This page covers installing the IUWS B.One and configuring it with the B.One Device Manager app. The English pages of the manufacturer documents are attached below. Installation and commissioning must be carried out by qualified personnel.
Warning: The meter contains a permanently fitted lithium battery. It must not be recharged, opened, short circuited or burned, and it must not go in household waste.
Good to know: Meters are delivered in sleep mode. If a meter has been stored, keep it frost free, cool and dry. Storage above 35 °C should not exceed 4 weeks.
A new meter is delivered in sleep mode and the display shows SLEEP. Activating it wakes the display and turns the radio on. Use any one of these ways.
Once it is active the display shows readings instead of SLEEP, and the radio symbol shows what the radio is doing. If it stays on SLEEP, or the radio symbol is not what you expect, see Error Codes.
After activation, check the meter has joined its network. The radio symbol and the tables in Error Codes show what the radio is doing.
The meter joins by over the air activation (OTAA). It starts a join procedure with the network, which gives it a device address and sets up the security keys. When the meter is activated it then carries on in the activated state.
Scenarios 319, 324 and 329 are OMS certified for connection to a smart meter gateway. For fault finding on the receiving side, see Wireless MBus Overview and Diagnosis.
Configuration is done over NFC, with a phone held against the meter. You need an NFC enabled Android phone running Android 8 or later with the B.One Device Manager app installed.
Through the same steps you can change the communication scenario, the key date, and switch the radio technology. Because the IUWS supports parallel radio, wireless MBus and LoRaWAN scenarios can be set together.
The optional NDC B.One module adds a radio to a meter, or extends signal in a difficult spot. It is configured with the MinoConnect Bluetooth Radio Set Opto or the K01 Blue 3000 optical head, as set out in the Configuration Manual.
English
Installation and operating instructions
Ultrasonic apartment and residential water meter IUWS B.One
Product description
■
Ultrasonic apartment / residential water meter type
IUWS B.One for cold water up to 50 °C.
■
With ex-works integrated wM-Bus (OMS certified version available) or LoRaWAN® radio interface.
■
There is also the option of connecting an external
radio module (NDC wM-Bus or NDC LoRaWAN®) to the
NDC interface of the meter. In this case, the internal
radio interface is automatically deactivated.
Intended use
For the consumption measurement of cold and clean
drinking water or service water up to 50 °C.
Scope of delivery
■
Ultrasonic water meter type IUWS B.One with exworks integrated wM-Bus or LoRaWAN® radio interface
■
Installation instruction, Declaration of Conformity
Remark
This installation manual is intended for qualified
specialists only. In order to ensure a proper flow
measurement, the measuring device must be completely
filled with water at all times.
NDC modules may be retrofitted to the installation point
of the measuring instrument if required. Retrofitting
should only be carried out by qualified specialists. It is
recommended to secure the modules against unauthorised removal with a user safeguard.
Notes on labeling
MAP = Maximum operating pressure (bar)
T = Maximum operating temperature (°C)
Q3 = Permanent flowrate (m³/h)
∆p = Pressure loss class (KPa)
Permissible installation positions
The IUWS B.One series is intended for "any" installation
position (even overhead).
Activating of the measuring device
Upon delivery, the display of the measuring device is in
“sleep mode”. The display is activated ten seconds after
the measuring device has been filled with water. For this
purpose, the pipeline or measuring device must be completely vented or filled with water. Optional options for
activation: use of the MSS software + MinoConnect Set
USB NFC or by means of the B.One Device Manager app.
The measuring device can be retrofitted with the following NDC modules:
NDC wM-Bus, NDC LoRaWAN®, NDC ‘universal’ (= NDC
module adopts the radio scenario seted in the meter)
General information
■
Water meters are precision devices.
■
Protect against shock and vibration.
■
Store in a frost-free, cool and dry location.
■
Electronic water meters contain lithium batteries.
Storage at temperatures down to -10 °C is safe, provided the device has not yet been activated. A storage
temperature of over 35 °C should not be exceeded for
more than 4 weeks (ideally +15 °C). Long-term storage
in extreme cold or heat outside this temperature range
can damage the battery or greatly reduce its capacity.
■
Suitable measures must be taken to ensure that any
contamination or damage is excluded during transport to the installation location.
■
If this measuring device is used in an EU country, it
is subject to a metrological test of the respective EU
member state.
