Temperature prob 2

wolffman64 · Post by **wolffman64** » Sun Apr 27, 2014 5:54 am

Hi,
I have everything up and running the way I currently want it (pretty basic program), but I have two issues that I would appreciate to get some help with:
1) I can't find my main programming cable (kids or cat are the possible suspects), the one that you connect to the USB port on the PC, and the other end to the RA+ unit (or wifi unit). Can you buy these separate?

2) I have 1 temperature probe connected in my sump, and it is coming up as T1 on the display, and this is used to control chiller/chiller pump and the heater. When I try and connect the other temp probe (that I want to use as room temperature), and reboot the RA, the sump temp probe then comes up as T2, and the room temperature probe as T1, and the system then derails. This happens every time, no matter which order I plug them in. What am I missin and what am I doing wrong?

lnevo · Post by **lnevo** » Sun Apr 27, 2014 6:33 am

Your not missing anything. The order is determined by the serial number of the probe. You'll have to switch them physically or code specifically for that probe.

wolffman64 · Post by **wolffman64** » Sun Apr 27, 2014 3:50 pm

lnevo wrote:Your not missing anything. The order is determined by the serial number of the probe. You'll have to switch them physically or code specifically for that probe.

OK. How can I code specifically for that probe and make it T1?

Also, any idea about the cable?

Thanks for your reply

wolffman64 · Post by **wolffman64** » Tue Apr 29, 2014 3:16 am

I have found a place to buy the cable, didn't know that it's a standard cable.

Any ideas about the programming for the temp probe above?

rimai · Post by **rimai** » Tue Apr 29, 2014 7:33 am

You can buy the cable in the webstore too.
There is no way to change the T2 or T1 order, but we can change so that the controller uses T2 for your heater/chiller.
You need to change your code to this:

Code: Select all

  ReefAngel.TempProbe = T2_PROBE;
  ReefAngel.OverheatProbe = T2_PROBE;

wolffman64 · Post by **wolffman64** » Tue Apr 29, 2014 8:11 pm

Thanks Roberto!
I have changed the code, and it works fine.

I also have some sort of problem with the Salinity probe. It shows 5.9, no matter what solution I put it in. I have checked the connection from the relay to the expansion USB hub, and the connection to the salinity expansion, and the probe cable, and can't find anything wrong. Any other ideas on what could be wrong?

rimai · Post by **rimai** » Wed Apr 30, 2014 8:10 am

Do you get zero when you try to calibrate?

wolffman64 · Post by **wolffman64** » Fri May 02, 2014 3:16 am

nope, it still stays at 5.9, no matter if I put the probe in calibration fluids or in the sump. Very strange....

Apart from that, now that I have got the rest of my RA+ and additions up and working (after my initial problems with the adapters), it's a GREAT product, I absolutely love what it can do. It has also transformed my two Jebao WP-40 to awesome machines with different flow patterns throughout the day. Soooo cool.

rimai · Post by **rimai** » Fri May 02, 2014 9:10 am

What I meant was numbers when you go into calibration mode.

wolffman64 · Post by **wolffman64** » Sun May 04, 2014 3:34 pm

Ah! I can't remember, will try that tonight.

wolffman64 · Post by **wolffman64** » Sun May 11, 2014 5:55 am

I have recalibrated it (and reconnected the power for the salinity expansion) and it's displaying some sort if readings again, but it's all over the place. The actual salinity is 34 according to my newly calibrated refractometer, but the salinity according to the probe varies during a 24 hour period from 36 to 38 and then down to 20!

Any ideas?

wolffman64 · Post by **wolffman64** » Mon May 12, 2014 2:49 am

I have found some other interesting facts in relation to this.

The salinity is steadily decreasing by 1ppt per hour, until the heater kicks in, then the salinity goes up with about 10 to 20 ppt almost instantly???

rimai · Post by **rimai** » Mon May 12, 2014 8:11 am

Salinity is highly sensitive to temperature changes. One degree in temperature change can influence the salinity reading by a lot.
Try placing the probe in a region where temperature is more stable.

wolffman64 · Post by **wolffman64** » Mon May 12, 2014 3:25 pm

The heater and salinity probe sits in different parts of the sump, and the salinity jumped up from 30ppt to 50 ppt within 5 seconds after the heater kicked in, so it has nothing to do with temperature changes, and when the heater kicked in this morning, the salinity jumped up from 50 to 75 ppt almost instantly.

What else could it be, a faulty salinity probe?

wolffman64 · Post by **wolffman64** » Mon May 12, 2014 3:26 pm

And the temperature in the sump is measured in the same "pocket" as the salinity probe sits in, and the temperature has been constant between 25.8 to 26.2 over the last 24 hours.

rimai · Post by **rimai** » Mon May 12, 2014 5:40 pm

Seems like something is up with that heater.

wolffman64 · Post by **wolffman64** » Tue May 13, 2014 4:47 am

Not sure I follow your reasoning there. The heater is functioning perfectly with regards to temperature interval, and the tank is constant between 25.8 and 26.2 where it should be.

rimai · Post by **rimai** » Tue May 13, 2014 7:55 am

I don't know. Maybe voltage leak? If it only happens when the heater turns on, something tells that the heater is causing it to happen.
What happens when you place the salinity probe in a cup if tank water?

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