DAQami can't record over 2 channels at the sametime

[shuaiwangwpi]

we are doing research and using DAQami to record the voltages through USB DAQ channel. 

The DAQAMI works well when we record 2 channels (30v each) at the same time. However, the DAQAMI can't record more than 2 channels of data, the third channel just shows a straight line (see attached picture). we diagnose all the channels and they work well individually.

channel we are using: https://microdaq.com/measurement-computing-usb-2408-2ao-daq.php

Could you please give us some suggestions and we really want to record 8 channels simultaneously.

I appreciate your help.

[Fausto]

Hello @shuaiwangwpi  

Acquiring data from all channels should not be an issue. 

Which versions of Windows, InstaCal, and DAQami do you have installed?

Please reply with your DAQami config file, .amicfg. 

Regards,

Fausto

[shuaiwangwpi]

40 minutes ago, Fausto said:

Hello @shuaiwangwpi  

Acquiring data from all channels should not be an issue. 

Which versions of Windows, InstaCal, and DAQami do you have installed?

Please reply with your DAQami config file, .amicfg. 

Regards,

Fausto

Hi i am using Windows 10, DAQami version 4.2.1f0, drivers: version 6.55

When connecting to the third channel, the DAQami can't record and only show a straight line.

IMG_2361.jp2 IMG_2357.jp2 IMG_2358.jp2 IMG_2359.jp2 IMG_2360.jp2

[Fausto]

Hello @shuaiwangwpi.

Your USB-2408 (s/n 18B4633) dates back to circa September 2013 and you are using an older driver.

Are all four selected analog input channels (1, 2, 3, 5) configured as voltage type, 1000 Hz data rate, differential mode, and +/-10 V?

Please close DAQami, download the current release 6.75 of the MCC DAQ software, and install the included applications. 

https://www.mccdaq.com/Software-Downloads

 

Afterwards, launch DAQami and create a new configuration to test your USB-2408.

Is your issue only with the third channel, which happens to be analog input channel 3?

Regards,

Fausto

Edited June 26, 2023 by Fausto
added serial number

[shuaiwangwpi]

On 6/26/2023 at 5:24 PM, Fausto said:

Hello @shuaiwangwpi.

Your USB-2408 (s/n 18B4633) dates back to circa September 2013 and you are using an older driver.

Are all four selected analog input channels (1, 2, 3, 5) configured as voltage type, 1000 Hz data rate, differential mode, and +/-10 V?

Please close DAQami, download the current release 6.75 of the MCC DAQ software, and install the included applications. 

https://www.mccdaq.com/Software-Downloads

 

Afterwards, launch DAQami and create a new configuration to test your USB-2408.

Is your issue only with the third channel, which happens to be analog input channel 3?

Regards,

Fausto

Thank you for the help sir, i reinstall the latest version from your link, it works for the first five hours for five channels, but after five hours, all five channel results turned to zero from around 1.5v please see the picture. could you please help me with this issue? thank you!

IMG_2964.jp2 70959843654__A17C1239-C91E-46BE-8D30-E2E0165C5B4B.jp2 70959854241__1A5D969D-36A4-4DE2-9C09-5D918BF24718.jp2 70959888015__1DA2AFC2-4897-47F1-B375-0B0333B98010.jp2 70959889084__B27CBF04-4C45-411F-A571-48BB14B975AF.jp2