Hi,
Looking at replacing Flex IOs with B&R X20 remote IOs on a dragline. Currently have a mix of PT100 and Ni120 installed on site. i have looked through B&R catalogue, have found several RTD modules supporting PT100 but couldn’t find anything to work with Ni120.
How do you integrate Ni120 Sensors to X20 IOs?
Hi,
I had a quick look into a Ni120 data sheet: it looks like that this sensor type is also based on temperature dependent resistance.
A X20 ptc temperature module can also be configured for raw resistance measurement.
So it could be possible to read Ni120 sensors like a resistor and calculating the temperature value based on the resistance value by your own.
But please be aware, that the resistance measurement range is between around 0.05 and 2.5k ohms ( or up to around 5k, depends on the module configuration).
As I’ve seen the data sheet, the Ni120 resistance is around 120 - 330 ohms in the range of 20 - 220 degrees celsius: that means that I can’t say if the accuracy that you need can be reached when using resistance measurement.
Best regards!