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The total hardness, which is the sum of magnesium hardness and calcium hardness, is the hardness of water formed by the dissolution of some minerals through the filtration of strata with different structures during the flow of rainfall. In addition, the hardness of the water can cause scaling in the heating and cooling systems of the water, reverse osmosis systems, and pipes in desalination plants.
The H5HI93735 designed by HANNA® can detect 3 different ranges: 0 to 250, 200 to 500, 400 to 750ppm, covering almost all application measurement ranges. The reading of HI93735 is directly expressed in ppm CaCO3, which can be converted to the corresponding unit: French degree (ofH), German degree (odH), British degree (oeH)
H5HI93735 main performance characteristics
? Compact design, easy to hold;
? Simple operation, easy to complete various operations;
? Clear and easy-to-read LCD display, easy to read data quickly;
? Cuvette positioning mark to ensure the consistency of the measurement;
? Reagents are powder or liquid packaging. The precise dosage of reagents ensures good reproducibility;
? Automatic power saving mode
H5HI93735 (total hardness)
Measuring range
0 to 250 mg / L, 200 to 500 mg / L, 400 to 750 mg / L CaCO3
Resolution
1 mg / L (0 to 100 mg / L)
5 mg / L (100 to 750 mg / L)
Measurement accuracy ± 5 mg / L or ± 4% of reading (0 to 250)
± 7 mg / L or ± 3% of reading (200 to 500)
± 10 mg / L or ± 2% of reading (400 to 750)
Unit conversion
1 French degree (ofH) = 10.0 mg / L CaCO3
1 German degree (odH) = 17.8 mg / L CaCO3
1 British degree (oeH) = 14.3mg / L CaCO3
Photodetector silicon photocell and light emitting diode
Wavelength setting
470 nm
The measurement method refers to the EPA 130.1 standard method. The Ca or Mg in the sample reacts with the reagent to become purple-red
Power mode
1 × 9V battery
Automatic shutdown in measurement mode, automatic shutdown after 10 minutes of non-use
Applicable environment
0 to 50 ° C (32 to 122 ° F), RH max 95%, no condensation
size and weight
180 × 83 × 46 mm, 290g
H5HI93735
Full range total hardness determination, HI93735-0 full range (0to750mg / L) reagent, HI731313 cuvette x2, cuvette cleaning cloth x2, Chinese and English manual, carrying case
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Jiangmen Junerte Stainless Steel Kitchenware Co.,Ltd , https://www.jmjetkitchenware.com