■
The IUWS B.One series has been approved with a
flow sensitivity class U0/D0 (no inlet outlet section
required). However, to achieve the best measurement
results, we recommend observing national regulations and recognised rules of technology.
■
For the IUW series at least 3xDN are recommended as
a straight inlet section. Ideally, at least 2xDN should be
available as the outlet section.
■
The pipe cross-section should not be reduced or
extended directly in front of or behind the measuring
device.
■
Connection seals must not protrude into the pipe
cross-section.
■
Valves or other flow regulators should be installed
behind of the measuring device if possible.
7
■
■
■
■
■
■
■
I f necessary, the measuring device should be protected by a filter, so that no foreign particles, such as
stones or sand, are flushed into the measuring device
and cause damage.
The measuring device must be protected against pressure surges in the pipe network.
The measuring device may only be installed in a frostproof location and the ambient temperature must not
exceed +55 °C.
The measuring device should be installed, where possible, at the deepest point of the pipe installation so
that air bubbles are not able to form in the measuring
device and the pipe is always completely filled.
The medium temperature must not exceed the permissible 50 °C (T50).
When using lubricants / assembly pastes e.g. for the
seals, it must be ensured that these are suitable for
contact with drinking water.
If there is a risk of frost, shut off the system and empty
it completely (including the measuring device!),
removing the measuring device if necessary.
Safety instructions
■
Note! The device is equipped with a permanently installed lithium battery, which must not be recharged.
This type of battery is classified as dangerous goods
(Hazardous goods class 9). The applicable transport
regulations must be observed! Data sheets, safety
data sheets and test reports of the batteries are
available on request. Please also note the following
general information on handling batteries.
■
Warning! The device contains a non-rechargeable
lithium battery. Attempting to charge the battery will
damage the device and cause injury.
■
Attention! Under no circumstances may the device be
disposed of with normal household waste. Please consult our separate disposal regulations in this manual.
General information on handling lithium batteries or
devices with lithium batteries
Attention! The following must be observed when
handling lithium batteries and devices with lithium
batteries:
■
■
■
■
■
■
■
■
■
■
lose the valves upstream and downstream of the
C
measuring device and relieve the pressure at the
installation point.
Dismantle existing measuring device or adapter piece.
Old seals must be removed immediately after dismantling the existing measuring device or adapter piece.
The corresponding sealing surfaces must be cleaned
and checked for damage.
Check before starting installation:
that all sealing surfaces are plane and free of
damages such as notches, grooves or similar.
all information on the dial/register cap/type
plate must be readable.
the measuring device is suitable in design, size,
temperature range and pressure rating for the
installation site.
Only use new and flawless sealing material.
It must be ensured that the flow direction of the measuring device matches that of the pipe.
Screw on the swivel nuts by hand and tighten with
a suitable tool. Make sure that the seals are seated
correctly.
It must be ensured that the meter is installed in a tensionless state in the pipe. In the case of an installation
that is not tensionless, the housing of the measuring
device can be damaged and water may escape.
To prevent damage to the measuring instrument
caused by pressure surges after installation, the pipe
must be filled slowly after installation.
The measuring instrument must be easily accessible
at all times after installation to guarantee that the key
data and the conformity/metrology mark can be read
at all times.
Check all sealing points for leaks after installation.
We recommend securing the connection points
against unauthorised disassembly with a user safeguard. It should not be possible to remove or loosen
the guard without visibly damaging it.
–
–
–
■
■
■
■
■
■
■
■
Note on short overall lengths
Use a screwdriver/metal rod (Ø max. 5.2mm) or similar
tool to hold the short overall lengths (110mm – 145mm)
when tightening the screw connections.
store protected from moisture
do not heat or throw into fire to avoid explosion
do not short circuit
do not open or damage
do not charge
do not store within reach of children
Installation manual
■
Read the installation instructions carefully right up to
the end before beginning installation.
■
Prior to installing the measuring device, the pipe
system is to be carefully flushed.
8
Segment test / Firmware version:
The segment test will be carried out every 5 minutes.
If required, the segment test can be called up via the
menu level using a smartphone with activated NFC
function. The firmware version can also be read out via
NFC interface if required and is displayed in the NFC
tag.
Consumption value:
DN15 to DN50, 9-digit, with 3 digits after the decimal
place
■
The number of decimal places may vary depending
on the unit, in the case of m³, 3 decimal places are
shown.
