BM BJONG User manual
BJONG
User Manual
Firmware Revision: Flow-V1.0.1 / Standard-V1.0.1
App Revision: Easysetup 1.6.1
Manual Revision: V1.0 dtd 16/11/2020
Bjong –User Manual –V1.0 - pg.2
Documents revision
REV.
Type of Revision
Approval
Date
01
First Version in English
MG
16/11/2020
Bjong –User Manual –V1.0 - pg.3
1Summary
1 Summary 3
2 Introduction 6
2.1 Manual feasability 6
3 General information 7
3.1 Main sensors 8
3.2 Main applications 8
3.3 Technical, functional, electrical and mechanical features 9
3.4 Functional features 10
4 Dimensions and fixing system 12
4.1 Mounting bracket 13
4.2 Quick release wall mounting support 13
4.3 Combined mounting bracket 14
5 Case opening and closure 15
6 Power supply 17
6.1 Internal connectors and power selector 18
6.2 Internal battery replacement 19
6.3 External source power supply 21
7 Wiring and connections 22
7.1 Wiring ID colours 23
8 SIM card 25
9 Working modes 27
9.1 Continuous mode 27
9.2 Discontinuous/Low power Mode 27
9.3 Data transmission 28
9.4 Freezing 28
10 Status led 29
11 App EasySetup 30
11.1 Device features for App EasySetup Installation 30
11.2 Installation and update 31
11.3 Authorizations 31
11.4 How does EasySetup works? 32
Bjong –User Manual –V1.0 - pg.4
11.4.1 App working mode (live and off-line) 32
11.4.2 Status bar 33
11.4.3 App Settings 34
11.4.4 Codes and Passwords 35
11.5 Wi-Fi Connection to the device 35
11.6 Profiles management 36
11.6.1 Duplication and association of profiles 37
11.7 “Save” and “Save and upload” buttons 38
12 Configuration 39
12.1 Sensors connected to RS485 port 39
12.1.1 RS485 standard 39
12.1.2 RS485 flow 42
12.2 Built-in pressure sensor 51
12.3 Analog inputs 52
12.4 Digital inputs 53
12.5 Digital events 54
12.6 Mathematical functions 55
12.7 Auto cleaning 55
12.8 Warm up times 56
12.9 Variables log 56
12.10 Data 57
12.10.1 Real time data 57
12.10.2 Historical Data 57
12.11 Communication 59
12.11.1 Connection parameters 59
12.11.2 Data Transmission 61
12.11.3 SIM 63
12.11.4 Functional test 64
12.12 Alarms 65
12.12.1 Thresholds 65
12.12.2 Users 66
12.12.3 Download events 66
Bjong –User Manual –V1.0 - pg.5
12.12.4 Reset alarms 66
12.13 Service Function 67
12.13.1 Reboot 67
12.13.2 Firmware Update 67
12.13.3 Wi-Fi password 68
12.13.4 Set modem profile 68
12.13.5 Battery calibration 68
12.13.6 Factory settings 69
12.13.7 Diagnostics 69
13 Conformity certificates of manufacturer 70
14 Maintenance 72
15 Service 72
16 Warranty 72
17 Disposal 72
18 Ordering Code 73
19 Appendix A –Batteries 74
19.1 Battery charging 74
Bjong –User Manual –V1.0 - pg.6
2Introduction
Dear Customer,
congratulations for choosing a product manufactured by B.M. Tecnologie Industriali.
This manual is the main source of information for the right use of Bjong.
This manual includes important information, advices and warnings for the right use of the device and its
potentials.
Please read this manual carefully and before starting any installation procedure. Pay attention to the
notes referring to Warnings and Safety.
Keep the manual in a safe place and ready to use in any moment.
If you have problems or cannot understand the information included, please contact the manufacturer or
its local Distributors.
The manufacturer, B.M. Tecnologie Industrial, is not responsible for any damages to people
or things caused by the misuse of the device.
The manual states the right way to use it.
This manual describes all the functions of Bjong, referring to any specific version of hardware
and/or software. Optional contents, dedicated functions or peculiar versions are NOT tagged
specifically. You just need to consider only the information referring to the device you have.
Contents implemented during the device working period are precisely identified.
B.M. Tecnologie Industriali is constantly improving its devices, though it has the right to
change the device’s features for commercial/technical purposes. For further information,
please contact the sales team of B.M. Tecnologie Industriali.
2.1 Manual feasability
This manual describes features, functions, and instructions for using Bjong. For installation and start-up
of the sensors, please refer to their specific manuals.
Bjong –User Manual –V1.0 - pg.7
3General information
Bjong is a data logger developed and made by B.M. Tecnologie Industriali using its experience in
thousands field applications.
