User manual HANNA INSTRUMENTS NITRITE BROCHURE

[. . . ] Diazotization Method Easier to use and more accurate than chemical test kits Adaptation of EPA Diazotization method Accuracy ±4% of reading ±10 ppb 1 ppb resolution (200 points) Large, easy to read digits Auto shut-off Dedicated to a single parameter Designed to work with HANNA's powder reagents Uses 10 mL glass cuvettes Small Size, Big Convenience Weighing a mere 64 g (2. 25 oz. ), the Checker®HC easily fits into the palm of your hand or pocket Use for quick and accurate on the spot analysis Single button operation: Zero and Measure Operated by a single AAA battery SHOWN ACTUAL SIZE ACCURATE AND AFFORDABLE NITRITE ULR MEASUREMENT Nitrites are an intermediate form of nitrogen, produced when ammonia is converted into nitrate during the Nitrogen Cycle. As organic matter decays, it produces ammonia. [. . . ] This Checker®HC features an accuracy of ±4% of reading and uses an adaptation of EPA Diazotization method. The contoured style of this Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off. The HI 764 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Last, Place the vial into the HI 764 Checker®HC, press the button and read the results. It's that easy. WE DESIGN, MANUFACTURE, SUPPLY AND SUPPORT ALL OF OUR PRODUCTS. THAT'S 360° VALUE Over the past 30 years, HANNA has never failed to design fresh and innovative products. The new Checker®HC's are no exception. We are excited to introduce such high accuracy and ease of use in a small, modern design that fits in the palm of your hand. [. . . ] When you buy a HANNA product, you're not only buying the best value for your money, but you're also adding the benefit of HANNA's unsurpassed customer service and post-sale technical support. IT'S EASY TO MEASURE SAMPLES WITH THE CHECKER®HC "Zero" the Checker®HC with your unreacted water sample Add reagent to your water sample Place the vial into your Checker®HC Press the button and read the results. it's that easy! HIGH ACCURACY, AFFORDABLE PRICE SPECIFICATIONS Range Resolution Accuracy Light Source Light Detector Environment Battery Type Auto-off Dimensions Weight Method HI 764 (Nitrite ULR) 0 to 200 ppb 1 ppb ±4% of reading ±10 ppb @ 25ºC LED @ 525 nm Silicon photocell 0 to 50°C (32 to 122°F); RH max 95% non-condensing (1) 1. 5V AAA After 3 minutes of non-use 81. 5 x 61 x 37. 5 mm (3. 2 x 2. 4 x 1. 5") 64 g (2. 25 oz. ) P/L CHECKERHC_HI764_INC 1. 0 PRINTED IN USA Adaptation of EPA Diazotization method 354. 1. ORDERING INFORMATION HI 764 Checker®HC is supplied with (2) sample cuvettes with caps, (6) powder reagents for nitrite, (1) 1. 5V AAA battery and instructions. ACCESSORIES HI 731318 HI 731321 HI 731225 (4) Cuvette cleaning cloth (4) Glass cuvettes (4) Caps for cuvettes SHOWN ACTUAL SIZE REAGENTS AND STANDARDS HI 764-25 HI 764-11 Reagents for 25 tests (nitrite) Calibration standard kit (0 and 100 ppb nitrite) HI 93703-50 Cuvette cleaning solution, 230 mL [. . . ]