User manual HANNA INSTRUMENTS C 214

[. . . ] TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769. 0666 · Fax (03) 9769. 0699 e-mail: hannains@hannainst. com. au Instruction Manual China: Tel. (10) 88570068 · Fax (10) 88570060 e-mail: hannachina@vip. sina. com C 214 Multiparameter Bench Photometer for Wastewater Treatment Application Egypt: Tel. & Fax (02) 2758. 683 e-mail: hannaegypt@go. com. eg Germany: Tel. [. . . ] Ensure that the vial orientation respect to the holder is the same of the blank. · Press TIMER and the display will show the countdown prior to the measurement. Alternatively, wait for 3 minutes and press READ DIRECT. In both cases "SIP" will blink during measurement. For the program number, see the parameters reference table on page 17 or look at the list printed on the mask of the meter. · When the LCD displays "----", the meter is ready. On the secondary LCD "P1" will appear to inform that the first parameter measurement procedure (Ammonia LR) can be performed. · Press the PROGRAM M and PROGRAM L keys to select the desired parameter. 20 61 Phosphorus, Acid Hydrolyzable · Preheat the Hanna Reactor C 9800 to 150 °C (302°F). For correct use of the reactor follow Reactor Instruction Manual. Use of the optional HI 740217 safety shield is strongly recommended. Do not use an oven or microwave because leaking samples can generate a corrosive and possibly explosive atmosphere. · Remove the cap from a Reagent Vial. · After the desired program number appears on the secondary display, follow the measurement procedure described in the related chapter. · Select a new parameter measurement procedure by pressing the PROGRAM M and PROGRAM L keys. · Add exactly 5. 0 mL of sample to the vial, while keeping the vial at a 45degree angle. · Replace the cap and mix by inverting the vial a couple of times. Note: in the following measurement sections, a generic "P­ ­" will be placed on the secondary LCD instead of the exact related message (e. g. · Before performing a test read carefully all the instructions related to the selected parameter. · Insert the vial into the reactor and heat it for 30 minutes at 150°C. · At the end of the digestion place the vials carefully in the test tube rack and allow to cool to room temperature. Warning: as the vials are still hot, be careful in handling them. · Select the program number corresponding to Acid Hydrolyzable Phosphorus on the secondary LCD by pressing PROGRAM M and L. · Remove the cap from the vial and add exactly 2. 0 mL of Sodium Hydroxide (NaOH) Solution 1, 20 N, while keeping the vial at a 45-degree angle. · Replace the cap tightly and mix by inverting the vial a couple of times. This is the blank. Phosphorus, Acid Hydrolyzable 60 21 AMMONIA LOW RANGE SPECIFICATIONS Range Resolution Precision Typical EMC Deviation Light Source Method 0. 00 to 3. 00 mg/L (as NH3-N) 0. 01 mg/L ±0. 03 @ 1. 50 mg/L ±0. 01 mg/L Tungsten lamp with narrow band interference filter @ 420 nm Adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92, Nessler method. The reaction between ammonia and reagents causes a yellow tint in the sample. PHOSPHORUS, ACID HYDROLYZABLE SPECIFICATIONS Range Resolution Precision Typical EMC Deviation Light Source Method 0. 00 to 5. 00 mg/L (as PO43-) 0. 01 mg/L ±0. 06 @ 2. 50 mg/L ±0. 01 mg/L Tungsten lamp with narrow band interference filter @ 610 nm Adaptation of the EPA method 365. 2 and Standard Methods for the Examination of Water and Wastewater, 20th edition, 4500-P E, ascorbic acid method. A mild acid digestion converts condensed inorganic forms of phosphates to orthophosphate. [. . . ] Then the reaction between nitrate and the reagents causes a yellow tint in the sample. · Replace the cap tightly and shake the vials vigorously for about 30 seconds until all the powder is completely dissolved. REQUIRED REAGENTS Code Description Q. ty/test Q. ty/set * Digestion Vial 1 vial 50 vials --Deionized Water 0. 5 mL 1 bottle --Potassium Persulfate 1 packet 50 packets --Sodium Metabisulfite 1 packet 50 packets HI 93767-0 Total Nitrogen Reagent 1 packet 50 packets ** Reagent Vial 1 vial 50 vials * Digestion Vial identification: N, red cap. ** Reagent Vial identification: N, white cap. Note: Store the unused vials in their container in a cool and dark place. · Insert the vials into the reactor and heat them for 30 minutes at 105°C. Note: to obtain most accurate results, it is strongly recommended to remove the vials frome the reactor after exactly 30 minutes. [. . . ]