How does temp affect salinity testers
- Thread starter Oceanman5
- Start date
- Tagged users None
John Doe
Active Member
I think it has something to do with the evaporation of water. When the temperature is higher, the evaporation of water is greater, so the concentration of salt becomes higher.
Randy Holmes-Farley
Reef Chemist
Staff member
Super Moderator
Excellence Award
Expert Contributor
Article Contributor
R2R Research
My Tank Thread
The ice cap should not have a temp effect unless it is not well implemented by the company.
How large of an effect are you talking about and how did you measure it? If it is at the lfs, how can you be sure it is a temp effect?
Best way to check is take some tank water, measure the salinity, then let it cool to room temp and measure again.
How large of an effect are you talking about and how did you measure it? If it is at the lfs, how can you be sure it is a temp effect?
Best way to check is take some tank water, measure the salinity, then let it cool to room temp and measure again.
Oceanman5
Community Member
I actually work at this LFS so I've noticed that when people bring their water samples which has sat in their car (83-90 F) the icecap pen shows once result and then when I let it cool, I get a different reading. I've seen salinity changes of about +/- 1.002. For example 1.025 and then 1.023. I haven't yet found a correlation whether a decrease in temp also decreases salinity
Randy Holmes-Farley
Reef Chemist
Staff member
Super Moderator
Excellence Award
Expert Contributor
Article Contributor
R2R Research
My Tank Thread
Actual salinity does not change at all with temp.
The conductivity the ice cap measures is corrected internally for temp effects, but either the correction is not implemented perfectly, or the temps are outside its corrective range.
