MeSensAmpl  Buffer Amplifier for O2 Sensors

My Uwatec OXY2 was very sensitive.
So I decided to buffer one sensor and simulate the 4 OXY2 demanded cells.....

MeSensAmpl00.jpg
Circuit		 MeSensAmpl01.jpg
Board
MeSensAmpl02.jpg
Bottom		 MeSensAmpl03.jpg
Top

Input 1x O2 sensor with 10K
Output 4x O2 sensors  low resistance
Gain 0 .. 2
Battery 2x 1.5V AAA
    Supply -1.5 ..  1.5 Volt
    Currentca 0.08 ... 0.12 mA
    Operation timeMore than 10000h = expected 1 year

Having the 2. sensor place free,
I gain "redundancy" by using independent sensor for detachable connection with an external O2 meter

MeSensAmpl04.jpg
OXY2		 MeSensAmpl07.jpg
MeRay O2
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MeOxy2a		 MeSensAmpl06.jpg
MeOxy2b		 MeSensAmpl08.jpg
MeOxy

That's a nice "holiday" O2 unit,
fitting excellent to my "holiday-rebreather" MeRay