Vega Absolute SHVE User manual
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CONTENTS
_Toc66717057
Introduction.......................................................................................................................................................................................4
1.1 Purpose ...................................................................................................................................................................................5
1.2 Functions.................................................................................................................................................................................5
1.3 Specification............................................................................................................................................................................6
1.4 Operation principle.................................................................................................................................................................7
2 DESCRIPTION OF BASIC FUNCTIONS...............................................................................................................................................9
2.1 Readings displaying ................................................................................................................................................................9
2.2 meter’s operation modes .......................................................................................................................................................9
2.3 Optical port ...........................................................................................................................................................................10
2.4 Internal clock.........................................................................................................................................................................10
2.5 Electronic magnetic seal .......................................................................................................................................................10
2.6 LoRaWAN ..............................................................................................................................................................................10
2.6.1 Connection to the network ...............................................................................................................................................10
2.6.2 Class А device.....................................................................................................................................................................11
2.6.3 Communication and collection periods ............................................................................................................................11
2.6.3.1 Communication period...................................................................................................................................................11
2.6.3.2 Data collection period ....................................................................................................................................................11
3 “VEGA LORAWAN CONFIGURATOR” APPLICATION.......................................................................................................................12
3.1 Operating modes ..................................................................................................................................................................12
3.2 Application interface ............................................................................................................................................................12
3.3 Connection of meter to computer........................................................................................................................................13
3.3.1 Adapter connection, driver installing................................................................................................................................13
3.3.2 Optical port activation.......................................................................................................................................................15
3.4 “Device info” tab...................................................................................................................................................................17
3.4.1 Basic description................................................................................................................................................................17
3.4.2 Fields description...............................................................................................................................................................18
3.5 “LoRaWAN settings” tab.......................................................................................................................................................20
3.5.1 Basic description................................................................................................................................................................20
3.5.2 Fields description...............................................................................................................................................................20
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3.6 “Vega SHVE/SGVE v.2” tab ...................................................................................................................................................24
3.6.1 Basic description................................................................................................................................................................24
3.6.2 Fields description...............................................................................................................................................................24
3.7 Device settings by default ....................................................................................................................................................25
4 LORAWAN COMMUNICATION PROTOCOL....................................................................................................................................26
4.1 Transmitting messages .........................................................................................................................................................26
4.1.1 MODEM transmits packets with the following types.......................................................................................................26
4.1.2 Time correction request ....................................................................................................................................................26
4.1.3 Packet with current settings..............................................................................................................................................26
4.2 MODEM Recieves packets with the following types ...........................................................................................................27
4.2.1 Packet with settings request .............................................................................................................................................27
4.2.2 Packet with settings...........................................................................................................................................................27
4.2.3 Unlock LED indicator command ........................................................................................................................................28
4.2.4. Time correction.................................................................................................................................................................28
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INTRODUCTION
This manual is developed for electronic water meters SHVE, SGVE (hereafter – meter, device) and
contains a description about specification, functionality, interfaces, configurator application and
communication protocol and some other data which is necessary to meters exploitation.
This manual is targeted at specialists familiar with installation work fundamentals of electronic and
electrical equipment.
ATTENTION! The meter shall be installed and adjusted by qualified specialists to ensure proper operation
of the device.
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1 TECHNICAL DESCRIPTION
1.1 PURPOSE
SHVE, SGVE meters (fig. 1) are designed to measurement of drinking flowing through the pipeline
water volume according to СанПиН 2.1.4.1074-2001 with the temperature from 0,1 to 30 °С for cold water
meters (SHVE) and from 0,1 to 90 °С for hot water meters (SGVE with a pressure of water in pipeline no
more than 1.0 MPa (10kg/sm) and further collection and transmitting of this data to LoRaWAN network via
radio frequency band 860-1000 MHz.
SGVE meters are multipurpose and may be used as for measurement of cold as hot water volume,
but SHVE meters are only for cold water.