■
Leading zeros (pre-decimal positions) of the consumption display are not displayed at the start (display
0.000 or 0.00). These are increased after reaching the
respective volume.
■
In the event of an overrun, all leading zeros are displayed in the consumption display (display 0.000).
■
The actual consumption is fully recorded in the
internal memory and can be retrieved via the NFC
interface.
■
Unit of consumption display: m³ (for the Gal and CF
display units, as well as the x10 or x100 factors, this involves factory-preset programmable country-specific
units / factors).
■
Attention! If the upper measuring limit is exceeded, the
flow rate display is deactivated and FOR = Flow Out of
Range is displayed.
While the flow rate is exceeded, the consumption
progress is not registered. The last overload message is
stored in the error memory as undersized detection.
Data logger
The unit has an extensive data logger.
The data logger is read out using the Android app B.One
Device Manager. The file format can be selected as PDF
or CSV.
Status information / Smart functions / Alarms
The IUW / IUWS B.One meter series has smart
functions. This means that the meter can detect certain
conditions and display warningsor device status
information. The warnings or device status information
can be sent by radio, but can also be shown on the
display.
The following smart functions with associated
numeration can be shown on the display:
Leakage
SF01 Burst
SF06
ReverseInstallation SF02 Dry
SF07
BatteryWarning
SF03 Frost
SF08
Oversized
SF04 Backflow
SF09
Undersized
SF05 NoConsumption SF10
The SFxx system info text is automatically deleted from
the main view after 7 days.
In the case of an active LoRaWAN® communication
scenario, a related radio packet is sent via LoRaWAN®
each time a smart meter function triggers a warning.
If the wM-Bus scenario is active, the device status
information (e.g. device error, battery warning) is sent
in the header of the radio telegram.
Disposal
This device contains a non-removable and nonrechargeable lithium battery. Batteries contain
substances, which could harm the environment
and might endanger human health if not disposed
of properly. To reduce the disposal quantity so as
unavoidable pollutants from electrical and electronic
equipment in waste, old equipment should be reused
prior or materials recycled or reused as another form.
This is only possible if old equipment, batteries, other
accessories and packaging of the products are returned
to the manufacturer or handed in at recycling centres.
Our business processes tend to make provisions for
us or specialist companies authorised by us to collect
and properly dispose of used equipment, including
batteries, other accessories and packaging materials,
after it has been replaced or at the end of its service life.
Insofar as no other contractual arrangement has been
made in this respect, your local or municipal authority
or the local waste disposal company can give you
information relating the collection points for your
used equipments. ZENNER will always ensure correct
disposal.
Attention
Do not dispose of the devices with domestic waste. In
this way, you will help to protect natural resources and
to promote the sustainable reuse of material resources.
For any question, please contact info@zenner.com
The latest information on this product and the current
version of these instructions can be found at
www.zenner.com
9
Menu display
With an NFC-enabled end device (smartphone or
tablet) and the B.One Device Manager app installed
on it, the following (non-editable) menu displays can
be called up. Bring the NFC device close to the NFC
interface and remove it again. With each new contact,
the next display appears. After the last display, the
display returns back to the main display at the next
contact.
m³
Forward flow volume
Segment test
m³
Return flow volume
Firmware version
m³
m³/h
m³/h
Total consumption value
High resolution test display
Display in milliliters (ml)
Display description
1
Segment test / Firmware version:
The segment test will be carried out every 5 minutes
and after then the firmware version is displayed. After
then the display returns to the main display. The segment test and firmware version can be also queried via
the menu level.
2
3
4
1
2
3
Consumption with unit m³:
- for nominal diameters DN15-DN50: 6 digits before/3 after the decimal point
- for DN50-DN125: 6 digits before/3 after the decimal point
- for DN150-DN300: 7 digits before/2 after the decimal point
Flow direction display in forward flow direction
5
6
7
8
5
Flow direction display in return flow direction
4-digit flow rate display, unit in m³/h;
with automatic point shifting;
the flow rate display is updated every 2 seconds
Data transfer display: Symbols for displaying the join status with LoRaWAN® or the wireless M-Bus radio status.
6
Battery lifetime display: Symbol is activated 15 months prior to fully discharged battery.
