HI7754

Pool Digital Alkalinity Checker® HC

Name: Pool Digital Alkalinity Checker® HC
SKU: HI7754
Price: 67.99 USD
Availability: InStock

$67.99

The Hanna Alkalinity Checker^® Handheld Colorimeter (HC) is perfect for testing Alkalinity levels in freshwater pools. Measure Alkalinity regularly with our Checker to sustain a stable pH in your swimming pool.

Range: 0 to 500 ppm

Easy-to-read, instant digital results
Small, convenient portable size
User-friendly, one-button operation, straightforward steps

Supplied with compatible Reagent Set for 25 Alkalinity Tests (HI7754-26). We recommend you grab extra reagents to keep on-hand. Our Chlorine Remover Reagent (HI937554-53) is also good to have for testing.

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HI7754 Pool Line Checker^® Handheld Colorimeter is designed for the measurement of alkalinity in swimming pools, hot tubs, and spas. Alkalinity is a very important parameter in monitoring swimming pool water chemistry. Alkalinity is the buffering capacity of a solution to resist a pH change from the addition of an acid or base. This can be a challenge when using common forms of chlorine, in that, as a base when the chlorine is added the pH will increase. As the pH of the water increased above pH 7.4 the chlorine becomes predominately in the hypochlorite form instead of the hypochlorous acid as the pH decreases from pH 7.4. Hypochlorous acid is 100 times more effective as a sanitizer than the hypochlorite form. When water is low in alkalinity the pH will increase as the chlorine is added. When there is adequate alkalinity then as the chlorine is added the base is absorbed and the pH remains the same. Monitoring alkalinity is important in maintaining a stable pH of a swimming pool hot tub, or spa.

The contoured style of these Checkers’ fit in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

To perform a measurement the instrument a water sample is placed into a cuvette and the meter is zeroed. Next, a reagent is added that will react with alkalinity to produce a distinctive range of colors from yellow to greenish-blue. Last, place the vial into the Checker, press the button and read the results. It’s that easy. It is important to note that if chlorine is in the water sample to be tested then it is necessary to add HI937554-53 chlorine remover first before proceeding with the test.

Resources

Specifications

Specification Name	Detail
SKU	HI7754
Range	0 to 500 ppm (as CaCO₃)
Resolution	1 ppm
Accuracy @ 25°C (77°F)	±5 ppm ±5% of reading @ 25 °C (77 °F)
Light Source	Light Emitting Diode @ 610 nm
Light Detector	Silicon photocell
Method	Colorimetric Method. The reaction causes a distinctive range of colors from yellow to greenish blue to develop.
Battery Type	1.5V AAA Alkaline
Auto shut-off	After 10 minutes of non-use and 2 minutes after reading
Environment	0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions	86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)
Weight	64 g (2.3 oz)
Ordering Information	HI7754 (Pool Line) Checker®HC is supplied with sample cuvette and cap (2 pcs.), Alkalinity reagent starter kit (reagents for 25 tests), 1 mL syringe with tip, 1.5V AAA Alkaline battery (1 pc.), and instruction manual
Reagent Set	HI7754-25 Reagents for 25 Alkalinity tests, 1 syringe and 1 tip
Calibration Check	HI7754-11 Alkalinity certified standard kit
Warranty	1 year

Manual

Pool Digital Alkalinity Checker® HC (HI7754) Manual Download

Pool Digital Alkalinity Checker® HC

Resources

Keep extra testing supplies on-hand

Pool Line Alkalinity Checker for Freshwater | HI7754 Reviews