Figure 1 — Appearance of meter
1.2 FUNCTIONS
Meters support the next functions:
•displaying the counted water consumption in cubic meters via the LED indicator;
•fixation of external magnetic field influence (electronic magnetic seal);
•control of internal battery charge;
•control of temperature inside device case (reference Information);
•registration of random reverse flow of water (displaying the counted water modulo consumption in
forward and the reverse direction via the LED indicator);
•leak fixation (continuous consumption < 0.3 cubic meter per 30 minutes);
•fixation of a breakthrough (continuous consumption > 0.3 cubic meter per 30 minutes);
•binding an emergency situation to the date and time and its saving;
•testing in the manufacture and changing the parameters of the meter during operation through the
optical port;
•pre-configured schedule for transmitting the collected data in the LoRaWAN network via radio
communication (choice the communication period);
•pre-configured schedule for the data collection and saving in the internal memory (choice the data
collection period);
•emergency transmitting of the collected data (extraordinary session);
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•emergency transmitting of the alarm message in case of one of the next emergency situations:
◦fixation of external magnetic field influence;
◦low internal battery charge;
◦leak fixation (continuous consumption < 0.3 cubic meter per hour);
◦fixation of a breakthrough (continuous consumption > 0.3 cubic meter per hour).
•there are two operation modes (“Storage” and “Operation”);
•control of the battery passivation level and automatic depassivation when it is necessary.
1.3 SPECIFICATION
The main specification is shown in the table 1.
Table 1
Parameter Value
Basic
Meter type
SHVE-15
SGVE-15
Nominal diameter, mm
DN15 (15 mm)
Ambient temperature, оС
+5…+55
Relative humidity of ambient air, %
от 0 до 100
Ambient pressure range, kPa
от 86 до 106
Temperature class
Т30
Т90
Maximum admissible pressure
MAP10
Pressure loss
∆p 63
Flow profile sensitivity classes
U0/D0
Ratio Q3/Q1(HR/VR)
100/50
Flow rate HR/VR, m 3/h
Maximum Q4
2,0/2,0
Permanent Q3
1,6/1,6
Transitional Q2
0,025/0,051
Minimum Q1
0,016/0,032
Capacity of indicator, m3
99999,9999
Resolution of the reading, m3
0,0001
Reverse water flow
The meter does not allow measurements in the reverse
flow. It is recommended to install a non-return valve.
Average service life of the meter, years
12
Interface
Optical port, LoRaWAN radio channel
Weight of one pulse on the optical port, m3
0,000025
0,000050
Pulse duration at the optical port, μs
100
Radio
Protocol
LoRaWAN
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Parameter Value
Specification
1.0.3
Nominal transmitter power, mW
25 (configurable)
LoRaWAN device class
A
Number of LoRa channels
16
Frequency plan
RU868, EU868, IN865, AS923, AU915, KR920, US915,
KZ865, custom (EU868 based)
Activation type
ABP and OTAA
Communication
period, h
Configurable, h
1, 6, 12, 24
Service
By the event
(Hall sensor closing)
Recommended, h
12
Data collection period, h
1, 6, 12, 24
Black box, messages
200
LoRa antenna type
Internal
Sensitivity, dBm
-138
Radio coverage in restrained urban conditions, km
Up to 5
Radio coverage within line of sight, km
Up to 15
Power
Power source
Internal, Lithium Battery 3.6 V
Battery size
А (ER17505 or LS17500)
Operating time from the battery power, years
Up to 6
(with communication and data collection periods are
equal to 12 hours)
Replacement period
The factory-installed battery must be replaced after an
initial calibration interval of 6 years
Case
Length, mm
110
130
Height, mm
70
75
Connecting dimensions, inch
G3/4-A
G1-A
Ingress protection rating
IP54 (ГОСТ 14254-2015)
Weight without kit assembly parts, kg, max
0,5
1.4 OPERATION PRINCIPLE
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Operation principle based on measurement of the impeller turnovers number. Impeller located in a
flow part of meter and rotated by water flowing. The impeller turnovers number is proportionally to water
flowing volume. A bipolar magnet is molded into the impeller. Counting Hall sensor takes information about
the impeller turnovers number from bipolar magnet.
Meter always on, but there is in a low power consumption mode most of the time.
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2 DESCRIPTION OF BASIC FUNCTIONS
2.1 READINGS DISPLAYING
The device has LED indicator on a faceplate for visual displaying of the readings (fig. 2). Readings are
displayed in cubic meters up to the fourth decimal point on a cumulative total.