7
External power supply: Symbol is activated briefly once an NDC communication module is switched on via the NFC interface
8
Indication of alarm or error messages (those are saved in the data logger and can be read out via the NFC interface)
4
Data transfer display
Status of the
radio symbol in
the LCD display
IUWS B.One with integrated
LoRaWAN® interface
(Communication Scenario 2xx)
No symbol
Radio off
IUWS B.One with integrated
wM-Bus interface
(Communication Scenario 3xx)
IUWS B.One with attached external
NDC radio module
The status of the symbol (visible or not visibRadio off or NDC radio module not
le) does not initially provide any information
yet discovered
about the operating mode of the device
Radio on, but not yet joined to
LoRa network or LoRa network
join failed
<N/A>
(only in case of LoRa) radio on, but
not yet joined to LoRa network or
LoRa network join failed
LoRa network join request was
sent, accept not yet received
wM-Bus packet is being transmitted
<N/A>
LoRa network joined
<N/A>
LoRa network joined
10
Technical data LoRaWAN® radio interface
Operating frequency
868 MHz
Max. Transmission power
approx. 14 dBm, 25 mW
Duration of transmission telegrams
Data transmission procedure
up to 1.5 s (depending on spreading factor)
dependent on the respective meter configuration, e.g. daily;
optional: monthly or 8 telegrams with three hourly values each
LoRaWAN® class A (bi-directional communication)
Encryption of radio protocols
yes
Error detection
CRC
Battery status monitoring
yes
CE conformity
according to directive 2014/53/EU (RED)
Activation of the radio interface
• automatically after the meter has been filled with water (>10s);
• via the NFC interface using the corresponding ZENNER NFC coupler,
MinoConnectUSB and the MSS configuration software
• via the NFC interface using the Android app B.One Device Manager
Sending interval
LoRaWAN® radio interface
Protocol contents general
Interval
Serial number (DevEUI)
one-time upon registration in the LoRaWAN® network
Device-specific information
six-monthly
(Firmware version, LoRaWAN version, device type)
Changes of status
(manipulation, battery warning, ...)
Scenario No.
event-driven
Protocol content
Interval
Monthly value (previous month) [liter], status informatimonthly (beginning)
on, actual date and time
Scenario 201 (monthly)
Scenario 202 (daily)
Scenario 203 (every 3 hours)
Scenario 204 (hourly)
Monthly value (previous month) [liter], mid-month
value [liter], actual date and time
monthly (middle)
Key value and Key date [01.01.]
annually on the key date
Daily value (previous day) [liter]
daily
Status information, actual date and time
monthly
Key value and Key date [01.01.]
annually on the key date
3-hour values [litre]
8 x per day
Status information, actual date and time
monthly
Device-specific information
(Firmware version, LoRaWAN® version, device type)
six-monthly
Device-specific information
(manufacturer, fabrication number, VIF/VIFE)
once at join
Hourly value [litre]
hourly
Status information, actual date and time
monthly
Device-specific information
(Firmware version, LoRaWAN® version, device type)
six-monthly
Device-specific information
(manufacturer, fabrication number, VIF/VIFE)
once at join
11
Technical data wireless M-Bus interface
868 MHz
approx. 14 dBm, 25 mW
approx. 10-15 ms
Depending on meter configuration
Wireless M-Bus (standard C1 mode)
Depending on the meter configuration; Standard Security Profile A,
Encryption Mode 5; Security profile B, mode 7 on request
CRC
yes
according to directive 2014/53/EU (RED)
• automatically after the meter has been filled with water (>10s);
• via the NFC interface using the corresponding ZENNER NFC coupler,
MinoConnectUSB and the MSS configuration software
• via the NFC interface using the Android app B.One Device Manager
Operating frequency
Transmission power
Duration of transmission telegram
Sending interval
Data transmission procedure
Encryption of radio protocols
Error detection CRC
Battery status monitoring
CE conformity
Activation of the radio interface
The selection of possible wireless M-Bus
Scenario No.:
312
313
318*
319*
(OMS)
321
324*
(OMS)
329
(OMS)
342
Frequency (MHz)
868
868
868
868
868
868
868
868
Sending interval
120 s
20 s
300 s
432 s
20 s
20 s
20s
20s
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Daily value (00:00 h)
✓
✓
Key date values
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Telegram content:
Current value
Current date
Actual date and time
Date of previous month
✓
Monthly value of previous month
✓
Another 11 prvious month´s value
✓
Status information
✓
✓
✓
✓
Medium temperature
Subject to technical modifications. We accept no liability for any errors or misprints.
