MAKE your own controller

[mark]

Static: I'm using a PLC like device to drive SSRelays like here, simple and clean to switch heaters.

Kwirky: Queried American Marine about the output of their probe

e-mail reply AMI
"After proper calibration the probe will generate 59 mV per each unit of positive pH and the opposite will be negative mV. Example pH 7.0= 0 mV; a ph of 8.0=59mV a pH of 6.5= -30mV Good Luck...Lou Dell/AMI"

[kwirky]

Originally Posted by mark

Static: I'm using a PLC like device to drive SSRelays like here, simple and clean to switch heaters.

Kwirky: Queried American Marine about the output of their probe

e-mail reply AMI
"After proper calibration the probe will generate 59 mV per each unit of positive pH and the opposite will be negative mV. Example pH 7.0= 0 mV; a ph of 8.0=59mV a pH of 6.5= -30mV Good Luck...Lou Dell/AMI"

sweet thanks for getting me the info

I've considered simpler PLC's but this board gives the ability to program in C, instead of assembly. I would personally have more applications than just my own tank, and would buy one mainly for experiments and class work.