Portable Digital PH Meter PH-012 High Precision pH Tester Water Quality Detector 0.00-14.00pH Analyzer for Lab Water Hydroponics

Good luck with your favorite purchasesPortable Digital PH Meter PH-012 High Precision pH Tester Water Quality Detector 0.00-14.00pH Analyzer for Lab Water Hydroponics PH-012 portable pH meter is a succinct, survey stable and accurate meter.Though this instrument is very easy to use, but we advise you to read the instructions manual attentively before using the instrument. Specification Name:PH-012 PH Meter Range:0.00~14.00PH Resolution:0.01PH Accuracy:±0.05PH Operating Temperature :0~50'C Automatic Temperature Compensation:0C~50℃ Power Supply: DC 9V（Not included） Dimensions:150mmx70mmx25mm PH Calibration 1)Pour a small quantity of pH6.86, pH4.01and pH9.18 solution into clean beakers. 2)For a particularly accurate calibration, it is advised to use two beakers for each buffer solution; the first is to be used for rinsing the electrode, the second is to be used for the calibration. In this way, the risks of contaminating the buffer solution are reduced to a minimum. 3 )Switch on the instrument. 4)lmmerse the electrode in a pH6.86 buffer solution, and gently shake it. 5)Allow the reading to stabilize and with a small screwdriver turn the calibration trimmer(PH7) until the display shows "6.86". Rinse the electrode with distilled water. 6)lmmerse the electrode in a pH 4.01 buffer solution, and gently shake it. 7)Allow the reading to stabilize and with the small screwdriver turn the calibration trimmer(PH4) until the display shows "4.01".Rinse the electrode with distilled water. 8)Immerse the electrode in a PH9.18 buffer solution. Waiting for the reading stabilized until it displays 9.18. 9)The calibration for the instrument is now complete.