Conductivity calibration problem

[zotiri]

hi i am calibrating Conductivity probe but it reads 35ms in the calibration fluid 50ms
i tired few times but it is same.
i bought the calibration fluid few months ago
somebody can help me ?
thanks

[GHL Support]

Are you sure that you have followed exactly the calibration instructions for conductivity in the ProfiLux user manual?
As the fluid is for salt water - do you have a salt water tank? Is the conductivity measurement set correctly to salt water?
How old is your conductivity probe? Can you tell us its ADC values?
Are your temperature values stable?

[zotiri]

yes i followed few times fluid is for salt water 50ms
yes i have a saltwater tank. yes it is set to salt water.
it is brand new.
i solved the problem now it reads 50ms in calibration fluid
how is done....
firstly i located the fluid conteiner in the tank wait for the equilibrium of the temperature of the tank and the fluid.
then i pour the fluid to a clean glass and hold it in the water.
i locate the temp probe in the the glass which has the 50ms fluid and began the calibration process
at the second stage it was still reading 32ms in the calibration fluid then calibration finish and i select yes with anger because nothing has changed
at the air it reads 20 adc in the fluid about 350
then when i click yes it began to raise and it stop at 50ms then i became really happy with the result.
now everything is fine.
i hold the glass in the tanks water because temp is not changed all the time i recommend it hardly