02-17-2015 08:31 AM
I'm using a NI 9208 16-channel anaolg input module for 20 mA measurement in a cDAQ-chassis.
It is connected to a 24 V DC power supply. So far, a couple of passive sensors are connected and it works very well.
Now I want to measure data from an active sensor as well. This sensor is connected to the same power supply as well, because it's a part of a motor-device.
Is it possible to connect passive and active sensors somehow at the same time to the same input module?
02-18-2015 10:14 AM
since you are using the NI 9208, I guess you want to measure current from the sensor.
When looking at the following link, the measurement type is the important thing, not if the sensor is active or passive:
What Determines if a Transducer Is Active or Passive? - National Instruments
You only have to keep the specifications of the module in mind, so you measure in its input range and the sensitivity meets your needs.
08-01-2017 10:30 AM
Did you ever find a solution to this Stefan? I have the same problem.
08-01-2017 10:44 AM
See page 13 and page 14 in the manual 🙂
and yes, you can use both at the same time, the total current shoudn't exeed 2A , so it's wise to read the fantastic manual from your transducers too 😄