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  4. Digital total hardness checker (for fresh water) (Hanna Instruments JAPAN)
Digital total hardness checker (for fresh water)-HI 735
Digital total hardness checker (for fresh water)-Hanna Instruments JAPAN

Digital total hardness checker (for fresh water)
Hanna Instruments JAPAN

About This Product

■Easy measurement. Palm-sized total hardness checker

This instrument is a digital absorption photometer series that bridges the gap between ``visual inspection based on color'' and ``expensive digital measuring instruments,'' and measures total hardness (water hardness). Total hardness is the amount of calcium and magnesium in water converted to their equivalent calcium carbonate (CaCO3). The biggest feature of this device is that it is palm-sized and inexpensive, even though it has a digital display. Easy operation with one button makes it safe even for first-time users.

■It is used for these purposes

Measurement of hardness of mineral water, testing and evaluation of water purifiers and water softeners, measurement of tap water and natural water, measurement of water used for tea and coffee, analysis and management of water for cooking rice, beauty of skin and hair, etc. Industry, water quality testing of cooling water, hot water, and supply water, hardness measurement of cutting oil dilution water, analysis of raw water (tap water) for dampening water, testing of water used for dyeing, aquarium (water tank water), etc. *Measurement cannot be performed if the measurement sample is colored, cloudy, or contains floating substances.

■For those seeking high accuracy and reliability, go to HI 97735

The high-performance type HI 97735 is recommended for use in universities, experiments, quality control, water quality surveys, etc. Furthermore, it is highly accurate and has a function to verify numerical values ​​using standard solutions and to calibrate when there is a large discrepancy. Since customers can verify the numerical values ​​themselves at any time, it is perfect for those seeking reliability and peace of mind.

■Main features

・Measures total hardness from 0 to 350ppm (mg/L). ・Since it is not a visual inspection, you can rest assured that the same results will be obtained no matter who performs the measurement. - Countdown function until measurement using built-in timer. - Compact size yet easy-to-read LCD screen. ・There is only one operation button, so it is safe even for first-time users. - Numerical values ​​can be verified using standard solutions.

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    Digital total hardness checker (for fresh water)

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1 Models of Digital total hardness checker (for fresh water)

Image Part Number Price (excluding tax) Power supply Waterproof Weight Automatic power off Accuracy@25℃ Light source Measuring range Measurement principle Light receiving part Resolution External environment used Size
Digital total hardness checker (for fresh water)-Part Number-HI 735

HI 735

Available upon quote

1 AAA alkaline battery

No waterproof function

64g

After 10 minutes of non-use

±6ppm ±6% of measured value

LED (470nm)

0~350ppm (mg/L) (CaCO3 equivalent)

EPA 130.1 (Red-purple color occurs when the reagent reacts with calcium and magnesium)

Silicon photocell

1ppm (mg/L)

0~50℃ Relative humidity 95% or less (no condensation)

Length 86.0 x Width 61.0 x Thickness 37.5mm

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