts the
NivuLink Micro.
Important Note
If a configuration is transmitted to the NivuLink Micro, a battery or an external
charger must be connected.
5 Button Save configuration as file
The button opens the File Manager to select the storage location for the configuration and to store it in the format *.nlu.
6 Button Load configuration from file
The button opens the File Manager to select a configuration (file format *.nlu)
and to load it.
7 Button Reboot device
This button is enabled only if there is a link to a NivuLink Micro.
The button restarts the NivuLink Micro without a configuration having been
transmitted to it.
8 Selecting tabs, her e: Basic settings, Channels and Thresholds.
The tabs Modem settings and Software-update appear in the extended
screen.
For a description of the tabs and options, please refer to Sects 7.4.3
The button connects to a NivuLink Micro if t he following conditions are met:
- There is no device link (link status = red)
- A NivuLink Micro is in configuration mode and connected via USB cable to
the computer.
2 Text field showing the device ID for the NivuLink Micro to which a connection
is being made or has been made.
3 Shows the link status:
Red: no connection
Yellow: connection is being established
Green: connected
Fig. 7-2: NivuLink Micro configuration tool: Splash screen > Link status
7.4.2 Connect configuration tool with the NivuLink Micro
Required accessories
• Micro USB cable
Prerequisite
• The NivuLink Micro is connected to a power supply.
• The NivuLink Micro configuration tool is open.
Procedure:
1. Put the NivuLink Micro in the configuration mode:
Press the configuration-mode button (Fig. 5-2) until the green LED next
to the button is lit permanently and the yellow LED goes off.
2. Connect the NivuLink Micro with the
Plug the USB cable into the USB ports in the Nivu Lin k Micro and in the
computer
computer:
page 46 NivuLink Micro - Re v. 02/13.11.2018
7 Initial startup
3. Click the Connect to device button on the start screen of the NivuLink
Micro configuration tool
The device ID is displayed in the text field beside the button.
While the link is being established: the link status is shown in yellow.
When the link has been established: the link status is shown in green.
Next steps
• Configure the NivuLink Micro
For a description of the configuration options, please refer to Sects
The following options are available in the Normal screen of the "Basic settings" tab:
• Device name
• Operation mode
• Test mode
• Measuring
• Sensor
• Modem settings
In the extended screen, the following additional options are available:
• Comminication hub
• Time synchronisation
The extended view mode shows the Modem settings option as a separate tab.
Device name
Enter the device name here. This is the name with which the NivuLink Micro
identifies itself with the communication hub.
NivuLink Micro - Rev. 02/13.11.2018 page 47
Instruction Manual
NivuLink Micro
Operation mode
The drop-down menu for the operating mode is available here with the options
•Interval: The NivuLink Micro goes into sleep mode after every scan to save en-
ergy. The data are transmitted a fter the configured transmission interval.
•Permanent: The NivuLink Micro remains switched on and transmits every
measurement immediately
Additionally, you can activate/deactivate the test mode.
•Test mode: once test mode is enabled (= checked) NivuLink Micro will transmit
five measurements directly on the first start-up. This allows you to verify whether a connection to the server can be set up and whether all settings are correct.
Measuring
1 Entry field for the scan interval in minutes (= measurement interval)
2 Drop-down menu to select transmission periods:
Interval: 3 = specify the transmission interval in minutes (= interval of data
transmission to communication hub)
Fixed time: 3 = specify a fixed point in time for daily transmission of data to
the communication hub; format HH:MM (e. g. 14:00)
3 Input field for transmission interval or time (see 2)
Configure the GPS coordinates of the position of your NivuLink Micro here. These
coordinates are used to indicate the position in the device overview of the web portal
later. The position of the NIVUS headquarters is shown if no values are specified
here.
Modem settings
The modem settings for operation with the nano-SIM card are made here.
1 The drop-down menu opens to allow you to select one of the defaults
NIVUS card / Telekom / Vodafone: The next fields 2 – 4 are filled automatically
2 Entry field for the APN (= access point to a mobile network) of the mobile
network for the data transmission
3 Entry field for the user name (optional)
4 Entry field for the password (optional)
5 Entry field for a PIN
If the nano-SIM card is configured so that the system requests the PIN to be
entered when the modem is switched on, then the PIN must be entered here.
Enable the PIN to block unauthorized use of the nano SIM card in the event of
theft!
NivuLink Micro - Rev. 02/13.11.2018 page 49
Instruction Manual
NivuLink Micro
Communication hub
This option is available only in the extended screen.
The broker is the counterpart (server) to which the data are transmited from the
NivuLink Micro.
1 Drop-down menu to select the server to which data from NivuLink Micro are
to be sent. Options: NIVUS server and Own server. Choosing Own server
enables input fields 2 – 5.
2 Entry field for the target IP address or the target domain
3 Entry field for the target port
4 Entry field for the user name
5 Entry field for the password
Fig. 7-6: NivuLink Micro configuration tool: Basic settings > Communication
hub
Time synchronisation
This option is available only in the extended screen.
