Flow computer

The flow computer’s central processing unit (CPU) is an NPX® Kinetis® K61 series CPU with an ARM® Cortex® M4 processor.

8 MB stores the current states of all variables and historical files.

128 MB SDRAM.

128 MB Flash stores the firmware image and configuration files.
Type: Real-time clock.

Accuracy: 0°C to −40°C: 60 seconds/year
−40°C to 80°C: 110 seconds/year
Watchdog timer: 1175 milliseconds
Battery voltage monitor, external voltage monitor, SRAM battery status
4-wire serial communications.
Selectable software for RS-232, RS-422, or RS-485 operation.