Help with USB-1208LS

[paulade]

Hi,

I recently ordered an MCC DAQ device.

I have installed the needed software and calibrated using instacal.

However, when I run a test using a thermocouple, I get a voltage output of 0.0049V and -0.0049V from one analogue input channel.

When I place the thermocouple in hot water, I get the same voltage outputs which should not be right.

I have used different thermocouples and the result is the same.

I use DAQami and differential channel input. 
Single channels give different voltages but the problem still persists. 

I have attached an excel file.

Thanks

Analog - 21-08-2024 11-43-10.9342.csv

[Fausto]

Hello @paulade.

The USB-1208LS does not support thermocouple temperature measurements, but it does measure voltages.

Test your device with the power output screw terminal #30 (PC +5V).  Disconnect the thermocouple wire and connect a wire from screw terminal #30 (PC +5V) over to screw terminal #1 (CH0 IN HI).  Connect another wire from screw terminal #29 (GND) over to screw terminal #2 (CH0 IN LO).  Configure the analog input channels to differential mode in DAQami and acquire some data.  The results should read approximately +5V.  If it does not, then your device may be faulty.

Regards,

Fausto