1. Rogrammable function: Providing self-adaptation for PT and ct changing ratio, as well as commuication adrress and baud rate.
2. Accuracy class: 0.5 and 2, frequency 0.2
3. Indicating 4 or 4.5 digit number, symbol excluded
4. Standard input: For elcetric current 1a and 5a; For voltage 100v220v380v; For temperatur rt100; Jkte for thermo-couple
5. Frenquency: 50Hz ± 10%

6. Auxiliary power: AC/DC 110v/220v; Accepted limit --- AC275v, DC390v
7. Power consumption: <3va
8. Dielectric strength: 2kvmin. 2ma
9. Insulation resistance: : ≥ 100mω
10. Mean time between failures: : Above 50000h.