It has its main use in all the functions regarding water cycle, such as: flow rate and pressure measurement
in full pipes or open channels, parameters analysis on drinking and waste water, spillways and overflows
activations, submerged and not contact level measurement, events acquisition (on/off), etc.
Bjong can be supplied by an internal primary battery to manage low consumption sensors for a long time,
but it could also be supplied by an external battery, connected to a dedicated input, to manage sensors
with higher power consumption. External high capacity battery can be easily removed and replaced.
Bjong is suitable for medium and long term monitoring campaigns. Its built-in memory can record over
800.000 records.
Its built-in modem allows transmission of saved data and diagnostics to a remote server in order to
monitor the device’s status and the data reading. The device could be equipped with a built-in high
efficiency antenna for data transmission even if the signal is low, or with an external antenna.
Bjong can manage alerts on every variable through the event recording, transmitting to a remote server,
sending SMS to a list of users. For each alarm it is possible set activation and deactivation delay.
IP68 protection of the datalogger unit and its modules complete the excellent performances of this device.
EasySetup App for AndroidTM, connecting via Wi-Fi, thanks to its simple interface, similar to smartphones,
allows the user to setup the device and read data.
Bjong –User Manual –V1.0 - pg.8
3.1 Main sensors
✓Area velocity doppler sensor for flow measurement on part filled pipes and open channels.
✓Transit Time module for flow measurement on full pipes.
✓Built-in pressure sensor for pressure measurement of full pipes.
✓Radar and Ultrasonic sensor for level/flow measurement on open channels.
✓Overflow sensor for overflow detection.
✓Analytical sensors for the analysis of water quality and chemical-physical parameters.
✓Digital pulse inputs for volumetric flow meters reading.
✓Digital event inputs for monitoring on/off status (activation).
✓Connection of standard 4..20mA or 0..10V sensors for standard signal recording.
3.2 Main applications
✓Water Losses: DMAs and measurement of inflows.
✓Monitoring Campaigns for the calibration of mathematical models.
✓Measurement in the sewage networks for overflow activation and volumes.
✓Water losses in water networks.
✓Search for extraneous waters in sewage networks.
✓DMAs –District Metered Areas.
✓Overflow check.
✓Fire systems check.
✓Calibration of numerical models.
✓Long and short term measurement campaigns in aqueducts and sewers.
✓Water balances.
✓Pumping stations.
✓Water treatment plants.
✓Hydroelectric plants.
✓Industrial processes monitoring.
Bjong –User Manual –V1.0 - pg.9
3.3 Technical, functional, electrical and mechanical features
HARDWARE FEATURES DATALOGGER BJONG
I/O
2 Analog Inputs
4 wires –4..20mA and 0..10V –Active 42mA@24V –Resolution: 16 bit
4 Digital inputs (active)
Digital inputs (clean contact) –Max frequency: 60 Hz
RS485 (supplied)
RS485 interface powered
4 Digital inputs (events)
ON/OFF event (clean contact)
2 Relays
Configuration SPST-NO - Contact nominal current: 500mA –Contact
nominal tension: 200 Vac/Vdc.
Relay 1: cleaning function. Relay 2: alarm function.
Built-in pressure sensor
Range to be selected in order. Connection ¼”GAS M
DIAGNOSTICS
4 Logic inputs
Check case closure
Internal case relative
humidity and temperature
Accuracy +/-2% –Resolution: 14 bit
Battery tension reading
Resolution: 10 bit
POWER SUPPLY
Low voltage
Tension 3,6VDC
Standard voltage
8..24VDC
Power consumption
Max.: 200mA @ 12V - Min.: 0,08mA @ 12V
DATA ACQUISITION MEMORY
Internal Flash
800.000 records –Cyclic buffer
REAL TIME CLOCK
Real Time Clock
Internal with back-up battery
CONNECTIVITY
Modem
2G and NBIoT (SIM holder included for standard SIM card)
Wi-Fi
Suitable for AndroidTM systems, for setup and data display
ANTENNA
Built-in
Standard or high efficiency for transmissions in case of low signal.
External
Linear Up Polarization with 1.5 mt cable
Bjong –User Manual –V1.0 - pg.10
INTERFACE
4 Leds
Green: App connection, Red: active alarm, Yellow: diagnostics, Blue: data
transmission modem status
Activation
By magnet
ENVIRONMENTAL
Temperature
-10°C … +50°C (14°F … 104°F)
IP68 Protection degree
Immersion up to 1 year @ 1 mt
MECHANICAL
Weights and Dimensions
H242 mm X D166 mm –1,1 Kg (mounting system NOT included)
Connectors
Water proof, military type
COMPLIANCE
Electromagnatic Comatibility
(EMC) e Safety (LVD)
Directive 2014/53/EU RED –Art. 3.1a–Art. 3.1b–Art. 3.2
EN 61326-1:2013
EN 62311:2008
EN 62368-1: 2014 + A11:2017 + AC:2017
3.4 Functional features
FUNCTIONAL FEATURES OF BJONG
CONFIGURATION
Through a free of charge AndroidTM app, the user can setup the device with a simple and intuitive
interface typical of modern apps. In, the user can download data and events, monitor the values read,
diagnose the device. Bjong is connected to the user's device (tablet, smartphone) via a secure Wi-Fi
connection. The downloaded files are in CSV format, easily processed in Excel.
