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pH number adjustment
Posted: Mon Jun 04, 2012 11:27 am
by DrewPalmer04
My probe reads low. I've recalibrated many times and still get 7.53 (+) or (-) a few...Any code adjustments just to make it read the true value 8.3? I'd just like to get it closer to my actual pH readings from my test kits.
Re: pH number adjustment
Posted: Mon Jun 04, 2012 11:37 am
by rimai
What were the numbers you were getting while calibrating?
Re: pH number adjustment
Posted: Mon Jun 04, 2012 11:51 am
by DrewPalmer04
548
787
I followed the steps for calibration 3 times...new solution too
Re: pH number adjustment
Posted: Mon Jun 04, 2012 12:30 pm
by rimai
The lower value seems very good, but the higher value seems a bit too low.
Did you rinse the probe with RODI before you put into 10?
What happens when you place the probe into 10 solution after it is calibrated? Does it read 10?
Re: pH number adjustment
Posted: Mon Jun 04, 2012 1:25 pm
by DrewPalmer04
it'll read 7 in the 7 solution and like 9 in the 10 solution...so that's what's weird. Will increasing the higher value in the client suite help me do what I want? I've tested my tank water and it's 8.3
Re: pH number adjustment
Posted: Mon Jun 04, 2012 2:37 pm
by rimai
yes.
It should be around 830.
Re: pH number adjustment
Posted: Mon Jun 04, 2012 2:40 pm
by DrewPalmer04
Thank you...I'll try that.
Now another question
lol sorry.
What's the code for the "soft start" for relays 5 & 6?
I'm using this now.
Code: Select all
void setup()
{
randomSeed(analogRead(0));
ReefAngel.Init(); //Initialize controller
ReefAngel.Timer[1].SetInterval(random(15,35));
ReefAngel.Timer[1].Start();
ReefAngel.Relay.On(Port5);
}
void loop()
{
if ( ReefAngel.Timer[1].IsTriggered() )
{
ReefAngel.Timer[1].SetInterval(random(15,35));
ReefAngel.Timer[1].Start();
ReefAngel.Relay.Toggle(Port5);
ReefAngel.Relay.Toggle(Port6);
}
ReefAngel.ShowInterface();
}
Re: pH number adjustment
Posted: Mon Jun 04, 2012 2:48 pm
by rimai
Are you talking about alternating wavemakers on opposite cycle?
If so, this works.
Re: pH number adjustment
Posted: Mon Jun 04, 2012 2:51 pm
by DrewPalmer04
Yes, but I'm using hydor power heads...I've read online that relay 5&6 can soft start??? That's needed to do wavemaker on those pumps..other wise they just mess up!
Re: pH number adjustment
Posted: Mon Jun 04, 2012 2:53 pm
by rimai
Yes, use 5 and 6 for wavemakers.
Re: pH number adjustment
Posted: Mon Jun 04, 2012 3:08 pm
by DrewPalmer04
I was just using them and based on the code above. They we not soft starting. It was just clicking them on 100% when the relay switched.
Re: pH number adjustment
Posted: Mon Jun 04, 2012 3:10 pm
by rimai
What do you mean with soft start?
Standard koralias can't vary speed. The controllable koralias need their own driver and can't be interfaced with RA.
Re: pH number adjustment
Posted: Mon Jun 04, 2012 3:20 pm
by DrewPalmer04
There is a type of wavemaker power strip out there that allows it to start say at 30% power then up to 100% based off 110 vac. Instead of just 0 then 100%. So the pumps "soft start" slowly then ramp to 100% instead of the power head just getting 100% power and grinding/breaking the power head teeth
Re: pH number adjustment
Posted: Mon Jun 04, 2012 3:25 pm
by rimai
I'm sorry, but the RA doesn't do that.
People have been using standard koralias with RA for a long time now.
I think the old generation koralias had problems, but not the newer ones. They used to spin backwards.
Re: pH number adjustment
Posted: Mon Jun 04, 2012 3:27 pm
by DrewPalmer04
Oh ok! So the newer ones people are not having problems with just going from 0-100% in a split second?
Re: pH number adjustment
Posted: Mon Jun 04, 2012 3:29 pm
by DrewPalmer04
I am a little confused though. People online reported soft start on relay 5&6? That's special about those two?
Re: pH number adjustment
Posted: Mon Jun 04, 2012 3:38 pm
by rimai
They have dampening components.
This is to avoid what is called inductive spike.
Motors tend to generate nasty spike on the power line when they turn on/off and doing so it can cause RA to pick up that noise and interfere with its operation.
Re: pH number adjustment
Posted: Mon Jun 04, 2012 3:47 pm
by DrewPalmer04
makes sense...thanks again roberto!
Re: pH number adjustment
Posted: Tue Jun 05, 2012 12:57 pm
by DrewPalmer04
Roberto,
Any recommendations for power heads that are ok with this 0 to 100% quick start relay set up of the Reef Angel?
Re: pH number adjustment
Posted: Tue Jun 05, 2012 1:43 pm
by rimai
Like I said, people have been using koralias for a long time.
Re: pH number adjustment
Posted: Mon Jul 02, 2012 3:50 pm
by psyrob
This is a little late for the issue, but I use Koralia Evolutions for the past year, the 1050s, and I have had no issues...they are going on an off at 45 second intervals for the past year and like I said, no problems.
Oh, Roberto:
I just re-calibrated my ph probe, and I got 810 for the 10.0 solution...this close enough? Or should I adjust up with the client software to 830? the 7.0 solution got me a 531