NATUN is a data acquisition system based on A / D cards managed by a microprocessor and connected to each other through a or more RS485 serial lines .
The system can be connected on several lines, where each line can contain up to 32 A / D cards with 8 channels; the system has a maximum of 600 channels .

The NATUN is managed by a central computer equipped with software capable of acquiring and processing all the channels in real time, as well as storing and sending them to an e-mail address or via FTP.
The lines that collect the A / D cards are connected to the computer via USB ports.

The A / D cards are of different types (the choice must be made when ordering):

• for 4 ÷ 20mA current sensors
• for sensors with Volt output
• for PT100 sensors.
  

Each card has its own address that can be changed on site via a dip switch located on the card itself.
The cards are equipped with a total galvanic separation between the communication part and the acquisition part data.
Each card is equipped with 8 independent A / D circuits (one for each channel) to speed up the acquisition time (one per second of all channels simultaneously). For all connected channels, the time required for the update is approximately one minute.

The central computer is also able to manage alarm cards; each card is equipped with eight output relays.