Elsys EMS Desk User manual

Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: www.elsys.se
Specifications in this document are subject to change without notice.
©Elektroniksystem i Umeå AB 2020

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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: 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 only intended for indoor use. Do not expose it to moisture.
•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.

3
Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: www.elsys.se
Contents
Important safety information ...........................................................................................2
Description .........................................................................................................................4
Main features of EMS Desk........................................................................................5
Installation ..........................................................................................................................6
Service and maintenance.................................................................................................7
Desk occupancy sensor...............................................................................................7
Temperature/humidity sensor.....................................................................................7
Sensor configuration.........................................................................................................8
NFC Configuration ........................................................................................................8
Over the air configuration............................................................................................8
Application parameters ................................................................................................8
Sensor behavior.................................................................................................................9
NFC Read / Write..........................................................................................................9
Sensor startup............................................................................................................10
Sampling mode / Periodic measurement ..............................................................11
Schedule Transmission .............................................................................................11
Desk sensor................................................................................................................12
Specifications ..................................................................................................................13
Sensor payload format..............................................................................................13
Regulations......................................................................................................................14
Legal Notices..............................................................................................................14
Declaration of conformity.........................................................................................14

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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: www.elsys.se
Description
EMS Desk is a sensor slightly larger than an AA-battery and ideal for mounting
under desks. It can be used for measuring desk occupancy or as a discrete
indoor environment sensor. With the body heat sensor, it can detect when
somebody is standing/sitting by a desk. EMS Desk is 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.

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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: www.elsys.se
Main features of EMS Desk
•Compatible with LoRaWAN® specification 1.0.3
•Detects occupancy with an infrared temperature sensor
•Can detect occupancy even if people are sitting/standing still
•Measures ambient temperature
•Measures ambient humidity
•Detects acceleration
•Detects occupancy
•Easy installation
•Easy configuration
•May be installed on any flat surface
•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

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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: www.elsys.se
Installation
The EMS Desk should be mounted under a desk or table where the occupancy
needs to be measured. When installing, place the device far enough from the
edge of the table to make sure it is not possible to reach by the user. Mounting
close to the edge may result in damage to the device. Make sure that the
thermopile sensor is facing the front of the desk or desired area.
1. Remove the back panel of the sensor with a small screwdriver.
2. Install the battery. The EMS 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.

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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: www.elsys.se
3. Mount the back panel on the surface using the adhesive tape.
4. Attach the cover to the back panel.
Service and maintenance
No serviceable parts inside. If service is needed other than battery replacement,
please contact your distributor.
Desk occupancy sensor
Mount the sensor under the desk or table where the occupancy should be measured.
The sensor has 1m in range and 60° field of view. Ensure that armrests, chairs or other
objects are not at risk of accessing the sensor and thus causing damage.
Temperature/humidity sensor
Place the device in an open space on a wall, under a desk, or on any other flat surface.
Make sure that the sensor is not faced by direct sunlight or placed near air vents or
other places where it may measure values that are not representative for the rest of the
room.

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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: 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 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 EMS sensor to connect with the NFC
antenna. You may need to remove the top cover and battery to get a connection.
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 EMS 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.
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
the 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.

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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: www.elsys.se
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. A 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: suppo[email protected] ǀWeb: 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 settings 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 a 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: suppo[email protected] ǀWeb: www.elsys.se
Sampling mode / Periodic
measurement
The sensor makes periodic
measurements according to the user
configurations.
Schedule Transmission
The sensor transmits the data
according to the user
configurations.
Note: The configured sending interval can
be overridden by network limitations. Due
to this, the spreading factor and sending
interval settings might result in longer
intervals than intended.

12
Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: www.elsys.se
Desk sensor

13
Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: 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
0 to 50 °C
0 to 85 % RH (non-condensing)
Detection range
1 m, 60 ° field of view
Temperature range
0 –40 °C
Temperature resolution
0.1 °C
Temperature accuracy
± 0.2 °C
Humidity range
0 –100 %
Humidity resolution
0.1 % RH
Humidity accuracy
± 2 % RH
Accelerometer detection level
Configurable via NFC and downlink conf.
Dimensions
21.2 x 74.9 x 21.8 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.

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Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden
E-mail: suppo[email protected] ǀWeb: 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. ELSYS 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 UmeåAB. All other brands
and product names referred to herein are trademarks of their respective holders.
Declaration of conformity
Hereby, Elektroniksystem i UmeåAB declares that EMS Desk complies with the
essential requirements and other relevant provisions of Directive 2014/30/EU
and 2014/53/EU.