User manual HANNA INSTRUMENTS HI 721

[. . . ] Make sure that the instrument is not damaged. If any damage occured during shipment, please notify your Dealer. Each HI 721 meter is supplied complete with: · Two Sample Cuvettes and Caps · Six powder reagents for Iron High Range · 1 x 1. 5V AAA Battery · Instruction Manual 1. [. . . ] Once this indication is displayed, normal operation of the instrument will be interrupted. Change the battery and restart the meter. For more details about spare parts and accessories see "Accessories". Technical specifications: Range Resolution Accuracy Typical EMC Dev. Light Source Light Detector Method 0. 00 to 5. 00 ppm 0. 01 ppm ±0. 04 ppm ±2% of reading @ 25°C ±0. 01 ppm Light Emitting Diode @ 525 nm Silicon Photocell Adaptation of the EPA Phenantroline method 315B, for natural and treated waters. The reaction between iron and reagent causes an orange tint in the sample. 0 to 50°C (32 to 122°F); max 95% RH non-condensing 1 x 1. 5V AAA After 3 minutes of non-use and 10 seconds after reading. 81. 5 x 61 x 37. 5 mm (3. 2 x 2. 4 x 1. 5") 64 g (2. 25 oz. ). Environment Battery Type Auto-Shut off Dimensions w w w. c o m Weight Measurement procedure: · Turn the meter on by pressing the button. After all the segments are displayed, "C. 1", "Add" appears with "Press" blinking, the meter is ready. Tips for an accurate measurement · It is important that the sample does not contain any debris. · Whenever the cuvette is placed into the measurement cell, it must by dry outside, and completely free of fingerprints, oil or dirt. Wipe it throughly with HI 731318 or a lint-free cloth prior to insertion. · Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette. · Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost. · After the reading it is important to immediately discard the sample, otherwise the glass might become permanently stained. Accessories: REAGENT SETS HI 721-25 OTHER ACCESSORIES HI 740028 HI 731318 HI 731321 HI 731353 HI 93703-50 Reagents for 25 Iron High Range tests 1. 5V AAA batteries (4 pcs) Tissue for wiping cuvettes (4 pcs) Glass cuvettes (4 pcs) Caps for cuvettes (4 pcs) Cuvettes cleaning solution (230 mL). · Fill the cuvette with 10 mL of unreacted sample and replace the cap. Place the cuvette into the meter and close the meter's cap. 10 mL Recommendations for Users Before using these products, make sure that they are entirely suitable for your specific application and for the environment in which they are used. Operation of these instruments may cause unacceptable interferences to other electronic equipments, thus requiring the operator to take all necessary steps to correct interferences. Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC performance. [. . . ] Replace the cap and shake gently for 2 minutes until the powder is completely dissolved. Replace the cuvette into the meter. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. · Press and hold the button until the timer is displayed on the LCD. For additional information, contact your dealer or the nearest Hanna Customer Service Center. To find the Hanna Office in your area, visit our web site www. hannainst. com · The instrument directly displays the concentration of iron in ppm. [. . . ]