Pinpoint monitors???
- Thread starter pex
- Start date
LobsterOfJustice
Recovering Detritophobe
I had a lot of problems with the salinity monitor, and I have heard the calcium monitor is a POS.
Wow, some pretty strong opinions.
It is easy to calibrate a conductivity (salinity) meter. The directions for it say how to do it. Just drop the meter in the fluid and adjust it until it reads 53 mS/cm. Most people seem happy with the salinity probe. It is a little slower to equilibrate to the temperature of the tank water than the much more expensive meter that I also use, but that is not a big deal.
Here's the calibration directions:
http://www.americanmarineusa.com/salinitymonitor.html
from it:
Calibration Procedure
Note: The meter should be calibrated immediately before use. The calibration should be checked occasionally to verify your readings. The precise measurement of Salt by electronic conductive means has long been considered to be the most accurate method, especially when compared to Specific Gravity / Density (hydrometers) and refractometers.
Marine environments should use the calibration fluid labeled 53.0mS. Empty the 53.0mS into a small, clean cup and swirl the probe in the fluid making sure that no air bubbles have accumulated under the probe. Wait 1â€"œ2 minutes to allow for the temperature thermistor inside the probe tip to properly compensate for any temperature differences between the fluid and the probe. Using a miniature screwdriver, turn screw #3 (see diagram) until the display matches the 53.0mS fluid (±0.5). The calibration adjustment screw #3 is located inside the battery compartment most toward the center of the meter.
I review the Pinpoint calcium meter here. The drawback is that it is not a simple read of tank water, you process sample with it, just as you do with a kit. The nitrate meter is similar, but I'd have more confidence in it than a nitrate kit (which I have very low confidence in many) as it gets checked with every use with nitrate in seawater standards.
Electronic Calcium Monitoring
http://reefkeeping.com/issues/2005-04/rhf/index.htm
It is easy to calibrate a conductivity (salinity) meter. The directions for it say how to do it. Just drop the meter in the fluid and adjust it until it reads 53 mS/cm. Most people seem happy with the salinity probe. It is a little slower to equilibrate to the temperature of the tank water than the much more expensive meter that I also use, but that is not a big deal.
Here's the calibration directions:
http://www.americanmarineusa.com/salinitymonitor.html
from it:
Calibration Procedure
Note: The meter should be calibrated immediately before use. The calibration should be checked occasionally to verify your readings. The precise measurement of Salt by electronic conductive means has long been considered to be the most accurate method, especially when compared to Specific Gravity / Density (hydrometers) and refractometers.
Marine environments should use the calibration fluid labeled 53.0mS. Empty the 53.0mS into a small, clean cup and swirl the probe in the fluid making sure that no air bubbles have accumulated under the probe. Wait 1â€"œ2 minutes to allow for the temperature thermistor inside the probe tip to properly compensate for any temperature differences between the fluid and the probe. Using a miniature screwdriver, turn screw #3 (see diagram) until the display matches the 53.0mS fluid (±0.5). The calibration adjustment screw #3 is located inside the battery compartment most toward the center of the meter.
I review the Pinpoint calcium meter here. The drawback is that it is not a simple read of tank water, you process sample with it, just as you do with a kit. The nitrate meter is similar, but I'd have more confidence in it than a nitrate kit (which I have very low confidence in many) as it gets checked with every use with nitrate in seawater standards.
Electronic Calcium Monitoring
http://reefkeeping.com/issues/2005-04/rhf/index.htm
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