Apogee sensor.

Basic / Standard Reef Angel hardware
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johniii
Posts: 86
Joined: Sun Mar 03, 2013 8:37 am

Apogee sensor.

Post by johniii »

Is it possible for reef angel to read/record a mV DC signal? From an external sensor such as an apogee-sq120
rimai
Posts: 12857
Joined: Fri Mar 18, 2011 6:47 pm

Re: Apogee sensor.

Post by rimai »

Can you really just measure mV from the sensor?
Roberto.
phrusher
Posts: 65
Joined: Fri May 25, 2012 12:22 am

Re: Apogee sensor.

Post by phrusher »

Not familiar with the apogee but I recently completed a DIY PAR reader and the output from that was mV. But why connect it to the reef angel?
rimai
Posts: 12857
Joined: Fri Mar 18, 2011 6:47 pm

Re: Apogee sensor.

Post by rimai »

Which sensor did you use?
Roberto.
phrusher
Posts: 65
Joined: Fri May 25, 2012 12:22 am

Re: Apogee sensor.

Post by phrusher »

This. It's 400 to 1100 but as I understand it everything over about 700 is filtered out when submerging it in the tank. I haven't calibrated it yet against another meter but it was interesting to see how much lower the light got just by lowering the sensor a few centimeters (or inches for you guys :-P)
johniii
Posts: 86
Joined: Sun Mar 03, 2013 8:37 am

Re: Apogee sensor.

Post by johniii »

rimai wrote:Can you really just measure mV from the sensor?
Yes mV x 5 = par
Per apogees instructions

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johniii
Posts: 86
Joined: Sun Mar 03, 2013 8:37 am

Re: Apogee sensor.

Post by johniii »

phrusher wrote:Not familiar with the apogee but I recently completed a DIY PAR reader and the output from that was mV. But why connect it to the reef angel?
Just because I could.

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rimai
Posts: 12857
Joined: Fri Mar 18, 2011 6:47 pm

Re: Apogee sensor.

Post by rimai »

Try plugging into the probe and see if it goes out of scale...
A ph meter is nothing more than a mV meter.
Same for the ORP, but the scale of the ORP is much higher.
Roberto.
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