User manual HANNA INSTRUMENTS HI 98204

[. . . ] · Rinse the bulb, platinum wire and liquid junction thoroughly with distilled water · Reassemble the compartment and the tester. · Fill the compartment with tap water. Water Test WATER TEST The "four-in-one" portable meter EN 50081-1 EN 50082-1 ON / OFF RANGE 4 pH 7 GENERAL DESCRIPTION The HANNA Water Test is a "four-in-one" portable meter designed for fast and accurate analysis and monitoring of water in biological applications, industrial wastewater, rivers, lakes, etc. It measures the main parameters in water analysis, namely, pH, oxidation-reduction potential (REDOX), conductivity and temperature. [. . . ] Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC performance. To avoid electrical shock, do not use this instrument when voltages at the measurement surface exceed 24 VAC or 60 VDC. To avoid damages or burns, do not perform any measurement in microwave ovens. Water Test DECLARATION OF CONFORMITY LIQUID CRYSTAL DISPLAY ON / OFF SWITCH Hanna Instruments Srl V. le delle industrie 12 35010 Ronchi di Villafranca (PD) ITALY herewith certify that the pH / ORP / Conductivity / Temperature meter ON / OFF RANGE RANGE SWITCH We 4 pH 7 OFFSET & SLOPE CALIBRATION TRIMMERS COVER BATTERY COVER Water Test has been tested and found to be in compliance with the following regulations: IEC 801-2 IEC 801-3 EN 55022 Electrostatic Discharge RF Radiated Radiated, Class B WATERTSTR1 03/96 MAXIMUM IMMERSION LEVEL IMMERSION LEVEL Date of Issue: 12-12-1995 D. Volpato - Engineering Manager On behalf of Hanna Instruments S. r. l. Stay in Touch with the Manufacturer ! BLACK COMPARTMENT · · · · · · · · · · · OPERATING INFORMATION Do not be alarmed if white crystals appear around the cap. This is normal with electrodes and they dissolve when rinsed with water. Take a sample of the water to be tested and pour into the black compartment of the Water Test. If you are scooping up the water with the black compartment, do not immerse above the maximum immersion level indicated. ON / OFF Turn the tester on by pressing the ON/OFF switch on the front panel. The tester will automatically default the temperature measurement indicated by the "°C" symbol on the display. RANGE Press the RANGE switch once to display the conductivity expressed in µS. Press the RANGE switch once more to display pH. Press the RANGE switch once again to display ORP expressed in mV. If the tester compartment is dry for more than 2 days, you will have to wait for about 5 minutes before taking pH measurements. In order to take more accurate pH and conductivity measurements, make sure that Water Test is calibrated for pH and conductivity before use. ON / OFF When the measurements are completed, empty the compartment, rinse with tap water to minimize contamination and switch the tester off by pressing the ON/OFF switch again. In order to have a fast response time during measurement, the compartment of the tester should be filled with tap water when the tester is not in use. For long term storage, the tester should be kept in the original box. [. . . ] 5 41 · Remove the screw on the right of the casing. Press the RANGE switch to display conductivity measurements and adjust the trimmer on the right of the casing until the display shows the corresponding conductivity reading at the noted temperature (e. g. Replace the screw after calibration. 10 15 16 17 18 19 20 21 50 59 60. 8 62. 6 64. 4 66. 2 68 69. 8 RANGE Water Test ON / OFF RANGE °C HI7031 °C (µS/cm) °F 71. 6 73. 4 75. 2 77 78. 8 80. 6 82. 4 84. 2 86 87. 8 µS HI7031 (µS/cm) Water Test ON / OFF RANGE 4 pH 7 pH CALIBRATION · Pour a small quantity of distilled water into the black compartment, rinse by shaking the compartment and then discard the content. [. . . ]