Operating Manual Publish Date: 30.11.2022 Wireless sensor Operating Manual EMS 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.
Operating Manual EMS 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.
Operating Manual EMS Contents Important safety information .......................................................................................................... 2 Description......................................................................................................................................... 4 Main features of EMS ................................................................................................................. 5 Installation...........................................
Operating Manual EMS 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.
Operating Manual EMS Main features of EMS • • • • • • • • • • • • • • • • Compatible with LoRaWAN® specification 1.0.
Operating Manual EMS 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.
Operating Manual EMS 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.
Operating Manual EMS 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.
Operating Manual EMS Sensor behavior NFC Read / Write 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.
Operating Manual EMS Sensor startup 1. 2. 3. 4. 5. When the sensor starts up, it loads configuration from the internal memory and merges it with user configuration. 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.
Operating Manual EMS Sampling mode / Periodic measurement The sensor makes periodic measurements according to the user configurations. Opening activity (Reed switch) When the reed switch changes state from closed to open, the activity is added to a pulse counter that keeps track of the number of opening events. The number of the pulse counter and the current state is added to the data packet.
Operating Manual EMS 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. Water leak detector The EMS has probes mounted through the back panel which are constantly monitored by the sensor. The sensor can be configured to send alarm immediately when water is detected.
Operating Manual EMS Specifications Sensor payload format The device uses the standard ELSYS payload format. Please see the specified document on our webpage. Power supply: Battery type: EU directives compliance: Radio protocol: Radio frequency band: Range: Operating conditions Temperature range Temperature resolution Temperature accuracy Humidity range Humidity resolution Humidity accuracy Accelerometer detection level Water leak detector range Dimensions Battery life 3.
Operating Manual EMS 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 Umeå AB.
Operating Manual EMS Radiofrequency radiation exposure Information: This equipment complies with FCC and Innovation, Science and Economic Development radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Operating Manual EMS 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.
