Elsys EMS Manual de usuario

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

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................................................................................................................. 5 
Installation.......................................................................................................................................... 6 
Door activity sensor.................................................................................................................... 7 
Water leak 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 
Opening activity (Reed switch) ..............................................................................................11 
Schedule Transmission.............................................................................................................12 
Water leak detector...................................................................................................................12 
Specifications ..................................................................................................................................13 
Sensor payload format.............................................................................................................13 
Regulations......................................................................................................................................14 
Legal Notices .............................................................................................................................14 
Declaration of conformity ........................................................................................................14 
 

Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden

E-mail: suppo[email protected] ǀWeb: www.elsys.se

Description

EMS is a subtle indoor sensor with multiple purposes for LoRaWAN® wireless

network. It measures temperature and humidity but can also be used as water

leak detector, door activity sensor or acceleration detector. EMS is designed to

be mounted on door frames, under desks, under dishwashers or in any other

limited surface area. EMS 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.

Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden

E-mail: suppo[email protected] ǀWeb: www.elsys.se

Main features of EMS

•Compatible with LoRaWAN® specification 1.0.3

•Measures ambient temperature

•Measures ambient humidity

•Detects acceleration

•Detects water leak

•Detects opening activity (Reed Switch)

•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

Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden

E-mail: suppo[email protected] ǀWeb: www.elsys.se

Installation

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.

3. Mount the back panel on the surface using the adhesive tape.

4. Attach the cover to the back panel.

Elektroniksystem i Umeå AB Industrivägen 12, 90130 Umeå, Sweden

E-mail: suppo[email protected] ǀWeb: www.elsys.se

Door activity sensor

Make sure that the magnet part is mounted on the “door”(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 10mm. 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 image).

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.

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 is not representative for the rest of the

room.

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 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

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.

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. 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.

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 successful connection to a network, the

sensor sends a settings packet and enters

sampling mode.

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