Via Remote system (under development)
DIAGNOSTICS
Through signal leds, by checking the case’s mechanical and environmental conditions.
DATA ACQUISITION
Data acquisition time from 1 minute to 60 minutes using cyclic buffer.
255 alarm event using cyclic buffer
Warm-up time for each I/O
I/O CONFIGURATION
Analog inputs: measuring range, entering a linearization curve on 16 points, entering offset. Calibration
on low and full range. Current or voltage input selection.
Digital counter inputs: pulse weight, totalization, average value in the unit of time
Bjong –User Manual –V1.0 - pg.11
Event digital inputs: check on/off status (activation), log status, sampling rate change on event.
RS485 port (FLOW vers.): complete configuration of the connected sensor, reading of variables, flow
calculation
RS485 port (STD vers.): reading up to 20 variables using Modbus RTU protocol
Relay: configuration for alarm signaling and cleaning function (cleaning system not included).
ALARM EVENT MANAGEMENT
Alarm events on each of the variables read by the device. Each event is associated with an alarm message
which is recorded in memory and can be sent via SMS or GPRS. For each alarm user can set activation
and deactivation delay. Sending hystorical data every alarm.
ADVANCED FUNCTION
Sensor cleaning function: cleaning time, waiting time after cleaning.
Mathematic function: easy operation of I/O
CONNECTIVITY TO A REMOTE SERVER
Data sending to a remote server using HTTP and MQTT protocol (data in JSON fomat) or FTP (CSV file).
Ability to select 2G or NBIot network (NBIot connection available in next firmware version)
Automatic search for the best operator (with multi-operator SIM).
Possibility to identify the IMEI of the modem and IMEI of the SIM.
DATA AND CONFIGURATION SENDING
Saved data from the oldest to the last one.
Data transmission frequency from 1 to 24 hours.
Configuration parameters are sent to check the configuration/setup remotely.
SMS
Alarm events can be sent via SMS to 3 users max. If the transmission fails, the device could be setup to
retry sending SMS to selected intervals
DATE/TIME SYNCHRONIZATION
If enabled, time can be synchronized to a remote NTP server.
Bjong –User Manual –V1.0 - pg.12
4Dimensions and fixing system
Bjong was designed to be wall mounted with a bracket made of stainless steel. The bracket keeps the
device in vertical position in order to reach external connectors easily.
All dimensions are expressed in millimeters.
Bjong –User Manual –V1.0 - pg.13
4.1 Mounting bracket
This bracket is used to hook up the device through the closing
clamp.
The bracket can be wall mounted by using two plugs (hole
diameter in the bracket is 10mm).
4.2 Quick release wall mounting support
If you plan to replace the device frequently, it is possible to use a
wall support that allows the quick release of the mounting
bracket.
Once fixed to the wall with two dowels, the bracket simply hooks
from above by inserting the two holes in the threaded stubs at the
top and screwing the two nuts.
This support is also particularly suitable when using external
batteries, in order to simplify their replacement.
Bjong –User Manual –V1.0 - pg.14
4.3 Combined mounting bracket
If your device has an external battery, or in other peculiar cases including two devices, a
combined mounting system is foreseen. It consists of two brackets with a coupler.
The coupler allows two mounting brackets to be hold together, in order to reduce installation
space and use a single quick-release system.
Bjong –User Manual –V1.0 - pg.15
5Case opening and closure
In standard operating conditions, it is not necessary to open or close the Bjong case.
But it could be in these cases:
✓Internal battery replacement
✓SIM card Installation/replacement/removal
✓Data transmission antenna replacement
If necessary, unscrew the collar external clamp nut and use the quick-release system to remove the
device.
Once the clamp is removed, separate the two parts of the case.
To close bring the two parts of the case closer so that they fit together. Pay attention to any wires: do not
press them between the parts of the case itself or of the internal components. Install the locking collar
and tighten the nut.
The correct tightening is done when the two parts of the case come into contact. A led help the user to
detect the right tightening.
Before closing the case you have to check if all connections (internal battery, antenna…) are
ok.
The IP68 protection degree of the case is guaranteed by two O-rings: before closing, check
that they are present, correctly positioned, lubricated and not damaged. Cracks, cuts and
deformations can seriously affect the IP68 seal of the case.
Long periods of closure, exposure to high or low temperatures are natural conditions of
deterioration of the O-rings.
