User manual HANNA INSTRUMENTS HI 98116

[. . . ] AGRITESTTM pH and EC Meter pH and TDS Meter AGRITESTTM 1 OPERATION · Turn the meter on and select the measurement mode: pH or EC/TDS. [. . . ] Batteries should only be replaced in a safe area using the battery type specified in this instruction manual. Loosen the upper screw and slide off the cover on the back of the meter. It is recommended to recalibrate the instrument whenever the batteries are replaced. RECOMMENDATIONS FOR USERS Before using these products, ensure that they are entirely suitable for the environment in which they are used. Operation of these instruments in residential area could cause unacceptable interference 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 instrument's EMC performance. To avoid electrical shock, do not use these instruments when voltage at the measurement surface exceeds 24VAC or 60VDC. To avoid damage or burns, do not perform any measurement in microwave ovens. pH CALIBRATION · Turn the meter on and set the switch to the pH mode. · Dip the probe in a pH 7. 01 buffer solution (HI 771P or HI 772P). [. . . ] 290 hours ENVIRONMENT 0 to 50ºC (32 to 122ºF) max 95% RH non-condensing DIMENSIONS 194x29x15 (7. 6x1. 2x0. 6") WEIGHT 70 g (2. 5 oz. ) ACCESSORIES HI 771P pH 7. 0 and 1. 41 mS/cm calibration solutions (20 mL each) and screwdriver (AGRITESTTM) AGRITEST HI 772P pH 7. 0 and 1500 mg/L calibration solutions (20 mL each) and screwdriver (AGRITESTTM 1 AGRITEST 1) HI 70300M Storage solution, 230mL HI 1282 pH and EC/TDS replacement probe AGRITESTTM is a Trademark of "Hanna Instruments" Visit our Internet Home Page: http://www. hannainst. com Authorized Dealer ISTRAGRIR2 07/97 [. . . ]