During the operation of the meter, the number of packets sent over the radio channel is displayed
on the LED indicator every 2 minutes, while the “SP” symbol is displayed in the most significant bit (on the
far left).
Figure 2 — Device basic elements
When the meter is turned on for the first time, the following parameters are displayed one by one
on the LED indicator (each one for the 5 seconds):
•name of the built-in software of the meter;
•software version number;
•software ID (check sum);
•method of check sum calculation;
•serial number of the meter in the “SХХХХХХХХ” format (for example, “S40488568”);
•date of the meter verification in the “Id dd.mm.yy” format (for example, “Id 01.01.20”).
2.2 METER’S OPERATION MODES
To optimize energy consumption, the meter has two operation modes:
•"Storage" - the metrological part works (the meter measures the volume and displays the
accumulated water consumption in cubic meters), the communication part does not work (the
meter does not transmit data via the radio channel). In the "Storage" mode, the LED indicator
displays readings in the "СХХХХ.ХХХХ" format (for example, "С0008.7802");
•"Operation" - the metrological and communication parts work.
The meter is supplied by default in the "Storage" mode, to remove from which it is necessary to
bring the external magnet for 15-20 seconds to the area of reception of the external magnetic field, see
p.2.5.
External magnetic field
reception area
Optical port
LED indicator
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2.3 OPTICAL PORT
There is an optical port (fig. 2) for connection to computer, which also used for testing. The adapter
“Opticalport-USB” connected to the USB-port of computer carries out connection between the optical port
and computer.
“Vega LoRaWAN Configurator” application allows reading and changing the meters parameters. See
detailed application description in a part 3.
The opto-emitter of the optical port is used as a technological optical pulse output for checking the
meter during production. During operation, the meter is verified by the comparison method.
2.4 INTERNAL CLOCK
Time on internal clock may set automatically when the device connects to the “Vega LoRaWAN
Configurator” application and may corrected via LoRaWAN network.
“IoT Vega TimeCorrector” application carries out an autocorrecting procedure via LoRaWAN
network. The device sends time correction request once a week.
2.5 ELECTRONIC MAGNETIC SEAL
The meter has a Hall sensor for fixing of the external magnetic field and it is located under faceplate
of the device (fig.2). That function named as an electronic magnetic seal.
From the 1st second of external magnetic field influence, which strong enough, the meter LED
indicator displays warning symbol “b” at the high order digit place (first index) but readings still displaying.
If the external magnetic field influence continues more than 5 minutes, then device locks LED
indicator and send emergency message with lock flag. Herewith, the LED indicator displays warning symbol
“b” but readings not displaying. Only the dispatcher via the LoRaWAN network can unblock a LED indicator
using a special command.
There are device controlling functions, which activated by a magnet getting on external magnetic
field reception area in table 2.
Table 2
Time of external magnetic
field influence
Event Comment
Less than 2 seconds
Optical port activation for 20
seconds
After 20 seconds, the optical port is
deactivated if it is not in use
From 15 to 20 seconds
Emergency communication
session, switching from
“Storage” mode
While communication session the LED
indicator displays warning symbol “p” at
the high order digit place but readings
still displaying
5 minutes and more Lock of the LED indicator
The LED indicator displays warning
symbol “b” but readings not displaying
2.6 LORAWAN
2.6.1 CONNECTION TO THE NETWORK
Meter supports two activation methods in the LoRaWAN network:
•ABP (Activation By Personalization) – meter sends data to the LoRaWAN network according to pre-
configured schedule (every 12 hours by default).
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•OTAA (Over The Air Activation) – meter makes three trying to connect the network with configured
frequency plan (RU868 by default). The meter will begin to send data when it receives the LoRaWAN
activation confirmation. If all attempts fail, the meter will continue to accumulate data and will
attempt to connect to the network every six hours.
By default, meter makes attempts to connect to the network with OTAA method once a day until it
connected to the server. You can change default settings via “Vega LoRaWAN Configurator” application (see
part 3.5).
You can initiate emergency communication session including activation by a magnet getting on
external magnetic field reception area for 15-20 seconds (fig.2).
