Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Specifications in this document are subject to change without notice.
©Elektroniksystem i Umeå AB 2019
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Important safety information
Read this manual before attempting to install the device!
Failure to observe recommendations included in this manual may be
dangerous or cause a violation of the law. The manufacturer, Elektroniksystem i
Umeå AB will not be held responsible for any loss or damage resulting from not
following the instructions of this operating manual.
• The device must not be dismantled or modified in any way.
• The device is not intended to be used as a reference sensor, and
Elektroniksystem i Umeå AB will not be held liable for any damage which
may result from inaccurate readings.
• The battery should be removed from the device if it is not to be used for
an extended period. Otherwise, the battery might leak and damage
the device. Never leave a discharged battery in the battery
compartment.
• The device must never be subjected to shocks or impacts.
• To clean the device, wipe with a soft moistened cloth. Use another soft,
dry cloth to wipe dry. Do not use any detergent or alcohol to clean the
device.
Disposal note in accordance with ElektroG and WEEE Directive
2012/19/EU
The device, as well as all the individual parts, must not be disposed
of with household waste or industrial waste. You are obliged to
dispose of the device at the end of its service life in accordance with
the requirements of ElektroG in order to protect the environment and to reduce
waste through recycling. For additional information and how to carry out
disposal, please contact the certified disposal service providers. The sensors
contain a lithium battery, which must be disposed of separately.
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Contents
Description......................................................................................................................................... 5
Main features of ELT Lite .......................................................................................................... 6
Installation .......................................................................................................................................... 7
Installing external sensors ......................................................................................................... 8
External temperature sensor ................................................................................................ 8
Analog input 0 – 3 or 0 – 10 Voltage ............................................................................... 8
Powered analog input 0 – 10V ........................................................................................... 9
Pulse count (Pull up) ............................................................................................................ 9
Pulse count (Pull down) ..................................................................................................... 10
Pulse count (Pull down) – External pulse ....................................................................... 10
Pulse count (Pull up) – S0 input ...................................................................................... 11
4 – 20 mA input................................................................................................................... 11
Water leak input .................................................................................................................... 12
Meter (Decagon) sensor input ......................................................................................... 12
Sensor configuration ...................................................................................................................... 13
NFC Configuration ..................................................................................................................... 13
Over the air configuration ........................................................................................................ 14
Application parameters............................................................................................................. 14
Sensor behavior .............................................................................................................................. 14
NFC Read / Write ...................................................................................................................... 14
Sensor startup ........................................................................................................................... 15
Sampling mode / Periodic measurement ............................................................................. 16
External sensors ........................................................................................................................ 16
Specifications .................................................................................................................................. 17
Sensor payload format ............................................................................................................. 17
4
Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Regulations ...................................................................................................................................... 18
Legal Notices ............................................................................................................................. 18
Federal Communication Commission Interference Statement .......................................... 18
Non-modifications Statement ................................................................................................. 19
Caution ........................................................................................................................................ 19
Industry Canada Statement ..................................................................................................... 19
Declaration of conformity ........................................................................................................ 19
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Description
ELT Lite is a universal outdoor device for LoRaWAN® wireless network. It is
enclosed in an IP67 box and is designed to be in extreme conditions. ELT Lite
can measure analog or digital signals. Use it together with electricity meters, flow
meters, analog sensors, moisture sensors and other external sensors. This is a
battery-powered device equipped with NFC (Near Field Communication) and can
easily be configured from a smartphone.
The barcode contains DevEUI and sensor type. This label is located at the back
of your device,
ELT-lite
6
Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Main features of ELT Lite
• Compatible with LoRaWAN® specification 1.0.3
• Analog 0 – 10 V input
• Digital input
• Pulse counter
• Direct connection to various external sensors and equipment
• Easy installation
• Easy configuration
• IP67 Classified
• Battery-powered
• Long-range communication
• Configurable over NFC
• Configurable over the air
• Ten years of battery life*
• Supported channel plans: US902-928, EU863-870, AS923, AU915-
928, KR920-923, RU864, IN865 & HK923
• CE Approved and RoHS compliant
*Depending on settings and environmental factors
7
Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Installation
1. Remove the front lid of the sensor by removing the four screws.
2. Install the battery. The ELT Lite requires one AA battery. The battery
type is 3.6V Lithium Battery (ER14505).
