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Photometer pH, Free Chlorine, Alkalinity, Cyanuric Acid Hanna

Model 01.015.222.001

Condition New

HI971044 Pool Line Portable Photometer is designed to measure pH, Alkalinity, Free & Total Chlorine, and Cyanuric Acid in swimming pools, hot tubs, and spas. This photometer combines accuracy and ease of use in a simple, portable design.

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483,60€

-25%

644,80€

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The advanced optical system provides laboratory-grade accuracy, while its user-friendly design is easy for any user, making it the perfect photometer for your water quality testing needs.
No warm-up time before taking a measurement
Learn mode for step-by-step instructions
CAL Check to verify meter performance
Description
Free and total chlorine, pH, alkalinity, and cyanuric acid are some of the most important parameters when maintaining a safe and clean pool. Chlorine is a common chemical used by many due to its disinfectant properties. Free chlorine can exist in two forms, and which form is present is based on pH. At pH less than 7.6, hypochlorous acid (HOCl) is the predominant form found, while at pH greater than 7.6, the hypochlorite (OCl-) form predominates. This is very important when it comes to preventing biological growth in the water or maintaining the safety of a pool, as hypochlorous acid is 100 times more effective as a disinfectant. Total chlorine represents both free chlorine and combined chlorine present. Combined chlorine is chlorine that is bound to nitrogenous substances such as ammonia. In swimming pools, the combined chlorine that we can smell is an irritant to the eyes. A free chlorine measurement is subtracted from a total chlorine measurement to determine how much combined chlorine is present. Alkalinity is also a very important parameter in monitoring pool water chemistry. Alkalinity is the buffering ability of a solution to resist change from an acid or a base. Chlorine can also be a base that will raise the pH of the water as it is added to it. Having an adequate alkalinity level helps regulate the pH so that it takes more over time to cause a pH change. Cyanuric acid is often added to a pool to prevent chlorine loss from sunlight. Cyanuric acid is usually found in dry chlorine such as trichloroisocyanuric acid (trichloric acid). This form can be purchased as a solid “pack” and placed in flotation devices to slowly erode into the water. Maintaining the proper cyanuric acid level will increase the lifespan of the chlorine in the pool. Cyanuric acid will build up overtime as more of the chemical is added. Unfortunately, too much will eliminate the oxidation-reduction potential (ORP) that is effective in killing bacteria in the pool. For this reason, cyanuric acid should be measured for pools that use it as a stabilizer. Important Note: Chlorine by DPD chemical measurement is preferred over ORP measurements due to the coverage of the oxidation potential of chlorine and other oxidants when cyanuric acid (isocyanuric acid-containing disinfectants) is used as a stabilizer. An ORP reading of 625 -650 mV will be possible when cyanuric acid is used.
The HI971044 allows any user to measure these essential pool water quality parameters with laboratory accuracy. The reagents are pre-assembled and the meter offers a learning function to guide the user step by step through the measurements.
The HI971044 features an innovative optical system that offers superior performance in accuracy, repeatability, and short time to perform a measurement. This compact, waterproof meter is extremely user-friendly with a tutorial mode that guides the user graphically, step-by-step, through the process of performing a measurement. The use of an illuminated LED dot allows for the use of virtual keys that make meter operation very intuitive, including selecting different units of measurement, reviewing GLP data, recalling the last 50 measurements, and customizing the meter to the user’s preferences. The HI971044 is completely waterproof, including a cuvette base designed with ridges to protect the optical path from scratches from the cell and a flanged battery compartment that holds three standard AA batteries. The compact design fits comfortably in the hand for field use or on a table for benchtop use. The LCD screen is 71 mm (2.75″) by 37 mm (1.6″) and is backlit for easy viewing in all conditions.