The HI 96711 meter measures the free and total chlorine (Cl2) content in water and wastewater.
This meter uses an exclusive positive-locking system to ensure that the cuvette is in the same place every time it is placed into the measurement cell.
Chlorine is integrated into water supplies in it’s molecular form for the purpose of destroying unwanted microorganisms. Once introduced to the water, chlorine will form into three different forms; free chlorine, hypochlorous acid, and hypochlorous ions. Free chlorine will combine itself with ammonia and nitrogen compounds, creating combined chlorine. When chlorine and ammonia combine, it creates chloramines (monochloramine, dichloramine, and nitrogen trichloride. Proper testing should be administered when chlorinating any water supply, as potentially harmful compounds such as chloroform may be formed. N, N-diethyl-p-phenylenediamine (DPD) as well as other methods are available for measuring total residual chlorine.
HI 96711 is supplied with sample cuvettes with caps (2), 9V battery and instruction manual.
HI 96711C includes photometer, sample cuvettes with caps (2 ea.), CAL CHECK standard cuvettes (2), 9V battery, scissors, cloth for wiping cuvettes, instrument quality certificate, instruction manual and rigid carrying case.
|Range||Free Chlorine||0.00 to 5.00 mg/L|
|Range||Total Chlorine||0.00 to 5.00 mg/L|
|Resolution||0.01 mg/L from 0.00 to 3.50 mg/L; 0.10 mg/L above 3.50 mg/L|
|Accuracy||±0.03 mg/L ±3% of reading @ 25°C|
|Light Source||Tungsten lamp|
|Light Detection||Silicon Photocell|
|Power Supply||9V battery; auto-off: after ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder|
|Environment||0 to 50°C (32 to 122°F); RH max 95% non-condensing|
|Dimensions||192 x 104 x 69 mm (7.6 x 4.1 x 2.7")|
|Weight||360 g (12.7 oz.)|
|Method||adaptation of the USEPA method 330.5 and Standard Method 4500-Cl G|
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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