RO/DI automation with GHL

CEReefer

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@Lasse I really loved the programming thread with the multiple solenoids this week, and gave me some thoughts.

I am trying to automate my RO/DI station, in a much easier way (simple on/off based on float switches). But I want to integrate an automatic TDS monitoring system. Using this. Now this monitor, sends signal in 4-20 mA format, applying a 500 ohms resistor, you convert that signal into a 2 (yes 2!)-10v.

Is there a way with an ADIN card to make sure that if the Profilux detects a voltage above 2 it gives an alarm and prevents the solenoids involved with making RO/DI from opening?
 

Lasse

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Yes I think it is possible. The Add in chard have two 1-10 V channels. When you install this card - this two sensors show up

1608409542279.png


Here you can decide a nominal value (when your TDS increase or decrease a certain value). You can also knit it to a PL or switch channel

1608409722503.png


1608409804966.png


Sincerely Lasse
 

kw1816

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How did you get on with this ? I’m interested in doing something similar, would be good to know if you got it working :)
 

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