Read digital square waveforms through analog input

[kmarcella]

Hi,

I have an EagleDrive MS Micropump (http://www.micropumpsonline.com/micropump-dc-drives-i-drive-eagledrive-mse.htm#.VHznDYvF8Z0) from Burt Process Equipment. The tachometer output is 0-5V square wave pulse that occurs twice per pump drive revolution. I want to read the tachometer but only have an analog input DAQ (NI 9208). Is this possible in anway? If not, what would you suggest we get to read the rpm from the tachometer?

Thanks,

[crossrulz]

The 9208 is meant to measure current, not voltage.  How fast will your pulses be coming in?  What is the C Series module going into (cDAQ?, cRIO?)?

If you just want an anlalog input, then I would probably just go with something like a 9201.