Efento SP. J.
Ul.Krupnicza 14/5
31-123 Kraków
LEDs
NB-IoT sensor is equipped with two LEDs: green and red. If the device is on and works properly
(device is in the Power Saving Mode), both LEDs are turned off all the time. Flashing of the diodes
indicates the current status of the device or the action being performed by it. The LEDs are placed
at the edge of the PCB and are visible through the cuts on the side of the sensor housing. LEDs
flashing indicate:
● Single blink of the red LED once every 15 seconds - problems with registering on the
network
● Double blinking of the red LED - communication problem / no coverage (the has registered
on the network). Retransmission mechanism is started: 1st retransmission after 15 minutes,
2nd after 30 minutes, 3rd after 1 hour, 4th after 2 hours, and then every 3 hours
● Two blinks of the green LED - the device has taken a measurement
● Fast blinking of the green LED - Transmission mode - data is sent over the NB-IoT network
● Red and green LEDs blink five times - Device starts up
● Fast blinking of the red LED - Device clears its internal memory (you can see it on the initial
configuration of the device or when changing the measurement interval)
Getting started
SIM card
Efento Sensors are available in two options: with a plastic SIM card (micro SIM / 3FF) or an embedded
SIM (on request). The SIM card must support NB-IoT.
If your device has an embedded SIM, you do not need to insert a SIM card. Sensor will register on a
network as soon as you power it up.
For security reasons, the micro SIM card holder is placed on the reverse of the sensor PCB. To insert
the SIM card: open the sensor’s enclosure, remove the batteries, unscrew the screws which mount the
PCB, take out the PCB from the enclosure, insert the SIM card, place the PCB back in the enclosure
and put the batteries in.
CAUTION:
Make sure that the sensor is off when inserting the SIM card. Inserting the SIM card
when the device is on may damage the sensor!
Batteries
Sensor comes with
2 x AA, 3.6V batteries, 2100 mAh each (ER14505M). In order to start the device,
insert the batteries in the battery holders as marked on the PCB (+ and -). The device will switch on
once the batteries are placed in the holders. There is no additional power switch.
When replacing the
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