User manual HANNA INSTRUMENTS HI 93753

[. . . ] If this is not the case, contact your dealer or the nearest Hanna Customer Service Center. The "V" indicates that the battery voltage is getting low and the battery needs to be replaced. Change the battery to restart. PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipment. [. . . ] The amount of reagent is precisely dosed to ensure maximum repeatability. The meter has an auto-shut off feature that will turn the instrument off after 10 minutes of non-use. Light Emitting Diode @ 470 nm Adaptation of the mercury(II) thiocyanate method. The iron(III) present forms with thiocyanate an orange colored complex. The intensity of color is proportional to the chloride ion concentration. Light Detector Silicon Photocell Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing Battery Type/Life 1 x 9 volt/40 hours Auto-Shut off After 10' of non-use Dimensions 80 x 83 x 46 mm (7. 1 x 3. 3 x 1. 8") Weight 290 g (10 oz. ) REQUIRED REAGENTS Code HI 93753A-0 HI 93753B-0 Description Displacing Reagent Complexing Reagent Quantity 1. 0 mL 1. 0 mL REAGENT SETS HI 93753-01 Reagents for 100 tests and two 1 mL syringes HI 93753-03 Reagents for 300 tests and six 1 mL syringes OPERATIONAL GUIDE MEASUREMENT PROCEDURE · Turn the meter on by pressing ON/OFF. · Fill one cuvette (#1) with 10 mL of distilled water (up to the mark). ON OFF INTERFERENCES The pH of sample after addition of reagents should be about 2. Intensely colored samples will cause interference, therefore they should be adequately treated before performing the test. Suspended matter in large amounts should be removed by prior filtration. BATTERY REPLACEMENT Battery replacement must only take place in a non-hazardous area using a 9V alkaline battery. Detach the 9V battery from the terminals and attach a fresh 9V battery while paying SLIDE OFF attention to the correct polarity. Replace the battery and the cover. #1 #2 10 mL #1 · Fill another cuvette (#2) with 10 mL of sample (up to the mark). 10#mL 2 Note: for low chloride ions concentration, rinse the cuvette a couple of times with sample before filling it with 10 mL of sample (up to the mark). Note: for most accurate results, use two graduated pipettes to deliver exactly 10 mL of distilled water and 10 mL of sample to the cuvets. · Using the 1 mL syringe, add 0. 5 mL of HI 93753A-0 Displacing Reagent to each cuvet. · Replace the caps and mix each cuvet by turning the cuvette upside down for approximately 30 seconds. · Place the cuvet with the reacted distilled water (#1) into the instrument. ACCESSORIES · 2 syringes (1 mL), included in the HI 93753 reagents set. #1 ACCESSORIES REAGENT SETS HI 93753-01 Reagents for 100 tests HI 93753-03 Reagents for 300 tests TIPS FOR AN ACCURATE MEASUREMENT The instructions below should be carefully followed during testing to ensure best accuracy. · In order to maintain the same conditions during the zeroing and the measuring phases, it is necessary to close the cuvette to prevent any contamination. · Do not let the test sample stand too long after adding the reagents or accuracy will be compromised. · Whenever the cuvette is placed into the measurement cell, it must be completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI 731318 or a lint-free cloth prior to insertion. [. . . ] Operation of these instruments in residential area could cause unacceptable interferences to radio and TV equipments, requiring the operator to take all necessary steps to correct interferences. Any variation introduced by the user to the supplied equipment may degrade the instruments' EMC performance. To avoid damages or burns, do not perform any measurement in microwave ovens. Note: to dose exactly 0. 5 mL of reagent with the syringe, push the plunger completely into the syringe and insert the tip into the HI 93753A-0 Displacing Reagent bottle. [. . . ]