Re: [PSUBS-MAILIST] Alarm on oxygen sensor

["Jens Laland" <laland@artematrix.org>]

Alan

Something like this?

http://members.cox.net/bee2/
http://members.cox.net/bee2/ICL7106.htm

Also, use a standard op-amp as a voltage amplifier to raise the said
millivolt DC "signal" (O2 level) up a bit, and finally, a voltage
comparator would give you a signal whenever the O2 level reaches a
preselected low level (similar to what we discussed when playing around
with rudder indicator ideas).

Best regards,
Jens Laland





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