PH-012 Quality Purity PH Meter Digital Water Tester for Biology Chemical Laboratory 0.00-14.00pH Analyzer

Features Instant and accurate measurementCompact and portable designLarge and clear LCD backlightSupport 2 point pH6 86 pH4 pH10 calibrationAutomatic temperature compensation ATC The provided pH electrode tube can be easily replaced by the user It can be used in different industries and applications such as water sources environmental monitoring laboratories hydroponics aquariums swimming pools spas and food processing Specifications Range 0 00 14 00PHAccurancy ±0 2pHTemperature Compensation 0°C 50°CpH meter calibration 1 Immerse the pH electrode in a mixed phosphate standard buffer solution with a pH of 6 86 at 25°C and shake it gently 2 Use a small screwdriver to adjust the calibration potentiometer until the displayed value is consistent with the pH value of the standard buffer solution at ambient temperature 3 Insert the electrode into the standard buffer solution of pH4 00 potassium hydrogen phosphate benzene dicarboxylate or pH 9 18 borax 4 After about two minutes The displayed value should be within the error tolerance range compared with the pH value of the buffer solution Steps 1 Remove the protective cover 2 Clean the electrode of the pH meter with distilled water first And wipe the electrode dry with filter paper 3 Turn on the switch located on the battery compartment 4 Insert the pH meter into the liquid to be measured until the liquid is immersed in the immersion line If conditions permit the solution can be immersed slightly above