Model FI 593 Input (Factory settable) 0-20 mA DC / 0 - 10V DC (any One) Display 16 Character X 2 Line LCD Display Display Modes Flow Rate (FR) & Total Flow (TF) Display Range 0 - 9999(4 Digits) for FR , 0 - 99999999(8 Digits) for TF Voltage Drop 1 V Maximum (Applicable only for current input models) Input Impedance 18K Ohms (Applicable only for voltage input models) Resolution 1 / 0.1 / 0.01 (any One User Selectable) Accuracy at 25 Deg C ± 0.1% of FS Relay Output (optional) 2 relay (5A rated) with individual relay assignment setting Operating Environment 0 to 60 Deg C / 5 to 95 % RH Non Condensing Conversion Modes Linear, Square Root (User Selectable) Units m³ , Liter, Gallons(User Selectable) Flow Rate Time Base Seconds, Minutes, Hours(User Selectable) Sensor Supply 24 V DC / 100mA Max. Power Supply 90 to 270 V AC Frequency 50/60 Hz