1 Entry field for the time server to be used for the time synchronization of the
NivuLink Micro
2 Entry field for the time server port
3 Entry field for the synchronization interval in hours
An active modem link is needed for the time synchronization. For a longer battery
service life, the synchronization interval should not be smaller than the transmission interval (see "Measurement option").
7.4.4 Modem settings
The Modem settings tab is available only in extended view mode.
For a description of the modem settings, please refer to Sect
7.4.3 "Basic settings“ > Modem settings.
page 50 NivuLink Micro - Re v. 02/13.11.2018
7.4.5 Measurement channels
The following options are av ailable in the Channels tab:
• External channels: Option for configuring the external sensors.
• Internal channels: This option is enabled only in the Service screen.
External channels
Configure the external sensors here.
The NivuLink Micro has 4 universal inputs. Each universal input is configured in one
double line.
7 Initial startup
1 Enable / disable the input
2 Entry field for the name of the input
3 Drop-down menu where the input mode is selected.
The table below contains a detailed description of the modes.
4 Drop-down menu to select the calculation method: Factorization, Formula
or Interpolation
The selection is relevant only as soon as Calculation (7) is enabled
(=checked) ist.
5 When (4) = Factorization: input field for the factor
When (4) = Formula: input field for the formula
6 Opens the value table used to configure the interpolation values
7 Enables / disables the further calculation of measurement values
8 Enables / disables the switching contact which can be set on the server
(switching contact can only be set in Permanent operation mode.)
Entry field for the decimal places for
the output unit.
Digital
Transmits
nals
invert
Checkbox ticked: The signal is
Counter High
Counts and
Impulse
Entry field for the value the pulse
should have.
Unit
Entry field for the pulse output unit.
Decimal
Entry field for the decimal places for
Modi
More fields are blended in depending on the mode.
the unscaled
digit values
from the
4-20 mA
0-10 V
2-10 V
Counter Low
7.4.6 Thresholds
Here you can define high and low limit values for each of the four inputs. These limit
values can be used to adjust measurement and transmission intervals.
Observe the following notes:
corresponds
with the
sensor
range.
digital sig-
transmits the
high edges
or low edges
of a cou nter.
places
urements w.r.t. the output unit.
measurement is converted to this
transmitted inverted.
the output value.
• The setting is active only when the option box is checked (5).
• The values set in the Upper Limit (1) and Lower Limit (3) input fields relate to
the scaling selected in the Measurement Channels tab.
•If a fixed point in time has been specified as transmission time in the basic set-
tings, the setting made here will overwrite this transmission time and will replace it by the interval transmission configured here.
page 52 NivuLink Micro - Re v. 02/13.11.2018
7 Initial startup
The example below shows the limit value configuration e.g. of input 1.
1 Input field for upper limit value
2 Fields for measurement or transmission interval in minutes
3 Input field for lower limit value
4 Fields for measurement or transmission interval in minutes
5 Enables / disables the according option
7.4.7 Software Update
The Software-Update tab is available only in the extended screen.
You can update the NivuLink Micro software here.
1 Opens the File Manager to select the new software
2 Shows the selected software
3 Loads the selected software to the NivuLink Micro and restarts it
Requisite: There must be a link to a NivuLink Micro
NivuLink Micro - Rev. 02/13.11.2018 page 53
Instruction Manual
8 Maintenance and Cleaning
NivuLink Micro
DANGER
WARNING
CAUTION
Health hazard due to germs
Wastewater may be contaminated with dangerous germs.
− Should the measurement system be used in the wastewater area make
Danger by electric voltage
Prior to beginning maintenance, cleaning and / or repair works (to be executed by
qualified expert personnel only):
Damage due to improper maintenance, repairs or cleaning
Improper maintenance, repairs or cleaning can damage the NivuLink Micro / the
sensors and cause the device to malfunction.
sure to take respective precautions when getting in contact with system,
transmitter, cables and sensors.
− Always wear protective clothing.
− disconnect the device from mains power supply or disconnect the re-
chargeable battery
− Safeguard the higher system from restarting.
− Maintenance, cleaning or repairs should be carried out by qualified techni-
cians only.
8.1 Installation of spare parts and parts subject to wear and tear
We herewith particularly emphasise that replacement parts or accessories not
supplied by NIVUS moreover are not certified and approved by NIVUS too.
Installation and/or the use of such products hence may negatively influence
predetermined constructional characteristics of the measurement system or even
lead to instrument failures.
NIVUS cannot be held responsible for any damage resulting due to the use of nonoriginal parts and non-original accessories.
You can find original manufacturer spare parts or accessories in chapter
9 “Spare parts and accessories” and/or in the valid price list
8.2 Maintenance
8.2.1 Maintenance interval
The NivuLink Micro is conceived to be virtually free of calibration, maintenance and
wear (requirements of the Industrial Safety Regulations are unaffected).
NIVUS recommends having the entire measurement system inspected by the NIVUS
customer service once per year.
NIVUS recommends to have the measurement system completely be inspected by
the manufacturer after latestten years.
