|
guys
i was rumaging through some of
the old projects in the lab and came across a triple reduntant o2 controller i
built for a rebreater project. it is triple reduntant so you can completly lose
a sensor and still be operational.
it consists of an oopic
controller three opamps for the sensors and power amps for the o2 solinoids and
buzzer. it also had a nice 4x20 led screen. the sensors are teledyne battery
type. i am sure that the sensors are dead now but if you seal then they are good
for about three years.
if i remember right the only
thing i had to pay for was the oopic and they are about 60.00$ the rest was
provided as samples.
i will see if i can power it up
this week and get it to work again, i do still have the program for it. the
screen setup as i remember was a bitch with having to convert from hexdex to
posistion.
if anyone is interested in this drop me a
note.
will try to get some pics after i get it running
again
rick m
|