Elsys EMS Series User manual
Operating Manual EMS series
Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
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 Waste from Electrical and
Electronic Equipment (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 Directive
2012/19/EU 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.
Operating Manual EMS series
Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
Contents
1. Description ................................................................................................................1
1.1 Dimensions (mm) ..........................................................................................1
1.2 Label..................................................................................................................1
1.3 Main features of the EMS series..................................................................2
2. Mounting guidelines ................................................................................................3
2.1 Door activity sensor........................................................................................3
2.2 Water leak sensor ...........................................................................................4
2.3 Temperature/humidity sensor.......................................................................4
2.4 Desk occupancy sensor.................................................................................4
3. Installation .................................................................................................................5
4. Service and maintenance........................................................................................5
5. Sensor configuration................................................................................................6
5.1 NFC configuration...........................................................................................6
5.2 Over the air configuration..............................................................................6
5.3 Application parameters ..................................................................................6
6. Sensor behavior........................................................................................................7
6.1 Sensor startup .................................................................................................7
6.2 Sampling mode / Periodic measurement....................................................7
6.3 Scheduled transmission.................................................................................7
6.4 LED indication .................................................................................................8
7. Internal sensors........................................................................................................9
EMS series internal sensors........................................................................................9
7.1 Temperature..................................................................................................10
Operating Manual EMS series
Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
7.2 Humidity.........................................................................................................10
7.3 Accelerometer...............................................................................................11
7.4 Door activity (Reed switch) .......................................................................11
7.5 Water leak detection....................................................................................11
7.6 Occupancy.....................................................................................................11
8. Device specifications ............................................................................................12
9. Sensor payload format.........................................................................................13
10. Regulations........................................................................................................14
10.1 Legal Notices................................................................................................14
10.2 Federal Communication Commission Interference Statement.............14
10.3 Declaration of conformity ...........................................................................15
11. Revision history.................................................................................................16
Operating Manual EMS series
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
1. Description
The EMS series consists of subtle indoor sensors with different features and
LoRaWAN® wireless connectivity. The sensor measures, depending on model,
temperature, humidity, acceleration, door activity, occupancy and can also be
used as a water leak detector. The EMS series sensors are designed to be
mounted on door frames, under desks, under dishwashers or in any other limited
surface area. The sensors are equipped with NFC (Near Field Communication)
for easy configuration with an NFC-enabled smartphone.
1.1 Dimensions (mm)
1.2 Label
At the back of your device there is a label with an Aztec barcode containing
DevEUI and sensor type.
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
1.3 Main features of the EMS series
•Compatible with LoRaWAN® specification 1.0.3 and 1.0.4, depending
on firmware version
•Measures ambient temperature
•Measures ambient humidity
•Detects acceleration
•Detects water leak
•Detects opening activity (reed switch)
•Monitors desk occupancy
•Easy installation
•Easy configuration
•Install on flat surfaces*
•Battery-powered
•Long-range communication
•Configurable over NFC
•Configurable over the air
•Ten years of battery life**
•Supported channel plans: EU863-870, IN865, US902-928, AU915-
928, AS923, KR920-923, HK923
•CE Approved and RoHS compliant
*Do not mount on any metal surfaces
**Depending on settings and environmental factors
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
2. Mounting guidelines
Below follows mounting guidelines for door activity, water leak,
temperature/humidity, and desk occupancy sensors.
2.1 Door activity sensor
Make sure that the magnet part is mounted on the door blade (the part that is
going to open) and the sensor part is mounted on the frame. For double doors,
put one part on each door. The distance between magnet and sensor should, if
possible, not exceed 10 mm. Make sure that the magnet and reed switch are
mounted next to each other. Detection range will be affected by the materials of
the door and frame, different materials result in different ranges. The reed switch
is on the end of the sensor
without
the stripe. The magnet needs to face this
side of the sensor (see images).
Reed switch
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
2.2 Water leak sensor
Make sure that the back panel is mounted on the surface where the water may
leak. The sensor element that detects the leak is placed on the back panel. For
example, if EMS is going to monitor water leak from a dishwasher, place the
back panel onto the floor under the machine.
2.3 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 in direct sunlight, close to a radiator or
placed near air vents where it may measure values that is not representative for
the rest of the room.
2.4 Desk occupancy sensor
The device should be mounted underneath the desk, 10-20 centimeters from
the front edge of the desk. Make sure that the hole is pointing towards the
person sitting or standing by the desk. The sensor can detect occupancy up to
50 centimeters with a field of view of 60 degrees both in the horizontal and
vertical direction. After mounting the sensor at its intended location, the sensor
will need time to calibrate to the new environment (to set the correct baseline
for occupancy detection). Leave the sensor to calibrate over the night and make
sure that the sensor is not close to or looking at a hot object (like a radiator) or
placed near air vents as it may disturb the occupancy detection.
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
3. Installation
1. Remove the back panel of the sensor with a small screwdriver. Take care not
to damage any internal components.
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.
3. Mount the back panel on the surface using the adhesive tape.
4. Attach the cover to the back panel.
4. Service and maintenance
No serviceable parts inside. If service is needed other than battery replacement,
please contact your distributor.
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
5. 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.
5.1 NFC configuration
1. Download ELSYS “Sensor Settings”application from Google Play or App
Store 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. Keep the two devices close to each other and don’t move them to
get as good connectivity as possible.
You may need to remove the top cover
and battery to get connection.
4. Current settings will be displayed in the application.
5. Use the application to change any settings if needed.
6. Tap the device on top of the EMS to send the new settings to the sensor.
Make sure that the application confirms your new settings.
