If it attaches to the cpp/cpa, it would be the ATL-1. I have one and use it to process all my b/w film.
Put the "set - run" switch at the bottom of the head to "set".
Input the volume amount in the bottles. A full cpp2 bottle is "1.00" liter.
Put the "set - run" switch to "run".
Switch to your preset program number. Press the bottom arrow to recheck your program, if you like.
Press "start". Display should show temp setting.
Press "start" again.
If you do not have the chemical volume in the bottles inputed, the machine will beep until corrected.
Hope this helps.