Problems with the AI893 Module on channel number 8
RTD input on channel 8 of the AI893 is not working properly, currently stuck on the negative rail of -40 deg.
Channels 1-7 in the current set up are set as Thermocouple.
Change the values in the online editor of the AI893 TC in the "cold junction comp CH1-CH7 from " Fixed as parameter" to "Measured Via channel 8", and the RTD should work.
This is a feature that needs to be set up only in AI893 TC. Compensation channel No. : The parameter is used to set how the temperature at the reference junction is determined for channel No.
The parameter can be set to:
- Measured via channel 8, CJT; the reference temperature is taken from a Pt100 RTD connected to the channel 8. If error on channel 8, the parameter value Fix Junction Temperature will be used for cold junction compensation on the module.
- Fixed as parameter; the FJT is used as reference temperature. This was the feature missing on the configuration, in order to get the correct Setup. Please let me know if This is all we need.