Is there a way I can reasonably calibrate the power supply at home?

 

Welcome to AAC.

Would you care to share some more info on the subject ?
Like, what type of PSU. It's model number or any documentation if you have any.
Some pictures would be nice.

 

model number 382202. I have no documentation and what I can find on the internet doesn't include calibration.

 

Open the unit and you might find some calibration trimpots.

 

model number 382202. I have no documentation and what I can find on the internet doesn't include calibration.

Is it still under warranty?

 

I second MrChips

 

Hello,

When you still have warrenty, try to get it fixed by extech.
When you have no warrenty, nothing is lost and open it.

Bertus

 

No warranty, it was second hand. I guess i can try and open it.