HW Group NB Series User manual

Manual for NB-xxx devices
NB-IoT devices communicate via the Narrow Band network only.
Devices are delivered with a prepaid sim card.

HW group
2Safety Notices
Safety Notices
The device complies with regulations and standards in force in the Czech Republic and the
European Union. The device has been tested and is supplied in working order. To keep the device
in this condition, it is necessary to adhere to the following safety and maintenance instructions.
Using the device in a manner other than prescribed by the manufacturer may cause its
safeguards to fail!
The power supply outlet or disconnection point must be freely accessible.
The device must not be used in particular under any of the following conditions:
• The device is noticeably damaged
• The device does not function properly
• Unfastened parts can be heard moving inside the device
• The device has been exposed to moisture or rain
• The device has been serviced by unauthorized personnel
• The power adapter or power supply cable are noticeably damaged
• If the device is used in a manner other than designed for, the protection provided by the
device may fail.
• The local electrical system must include a power switch or a circuit breaker and overcurrent
protection.
The manufacturer warrants the device only if it is powered by the supplied power adapter or an approved
power supply.
If you have any problems with installing or operating the device, please contact the technical
support:
HW group s.r. o.
http://www.hw-group.com
email: [e-mail]
Formanská 296
Prague, 149 00
Phone: [phone]
Before contacting technical support, please have at hand the exact type of your device (at the type plate)
and, if known, the firmware version (see later in this manual).

NB - Devices 3
Table of Contents
Table of Contents
NB-xxx devices product family 4
NB-2x1Wire 4
NB-WLD 4
NB-2xIn 4
NB-2xOut 4
Shared features of the NB-IoT product family 5
Measurements and data upload 5
Description of HW elements 8
Setting up the device 8
Migration of connected device 13
Portals where devices can be connected 15
SensDesk.com portal features 16
NB-Devices models and their specific features 19
NB-2x1Wire 19
NB-2xIn 20
NB-2xOut 21
NB-WLD 22
Technical specifications for all models 23
Mechanical dimensions 24

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4
NB-xxx devices product family
NB-xxx devices product family
NB-xxx Devices is a family of environmental monitoring products using the Narrowband (NB-IoT)
mobile network. All products feature a robust design, battery-powered operation, and seamless
integration with any portal based on the SensDesk technology. The HWg-cloud.com portal is for
free, others can be paid services.
All devices include a 3V alkaline CR123A battery that allows continuous operation for up to
3years (depending on the device type, application and connected sensors).
NB-2x1Wire
A device for connecting thermometers, hygro-
meters, or other sensors via the RJ11 1-Wire
(UNI) bus. Allows connecting several sensors
to measure up to 4 quantities simultaneously.
NB-WLD
Water Leak Detection unit with 1 zone input
(external WLD Type A moisture-sensing cable).
One zone is max. 185m (85 m / WLD sensing
+100m / prolong cable).
NB-2xIn
A device for connecting external detectors via
DI input (door or window contact, PIR motion
detector or a smoke/gas detector with a relay
output). Allows connecting 2 independent
detectors. Each DI input can feature pulse
counters for connecting energy meters with
S0 output; however, external power is needed
for reliable deployment.
NB-2xOut
A module with 2 DO (relay outputs) controlled
from the portal (www.HWg-cloud.com or others)
over the NB-IoT network.

NB - Devices 5
NB-xxx devices product family
For specifics of individual devices, including any differences in the measurement period, battery
life and so on, see the respective device page.
Measurements and data upload
Measurement and data upload period
The period for logging the measured values and uploading them to the portal is fully configured
automatically via the portal, separately for operation with an external power source and battery-
powered operation. SensDesk.com portal default values:
External power
• Logging period (measuring, storing values in the internal memory): 5 minutes
• Data upload period (connecting to the portal and uploading all logged values): 1 hour
• Check period (NB-2xOUT brief query for output state changes): 10 minutes
Shared features of the NB-IoT product family
• Robust metal design, 67× 78 × 33mm (without antenna)
• External antenna, SMA connector
• 4FF (nano SIM) holder
• LED indicator
• Plug&Play – connect power or remove the insulating strip and the device is immediately available
in the portal
• Device&communication settings (communication period, safe ranges) are configured in the portal
• Battery state appears in the portal as another sensor
• Powered from a 5V adapter or the built-in replaceable CR123A battery
• Default "subscribed" version of the device is delivered with 3-years prepaid simcard for Vodafone
NB-IoT network.
Subscribed = 3 years subscription
NB-IoT SIM (Vodefone) included