7. Wait for the sensor to reboot (1-5 sec), indicated by the LED flashing.
Sensor settings have been updated. Always validate your settings by reading
the NFC data after the sensor has restarted.
See the section “Help”in the application for more information.
5.2 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.
5.3 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 Tvistevägen 48C, 907 36 Umeå, Sweden
6. Sensor behavior
6.1 Sensor startup
1. When the sensor starts up it loads any configuration parameters stored in the
NFC chip. The sensor will then write all configuration parameters back to the
NFC chip.
2. When the configuration is done the sensor tries to join the network if OTAA
(Over the Air Activation) is enabled. Make sure that the sensor credentials
(DevEUI, AppKey, JoinEUI) match the keys added in the server for activation of
the device. The join procedure starts at spreading factor 7 with a join request
every ~15 seconds. The sensor will gradually increase the time as well as the
Spreading Factor between the following join requests until the join is successful.
Every join request is indicated by an orange LED blink.
3. After successful connection to a network, the sensor sends an uplink
containing the sensor settings and enters sampling mode.
6.2 Sampling mode / Periodic measurement
The sensor makes periodic measurements according to the user configuration.
6.3 Scheduled transmission
The sensor transmits the data according to the user configuration. However, 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.
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
6.4 LED indication
The LED indicates different actions when the sensor is active.
LED Indicator
Action
Red/green sequence
Sensor is starting up
Short orange blink
LoRa join request transmission
Short green blink
LoRa uplink transmission
Short red blink
Sensor failed to send an uplink
Common cause is duty cycle limits
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
7. Internal sensors
The populated internal sensors in the EMS series differ between models
according to the list below.
EMS series internal sensors
Sensors
EMS
EMS Lite
EMS Door
EMS Desk
Temperature
Humidity
Acceleration
Door activity
Water leak
Occupancy
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
7.3 Accelerometer
The accelerometer sensor reports values of X, Y and Z direction, depending on
the sensor orientation. In the picture the Z reference value is around 64 and the
value for X, Y is 0.
Range: ± 2.0 g
Sensitivity: 16 mg/digit
Data rate: 10 Hz
7.4 Door activity (Reed switch)
The reed switch sensor is used to monitor door activity. When the magnet is
near EMS and EMS Door in the area where the reed switch is located the reed
switch closes and gives a value of 1. When the magnet is away from the reed
switch the reed switch opens and gives a value of 0.
7.5 Water leak detection
The EMS and EMS Lite have probes mounted through the back panel which are
constantly monitored by the sensor. The sensor can be configured to send an
alarm immediately when water is detected. Detection is then sent periodically.
Reported value is 0 for dry conditions and 1 when water is detected.
7.6 Occupancy
The occupancy IR sensor measures differences in temperature to detect
occupancy. The sensor will report value 0, 1 or 2. Value 0 meaning that no
occupancy is detected. Value 1 is reported during pending (entering or leaving)
and value 2 is reported when occupancy is detected.
Detection range: 50 cm
Field of view: 60° (horizontal/ vertical)
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
8. Device specifications
Mechanical specifications
Dimensions
21.2 x 74.9 x 20.8 mm
Weight
10 g excluding battery / 30 g including
battery
Enclosure
Plastic, PC / ABS
IP rating
IP20
Mounting
Adhesive tape
Operating conditions
Usage environment
Indoor
Temperature
0 to 50 °C
Humidity
0 to 85 % RH (non-condensing)
Power supply
Operating voltage
3.6V DC
Battery type
AA 14505 (Li-SOCI2)
Battery life
Up to 10 years
(Depending on settings
and environmental factors).
Radio / wireless
Wireless technology
LoRaWAN®1.0.4, Regional Parameters
RP2 - 1.0.3
Wireless security
LoRaWAN®End-to-End encryption (AES-
CTR), Data Integrity Protection (AES-
CMAC)
LoRaWAN®Device Type
Class A End-device
Supported LoRaWAN®features
OTAA, ABP, ADR, Adaptive Channel
Setup
Supported LoRaWAN®regions
EU868, IN865, US915, AU915, AS923,
KR923, HK923
Link budget
137dB (SF7) to 151 dB (SF12)
RF Transmit Power
Max 14 dBm EIRP
EU directives compliance
RED 2014/53/EU, RoHS 2011/65/EU
WEEE 2012/19/EU
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
10.Regulations
10.1 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.
10.2 Federal Communication Commission Interference Statement
NOTICE:
This device complies with Part 15 of the FCC Rules and with Industry Canada
licence-exempt RSS standard(s).
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.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux
appareils radio exempts de licence. L'exploitation est autorisée aux deux
conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'appareil doit accepter tout brouillage radioélectrique subi, même si
le brouillage est susceptible d'en compromettre le fonctionnement.
FCC ID: 2ANX3-EMS01 IC ID: 26904-EMS01
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Elektroniksystem i Umeå AB Tvistevägen 48C, 907 36 Umeå, Sweden
NOTICE:
Changes or modifications made to this equipment not expressly approved by
ElektronikSystem i Umeå AB may void the FCC authorization to operate this
equipment.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant 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 or more 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.
10.3 Declaration of conformity
Hereby, ElektronikSystem i UmeåAB declares that the radio equipment type
Radio communication devices for low-speed data R&TTE Class 1 is in
compliance with Directive 2014/53/EU, Directive 2011/65/EU and Directive
2012/19/EU.
The full text of the EU declaration of conformity is available at:
https://www.elsys.se/link/eu-doc
This manual suits for next models
3
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