Having read through the website and forums the Pico stuff seems just right for measuring oxygen and temperatures (also pH ORP, salinity) and state of pumps / float switches etc. in our fish farm systems. Oxygen and temperature are the most common. Just a couple of questions before buying.
1. The Oxygen probes we use typically give about 70 mv at 100 % oxygen (although each probe is slightly different to to age, state of membrane & electrolyte etc). Which is the best software to use and will this enable us to calibrate the probes to show 100% in air?
2. We need to set high and low alarms for each probe - again is there a ready made program that can do this.
3. Finally (for now), in some situation we will need to control as well in response to readings. For example - the low oxygen alarm may be set at 70% and the high at 110%, but at 80% we don't want an alarm, but need to open a solenoid valve - and close it again at 90%. So this is a control specific to a channel (same for using temperature readings to control heating / cooling), but also there will be the situation where we need to do something general, like turn on an oxygen generator when a certain number of readings are below a certain level. Does this need custom written software?
Look forward to your advice,
Llyn Aqua Ltd