Sestos and PT100 probe error

[Robbo2234]

Hi all,

Just installed my new PT100 probe, after setting my PID to 21 for PT100 I am getting a Error displaying
orAL my goggling skills has found it could be a wiring error but now doing all possible wiring connections I am now pulling my hair out!!

I have done the usual thing in this situationist and drunk half a keg and still feeling frustrated!!

 

[Robbo2234]

http://s186.photobucket.com/user/Robbo2232/media/VIDEO0086_zpscf2200ce.mp4.html



Video of error

 

[brewologist]

Hey Robbo,

I'll make some suggestions before more qualified members answer your post.

You've probably done this but check the probe connection to the PID again. Do you have two red and a blue? Make sure there wired correctly. Also when I got my probe I had to solder one of the connections back on. Could be a loose wire somewhere.

Post a pic of your set up and the back of the PID so we can see how its wired up.

Hope you sort it out.

Cheers,

 

[Robbo2234]

Hi brewologist,

I hope I do too!

from the PID I have 3 wires running to a connection on the control box and then a cable to the probe.
will get a photo up tomorrow if needed.

 

[brewologist]

The connection on the control box was where my white wire had a broken solder.

 

[Robbo2234]

the connection in the box looked fine but will have a look tomorrow

 

[Truman42]

If you cant see a physical break in the wires disconnect your wires from the pid and check them with a multimeter.

You should get the following

Earth1 and Earth2, 0 resistance or very close.
Earth1 and probe, approx 110-120ohm
Earth2 and probe, approx 110-120ohm

if you dont there is a problem with one of the wires. then maybe check again from the connector onwards so you know if its th actual connector or a wire in the probe.
Or you could just check for continuity from the wire at the pid to the outlet on the connector.

 

[Robbo2234]

while waiting for a multimeter I did some more dicking about.

http://s186.photobucket.com/user/Robbo2232/media/VIDEO0087_zps046134af.mp4.html

If I put the red wires into the same connection and received a different error.
i don't know what that means tho...

if I don't connect the probe at all I receive the original error, I suppose I could assume that its a wiring problem.

Requested pics

 

[brewologist]

Hey Robbo,

Its a bit hard to see from that pic but I think you have to swap the red lead at the bottom of the pic with the white lead at the top.
Don't take my word for it but that is what I'm seeing in the pic. Try it, cant hurt as all you will see is orAL if its not right.

Maybe take a pic that shows the entire back of the PID so we can get a better perspective of what we're looking at.

Swap the wires and see if it works.

Cheers,

 

[brewologist]

Hey Robbo,

Did you fix the problem?

C/5 should be the white wire with blue terminal.

3 & 4 should be red wires. doesn't matter which ones.

Edit, more info added.

 

[Truman42]

Hey Robbo,

Its a bit hard to see from that pic but I think you have to swap the red lead at the bottom of the pic with the white lead at the top.
Don't take my word for it but that is what I'm seeing in the pic. Try it, cant hurt as all you will see is orAL if its not right.

Maybe take a pic that shows the entire back of the PID so we can get a better perspective of what we're looking at.

Swap the wires and see if it works.

Cheers,

No I think he has it right. Sensor at the top and 2 earths below in any order. Thats how mine is.
Providing from his panel connector out to his probe he has it wired the same way and hasnt switched it around in his probe plug.

 

[Robbo2234]

Still no fix yet,,,

busy day didn't get my hands on a multimeter have tried all connection combos.
as I said before if I put the two red connectors in the same terminal I get a different error. strange...

but its all just stuffing about until I get a meter.

 

[brewologist]

Good luck mate.

Hope you find the problem.

 

[Truman42]

OrAL generally means the probe isn't plugged in so you have a break in the wire somewhere. I assume you have your probe, a length of cable and then a plug with three male prongs or 3 female holes (called an XLR plug). This plugs into your panel connector yeh?

Unscrew the XLR connector and check the wires aren't broken.
From your picture the wires going from the pid to the panel connector look fine so it's not that.

If the wires in the XLR connector are ok then it's a break at the sensor end. The two earth wires are joined together and connected to one side of the probe and the sensor wire is connected to the other. If your probes thermowell has a small screw in the top which clamps the probes wires in place then unscrew this and slide the probe out. Where the wires are connected will usually be covered in heat shrink. Just wiggle this around a bit with the probe connected to the pid and turned on. See if the pids display changes. You might have to just move the wires a bit and hold them then turn the pid off and back on again though. If it works then you have a break under the heat shrink.

If you still can't find the fault then your going to have to get a multimeter. But you can try all this while your waiting to get one.

 

[Robbo2234]

thanks guys!


took apart the lead and one of the wires wasn't connected, a quick solder job and now working!