I know this is a reasonably popular DC power supply so heres a little hack I came up with to increase the display update rate of the voltage and current displays.
I was watching a mikeselectricstuff video and he briefly mentions hacking his power supply (completely different one) to increase the update rate.
I wondered if it was possible to change a clock crystal or component in the Atten PSU so I went digging inside and seeing what I could find. On the display board there are 2 large 7 segment LCD drivers, the Intercil icl7107cplz.
Datasheet link:
http://www.intersil.com/content/dam/Intersil/documents/fn30/fn3082.pdf Looking at the datasheet, the last 3 pins (40, 39, 38) govern the clock rate of the driver. In the Atten power supply they have opted to use the RC option instead of a crystal and have chosen a frequency of around 45KHz with C=100pF. By lowering the capacitance it is possible to increase the frequency. I started out with a 47pF capacitor and it was a huge improvement. But I figure if somethings worth doing, its worth overdoing, so I cranked up the speed to a whopping ~200KHz with a 22pF cap.
I changed both C15 (Volt disp.) and C10 (Current disp.) on the display board which should give over 12 readings/sec. If you change the frequency as much as I did, chances are you'll need to do a calibration with the 2 trimpots on the back with a multimeter.
Overall worth doing if you own this power supply. Using the datasheet you can select a capacitor that suits you. (There are suggestions for 50/60Hz rejection)
Result: