SC-2345 Increase in Voltage

[tedstertm]

I am using an SC-2345 to increase create an excitation voltage and then read signals from a pressure transducer. When I was looking at a readout of the transducer's output I had noticed that it was increasing over time. After a few minutes of trying to figure out what was wrong with it I hooked up a multimeter to the SC's output and discovered that the block is putting out more voltage at a rate of about .3mV/minute it is currently at 12.5V and looks like it's slowing but doesn't look like it's going to stop. Anybody know why this is happening or how to fix it?

[Wayne.C]

Suggest you leave it powered up for awhile and check drift over time.  It may be that once it has reached a steady temp, it will settle down.  Does it do this with no load attached?

[Henrik_Volkers]

Yep, power up and give the devices time to settle in temperature. When it comes to calibration we give 2 hours. Well, power up Monday morning and let it run ....

It's a good idea to record the warm up and even longer to get a feeling of stability for your setup.

The reason for this are mostly the temperature drifts of the internal time and voltage references.