Voltage Range 0-150V / 0-300V / Auto -- means what?

[Peach2000]

This is on the spec sheet of a power supply:
Voltage Range 0-150V / 0-300V / Auto

What are these ranges? And what does "auto" mean?

 

[DRWeig]

More of the specs, please -- hard to say from such limited information.

If possible, post the spec sheet for us to look at.

Good on ya,

Goober Dave

 

[Peach2000]

Here it is:

http://www.chromausa.com/pdf/61600.pdf

 

[jraef]

It just means that you have the ability to select an output power range in gross amounts, that then allows you to adjust more finitely with improved resolution. So your adjustable output can range from 0-150V, or select your adjustment range to be 0-300V, or you can select it to auto-range. i.e. you set an output voltage and it automatically changes to the appropriate range. The reason you would want to change the range is because your accuracy is +-0.2% of Full Scale. So if your scale is 0-300V all the time, then it can be off by 0.2% of 300 or .6V and if your output is 24V, that's a lot (2.5%). But if you move your scale to 0-150%, the error can only be 0.2% of 150, or .3V so you get better (+-1.25%) accuracy on that 24V output.


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[Peach2000]

Excellent. Thank you.

 

[Skogsgurra]

There is also another reason to select 150 V if you do not need more than 150 V and that is that you get twice the output current compared to 300 V.

Gunnar Englund

http://www.gke.org

--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...

 

[oldfieldguy]

Selecting the voltage range also means on some instruments that the readings are visible faster since the machine software doesn't have to do the selection.

old field guy

 

[DRWeig]

Just a comment -- if it performs as specified, that's a nice-looking power source!

Goober Dave