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The Milwaukee MW12 photometer is a portable device designed to measure the concentration of phosphates PO4 in aquariums. Compact and easy to use, it provides quick and reliable readings directly displayed in ppm on the LCD screen.
The MW12 uses a colorimetric method based on the reaction between phosphate and a specific reagent. This reaction causes a blue coloration of the sample, the intensity of which is measured by the photometer to accurately determine the phosphate concentration.
Thanks to its compact format and intuitive operation, the MW12 is perfectly suited for on-site measurements. In just a few minutes, the user obtains an accurate value without visual interpretation, ensuring excellent reproducibility of results.
Take 10 ml of aquarium water and place the sample in the provided vial. Insert the vial into the photometer to perform calibration. Then remove the vial, add a full packet of reagent, and replace the vial in the device. Start the measurement: a countdown automatically begins corresponding to the reaction time. At the end of the countdown, the value is displayed directly on the screen.
To avoid any interference, it is recommended to handle the vials with care, clean their surface thoroughly, and avoid fingerprint marks upon inserting them into the photometer.
| Parameter | Value |
|---|---|
| Measured Parameter | Phosphates PO4 |
| Measurement Range | 0.00 to 2.50 ppm |
| Resolution | 0.01 ppm |
| Accuracy | ± 0.04 ppm ± 4% of reading at 25 °C |
| Repeatability | ± 0.01 ppm |
| Light Source | Light-emitting diode 525 nm |
| Detector | Silicon photocell |
| Method | Ascorbic acid method, adaptation of standard water analysis methods |
| Operating Conditions | 0 to 50 °C, maximum relative humidity 95% without condensation |
| Power Supply | 1 AAA 1.5 V battery |
| Automatic Shut-off | After 3 minutes of non-use and 2 minutes after reading |
| Dimensions | 81.5 x 61 x 37.5 mm |
| Weight | 64 g |
The Milwaukee MW12 photometer is a reliable tool for precise phosphate monitoring in aquariums, provided clean vials, suitable reagents, and strict adherence to the measurement protocol are used.