Key date
✓
Ambient temperature
✓
wM-Bus mode
C1
C1
C1
C1
C1
C1
C1
C1
Encryption mode
5
5
7
7
5
7
5
5
* suitable for connection to an SMGW (Smart Meter Gateway)
ZENNER International GmbH & Co. KG
Heinrich-Barth-Straße 29 | 66115 Saarbrücken | Germany
Phone
Fax
+49 681 99 676-30
+49 681 99 676-3100
E-Mail
Internet
info@zenner.com
www.zenner.com
12
CONFIGURATION MANUAL
ULTRASONIC WATER METER
IUWS B.ONE & IUW WITH NDC B.ONE MODULE
Version 1.1, September 18, 2026
Firmware Version 1.8.5
Table of Contents
1
General Information....................................................................................................................... 3
1.1
Intended Use........................................................................................................................3
1.2
Safety Instructions............................................................................................................... 4
2
Required Materials......................................................................................................................... 4
3.
Configuration Possibilities IUWS/IUW........................................................................................... 5
4
5
3.1
Description of the configuration parameters.......................................................................6
3.2
Example: Changing the communication scenario............................................................... 8
NDC B.One Communication Module............................................................................................. 9
4.1
Description of the configuration parameters NDC.............................................................10
4.2
Example: Upgrading the IUW with NDC B.One................................................................... 11
Contact......................................................................................................................................... 13
Page 2
1
General Information
Be sure to read the operating instructions for the IUW/S B.One Ultrasonic Water Meter and for the
B.One Device Manager app before starting the configuration. This will protect you and prevent any
possible damage to the device. Check the contents of the packaging for completeness before the
installation. Installation and commissioning may only be carried out by qualified personnel. Current
applicable laws and regulations as well as the generally recognized rules of technology must be
observed during assembly and installation.
IUWS stands for Inline Ultrasonic Water Meter Small and includes domestic water meters in sizes
DN15-DN50.
IUW stands for Inline Ultrasonic Water Meter and includes bulk water meters in sizes DN50-DN200.
The IUWS series meters feature an integrated radio module. This module is factory configured to
transmit data via wireless M-Bus (compliant with EN 13757-4) or LoRaWAN®, depending on
customer requirements. This ensures maximum flexibility. Using the B.One Device Manager App,
utility providers are able to switch between radio technologies according to infrastructure
requirements or operational processes. Further, the IUWS supports parallel radio, which means that
measurement data can be transmitted via wireless M-Bus and LoRaWAN® simultaneously.
The IUW does not have an internal radio interface. To enable radio functionalities, it can be combined
with an external radio module (NDC B.One).
1.1
Intended Use
The IUWS B.One Ultrasonic Water Meter is used to measure and transmit water consumption and
meter information using ultrasonic sensors. The meter is used in the area of water management and
consumption recording. Users are usually utility companies and service providers in the area of
consumption billing, energy monitoring, etc. Only qualified specialist personnel should carry out the
installation and commissioning of the modules. Operational safety is only guaranteed if the product
is used as intended according to the manufacturer. No liability is accepted for damage caused by
other uses. Any modification is only permitted with the approval of the manufacturer. Otherwise, the
manufacturer’s declaration becomes invalid.
Page 3
1.2
Safety Instructions
General information about the device and safety instructions:
The device is only intended for the designated use. Attention! Improper use may result in
damage to the device. Caution! Opening of the device can lead to damage and possibly injury
to hands. The device is filled with resin at the factory and is not designed to be opened.
Unauthorized work on the device can no longer guarantee its safety and functionality. Loss
of functionality and injuries may result from unauthorized work on the device. Make sure of
the required procedure in advance.
Make sure that the installation environment corresponds to the specified operating range.
Adhere to specified temperature and limit values at all times.
To avoid damaging the device or impairing its functionality, chemical cleaning agents should
not be used. If cleaning is necessary, use a dry or slightly damp cloth.
The device is equipped with a permanently installed lithium battery, which must not be
recharged. This type of battery is classified as dangerous goods (Hazardous goods class 9).
The applicable transport regulations must be observed! Data sheets, safety data sheets and
test reports of the batteries are available on request. Please also note the following general
information on handling batteries. The instrument contains a non-rechargeable lithium
battery. Attempting to recharge it will damage the device and possibly cause injury.
Under no circumstances may the device be disposed of in normal household waste. Please
observe our regulations for disposal mentioned separately in this manual.
General information on handling batteries
Caution! The following must be observed when handling lithium batteries and devices with lithium
batteries.
