Vega NB-14 User manual

www.vega-absolute.ru
NB-IOT MODEM WITH RESISTANCE
CONTROL
VEGA NB-14
User manual

Vega NB-14 / User Manual
2 Revision 03 – 14 July 2020
Document Information
Title
NB-IoT modem with resistance control Vega
NB-14
Document type Manual – Translation from Russian
Document number V02-NB14-01
Revision and date 03 - 14 July 2020
This document applies to the following products:
Product name
Type number
Vega NB Vega NB-14
Revision History
Revision Date Name Comments
01 30.10.2019 KEV The first release
02 13.12.2019 KEV New settings added to Configurator, communication
protocol is changed
03 14.07.2020 KEV Minor changes

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CONTENTS
INTRODUCTION.........................................................................................................................................................................4
1 DESCRIPTION AND OPERATION ......................................................................................................................................... 5
Device description .................................................................................................................................................................5
Comunication and data collection algorithm ..................................................................................................................5
Functional ................................................................................................................................................................................ 6
Marking ..................................................................................................................................................................................... 6
2 SPECIFICATION .......................................................................................................................................................................7
3 OPERATION..............................................................................................................................................................................8
Contacts ...................................................................................................................................................................................8
Hall sensor .............................................................................................................................................................................10
Buttons ...................................................................................................................................................................................11
Indication ............................................................................................................................................................................... 12
Initial Startup .........................................................................................................................................................................13
Connecting via USB .............................................................................................................................................................13
4 VEGA NB-IoT CONFIGURATOR ......................................................................................................................................... 15
Interface of the application ................................................................................................................................................15
Connection to the device ...................................................................................................................................................16
“System” tab .......................................................................................................................................................................... 17
“Settings” tab .........................................................................................................................................................................18
“Vega NB-14” tab ..................................................................................................................................................................20
5 COMMUNICATION PROTOCOL ........................................................................................................................................ 22
6 STORAGE AND TRANSPORTATION REQUIREMENTS ................................................................................................... 24
7 CONTENT OF THE PACKAGE .............................................................................................................................................25
8 WARRANTY.............................................................................................................................................................................26

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INTRODUCTION
This manual is designated for Vega NB-14 modem resistance control (hereinafter – the
modem) manufactured by Vega-Absolute OOO and provides information on powering and
activation procedure, control commands and functions of the modem.
This manual is targeted at specialists familiar with installation work fundamentals of
electronic and electrical equipment.
The modem shall be installed and adjusted by qualified specialists in order to
ensure proper operation of the device
Vega-Absolute OOO reserves the right to make changes to the manual related to the
improvement of equipment and software, as well as to eliminate typos and inaccuracies,
without prior notice.

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1 DESCRIPTION AND OPERATION
DEVICE DESCRIPTION
Vega NB-14 modem is designed for monitor of insulation state of the warm network
pipelines and for control of integrity of pipelines signal wires, further accumulating and
transmitting of this information in NB-IoT network.
Modem allows to detect the following defects:
-wet insulation;
-the breakage of the signal wires;
-closing of the signal wire to the pipe (detected like ‘wet insulation’ defect).
Modem does not detect a reason and a place of defect appearing
In addition, Vega NB-14 can be used as a security device – two additional inputs
operate in security mode, there is also Hall sensor.
The modem can be used on pipelines with polyurethane foam heat insulation and/or
collect data from 1-Wire interface connected temperature sensors etc.
The modem is may powered by one or two batteries with capacity 6400 mAh.
COMUNICATION AND DATA COLLECTION ALGORITHM
The readings collecting from the meter with a configurable period 5, 15, 30 minutes, 1,
6, 12 or 24 hours. The readings stored in the device memory and transmitting during the next
communication session with the NB-IoT network.
The adjustable data transfer period can be equal to 5, 15, 30 minutes, 1, 6, 12 and 24
hours. Data transferring in random point in time during set period. At the next communication
session, the device starts sending accumulated packets with readings, from the earliest to the
latest.
The device operates with confirmation all the time and send the next packet only after
receiving a confirmation of the delivery of the previous one. If such confirmation was not
received, NB-14 completes the communication session until the next one according to the
schedule. Herewith, the device continues to collect data according to the data collection
period and store it in memory. Non-transmitted packets remain in the device memory until
the next communication session.
The internal clock is set automatically when device connected to the "Vega NB-IoT
Configurator" via USB.