Caution: Using batteries other than the ones provided may result in loss of performance
and battery life, and also damage to the device. Dispose of properly, observing
environmental protection rules.
3. Connect any eventual external sensors.
4. Close the lid and tighten the screws carefully. Make sure that the cable
gland and antenna connection is tightened to prevent ingress of
moisture.
5. Mount the device by using the two holes on the sides.
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Installing external sensors
External temperature sensor
Configured for 1-wire interface. Connect a DS18B20 compatible sensor. Select
“Temperature sensor 1 wire” in the application “Sensor Settings”. ELT input is internally
pulled up by 2.2kΩ.
Analog input 0 – 3 or 0 – 10 Voltage
Input signal between input and ground.
Select “Analog input 0-3V” or ”Analog input 0 – 10V” in the application “Sensor
Settings”. ELT input is internally pulled down.
/ 0-10V
/ 0-10V
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Powered analog input 0 – 10V
Input signal between input and ground. +3V present at B+ pin.
Select “Analog input” in the application “Sensor Settings”. Select “Eternal startup time”
and configure ON-time for sensor. External startup time is how long the sensor will be
powered before sampling value. ELT input is internally pulled down and the input
impedance is 7.4 kΩ
Pulse count (Pull up)
Input signal between input and ground.
Select “Pulse input (pull up)” in the application “Sensor Settings”. ELT input is internally
pulled up by ~50 k Ω*.
10
Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Pulse count (Pull down)
Input signal between input and B+.
Select “External startup time” in the application “Sensor Settings” and configure ON-time
for always on that is >1000000ms.
Select “Pulse input(pull down)”. ELT input is internally pulled down by ~50 kΩ*.
Pulse count (Pull down) – External pulse
Input signal between input and GND. Pulse signal from 3 to 12 voltage.
Select “Pulse input (pull down)” in the application “Sensor Settings”. ELT input is
internally pulled down by ~50 kΩ*.
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Pulse count (Pull up) – S0 input
S0 signal between input and ground.
Select “Pulse input (pull up)” in the application “Sensor Settings”. ELT input is internally
pulled up by ~50 kΩ*.
4 – 20 mA input
Select “Analog input” in the application “Sensor Settings”. Connect resistor parallel to the
input. Value of R can be calculated as 𝑈 = 𝑅 ∙ 𝐼. For full range, use 500Ω resistor.
(20mA will then read as 10V).
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Water leak input
Connect water leak cable, sensor, or open ends to IO2 and IN.
Select “Water leak” in the application “Sensor Settings”. Range 0-255 depending on
conductivity.
Meter (Decagon) sensor input
Connect the Meter (Decagon) sensor 10HS, EC-5 or ECH20 5TE according to the
diagram. Try to use a short cable. Select “Meter (Decagon)” in application “Sensor
Settings” or “Meter (Decagon) ECH20 5TE” if you have connected ECH20 5TE.
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Sensor configuration
All sensor settings can be configured via a smartphone application with NFC
(Near Field Communication) or over the air via the network server and downlink
data to the sensor. The sampling rate, spreading factor, encryption keys, port,
and modes can be changed. All sensor settings can be locked from the server or
NFC to make end-users unable to read or change settings on the sensor.
NFC Configuration
1. Download ELSYS “Sensor Settings” application from Google Play or App
Store (from iOS 13) and install it on a smartphone or tablet. The device
must support NFC.
2. Enable NFC on the device and start the application.
3. Place your device on top of the NFC antenna on the sensor.
4. Remove the device. Current settings will be displayed in the application.
5. Use the application to change any settings if needed.
6. Quickly tap the device on top of the NFC antenna to give the new settings
to the sensor. Make sure that the application confirms your new settings.
7. Wait for the sensor to reboot (5 sec), indicated by the LED flashing. Sensor
settings have been updated.
