Communication time rate
Depending on the protocol and the communication device used, it is possible to choose the shortest data communication time base to the remote server:
- Via FTP: minimum 3 minutes;
- Via MQTT: minimum 1 second.
It is possible to set different data communication rate according to alarm statuses. For example: increase the communication rate when the rain intensity is greater than a certain programmable threshold.
Switched power supply outputs
Outputs are useful to power sensors and external devices activated with configurable logics depending on the sensor requirement or event occurrences.
These outputs become relay outputs using an external module.
Warnings by SMS, E-mail and MQTT
- E-mail: with editable text, scheduling and distribution lists. E-mail attachment contains the file with the data that generated the event. Possibility of replicating message via SMS through applicable Web services;
- SMS: with editable text, scheduling and distribution lists up to 5 users. Active only when the device is working in low-power mode and connected through 3-4 G modem;
- MQTT: Alpha-Log can send data to a MQTT Broker server: instant values, elaborations and alarm notifiations.
Alpha-Log’s firmware can be updated remotely, or locally via USB pen-drive.
Alpha-Log’s configuration is carried out by means of the 3DOM program on PC. The configuration file is sent to the FTP server. Alpha-Log is programmed to import the configuration file directly from this FTP server. The file can also be saved on a pen drive and loaded, via the USB port, into the instrument.
Alpha-Log is equipped with a back-lit LCD display (4×20 chrs) for displaying the main diagnostic data.
Alpha-Log can manage an external independent IP camera using on/off programmable logics related to the measurement and alarms status. In this way, it is possible to increase/decrease the number of images according to the programmed events reducing the system’s power consumption and communication costs.
The IP camera can be connected to the same Router used by Alpha-Log for data communication.
The internal clock (accuracy 30 seconds / month) is up-dated through NTP (Network Time Protocol) whenever Alpha-Log activates an Internet connection. The time zone is defined by the configuration.
Alpha-Log runs at 9÷30 Vdc. The internal regulator allows to charge an external Pb battery, through solar panel or main power supply.
Power consumption and battery duration
Alpha-Log average electrical consumption is 0,03 W during stand-by and measurements; 2,4 W with active communication. Power consumption of the input extension module (ALIEM) is 0.12 W being always active. All this power consumptions do not include the external communication device.
Alpha-Log can be placed inside IP66 enclosure ELF se-ries against shock, water, dust and atmospheric agents. Depending on the ELF’s model, the enclosure can also accommodate power systems, communica-tion devices and batteries.
In the case of sporadic monitoring, Alpha-Log can be housed in a customizable IP66 case.