09-18-2008 09:47 AM
I am using a NI 9205 with the NI cDAQ-9172. We are reading the TC signal in through Single Express.
I would like to calculate the Code width using the equation provided in NI's tutorial "Required Signal Conditioning for Thermocouples".
I am unable to find exactly the maximum gain setting for the NI 9205 module. What is it?
09-19-2008 03:50 PM
Hi gardma,
Thanks for posting on the NI Discussion Forums! The NI 9205 has multiple gains it can apply, based on the input range you select. If you search for "gain" in the NI-DAQmx Help, you will find a great entry on this. Here is an excerpt from the NI-DAQmx Help.
If a device has multiple gains, it multiplies an input signal by one of the gains to make the signal take up more of the full device range. This essentially gives the device multiple ranges it can select from. For example, a device with an overall range of -10 V to 10 V and possible gains of 1, 2, and 4 can select between ranges of -10 V to 10 V, -5 V to 5 V, and -2.5 V to 2.5 V. The device selects the best gain available according to the input limits you specify when you create a virtual channel.
You can find the NI-DAQmx Help by going to Start»Programs»National Instruments»NI-DAQ»NI-DAQmx Help. Let me know if you need any clarification on this.