See the section “Help” in the application for more information.
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Over the air configuration
All settings may be configured over the air via your LoRaWAN® infrastructure.
Please visit the support section on our webpage for more information regarding
downlink protocol.
Application parameters
All parameters for the “Sensor settings” application can be found in our settings
document. Please visit the support section on our webpage for more information.
Sensor behavior
NFC Read / Write
1. When reading or writing NFC
configuration data to the sensor, it starts
a timer and delays its action 5 seconds.
2. After the delay, the sensor determines if
the NFC data has changed or not. If the
data has changed, the sensor reboots
and starts from power-up.
3. Write your settings in the application
and then locate the NFC antenna of the
phone and sensor. Keep the two
devices close and don’t move them to
get the best connectivity as possible
when writing or reading data to the
sensor. Bad connection can be caused
by long distance, wrong location, or
rapid movement.
4. When you have written data to the sensor, let the sensor reboot and restart
before trying to write again.
You should always validate your settings by reading the NFC data after the
sensor has restarted.
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Sensor startup
1. When the sensor starts up, it loads
configuration from the internal memory and
merges it with user configuration.
2. When the configuration is done, the sensor
writes the new configuration to the NFC chip.
The sensor always writes new configurations
to the NFC chip when something changes in
the sensor or if NFC data is corrupted by an
NFC writer or phone. The sensor always writes
the new configuration to NFC chip at startup.
3. When the configuration is done, the sensor
tries to join the network if OTAA (Over the Air
Activation) is enabled.
4. The sensor LED flashes orange when it tries to
join a network. It will try to join every 10
seconds initially. This interval will increase to
save battery, at most up to one time per hour.
5. After successful connection to a network, the
sensor sends a settings packet and enters
sampling mode.
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Sampling mode / Periodic
measurement
The sensor makes periodic
measurements according to the user
configurations.
External sensors
The sensor makes periodic
measurements according to the user
configurations.
External sensors may have additional
startup time. Configure the “External
startup time” according to this.
For best performance, use a cable as
short as possible to your external
sensor.
Be careful when configuring the external
startup time for your external sensors. If
external startup time is set to > 1000000 ms, the external sensor output will be
constantly on. This will affect the battery life.
17
Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Specifications
Sensor payload format
The device uses the standard ELSYS payload format. Please see the specified
document on our webpage.
Power supply:
3.6V DC
Battery type:
AA 14505 (Li-SOCI2)
EU directives compliance:
RoHS 2011/65/EU
WEEE 2012/19/EU
Radio protocol:
LoRaWAN®
Radio frequency band:
US902-928, EU863-870, AS923,
AU915-928, KR920-923, RU864, IN865
& HK923
Range:
8 km*
Operating conditions
-40 °C – 60 °C
-40 °C – 85 °C (External power supply)
0 – 100 % RH
Dimensions
94 x 59 x 35 mm
Battery life
Up to 10 years**
*Measured with settings: SF10, 868 Mhz. The range can be greater or less, depending on terrain and building
structure.
**Depending on settings and environmental factors.
18
Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Regulations
Legal Notices
All information, including, but not limited to, information regarding the features,
functionality, and/or other product specification, are subject to change without
notice. Elektroniksystem i Umeå AB reserves all rights to revise or update its
products, software, or documentation without any obligation to notify any
individual or entity. ELSYS and ELSYS logo are trademarks of Elektroniksystem i
Umeå AB. All other brands and product names referred to herein are trademarks
of their respective holders.
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class
B digital device, according to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: support@elsys.se ǀ Web: www.elsys.se
Non-modifications Statement
Any changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate this equipment.
Caution
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired
operation.
This device and its antenna(s) must not be co-located or operating in
conjunction with any other antenna or transmitter except in accordance with FCC
multi-transmitter product procedures.
Industry Canada Statement
This device complies with Industry Canada license-exempt RSS standard(s).
Operation is subject to the following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Declaration of conformity
Hereby, Elektroniksystem i Umeå AB declares that ELT Lite complies with the
essential requirements and other relevant provisions of Directive 1999/5/EC.
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