apitkin
Registered
I use a Buddy Nexus (the auto setpoint switchover feature is ideal) set to 0.1 ata less than the Prism setpoint. Works very well.
I also use a two-mix nitrox computer (Dive Rite Nitek Plus) set to the correct FO2 for my planned depth & setpoint and 80% for the second mix. At 20 feet I flush the loop with O2, switch the electronics off (the red light gets irritating and it's just wating battery power) and switch the computer over to the 80% mix. I then just watch my secondary to make sure my actual PO2 is higher than my calculated PO2 on the computer and add O2 manually as required. Piece of cake. Works really well for wrecks in the 120-160 feet range that we dive a lot over here.
I love my Prism :10:
Andy
I also use a two-mix nitrox computer (Dive Rite Nitek Plus) set to the correct FO2 for my planned depth & setpoint and 80% for the second mix. At 20 feet I flush the loop with O2, switch the electronics off (the red light gets irritating and it's just wating battery power) and switch the computer over to the 80% mix. I then just watch my secondary to make sure my actual PO2 is higher than my calculated PO2 on the computer and add O2 manually as required. Piece of cake. Works really well for wrecks in the 120-160 feet range that we dive a lot over here.
I love my Prism :10:
Andy