HI723 Checker HC ® - Chromium VI, HR
HI723 Checker HC ® - Chromium VI, HR
THB 2,500.00 * Prices plus VAT plus shipping costs
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Product information "HI723 Checker HC ® - Chromium VI, HR"

There are two natural forms of ionic chromium, the hexavalent ion, Cr (VI) and the trivalent Cr (III). Cr (III) is much less toxic than Cr (VI) and seldom found in potable waters. Cr (VI), however, is toxic to humans and is found in water. Even though the toxic effects from Cr (VI) in drinking water are not well documented, it is a suspected carcinogen. The maximum permissible level or Cr (VI) allowed to be released into the waterways is 50 ppb. Its level in drinking water is normally much lower and a lever higher than 3 ppb is suggestive of industrial pollution.

By monitoring this parameter with the HANNA HI 723 Checker®HC, serious health and safety risks can be avoided.

The HI 723 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent, shake vigurosly for 10 seconds. Last, place the vial into the Checker®HC, press the operational button for about 3 seconds and the display will show the countdown prior to the measurement or, alternatively, wait for 6 minutes and press operational button. When the timer ends the meter will perform the reading. The Checker®HC displays concentration in ppb of chromium VI. It’s that easy.


Order Information:   HI 723 Checker®HC is supplied with sample  cuvettes with caps (2 ea.), power reagents for chromium VI HR (6), battery and instructions.

Product Manuals

  Manual: Download

Specification :

Range   0 to 999 ppb
Resolution   1 ppb
Accuracy @ 25°C   ±5% of reading ±5 ppb
Light Source   LED @ 525 nm
Light Detector   silicon photocell
Environment   0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type   (1) 1.5V AAA
Auto-off   after ten minutes of non-use
Dimensions   81.5 x  61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight   64 g (2.25 oz.)
Method   adaptaion of the ATSM, Manual of Water and  Enviornmental Technology, D 1687-92, Diphenylcarbohydrazide method



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