2
store protected from moisture
do not heat or throw into fire to avoid explosions
do not short-circuit
do not open or damage
do not recharge
do not store within reach of children
Required Materials
Software B.One Device Manager App (only for Android devices)
NFC-enabled Android mobile device (at least Android Version 8)
IUWS/IUW
Page 4
3.
Configuration Possibilities IUWS/IUW
To see and configure the IUWS/IUW parameters, please proceed as follows:
Open the B.One Device Manager App on your mobile device
Head to the main menu and select “CONFIGURATION”
In the new menu, please select “Default” as device. Select “NFC” to configure devices using
a mobile android device.
Make sure that the android device supports NFC and that the function is enabled.
Place your android device near the NFC interface of the meter (see Figure 1)
As soon as the NFC interface is detected, the readout will start automatically.
After successful data retrieval, you will be able to see and configure the various parameters
of the IUWS/IUW (see table below)
Configurable parameters are marked by this
symbol
After tapping this symbol, please select the
desired option from the drop-down
menu and press “OK”
In the configuration menu, press the “WRITE” button to execute the command. Make sure
that your android device is still positioned near the NFC interface.
This symbol indicates, that the command has been executed successfully.
Figure 1: Position of the NFC Interface for IUW (left) and IUWS (right)
Please continue with this process until the IUWS/IUW is fully configured to your requirements. An
overview and explanation of the parameters displayed in the B.One Device Manager app can be
found in the tables below. All configurable parameters are shown in bold and cursive.
Page 5
3.1
Description of the configuration parameters
Parameter
Medium
Description
Time at which the meter is read (year month day and time of
measurement)
The firmware version of connected device
14-character alphanumeric string as a supplier and multi-utility
identification number
Identification of the measured medium
Generation
The generation number of the meter
Device time
The system time of the device
The date until which the battery if the device will last even at high
loads. Normally, the device will last longer
Date on which the cumulative consumption is stored in the device.
The due date value is often used to create the consumption
billing, ZENNER factory setting: 01.01.
Mode of the device. Delivery Mode = Device is not activated,
Operation Mode = Device as activated and transmitting values
Configuration number of radio behavior. Defines which data is
sent and corresponding intervals.
Configuration number of radio behavior. Defines which data is
sent and corresponding intervals.
Unique ID of the end device
Readout time
Version
Serial number
Battery end date
Key date
Device Mode
Scenario LoRa
Scenario wMBus
Dev EUI
Join EUI
DevAddr
Activation Mode
Net ID
ADR
Send Join Request
Backflow
Burst
Unique ID of the application server
Device address = 32 bit. The logical address is used to identify
objects in the network
OTAA (Over The Air Activation)
Device starts a join procedure with the network, which allocates a
dynamic DevAddr and negotiates security keys with the device.
When the device is activated, it switches to ABP (Activation By
Personalization).
24-bit value used for identifying LoRaWAN networks. It is
assigned by the LoRa alliance. It is sued by networks for assigning
network-specific addresses to their end-devices (i.e. DevAddr),
so that uplink frames sent by those devices even when they are
roaming outside their home network c an be forwarded.
ADR (Adaptive Data Rate) is an optimization mechanism for
transmission power, data rate and time on air in the network
Allows you to re-join an already activated device. Beforehand,
“Activation” needs to be set to OTAA.
This is an event that triggers when reverse water flow is detected
This event logger indicates that the meter detects burst a burst for
30 minutes
Page 6
Parameter
Dry
Frost
Leakage
No consumption
Oversized
Reverse Installation
Undersized
Volume
Description
An event logger that triggers when no water is detected for 48
hours
This event logger indicates that the water temperature is less or
equal to 0 degrees Celsius for 3 hours
This event logger indicates that the detects a leakage. A leak is
indicated by a period of constant flow for 24h (flow is never 0)
This event logger indicates that the meter detects no flow for 1
month
This event indicates that the meter is oversized. The meter is
oversized when the flow rate never exceeds 0.1*Q3 (10% of Q3).
This is averaged over a period of 15 minutes. It is counted how
many times the flow rate does not reach 10% of Q3. If the flow rate
is not reached after 30 days, "Oversized Meter" is detected.
If once a flow rate of > 10% from Q3 averaged is reached by a
quarter of an hour, the detection is permanently disabled, and the
status "Oversized Meter" deleted . The event memory stores the
date and time of the event
An event logger that triggers if the return volume is higher as the
forward volume for 4 hours.
