Hanna Instruments HI96725C Cyanuric Acid and pH Chlorine Portable Photometer Kit

Cyanuric acid and pH chlorine portable photometer kit. Legionella species is the agent that causes human legionnaires' disease as well as the lesser form, pontiac fever. Transmission is facilitated by the inhalation of mist droplets containing the Legionella bacteria. Common sources of Legionella include cooling towers used in industrial cooling water systems as well as in large central air conditioning systems, domestic hot water systems, fountains, and similar disseminators that draw from a public water supply. Natural sources include freshwater ponds and creeks. Since Legionella is especially harmful to people with weakened immune systems, it should be actively checked for in the water systems of hospitals and nursing homes. HI96725C includes cyanuric acid and pH chlorine photometer, hard carrying case, 2 sample cuvettes, scissors, cuvette cleaning cloth, battery and instruction manual. 0.00 to 5.00 milligrams per liter (ppm) free Cl, 0.00 to 5.00 milligrams per liter (ppm) total Cl, 0 to 80 milligrams per liter (ppm) CYA, 6.5 to 8.5 pH range. 0.01 milligrams per liter free Cl, 0.01 milligrams per liter total Cl, 1 milligrams per liter (ppm) CYA, 0.1 pH resolution. +/-0.03 milligrams per liter +/-3 percent of reading free Cl, +/-0.03 milligrams per liter +/-3 percent of reading total Cl, +/-1 milligrams per liter +/-15 percent of reading CYA, +/-0.1 pH at 25 degree C accuracy. Tungsten lamp. Silicon photocell with narrow band interference filter at 525nm light detector. 9V battery power supply. Auto-off: after ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder. 0 to 50 degree C (32 to 122 degree F); RH maximum 95 percent non-condensing environment. Chlorine method, adaptation of the EPA recommended DPD method 330.5. CYA method, adaptation of the turbidimetric method. pH method, phenol red method.