Total hardness, that is the presence of magnesium and calcium, is due mainly to the runoff water dissolving these salts as it flows or filters through different strata. Hardness can also cause scaling of pipes in cooling and heating systems.
The HI 93735 measures the total hardness in drinking, surface and wastewater.
This meter uses an exclusive positive-locking system to ensure that the cuvette is in the same position every time it is placed into the measurement cell. It is designed to fit cuvettes with a larger neck making it easier to add both sample and reagents. The cuvettes are made from special optical glass to obtain best results.
HI 96735 is supplied with sample cuvettes with caps (2), 9V battery and instruction manual.
|Range||LR 0 to 250 mg/L; MR 200 to 500 mg/L; HR 400 to 750 mg/L|
|Resolution||1.0 mg/L from 1 to 100 mg/L; 5.0 mg/Lfrom 100 to 750 mg/L|
|Accuracy||LR ±5mg/L ±4% of reading@ 25°C; MR ±7 mg/L ±3% of reading@ 25°C; HR ±10 mg/L ±2% of reading@ 25°C|
|Light Source||light emitting diode|
|Light Detector||Silicon photocell with narrow band interferencefilter @ 466 nm|
|Method||Adaptation of the EPA recommended method 130.1.|
|Environment||0 to 50°C (32 to 122°F); max 95% RH non-condensing|
|Power Supply||9V battery|
|Auto-Shut off||after ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder|
|Dimensions||192 x 104 x 69 mm (7.6 x 4.1 x 2.7")|
|Weight||360 g (12.7 oz.)|
Hanna Instruments products are manufactured in our ISO 9001 facilities, meeting the highest quality standards in the industry. Hanna's high standards also apply should a product be returned due to defects in material or workmanship. Our extensive warranty extends up to three years on some products. Limitations: Warranted products may be returned for repair or replacement only at the discretion of Hanna Instruments. In some circumstances, remedy may constitute refund for the price paid for the product.
The warranty period commences from the original date of sale to the user or a maximum of 18 months from factory ship date. Warranty is valid only when the product is used under normal conditions and in accordance with operating limitations and prescribed maintenance procedures. The express warranty stated previously is the only express warranty given by Hanna to the end-user buyer. Hanna expressly disclaims any warranties implied by law, including but not limited to warranty of merchantability of fitness for a particular purpose. Hanna shall not be liable for any individual or consequential damages of any kind for breach of any warranty, negligence, on the basis of strict liability or otherwise. Hanna's warranty periods are:
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