HI97729 · HI97739 Fluoride, Low and High range Portable Photometers • 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. • CAL Check™ · 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. • 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 • Built-in timer · Built-in reaction timer that ensures consistency between tests. • Error messages on display · Alerts to problems including no cap, high zero, and standard too low • GLP data · Displays the last calibration date. • Auto logging • Battery status indicator • Auto-shut off Signi¡cance of Use Fluoride is best known for preventing tooth decay. Water authorities often add uoride to drinking water to maintain approximately a 1.0 mg/L (ppm) concentration. Fluoride can be found naturally in groundwater, particularly if a reservoir is in close proximity to seawater. While uoride does help prevent tooth decay, too little can be ineective while too much can cause staining of teeth. Specifications HI97729 Fluoride LR HI97739 Fluoride HR Measurement Range 0.00 to 2.00 mg/L (ppm) (as F - ) 0.0 to 20.0 mg/L (ppm) (as F - ) Resolution 0.01 mg/L 0.1 mg/L Accuracy @25°C (77°F) ±0.03 mg/L ±3% of reading ±0.5 mg/L ±3% of reading Method adaptation of the EPA method 340.1 and SPADNS method adaptation of the SPADNS method Measurement System Light Source light emitting diode Bandpass filter 575 nm 575 nm Bandpass filter bandwidth 8 nm Bandpass filter wavelength accuracy ±1.0 nm Light Detector silicon photocell Cuvette type round 24.6 mm diameter (22 mm inside) Additional Specifications Auto logging 50 readings Display 128 x 64 pixel B/W LCD with backlight Auto-off after 15 minutes of inactivity (30 minutes before a READ measurement) Battery type / Life alkaline 1.5 V AA (3) / > 800 measurements (without backlight) Environment 0 to 50°C (32 to 122°F); 0 to 100% RH, non-serviceable Dimensions 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0") Weight 380 g (13.4 oz.) Ordering Information HI97729 and HI97739 are supplied with sample cuvettes (2), sample caps (2), plastic stoppers (2), 1.5V AA batteries (3), instrument quality certificate, and instruction manual. CAL Check standards and testing reagents sold separately HI97729C and HI97739C includes photometer, CAL Check standards, sample cuvettes (2), sample caps (2), plastic stoppers (2), 2000 µL automatic pipette with instruction sheet, 1.5V AA batteries (3), cuvette wiping cloth, CAL Check standard certificate, instrument quality certificate, instruction manual, and rigid carrying case. Reagents sold separately Reagents and Standards HI97729 HI93703-53 reagent for reducing chlorine concentration HI97729-11 CAL Check standard cuvettes for fluoride LR HI93729-01 fluoride LR reagents for 100 tests HI93729-03 fluoride LR reagents for 300 tests HI97739 HI97739-11 CAL Check standard cuvettes for fluoride HR HI93739-01 fluoride HR reagents for 100 tests HI93739-03 fluoride HR reagents for 300 tests See page 10.128 for standard reagents; see page 10.129 for CAL Check kits; see page 10.66 for general accessories 10 Photometers 10.83 www.hannainst.com | portable
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