HW group
6NB-xxx devices product family
Battery power
• Logging period (measuring, storing values in the
internal memory): 15 minutes
• Data upload period (connecting to the portal and
uploading all logged values): 10 hours
• Check period (NB-2xOUT brief query for output state
changes): 1 hour
Only the Portal administrator may provide you with
other than automatic logging / Data update period
settings (setup per each device). Keep in mind device
lifetime when powered by battery.
Data upload period cannot be shorter than 60 minutes
and the Logging period shorter than 5 minutes.
Periodic and non-periodic reading of sensors
Sensor values are regularly read in the fixed Log Period, which is configured via the portal.
However, in addition to the periodic reading, the values can also be read if the following happens:
1) The device is powered up by connecting to the battery or an external power supply
2) The button is pressed
3) If the SafeRange is exceeded at the moment of periodic reading, the measurement is repeated
after the Delay interval
Periodic and non-periodic data upload
Sensor values are uploaded to the server periodically in the fixed period, which is configured
via the portal. However, in addition to the periodic upload, data can be also uploaded if the
following happens:
1) SIM card is inserted
2) Device power is connected or changed
3) The button is pressed
4) SafeRange is exceeded (if the Delay is set, then only after the Delay elapses)
SafeRange – range of allowed values
SafeRange is configured in the portal independently for each sensor. Whenever the measured
value is passing by this range, a message to the portal is sent (even out of the Data Upload
period - default 10h).
To extend life time of the device powered from the battery, sensors are read only in the Logging
period (default 15 min). With the exception of SD-2xIN, sensors are NOT read at any other
period. If a Delay is set together with the SafeRange, the repeated measurement is performed
at the next Logging period, and an Alarm is raised only if the repeated measurement is also
out of the SafeRange.

NB - Devices 7
NB-xxx devices product family
Hysteresis
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Temperature range: -15..+25 °C
Hysteresis: 5 °C
Alarm ON
Alarm OFF
25
T[°C]
t[s]
20
15
10
5
0
0
-5
-10
-15
-20
-25
Alarm
state
Hysteresis=5 °C
None Hysteresis
Hysteresis/Idle range (sensor value)
The Hysteresis setting defines a tolerance range for suppressing alarm alerts. The function prevents
multiple alarm alerts (too many emails or SMS from the portal) if the reading oscillates around the specified
threshold. The hysteresis is configured independently for each sensor.
•Hysteresis= 5°C – The portal sends 3 Email (SMS) messages. Alarm active in points 0..4, 8..10, 12 and beyond.
•No hysteresis (0°C) – The portal sends 8 Email (SMS) messages. Alarm active in points 0..1, 2..3, 8..9,
12..13, 14 and beyond.
In determining when the Alarm ends, the Hysteresis value applies. The end of an Alarm is only
notified when the measured value is well within the SafeRange. However, the value is only read
according to the Log Period.
Alarm status notification based on a Delay value:
• Blue: Delay = 0
• Yellow: Delay is non-zero
To increase battery life, be careful when setting the SafeRange and Hysteresis values.
Hysteresis
Alarm state
Alarm START notificationAlarm END notificationAlarm START notification
Alarm END notificationAlarm END notificationAlarm START notification
TimeDelay [s]
The figure demonstrates two cases. Without the hysteresis idle range of 5°C, the alarm raised in point 8
would end in point 9; however, the hysteresis function keeps the alarm active until the temperature reaches
the upper limit of the tolerance band (point 10): 5°C + (–15 °C) = –10 °C.

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LED indicator (Status)
The blue LED gives a quick status indication
for debugging and troubleshooting. It can
indicate these states:
• Short flash – reading of sensors and inputs
• Rapid flashing – registration to the NB-IoT
network
• Continuously on – communication over the NB-IoT network, data transfer
When power is connected to the device, the indicator briefly lights up to indicate modem
initialization and 1-Wire sensor detection. Then, it quickly flashes as the device connects to
the network, and lights up whenever the device communicates with the portal. It also briefly
flashes when the 1-Wire sensors or the WLD cable state are being read.
Setup button
The button is used to send values to the portal immediately and to detect sensors.
• Press – sensors are detected and data are sent to the portal
• Press for longer than 10 s – reset to factory defaults
Description of HW elements
Power
5V
NB-SIM
Status
Setup
Setting up the device
1) Attach the external antenna
2) Connect 1-Wire sensors (NB-2x1Wire only)
3) Insert SIM card
4) With a slight force, pull out the insulating strip that insulates the battery from the contacts
5) Connect the external power supply and wait until the device connects to the operator’s
network (i.e. until the blue LED turns off). Depending on the network and device configuration,
this can take up to 20 minutes (when the device is first connected to an operator’s network,
including in a new country or region). During this time, do not disconnect external power to
avoid battery drain.
6) Default portal where devices are connected www.HWg-cloud.com.
There are 2 options for how to install a new device:
a) You have an existing account on the HWg-cloud and you would like to adopt a new device
to this one account. (See page 9)
b) You have an existing account on another SensDesk technology based portal
(www.SensDesk.com or www.HWportal.cz for example) and you would like to migrate a new
device to this one account. (See page 10)
7) Define sensor name & SD SafeRange for each sensor. (See page 12)
Description of HW elements /Setting up the device

NB - Devices 9
6a) Adopt a new device to HWg-cloud.com
Open the www.HWg-cloud.com website, log in to your account and go to the My Team page.
Scroll down to the Device Adoption.
Fill in the device hash (1234-5678 number on the label of the physical device).
The device will appear after some time in the devices:
Setting up the device

HW group
10 Setting up the device
6b) Migrate new device from HWg-cloud.com to another portal
Open the www.HWg-cloud.com website, do not log in, click to Set Device button on the top of the
page.
Fill in the device hash (1234-5678 number is on the label of physical device).