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FUNCTIONAL
Vega NB-14 modem has the following features:
oResistance measurement from 0 to 1 MOhm on the two inputs (insulation wetting control)
oResistance value control on the two inputs - there more or less than 200 Ohm (signal wire
breakage control)
oTwo inputs operating in the «security» mode for connecting the external leakage and
safety sensors, etc.
oInterface 1-Wire for connecting temperature sensors (up to 10 pc)
oQueue of sending when delivery is not possible
oTime referencing of readings by internal clock (UTC)
oExtra communication when resistance is out of specified thresholds (signal wire breakage,
wet insulation)
oCommunication in case of security inputs or Hall sensor actuation
oMeasurement of temperature inside housing
oCharge measuring of the battery (%)
MARKING
Device marked with sticker that contain the next information:
oDevice model;
oIMEI;
oMonth and year of manufacture;
oQR-code containing IMEI for automatized count.
Sticker located in three places – on device case, in factory certificate and on the packing
box.

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2 SPECIFICATION
Main
Monitoring of signal wire integrity and wet
insulation
2 channels
Interfaces 1-Wire
Security inputs 2
USB-port micro-USB, type B
Operating temperatures -40…+85 °С
Built-in temperature sensor yes
Hall sensor yes
Quantity of black box records up to 100 000
Cellular communications
Supported Cellular Standards LTE Cat NB1
Data transfer protocol MQTT
Battery Life 2 years if the data transferring once a day
LTE NB-IoT antenna type external
Power
Built-in battery 6400 mAh (one or two, depending on
delivery conditions)
Case
Housing dimensions 95 х 95 х 50 mm
Ingress protection rating IP67

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3 OPERATION
CONTACTS
Description of contacts assignment is in table below.
Contact
PCB designation
Description
1 GND Ground
2 ALARM1 Security input 1
3
GND
Ground
4
ALARM2
Security input 2
5 GND Ground
6 ONE_WIRE 1-Wire
7 RA_INPUT2 Input 2 of channel A
8 RA_INPUT1 Input 1 of channel A
9 RB_INPUT2 Input 2 of channel B
10
RB_INPUT1
Input 1 of channel B
11
GND
Ground
12 GND Ground
There are two security inputs on the boars which allows to connect circuits with the
following types of NO contacts:
- reed switch;
- mechanical pushbutton;

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- open-collector output.
The device monitors status changes on the security inputs and when the security input
triggers, the device is activated and sends an alarm message to the network. The trigger
mechanism is configured through the program "Vega NB-IoT Configurator".
For resistance monitoring the modem has two equivalent channels: A and B. Every
channel designed for measurement of two types of the resistance – pipeline insulation
resistance Rins and signal wire resistance Rw. Consider the principle of device operation on the
example of channel A.
Device measures resistance according with scheme pictured above and determines
presence of defects of the pipeline insulation or the signal wire after that. Table of control
values:
Object state Values of control
parameters
Text in the
program (see
part 4)
Color in the
program (see
part 4)
Signal wire is integrity
R
w
≤ 200 Ohm
OK
green
Breakage of the signal wire Rw> 200 Ohm breakage red
Pipeline insulation is OK Rins > 1 MOhm normal 1 green
500 kOhm < Rins ≤ 1 MOhm normal 2 green
100 kOhm < Rins ≤ 500 kOhm normal 3 green
50 kOhm < Rins ≤ 100 kOhm normal 4 green
5 kOhm < R
ins
≤ 50 kOhm
normal 5
green
Wet insulation (or signal
wire closed to metal pipe)
R
ins
≤ 5 kOhm
wet
yellow
When device finds out a defect from ‘red’ or ‘yellow’ zone, it forms an alarm packet and
if setting ‘Send data immediately’ is active then sends it in the NB-IoT network. If the setting

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does not active the alarm packet is saved in black box until the communication session
according the schedule (see details in part 4).
HALL SENSOR
The device has Hall sensor which located on the board edge on the bottom side. When
the magnet is brought up the sensor triggered, and the device can form the alarm message
which immediately transmitted to the server.