[. . . ] Champ HI 98106 ® Pocket-sized pH Meter Champ is a rugged pH tester with replaceable electrode and renewable reference junction. The instrument can be calibrated at one point by the user, simply acting on the calibration trimmer. DO NOT USE DISTILLED OR DEIONIZED WATER FOR STORAGE PURPOSES. [. . . ] Note: Note the calibration can be performed at pH 4. 0, pH 7. 0 or pH 10. 0, according to the different applications. · Turn the Champ on with the ON/ OFF switch located on the top of the meter. · Immerse it in the solution to be tested without exceeding the maximum immersion level. · After use, rinse the electrode with water to minimize contamination. · Store the electrode with a few drops of storage (HI70300) or pH7 (HI7007) solution in the protective cap. · Always replace the protective cap after use. HI 7 030 0 BATTERY REPLACEMENT: When display fades the batteries must be replaced. Slide off the battery compartment cover and replace all four 1. 5V batteries while paying attention to their polarity. Batteries should only be replaced in a nonhazardous area using the battery type specified in this instruction manual. Manufacturers since 1978 Champ HI 98106 ® Pocket-sized pH Meter SPECIFICATIONS: 0. 0 to 14. 0 pH RANGE 0. 1 pH RESOLUTION ACCURACY (@20 C/68 F) ±0. 2 pH ±0. 1 pH TYPICAL EMC DEVIATION CALIBRATION Manual, at 1 point through trimmer 0 to 50 C ENVIRONMENT (32 to 122 F); 95% RH 4 x 1. 5V alkaline (included) BATTERY TYPE approx. 800 hours BATTERY LIFE of continuous use 175 x 41 x 23 mm DIMENSIONS (7. 9 x 1. 8 x 1") 78 g (2. 7 oz. ) WEIGHT ACCESSORIES: Spare electrode HI 73106 pH 4. 01 & 7. 01 calibration kit HI 77400P (5 x 20 mL, each) pH 7. 01 calibration kit HI 77700P (10 x 20 mL) HI 770710P pH 7. 01 & 10. 01 calibration kit (5 x 20 mL, each) pH 4. 01 buffer solution HI 7004M (230 mL bottle) pH 7. 01 buffer solution HI 7007M (230 mL bottle) pH 10. 01 buffer solution HI 7010M (230 mL bottle) Storage solution (230mL) HI 70300M Electrode cleaning solution HI 7061M (230mL bottle) Calibration screwdriver (20 pcs) HI 731326 Visit our Internet Home Page: http://www. hannainst. com ELECTRODE REPLACEMENT: The electrode can be easily replaced in the following way: · Slide off the battery cover. · Remove the screw on the back of the Champ located below the battery compartment and slide off the whole internal part of the tester. Internal circuit and electrode: IS98106-R3 09/01 · To remove the electrode proceed as follows: Remove the fastening screw on the front (1) to loose the electrode. The internal circuit is connected to the electrode through two wires (one for the glass sensor and one for the reference). [. . . ] · Reinsert the battery compartment cover. · Perform a new calibration before using the Champ again. ONE YEAR WARRANTY & SERVICEABLE: Covered by one year warranty against defects in workmanship and materials, this tester is now completely serviceable. Contact your dealer for further information. The Champ is in compliance with the CE directives EN 50082-1, EN 50081-1 and EN 61010-1. Champ® is a registered Trademark of "Hanna Instruments" [. . . ]