NB - Devices 11
Setting up the device
After you click the Save button on the web
page, take a pencil tip or other tool and briefly
press the Setup button on the device. It will
start blinking (communication with the portal)
and finalize the device migration process. Setup button
For Team login & Team password put data from the SensDesk technology based portal, where
you have the account. You will find them on the Team page.

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12 Setting up the device
The device will appear in the Device list:
7) Define sensor name & SD SafeRange for each sensor
Part of the device installation is to define sensor name & SD SafeRange for each sensor. Define
SD SafeRange to significantly speed-up alerts when sensor value exceeds the SafeRange limit.

NB - Devices 13
Migration of connected device
A connected and working device can also be easily migrated from one portal to another.
For example in this case from the paid portal www.SensDesk.com to the free www.HWg-cloud.com.
Migration of connected device
Fill in the Team login and Team password, choose the right SensDesk technology based portal.

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14 Migration of connected device
After you click the Save button on the web page, take a pencil or other tool and briefly press
the Setup button on the device. It will start blinking (communication with the portal) and finalize
the device migration process.
The device will appear on the target portal.
Only sensor names will be transferred between the portal. You will lose the device configuration
and data history!

NB - Devices 15
Portals where devices can be connected
NB Devices have to be connected to online Portal based on SensDesk technology.
1) www.HWg-cloud.com is free portal provided by the manufacturer with limited functions.
2) www.SensDesk.com is paid portal provided by the manufacturer.
3) Portal providers are independent companies running their own compatible portals. A list of
them can be found on the main page of www.HWg-cloud.com.
HWg-cloud.com
• Free service
• Up to 20 devices
• Device management
Portal providers
SensDesk.com
• Paid service
• Subscription plans
• SMS, Voice calls, graphs
Portals where devices can be connected
. . .
Check list on
HWg-cloud.com

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16 SensDesk.com portal features
Graphs of values
SensDesk.com portal features
SMS & Voice call alerts
Enable Voice call
in SMS settings

NB - Devices 17
SensDesk.com portal features
Multigraph of several values

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18 SensDesk.com portal features
Open API (SNMP & XML)
Other features & PDF reports

NB - Devices 19
NB-Devices models and their specific features
External sensors
Port / connector Port1, Port2 / RJ11 (1-Wire, 1-Wire UNI)
What can be connected 2 ports for external sensors. Up to 4 sensor values in total.
Sensor types Only sensors by HW group s.r. o.
Sensors / distance 4 values, max. 2 probes per port (max. 60m total length per port)
Alarm LED Alarm Port1 – Alarm SENS – lights up if the sensor is in alarm – on external power only
A device for connecting external sensors of Temperature, Relative Humidity, Voltage or other
values via the RJ11 1-Wire (UNI) bus. It allows connecting several sensors to measure up to
4quantities simultaneously.
The sensors are detected whenever power is connected to the device or the Setup button is
pressed.
The device can be powered from an external 5V adapter, from its internal battery, or using
acombination of these. With a single connected Temp-1Wire IP67 temperature sensor and the
default sensor reading and data upload periods, the battery lasts up to 3 years. When using
1-Wire UNI sensors, either the sensors or the NB-2x1Wire device should be powered from an
external adapter because such sensors significantly reduce the battery life.
Power
5V
NB-SIM
Status
1-Wire
Antenna
Port1 Port2
NB-Devices models and their specific features
NB-2x1Wire
Setup

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20 NB-Devices models and their specific features
Remote monitoring device for connecting external detectors to 2x DI (Digital Input). To each
DI input you can connect a door or window contact, a PIR motion detector or a smoke/gas
detector with a dry contact (relay) output.
Pulse counter (S0) on each DI input
An advanced feature of each DI input is a 4bytes pulse counter for counting pulses. To each DI
input you can connect an energy or water meter with pulses (S0) output. Only pulses longer
than 20 ms are detected. Due to the high energy requirements of S0 outputs, external power
is required for reliable pulse counting. When the device is powered from an internal battery,
reliable operation cannot be guaranteed.
Alarm state
The input mode (Alarms or Counters) can be changed in the Digital Input configuration at the
portal using the “Alarm level” parameter.
If the “Not Defined” option is selected (default portal configuration), DI input is in pulse counting
mode and 0/1 state is communicated only in the regular data upload period.
When Alarm level=1 or Alarm level=0, DI input is in the Alarm mode. The input 0/1 state is
communicated in the regular data upload period as well as whenever there is a state change.
To comply with the transmission limit, the device will send no more than 3 alarms per 10 minutes.
Frequent state changes can have a significant impact on battery life.
For battery operation, wiring cables should be as short as possible to avoid false pulses.
LED indication
The default mode is the counter mode (i.e. Alarm level = Not defined). When DI input is activated
(=1/ contact closed) and the device is powered from an external adapter, the respective green
LED lights up. The LEDs are inactive on battery power.
Power
5V
NB-SIM
Status
GND
IN1
GND
IN2
Antenna
Inputs
NB-2xIn
Setup