This event indicates that the meter is undersized. If the flow rate is
continuously higher as Q3 (permanent flow) over a 4 hour period,
this indicates an undersized meter, and the message "meter
undersized" will be detected.
The value of the meter
Volume forward
Volume return
Flow
The return volume from the meter
Registered flow in m3 / h
Water Temperature
Temperature of the water inside the measuring area
Ambient temperature
Temperature of the meter environment
State
Shows the error states of the device
Page 7
3.2
Example: Changing the communication scenario
This chapter demonstrates the parameter configuration process using the example of changing the
communication scenario. While the configuration options differ, the process remains the same for all
parameters.
Figure 2: Example configuration Process
Follow the steps at the beginning of Chapter 3 to set up your NFC connection and read your
device.
To change the communication scenario, please tap the icon to the left of the parameter
name.
In the appearing pop-up window, choose the desired scenario and confirm your selection
with “OK”. Since the IUWS supports parallel radio communication, LoRa and wMBus
scenarios can be configured without restraints.
Back in the device overview, you will see a preview of the changes you have entered.
If the changes you made are correct, tap the “WRITE” button at the bottom of the screen.
Make sure that the NFC connection is still possible.
This symbol indicates the successful configuration of the parameter.
Page 8
4
NDC B.One Communication Module
The NDC B.One communication module (Near Field Data Capture Module) with wireless MBus or
LoRaWAN® interface can be used for remote reading of the ZENNER IUW ultrasonic meter series.
Figure 3: NDC B.One Communication Module
The NDC B.One is an optional addition for IUWS and IUW meters:
For the IUWS, the external NDC can be used to improve signal availability in difficult installation
positions such as pit shaft installations
For the IUW, the external NDC can be used to enable remote reading and smart functions.
To configure the NDC B.One Communication Module, either the radio transceiver MinoConnect
Bluetooth Radio Set Opto (including ZVEI – IrDA Combihead) or the K01-Blue 3000 is required.
Figure 4: MinoConnect Radio Bluetooth Set Opto (left) and Optohead K01 - Blue 3000 (right)
Page 9
4.1
Description of the configuration parameters NDC
Parameter
Description
NDC Parameters
Readout time
Medium
Time at which the meter is read.
14-alphanumeric string as a supplier and multi-utility identification
number of the NDC
Identification of the measured medium (RF-adapter for NDC)
Generation
Generation number of the device
Version
The firmware version of the NDC
Serial number
Device time
Device mode
Battery end date
Version
The system time of the NDC
Mode of the device. Delivery Mode = Device is not activated,
Operation Mode = Device as activated and transmitting values
The date until which the battery of the NDC if the device will last
even at high loads. Normally, the device will last longer
IUW Parameters
Medium
The firmware version of the connected IUW
14-alphanumeric string as a supplier and multi-utility identification
number of the IUW
Identification of the measured medium inside the IUW
Generation
Generation number of the IUW
Serial number
State
Battery end date
Key date
Communication scenario
Volume
The error states of the IUW
The date until which the battery of the IUW if the device will last
even at high loads. Normally, the device will last longer
Date on which the cumulative consumption is stored in the device.
The due date value is often used to create the consumption
billing, ZENNER factory setting: 01.01.
The configuration number of the radio behavior. Defines the
transmission intervals and data contents
The value of the meter
Volume forward
Volume return
Flow
Water Temperature
Device Time
The return volume from the meter
Registered flow in m3 / h
Temperature of the water inside the measuring area
System time of the IUW
Connection Parameters
NFC transmission
State of the NFC transmission
Connection to IUW
Connection status to the IUW via NFC
Initialization state
Initialization state when establishing a connection to the IUW
Connect with IUW
(Re-) establishes the connection to the IUW
Module Code
Internal identifier for the status of the NDC
Page 10
4.2
Example: Upgrading the IUW with NDC B.One
This example explains the process of enabling radio functions for the IUW using the NDC B.One
Communication Module and the B.One Device Manager app.
Remove the protection cap of the NFC interface by loosening the screw
Slide the NFC coupler of the NDC into the intended position under the IUW display
Open the B.One Device Manager app on your device.
Check your connected devices by tapping the slide menu in the upper left corner and
selecting "Pairing". Your connected MinoConnect device should be displayed here.
