On Thu, 16 Mar 2006 05:28:28 GMT, Ignoramus26498
wrote:

On Wed, 15 Mar 2006 20:41:57 -0600, Don Foreman wrote:
Does anyone own a similar power supply? I could not properly switch it
to constant current mode.

i

There is no switch.

Set the voltage to the maximum that is acceptable for your
application. Turn the current knob all the way CCW. Then turn off
the supply and connect the load. When you turn the supply back on,
advance the current knob until current reaches the desired level.

Thanks Don. Worked great, with a resistor. I set current with the
resistor in the circuit, then shorted outputs, and the current did not
change but voltage dropped to almost zero.

So, I think, this supply is quite suitable for tasks such as plating
small objects.

I appreciate your advice, it helped.

i

Da nada.

Yes, that supply should work nicely for plating and anodizing small
objects. Matter of fact, Caswell Plating sells Mastech supplies for
that use. The integral meters are a nice feature. I don't know how
well the Mastech supplies regulate current, but plating and anodizing
aren't that fussy.

Constant current is definitely the way to go because current is the
relevant parameter in these processes. Figure your surface area, dial
in the appropriate current, look at your watch and go do something
else while things progress.