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Magnesium & Calcium Hardness

You are here : Home | Spares & Parts | Water Testing Equipment Water Testing Instruments | Single Parameter Checkers | Magnesium & Calcium


Single Parameter Check – Magnesium & Calcium

  • Handheld Magnesium CheckerColorimeters
  • Easier to use and more accurate than chemical test kits
  • Dedicated to a single parameter
  • Small size, big convenience

Ideal for:

  • Water purification systems
  • Heating and cooling systems
  • Drinking water
  • Wastewater

The HI719 Checker®HC is a simple, accurate, and cost effective way to measure magnesium hardness. The HI720 Checker®HC is a simple, accurate, and cost effective way to measure calcium hardness.

The HI719 uses an adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, EDTA colorimetric method. The reaction between magnesium and reagents causes a reddish-violet tint in the sample.

The HI720 uses an adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Calmagite method. The reaction between calcium and reagents causes a reddish-violet tint in the sample.

 

ImageNamePrice Inc VATBuy
Single Parameter Check - MagnesiumSingle Parameter Check - Magnesium£72.00
72
Single Parameter Check - CalciumSingle Parameter Check - Calcium£72.00
72

 

Specifications
HI719 (Magnesium Hardness)IHI720 (Calcium Hardness)
Range0.00 to 2.00 ppm0.00 to 2.70 ppm
Resolution0.01 ppm0.01 ppm
Accuracy @ 25°C/77°F± 0.20 ppm ± 5% of reading± 0.20 ppm ± 5% of reading
Light SourceLED @ 525 nm
Light Detectorsilicon photocell
Environment0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type(1) 1.5V AAA
Auto-offafter ten minutes of non-use
Dimensions81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight64 g (2.25 oz.)
Methodadaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, EDTA colorimetric method. The reaction between magnesium and reagents causes a reddish-violet tint in the sampleadaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Calmagite method. The reaction between calcium and reagents causes a reddish violet tint in the sample

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