2.6.2 CLASS А DEVICE
Meter is class A device (by LoRaWAN classification) and has the following features:
•ADR («Adaptive Data Rate»);
•sending of confirmed messages (configurable);
•storing undelivered messages in device memory while sending messages with confirmation;
•adjustable data collection and transmission periods;
•temperature measurement;
•charge measuring of the built-in battery in %.
2.6.3 COMMUNICATION AND COLLECTION PERIODS
2.6.3.1 COMMUNICATION PERIOD
Communication period may be equal to 1, 6, 12 and 24 hours. Device sends data in random point in
time during set period:
•If communication period equal to 1 hour, then during the next hour;
•If communication period equal to 6 hours, then during the next 6 hours;
•If communication period equal to 12 hours, then during the next 12 hours;
•If communication period equal to 24 hours, then during the next 24 hours.
2.6.3.2 DATA COLLECTION PERIOD
Data collection period may be equal to 1, 6, 12 and 24 hours. Meter saves data in the internal
memory with time by the internal clock:
•at 00.00 when the period is equal to 24 hours;
•at 00.00 and at 12.00 when the period is equal to 12 hours;
•at 00.00, 6.00, 12.00 and 18.00 when the period is equal to 6 hours;
•at the beginning of current hour when the period is equal to 1 hour.
The readings are stored in the meter memory until the next communication session; maximum
number of saved messages is 200. At the next communication session, the device starts sending
accumulated messages, from the earliest to the latest.
With the "Confirmed uplinks" option turned off, the device just sends all accumulated messages to
the network in order from the earliest to the latest. There is no check of package delivery in this mode. Non-
transmitted messages do not save in the device memory.
With the "Confirmed uplinks" option turned on, the device will send the next message only after
receiving a confirmation of the delivery of the previous one. If such confirmation has not received after the
fulfilled in the settings uplink number of transmissions, the meter completes the communication session
until the next one according to the schedule. In this case, the device continues to collect data according to
the data collection period and store it in memory. Non-transmitted messages remain in the device memory
until the next communication session.
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3 “VEGA LORAWAN CONFIGURATOR” APPLICATION
3.1 OPERATING MODES
The "Vega LoRaWAN Configurator" application (hereinafter – application, configurator) is intended
for setting up the device via USB.
The configurator has two modes of operation - "Simple" and "Expert". In the "Simple" mode, only
basic settings are available. In the "Expert" mode, the basic settings, advanced settings, and the ability to
check the coverage area of the signal from the gateways are available. Next, the work of the application is
considered in the “Expert” mode.
ATTENTION! Full functionality becomes available after password entering. You can see only DevEUI and no
available any settings or other information without the password. The “Send Password” command is placed
in the “Commands” field in the “Vega SHVE/SGVE v.2” tab. A password is provided upon request.
Instructions for providing LoRaWAN keys and passwords for metering devices manufactured by OOO PKF
"BETAR" can be downloaded on the websites iotvega.com and betar.ru in the relevant sections.
3.2 APPLICATION INTERFACE
The "Vega LoRaWAN Configurator" application does not require the special installation. When the
executable file is launched, the window for working with the application appears (fig. 3).
Figure 3 — Application workplace
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The menu on the left allows you to switch between the “Simple” and “Expert” modes, select the
device model, connect to the device, or disconnect from it, get, and apply settings.
The application window contains three tabs – Device info, LoRaWAN settings and device settings.
The language selection menu is in the upper right corner.
3.3 CONNECTION OF METER TO COMPUTER
3.3.1 ADAPTER CONNECTION, DRIVER INSTALLING
Meter has the optical port for connection to computer, which also used for testing. The adapter
“Optical port-USB” connected to the USB-port of computer carries out connection between the optical port
and computer.
Before connecting the device to the computer for the first time, you must install the driver for the
adapter «MCP2200 Windows Driver», which can be downloaded from iotvega.com. After running the
executable file McphCdcDriverInstallationTool.exe, the installer window will appear (fig. 4).
Figure 4 — Window «Мастер установки драйверов устройств»
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In this window, you need to click «Далее». In the window that appears, agree to the terms of the
license agreement, then «I accept» and «Далее» (fig. 5). The installation will begin after that.
Figure 5 — Driver installing
After finish of install process the window will appears (fig. 6). After pressing «Готово» adapter
“Opticalport-USB” is ready for operation.
