ultravinnie
Guest
I designed a nitrox analyser.
This is not another run-off-the mill voltmeter thingie.
My analyser hooks up directly to your LP inflator hose. has a 2x20 character backlit LCd display, a CPU inside. It is self calibrating and measures anaything between 0 and 100%. I uses a sensor with a 4 to 5 year lifespan.
The readout shows yout % oxygen and your MOD for a preset PPO. you can switch between feet and meters for the Max depth readout.
you can change your PPO. there is a backlight for use on the boat while preparing for nightdive for instance. the usint automatically siwtches of after a user defined time.
It is the size of a pack of sigarette's runs on 2 AAA batteries for about 3 years.
a built in battery gauge shows you battery status upon poweron. It is mounted in a sturdy case overmolded with a rubber boot.
To calibrate the unit you need a tank of air and a tank with 100% oxygen. just enter the CAL menu and follow the instructions. this needs to be done about once a year to compensate for sensor aging.
the pressure reducer / flow diverter is easily made. just a piece of delrin , a couple of drills and a couple of allen set screws.
if anyone is interested i can send pictures. I built 3 ( one for me and 2 for my friends ) i still have a number of bare boards laying around and can make more.
This is not another run-off-the mill voltmeter thingie.
My analyser hooks up directly to your LP inflator hose. has a 2x20 character backlit LCd display, a CPU inside. It is self calibrating and measures anaything between 0 and 100%. I uses a sensor with a 4 to 5 year lifespan.
The readout shows yout % oxygen and your MOD for a preset PPO. you can switch between feet and meters for the Max depth readout.
you can change your PPO. there is a backlight for use on the boat while preparing for nightdive for instance. the usint automatically siwtches of after a user defined time.
It is the size of a pack of sigarette's runs on 2 AAA batteries for about 3 years.
a built in battery gauge shows you battery status upon poweron. It is mounted in a sturdy case overmolded with a rubber boot.
To calibrate the unit you need a tank of air and a tank with 100% oxygen. just enter the CAL menu and follow the instructions. this needs to be done about once a year to compensate for sensor aging.
the pressure reducer / flow diverter is easily made. just a piece of delrin , a couple of drills and a couple of allen set screws.
if anyone is interested i can send pictures. I built 3 ( one for me and 2 for my friends ) i still have a number of bare boards laying around and can make more.
