Description
HI-7014 Pool Line Free Chlorine Checker Handheld Colorimeter suitable for use in swimming pools, hot tubs and spas. The presence of free chlorine, in combination with a correct pH value, ensures that bathing water is clear and disinfected. The concentration of free chlorine in swimming water should be measured regularly. The HI-7014 bridges the gap between simple chemical testing kits and professional instruments. This checker uses an EPA approved DPD method. Specifically for free chlorine More accurate than chemical testing kits Large LCD Small size, great convenience One-button operation Operates on 1 single AAA battery Four easy steps to testing Step one – Add a sample to the included cuvette Step two – Insert sample into the Checker HC and press the button to zero Step three – Remove sample and add reagent as stated in the manual Step four – Reinsert sample and press the button to measure your results Range 0.00 to 2.50 ppm (mg/L) Resolution 0.01 ppm (mg/L) Precision 3% of reading ±0.03 ppm (mg/L) @ 25°C 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 2 minutes of non-use and after read Dimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) Weight 64 g (2.25 oz.) Method Adaptation of USEPA method 330.5. The reaction between free chlorine and the DPD reagent will cause a pint tint in the sample. Ordering information: Supplied with sample cuvettes and caps, reagent starter kit (6 tests), battery and instructions Reagent set HI-7014-25 (25 tests) Calibration set HI-7014-11 PLEASE NOTE: In some cases, samples may contain other parameters which may interfere with results Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese. In case of water with hardness greater than 500 mg/L CaCO 3 , shake the sample for approximately 2 minutes after adding the powder reagent. If the water used for this procedure has an alkalinity value greater than 250 mg/L CaCO 3 or acidity value greater than 150 mg/L CaCO 3 , the colour of the sample may develop only partially, or may rapidly fade. To resolve this, neutralise the sample with diluted HCl or NaOH.
