Alpha-Log Alpha-Log Alpha-Log
Alpha-Log Alpha-Log Alpha-Log

Alpha-Log Data Logger

The most powerful data logger of the LSI Lastem family

Alpha-Log is the latest addition to the LSI Lastem data logger family. It contains the most efficient technical solutions assimilated in more than 40 years of experience by LSI Lastem with its data acquisition systems.

Alpha-Log was created with the clear need to be an independent acquisition system, but also integrable in more complex systems.

Environment | Data Logger (Environment) | LSI Lastem

Highlights

  • Linux operating system for data processing and communications. Open architecture based on integrated Linux PC;
  • Integrated web server for real-time data, diagnostic information and data download to Excel file via Internet browser;
  • Large number of analog, digital and serial inputs. Up to 200 channels managed between measured, derived and calculated quantities;
  • Large multi-level data memory. Removable external memory;
  • 3G/4G communication, wireless router, Ethernet, WIFI, satellite; Redundant dual system with automatic switch from one mode to another;
  • RS232, RS485, SDI-12 ports for connection with serial sensors;
  • Data communication protocols: Modbus RTU/TCP data, FTP (client/server), SFTP, SMTP, SAP, MQTT, HTTP, R-MAP (Participatory Environmental Monitoring Network);
  • Other supported protocols: SSH, NTP;
  • Low power consumption with energy saving modes management;
  • Programmable logics for messages notifications or activating external devices;
  • Alarms: use of SMS, email and local digital outputs;
  • Advanced processing for data statistical analysis: total values, rain intensity, moving and current statistical values. Wind elaborations;
  • Remote system configuration also via modem, without the need of fixed IP SIM Card with or VPN;
  • Remote firmware update;
  • Internal temperature sensor and integrated atmospheric pressure.

Input fot analog and digital sensors – Main module

  • N.2 digital inputs for two independent rain gauges, or one rain gauge with double reed relay / N.2 frequency inputs for optoelectronic anemometers (selectable);
  • N.1 Pt100 input for Temperature sensor;
  • N.1 0÷2 V input;
  • Integrated Absolute Pressure sensor;
  • Integrated internal Temperature sensor.

Input for analog and digital sensors – Inputs extension module ALIEM

  • N. 8 analog differential inputs (N.16 single-ended);
  • N.4 digital inputs (Pulse/Frequency).

Input for Serial sensors – Main module

  • N.1 RS485 opto-insulated (N.32 Modbus sensors);
  • N.1 SDI-12;
  • N.1 UART input for Storm Distance sensor (DQA601.3) or DMA672.1-672.4 thermo-hygrometer;

Connection on RS485 bus to one or more external sensors or Input extension modules (MDMMA110) by Modbus RTU protocol. Up to three RS485 devices, can be connected to a single bus console (EDTUA1130).