Reef Angel Forum

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?

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.

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

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?

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:

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?

Do you get zero when you try to calibrate?

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.

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

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

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?

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???

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.

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?

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.

Seems like something is up with that heater.

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.

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?