In the event of damage, it is necessary to replace them by requestingthem from the assistance
service.
Bjong –User Manual –V1.0 - pg.16
A drying bag is necessary to remove any residual moisture, place it inside the case before
closing. It is possible to request a desiccant kit from the assistance service.
O-rings and drying bags must be replaced every time the case is opened.
B.M. Tecnologie Industriali is not liable for any damage caused by failure to keep the case due
to non-compliance with the indicated requirements.
Bjong –User Manual –V1.0 - pg.17
6Power supply
Bjong can be powered in three different ways:
1. Internal 3.6Vdc
2. Internal 8..24Vdc
3. External 8..24Vdc through POWER SUPPLY connector
The internal power supply is intended to be supplied by primary (non-rechargeable) batteries inserted
inside the instrument case. These are high-capacity batteries, almost completely free of self-discharge,
which allow the instrument to remain active for medium-long term campaigns.
The external source can more generally be supplied by batteries (rechargeable or primary) or by a power
supply present on site with working voltage in the declared range. The use of a power supply is usually
preferred in the case of fixed installations (where main voltage is available) while external rechargeable
batteries are the ideal choice for medium-term campaigns. Rechargeable batteries, in fact, have self-
discharge and need to be recharge periodically (approximately every 6-12 months).
Typical uses are shown in the following table:
Type of power
supply
Sensors
Main application
Internal
primary 3.6V
battery
Power supply of digital/analog
inputs and built-in pressure sensor.
It cannot supply sensors connected
to RS485.
Long time monitoring activities (i.e. 4 years)
with low power sensors connected to
analog/digital inputs.
Internal or
external
primary 14.4V
battery
Power supply of digital/analog
inputs and built-in pressure sensor.
It can also supply sensors
connected to RS485.
Long term monitoring activities (>12 months)
with sensors connected to RS485. Low
sampling frequency or on event. Data
transmission: daily or on event.
This battery guarantees a low self-discharge.
External
rechargeable
11.1V battery
Power supply of digital/analog
inputs and built-in pressure sensor.
It can also supply sensors
connected to RS485.
Medium term monitoring activities (6/12
months) with sensors connected to RS485.
Elevate sampling frequency: < 5 minutes. Data
transmission: frequency < 12 hours.
External
source power
supply
Power supply of digital/analog
inputs and built-in pressure sensor.
It can also supply sensors
connected to RS485.
Monitoring activities in fixed sites, using all
types of sensors. Elevate sampling frequency:
< 5 minutes. High data transmission
frequency: < 6 hours.
B.M. Tecnologie Industriali is able to recommend and supply a wide range of batteries, so as
to ensure compatibility with the most varied installation needs.
Bjong –User Manual –V1.0 - pg.18
Disassembling the battery pack, replacing cells, attempting to recharge non-rechargeable
batteries or using unsuitable chargers can cause serious damage to the battery, things and
people.
B.M. Tecnologie Industriali is not liable for any damage caused by incorrect installation and/or
use.
6.1 Internal connectors and power selector
Inside the Bjong there are two power connectors (3.6Vdc e 8…24Vdc) and a power selector.
The connection of any internal battery and the proper setting of the selector are made according to the
customer request, so no need to be changed. If necessary, it is possible to proceed to select different
power source.
The elements necessary for powering the instrument are highlighted below:
✓RED: 8..24Vdc power connector (internal or external)
✓YELLOW: internal 3.6Vdc power connector
✓GREEN: power selector
Through the connector highlighted on the left, it
is possible to power the Bjong with a voltage in
the 8..24Vdc range.
Pay attention to respect the polarity.
On the right, example of installation of the
connector of the batteries supplied.
Through the connector highlighted in the figure, it is possible to
power the Bjong with a voltage of 3.6Vdc.
Pay attention to respect the indicated polarity.
Set the jumpers as shown in the figure to use the internal battery or
the external power source connected to the POWER SUPPLY
connector with reference voltage 8..24Vdc.
Bjong –User Manual –V1.0 - pg.19
Set the jumpers as shown in the figure to use the 3.6V internal
battery connected to CN2.
Power selector jumpers (CN24) could be fixed with resin to prevent movement. Use resin or
hot glue to lock them.
Connect only supported voltages to the connectors paying attention to respect the indicated
polarity. Inverting the polarity or not respecting the voltage values can cause serious damage
to the instrument.
Pay attention to the jumpers disposition by following the diagrams in this manual.
A wrong disposition could cause an irreversible damage.
6.2 Internal battery replacement
Bjong can be equipped wiht an internal primary battery. The battery pack can be composed of 2 or 4 cells,
The configuration in series or parallel determines its voltage and overall capacity.
To replace the battery, proceed as follows:
1. Open the case by using the external collar;
2. Remove the top cover;
3. Disconnect the battery connector from the board;
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