Hanna Instruments Portable Low Range Nitrite Photometer Kit

The Hanna Instruments HI 96707C nitrite low range portable photometer measures nitrite content in water in the low range, has a calibration check function, automatic shutoff, an LCD screen, and on-screen instructions. The calibration check function (CalCheck) validates instrument performance. An automatic shutoff feature turns the meter off after 10 minutes of nonuse in measurement mode, and after one hour of nonuse in calibration mode, to help extend the life of the meter. Automated instructions on the LCD screen aid in routine operation. The meter is splashproof, and the lamp and filter are protected from dust and dirt by a transparent cup, making it suitable for field applications. The device uses a positive-locking system to help ensure consistent positioning of the cuvette. Nitrite photometers measure nitrite content in drinking and surface water samples, and are commonly used in the water quality and industrial waste industries.

Range is 0.000 to 0.600 mg/L. Accuracy is + or - 0.020 mg/L, + or - 4% of reading at 25 degrees C, with a resolution of 0.001 mg/L. Dimensions are 192 x 104 x 69 mm/7.6 x 4.1 x 2.7 inches (H x W x D), and the meter weighs 360 g (12.7 oz.). (H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.) Power source is a 9V battery (included). A reaction between the reagent (sold separately) and nitrite in a sample causes a distinct pink color to appear, which is measured by the photometer. The meter uses an adaptation of the United States Environmental Protection Agency (USEPA) diazotization method 354.1.

Photometers measure the light intensity of solutions or surfaces. For solution testing, a sample and reagent are placed in a cuvette in the photometer. The photometer transmits light through the cuvette, and compares the intensity of the light that shines through to the amount of light that shines through a blank cuvette. The meter uses the difference to calculate the concentration of the test element. For surface testing, a surface is illuminated with white light, and the photometer measures the luminosity of the reflected light. Photometers are commonly used in water quality, agricultural, horticultural, and industrial applications to measure the amount of minerals and chemicals in samples, and for checking water and beverages, such as beer and wine, for consistency.

Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) 9001 standards.

What’s in the Box?

• Hanna Instruments nitrite low range portable photometer HI 96707C
• Cuvettes and caps (quantity 2)
• Cloth for wiping cuvettes
• 9V battery
• Scissors
• Instrument quality certificate
• Instructions
• Rigid carrying case