aqua rite calibration problem

[whiter16]

Just had my salt level checked and it is 3600ppm.
I have a T-15 cell that is a year old.
Control board is a year old.
when I calibrate the unit to the correct salt level reading (3600) it
keeps dropping over a 24 hour period, until it stops at 2700.
I cleaned the cell and the flow switch today and started the unit up,
with the same results.
Any help would be appreciated.

 

[JasonLion]

Welcome to TFP!

"Calibration" doesn't do what you think it does. All it does is set the running average level (which is what is displayed) to the instant reading. The running average then goes back to being a running average, which will get it back to what it was before after a while (assuming nothing else has changed).

Why do you think you need to calibrate the unit? The SWG is typically more accurate than any other kind of test that is easily available (except when the cell is about to fail).

Also, if the water is cold the salt reading is expected to be lower than actual.

 

[chiefwej]

You just add enough salt to make the SWG happy