Hey all,

I am currently doing a project of which the setup will consist of two electrochemical cells. On cell 1 a constant DC voltage needs to be applied and on cell 2 the emf / DC voltage across the cell needs to be measured. For a schematic, see the picture that I attached. The voltages will range from 0 to about 1.5 V. The currents will be relatively low; way below 1 A.

Some requirements I have are:
- A programmable applied DC voltage for cell 1
- Record the measured DC voltage over time for cell 2 (up to 10's of hours, sampling every couple minutes)

So far I have decided that I will use a DC power supply for cell 1 and a digital multimeter (DMM) for cell 2. Could anyone give me options/recommendations in different price categories for the DC power supply and DMM that would be useful in this case?

Furthermore, would remote sense be needed for the DC supply?

Thanks in advance,

Koen

 

REmote sense would certainly help assure that the voltage drop in the leads did not have an effect, and so it is a good choice. For the DVM, if you need automatic sampling every 2 minutes then the choices are few, but the suppliers are good. FLUKE is one supplier of such a device, I am sure that there are others.