Cernox HT RTD

[Prabhakant_Patil]

I am using Cernox HT RTD. The sensors are potentially at a very high voltage, approx 30kV isolation.

Could you please suggest an appropriate signal conditioning model with the requisite isolation level.

[Henrik_Volkers]

30kV + security margin is tricky.... usual isolation boards I know of are limited to 5kV

Would it be possible to use  a battery powered RTD reading device with rs232 output and use a rs232 optical fiber wire cable?