Hard water is water that has high mineral content (as opposed to "soft water"). Calcium is the most common mineral associated with water hardness. While hardness is not generally a health hazard it can pose serious problems in industrial settings, where water hardness is monitored to avoid costly breakdowns in boilers, cooling towers, and other equipment. In domestic settings, hard water is often indicated by a lack of suds formation when soap is agitated in water, and by the formation of limescale in kettles and water heaters. Wherever water hardness is a concern, water softening is commonly used to reduce hard water's adverse effects.
Although water hardness usually measures only the total concentrations of calcium and magnesium, iron can also be present at elevated levels. The presence of iron characteristically creates a brownish (rust-like) color to the calcification, instead of white (the color of most of the other compounds).
- Automatic Temperature Compensation provides accurate reading over the entire range.
- Limit alarm alerts when reading exceeds range.
- Calibration Due Alarm prompts user to calibrate the meter regularly.
- Calibration report provides the details of the calibration standard and slope.
- Stability indicator shows when a measurement is recognized as stable.
- Auto-Read feature senses and locks the measurement endpoint.
- Interval Readings automatically send the measured data to the memory or printer.
- Password protection prevents the unauthorized calibration and settings.
- Expanded memory is capable of storing and recalling the data sets of 2 years.
- Stored readings can be printed or sent to the computer by e-mail.
- Multiparameter display allows the screen shows up to 3 parameters simultaneously.
- Reset feature automatically resumes all settings back to factory default options.
- 2 to 5 points calibration from low to high concentrations.
- Selectable hardness units ( German degree, English degree, French degree, gpg, mg/L and mmol/L) are used for professional water hardness measurements.