Return to the main menu and select “CONFIGURATION”
In the new menu, select "Default" as the device. Select "IR" to configure devices with the
optical head.
Place the optical head in the designated spot on the NDC and ensure it is positioned
correctly.
Press the "READ" button at the bottom of the configuration menu.
To activate the NDC module select please the function: „Set operation mode“.
After successful data retrieval, you can view and configure the various parameters of the
NDC (see table
above)
Page 11
Figure 5: Connection procedure IUW & NDC B.One
To connect the NDC B.One to the IUW, please select the option “Connect with IUW” and
press “RUN”
After a short delay, the successful connection will be indicated by this symbol
Afterwards, you can configure other parameters, e.g. communication scenario, the same
way as described in chapter 3.2
Page 12
5
Contact
ZENNER International GmbH & Co. KG
Address: Heinrich-Barth-Straße 29, 66115 Saarbrücken (Germany)
Email: info@zenner.com
Telephone: +49 681 99 676-30
Web: www.zenner.de/ www.zenner.com
Page 13
LoRaWAN® CommunicationScenarios for ZENNER IUW & IUWS meter series
CommunicationScenario no.
RadioFrequencyBand (MHz)
Sending interval
201
EU-868
monthly
202
EU-868
daily
203
EU-868
3 hours
204
EU-868
hourly
RadioActiveTime
always
always
always
always
x
x
x
x
x
> 15
10
x
x
> 15
4 + reserve
Telegram data
daily value (24:00)
key date
key value
recent month
hourly values
status change (alarms)
calculated battery lifetime IUWS D Cell [years]
calculated battery lifetime NDC LoRa [years]
x
x
x
> 15
10 + reserve
x
x
> 15
10 + reserve
Please note:
For IUWS ultrasonic water meters with firmware 1.8.5 variants for the parallel use of both radio technologies
(wireless M-Bus and LoRaWAN®) are available.
Date: October 2024
wM-Bus CommunicationScenarios for ZENNER IUW & IUWS meter series
CommunicationScenario
OMS certified
SendingInterval
RadioActiveTime
Commissioning scenario
(transmitting installation request packets, interval 30s, over
one hour)
312
313
314
315
317
318
320
321
322
300 s
22:00 - 2:00
319
x
432 s
always
120 s
always
20 s
always
20 s
always
hourly
always
15 minutes
always
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
16s
always
324
x
20s
always
329
x
20 s
always
20s
always
20 s
always
x
x
x
x
x
x
x
342
20 s
always
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Telegram data
current date
current date and time
current value
daily value (00:00)
key value
recent month date
recent month
month -2 to -12
current water- & ambient temp.
two byte status
x
x
x
x
x
x
x
x
x
x
3600 s
C1
5
3600 s
C1
5
x
x
Scenario suitable for meter type IUWS
optional
optional
optional
optional
optional,
optional,
for connection to
SMGW**
for connection to
SMGW**
for connection to
SMGW**
optional
optional
optional
optional
optional
Standard ex
works for IUWS
D Cell
version***
Calculated battery lifetime IUW (years)
> 15
> 15
---
---
---
---
---
---
---
---
---
---
---
Calculated battery lifetime NDC (years)
12+reserve
10
---
---
---
12+reserve
5
---
---
---
---
---
---
Calculated battery lifetime IUWS D-Cell version
(years)
15+reserve
15+reserve
15+reserve
15+reserve
15+reserve
15+reserve
15+reserve
15+reserve
15+reserve
15+reserve
15+reserve
15+reserve
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
--C1
7
--C1
5
--C1
5
--C1
7
--C1
7
--C1
5
--C1
5
--C1
5
--C1
7
--C1
5
--C1
5
optional
optional
x
x
x
x
x
x
x
x
x
x
Times and frame, meter type and lifetime
NFC cycle time*
Mode of operation
SecurityMode; Encryption mode
Scenario suitable for meter type IUW+NDC
*
not
not
not
recommended recommended recommended
optional,
not
not
not
not
not
not
recommended recommended recommended recommended recommended recommended
15+reserve
(202+342);
12+reserve
(203/204+342)
NDC module is hourly requesting status data from the meter
** SMGW = Smart meter gateway, used in German market
*** valid from Q4-2024
Please note: For IUWS ultrasonic water meters with firmware 1.8.5 variants for the parallel use of both radio technologies (wireless M-Bus and LoRaWAN®) are available.
Date: October 2024