Figure 6 — Driver installing successfully
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3.3.2 OPTICAL PORT ACTIVATION
Launch the program and activate optical port.
For optical port activation the magnet getting on external magnetic field reception area during short
time (less than 2 seconds). Whereupon the optical port activates for the 20 seconds. “Optical port-USB”
adapter must be located and fixed for an operation time as it shown on figures 7,8.
Figure 7 — “Optical port-USB” adapter location in relation to meter_ General view
Figure 8 — “Optical port-USB” adapter location in relation to meter_ Close-up
At the main window of the application, you need to choose the device model (“Vega SHVE/SGVE
v.2”), COM-port number and press “Connect” button (fig. 9) while optical port is active.
Figure 9 — The main settings view for connection the device
Application connects to the device and device selection menu becomes inactive.
To read the settings from the device, you need to click the "Get settings" button (fig. 10), until this
point the application will display the default settings or from the last connected device.
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Figure 10 — “Device info” tab
After making the necessary changes to the settings, you should click the "Apply settings" button and
only then disconnect from the device with the "Disconnect" button.
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3.4 “DEVICE INFO” TAB
3.4.1 BASIC DESCRIPTION
The "Device info" tab displays network information about the device, - there are basic information
(Device info field), current state (Network info, Link check), keys for device activation in LoRaWAN network
(ABP info, OTAA info, Key management), log (Device output).
Figure 11 — “Device info” tab
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3.4.2 FIELDS DESCRIPTION
3.4.2.1 «ABP info» – displays the data necessary to register the device in the LoRaWAN network with
ABP method (Activation By Personalization).
3.4.2.2 «OTAA info» – displays the data necessary to register the device in the LoRaWAN network
with OTAA method (Over The Air Activation).
3.4.2.3 «Key management» (not displayed in the "Simple" mode) – allows you to change the factory
device activation keys or reset the keys back to the factory settings (fig. 12).
Figure 12 — “Edit device keys” window at “Key management” field
3.4.2.4 «Device info» – displays information about the device model, its firmware version and time
in UTC (+0.00), factory number and meter verification date.
ATTENTION!The date of the meter verification does not correspond to the current.
3.4.2.5 «Network info» – shows whether the device connecting to the LoRaWAN network and its
network address.
3.4.2.6 «Join network» button – launch the LoRaWAN network connection procedure with the
previously selected ABP or OTAA method. If the device is already connecting to the network, reconnection
procedure will occur.
3.4.2.7 «Link check» button (not displayed in the "Simple" mode) – when pressed, the device sends
a special signal to the LoRaWAN network, in response to which the network informs it about the number of
gateways that received this signal and the signal quality (fig. 13). This button only works while the device is
connecting to the network.
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Figure 13 — “Link check” field
3.4.2.8 «Device output» (not displayed in the "Simple" mode) – monitoring the device status,
displaying all events in real time.
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3.5 “LORAWAN SETTINGS” TAB
3.5.1 BASIC DESCRIPTION
The "LoRaWAN Settings" tab allows you to configure various parameters of the LoRa network (fig.
14).
Figure 14 — “LoRaWAN settings” tab
3.5.2 FIELDS DESCRIPTION
3.5.2.1 «Region»
“Region” allows you to select RU868, EU868, KZ865 or specify a custom frequency plan (fig. 15).
Figure 15 — Region choice
The meter supports the frequency plans specified in table 3.
Table 3
Frequency plan2
Channel
Frequency
Modulation
EU868
1
868.1
MultiSF 125 kHz
2
868.3
MultiSF 125 kHz
3
868.5
MultiSF 125 kHz
RX2
869.525
SF12 125 kHz
RU868
1
868.9
MultiSF 125 kHz
2
869.1
MultiSF 125 kHz
RX2
869.1
SF12 125 kHz
KZ865
1
865.1
MultiSF 125 kHz
2
865.3
MultiSF 125 kHz
3
865.5
MultiSF 125 kHz
RX2
867.5
SF12 125 kHz
Custom
Set with application
2By default, the device supports two frequency plans and the custom, but it is possible to order firmware for
other frequency plans: IN865, AS923, AU915, KR920, US915, KZ865
This manual suits for next models
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