Help understanding my EC readings

Sirlagzalott

Back at it after a 12yr hiatus
View Badges
Joined
Mar 6, 2024
Messages
224
Reaction score
243
Location
Cleveland, OH
Rating - 100%
1   0   0
I’m using a Milwaukee MC811 Temp/EC/pH monitor. I’m confused on my EC readings. I’m currently getting a reading of 15.83mS. Shouldn’t this be around 35? The unit is calibrated and my salinity (refractometer) is 1.025.
 

Randy Holmes-Farley

Reef Chemist
View Badges
Joined
Sep 5, 2014
Messages
67,599
Reaction score
64,063
Location
Arlington, Massachusetts, United States
Rating - 0%
0   0   0
nobody uses EC for anything in reefkeeping


Perhaps you just know it under other names, such as conductivity or tds. I recommend it as the best way to monitor many things, including ro/di function, kalkwasser potency, and seawater salinity.

As best I can tell from their web site, the mc811 cannot read high enough to measure seawater salinity, which is 53 mS/cm. The link below says it cannot read accurately above 5 mS/cm.

 
OP
OP
Sirlagzalott

Sirlagzalott

Back at it after a 12yr hiatus
View Badges
Joined
Mar 6, 2024
Messages
224
Reaction score
243
Location
Cleveland, OH
Rating - 100%
1   0   0
Perhaps you just know it under other names, such as conductivity or tds. I recommend it as the best way to monitor many things, including ro/di function, kalkwasser potency, and seawater salinity.

As best I can tell from their web site, the mc811 cannot read high enough to measure seawater salinity, which is 53 mS/cm. The link below says it cannot read accurately above 5 mS/cm.

Thank you! Was driving me crazy. I'll just disregard the EC function of this monitor.
 

Stuck to your aquarium: Do you put reef-related stickers on or around your reef system?

  • I have reef-related stickers everywhere!

    Votes: 5 3.7%
  • I have some reef-related stickers on or around my reef system.

    Votes: 39 28.7%
  • I have some reef-related stickers, but not on my reef system.

    Votes: 29 21.3%
  • I don’t have reef-related stickers, but I am interested in getting some.

    Votes: 13 9.6%
  • I have no interest in reef-related stickers.

    Votes: 48 35.3%
  • Other.

    Votes: 2 1.5%
Back
Top