Expansion box and conductivity probe does not work

[Dariuszs]

Hi,
I have a Profilux 3ex and an expansion box.
To the main controller I have connected
• Temp. probe,
• conductivity probe platinum ,
• ph probe
• 3 level sensors (all optical)
• 2x tunze pumps
I have connected the expansion box directly using PAB 2 port.
To the expansion box I have connected
• 1 floating level sensor,
• Temp. probe
• conductivity probe platinum ,
After calibration of the conductivity probe connected to the expansion box I got high readings (1.420) which increased to around 1.500 and after 3 minutes profilux displays alarm - Sal2 ***.
I connected this probe to the main controller and probe displayed the correct value. I also connected the conductivity probe from the main controller to the expansion box and I got the same results – high readings and after 2-3 minutes profilux displays alarm Sal2 ***.
I have the latest firmware uploaded on both profilux and expansion box. I did reset of PAB in the main controller and re-assigned all of devices (3x PAB extension leads and 1x Expansion box) with no improvements. Can you please let me know if I need to send the expansion box back to service?

Thank you in advance and regards
Dariusz

[Antipodes]

HI Dariusz,
Support ticket
Does sound like a hardware problem.
GHL have a support ticket system at the above link.

(I am just a user, not GHL staff)

[Dariuszs]

Thank you. I've just logged a ticket.

[GHL Support]

Hello,

have you selected the correct water type (salt or fresh water) for the connection in the Box?
Have you also chosen the right display (conductivity, density, salinity)?

[Dariuszs]

Hi

I set the switch on the back of the expansion box to S and set all settings same as my main conductivity probe.

[Dariuszs]

Hi,

Is there anything else what I can do or I should post the expansion box?

Dariusz

[GHL Support]

Hello,

can you give us the ADC-values of the probes?

[Dariuszs]

Hello,

The settings are as follows:

Conductivity1:
ADC1: 20
ADC2: 453
Current value 1.0246

Conductivity2:
ADC1:10
ADC2: 512
Current value 1.0535

Regards,
Dariusz.

[GHL Support]

Hello,

the ADC values look good, so the calibration has been successful.
One more hint: Which temperature (probe) have you assigned during the calibration of conductivity at the Expansion box?
Perhaps you have assigned the wrong temperature (probe)?

[Dariuszs]

Hi I have two temp probes. I used temp probe 2.