Generally the verification of instruments and sensors is a basic measure in order to
improve operational reliability and to increase the lifetime.
page 54 NivuLink Micro - Re v. 02/13.11.2018
8.2.2 Customer Service Information
For the recommended annual inspection of the entire measurement system and/or
the exten-sive inspection after latest ten years contact our customer service:
NIVUS GmbH – Customer Service
Phone +49 (0) 7262 9191 - 922
Customercenter@nivus.com
8.2.3 Standard maintanance
Regularly check the following
• that the NivuLink Micro is not mechanically damaged
• that all joints and connections are properly sealed and not corroded
• that there is no physical damage to cables
8.2.4 Charging the battery
8 Maintenance and Cleaning
CAUTION
CAUTION
Risk of injury and risk of material damage
− Do not charge the battery on a combustible surface.
− Be present while the battery is charging.
Material damage caused by using an incorrect charger
The battery can be irreversibly damaged if the wrong type of charger is used: the
cells can be drained or an explosion can occur, for example.
− Use charger NLG0 LAD AP 5414 only.
Important Note
Batteries wear out and discharge over time. They also loose charge at high / low
temperatures as well as when they are used a lot.
Current transportation guidelines dictate that all batteries with an integral
rechargeable energy accumulator are shipped with a charge of max. 30%. If the
device uses an external charger (V IN) when is service, the battery will be
continuously charged by the charging regulator in the NivuLink Micro.
If no external charger (V IN) is available during production, the battery must be fully
charged before initial startup.
NivuLink Micro - Rev. 02/13.11.2018 page 55
Instruction Manual
8.3 Cleaning
8.3.1 NivuLink Micro
NivuLink Micro
CAUTION
8.3.2 Sensors
Equipment damage due to improper cleaning
Improper cleaning may damage the logger / the sensors which may lead to measurement failure.
− Do not clean the instrument with scouring, scratching or abrasive tools or
media.
− Do not use organic solvents to clean logger, sensors and sensor cables.
− Do not clean the logger / the sensors with high-pressure cleaners.
− Do not use sharp cleansing agents or solvents.
Clean the NivuLink Micro enclosure if required using a dry, lint-free cloth. For heavy
dirt wipe the enclosure with a damp cloth.
The hints on how to maintain and to clean the sensors shall be necessarily
observed. These hints can be found in the according technical description or the
according instruction manual.
The technical description or instruction manual is part of the standard sensor
delivery.
page 56 NivuLink Micro - Re v. 02/13.11.2018
Enclosure seal
Cable gland
M16 x 1.5
Plug
for threaded adapter M16 x 1 .5
Analysis (software)
Specified by customer
Power supply
Suitable power supply, 8 to 30 V
Battery pack
Item No.: NLG0 AP 5414
Charger for battery pack
Item No.: NLG0 LAD AP 5414
Tool set
Art. No.: NLG00 TOOLSET
9 Spare part s and accessories
9.1 Spare parts
9.2 Accessories
9 Spare parts and accessories
a) in the customer's NICOS process control system
b) on a server in the NIVUS web portal
c) NIVUS DataHub: outputting csv files for analysis
Nominal voltage: 3.6 V
Charging voltage: 4.2 V
Nominal capacity:17.4 Ah
Nominal energy: 62.6 Wh
NLG0 AP xxx
Input: 100 - 240 V AC (50 - 60 Hz)
Output: 12 W; 4.1 V; 2. 4 A
Delivery:
- 1 x USB mi cro data cable
- 1 x slot screwdriver
- 1 x Torx screwdriver
NivuLink Micro - Rev. 02/13.11.2018 page 57
Instruction Manual
10 Dismantling / Dis posal
10.1 Disassembling / disposing of the NivuLink Micro
Incorrect disposal may be a potential threat to the environment.
Always dispose equipment components and packaging material according to
applicable local regulations on environmental standards for electronic products.
Procedure
1. Disconnect the NivuLink Micro from the grid
2. Remove battery, if necessary, and dispose of it separately
3. Disconnect the cables with suitable tools
4. Remove the NivuLink Micro from its fixture
EU WEEE Directive
NivuLink Micro
This symbol indicates that the Directive 2012/19/EG on waste electrical and electronic equipment requirements shall be observed on the disposal of the equipment.
The unit contains a buffer battery (Lithium coin cell), which must be disposed separately.
10.2 Di spose of batteries
When discharged, the battery should not be left in the NivuLink Micro.
Be sure to dispose of batteries in an enviromentaly friendy manner. Return used
batteries to the manufacturer or drop them off at a recycling center.
page 58 NivuLink Micro - Re v. 02/13.11.2018
11 Use cases
11.1 Level monitoring in a closed vessel
11 Use cases
Fig. 11-1: Level monitoring in a closed vessel, e.g., with a sensor
11.2 Level monitoring at a stormwater overflow tank with max. basin level and basin
overflow
Fig. 11-2: Level monitoring at a stormwater overflow tank with max. basin lev-
el and basin overflow
NivuLink Micro - Rev. 02/13.11.2018 page 59
Instruction Manual
EU Declaration of Conformity
NivuLink Micro
page 60 NivuLink Micro - Re v. 02/13.11.2018
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