HI97757 Ozone Portable Photometer The HI97757 is an auto-diagnostic Ozone portable photometer that bene¡ts from Hanna’s® years of experience as a manufacturer of analytical instruments. It has an advanced optical system that uses a Light Emitting Diode (LED) and a narrow band interference ¡lter that allows for accurate and repeatable readings. The HI97757 meter measures ozone in water samples from 0.00 to 2.00 mg/L (ppm). The method is the DPD Colorimetric Method. Ozone is a widely used disinfectant in the treatment of drinking water, wastewater and swimming pools. The optical system is sealed from outside dust, dirt and water. The meter uses an exclusive positive-locking system to ensure that the cuvettes are placed into the holder in the same position every time. With the CAL Check™ functionality, users are able to validate the performance of the instrument at any time and apply a user calibration (if necessary). Hanna Instruments® CAL Check cuvettes are made with NIST traceable standards. • Advanced LED optical system · Innovative optical design that utilizes a reference detector and focusing lens to eliminate errors from changes in the light source and from imperfections in the glass cuvette. · LEDs have a much higher luminous efficiency, providing more light while using less power. They also produce little heat, which could otherwise affect electronic stability. • On-screen tutorial mode with animations · Guides users step-by-step through the measurement process • Waterproof and floating IP67 case • Unit of measure is displayed along with reading • The 128 x 64 Pixel LCD allows for a simplified user interfacer • Error messages on display · Alerts to problems including no cap, high zero, and standard too low • Battery status indicator • Auto-shut off CAL Check™ Validation Validate instrument performance at any time using CAL Check cuvettes made with NIST traceable standards. The CAL Check screen guides the user step-by-step through the validation process and user calibration. Reaction Timer Displays time remaining before a measurement is taken. Ensures that all readings are taken at the appropriate intervals for the test being performed. This ensures consistency between tests Good Laboratory Practice (GLP) Features Displays the last calibration date. Auto-Data Logging Data autolog helps users keep track of all measurements. Data is automatically saved every time a measurement is made. The data log can hold 200 individual measurements. When the data log is full, the meter will rewrite the oldest data point. 10 Photometers 10.96 | www.hannainst.com portable
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