SX620_pH_Pen_Tester_使用手册说明书

AAPERAINSTRUMENTSSX620 pH Pen Tester Instruction Manual1.Brief IntroductionThank you for purchasing APERA INSTRUMENTS SX620 pH Pen Tester.This product is featured with reliableand accurate measuring performance with a single-button operation in a slim body,ideal for measuring pH inregular water solutions,including (but not limited to)hydroponics,aquaculture,water treatment,pools&spas,cooling towers,beverage making,body fluid (e.g.urine,saliva).The pH probe is replaceable and suitable fortest tube measuring and other small-volume sample testing.2.Specifications1)Measuring Range:-1 to 15.00 pH;Temperature:0 to 60'C2)Resolution:0.01 pH;Temperature:0.1'C3)Accuracy:+0.01 pH,+1 digit;Temperature:+0.5'C4)Automatic calibration:1-3 points calibration (pH 7.00,pH 4.00,pH 10.01)5)Power:CR2032 Cell Battery*26)Dimension and Weight:148*29*14mm/49g7)Waterproof rating:IP573.Instructions1)Calibration:Rinse the probe in distilled water and dap off excess water with tissue paper.Dip the probe in thestandard buffer solution pH7.00.Stir gently,hold still,and wait for the reading to become stable.Then press theCAL button for about two seconds until CAL appears on the screen.When the calibration value 7.0 flashes,thecalibration will finish after several seconds,and th e meter will return to measurement mode and the iM)will appear on the screen.2)Rinse the probe in distilled water,and dap off excess water with tissue paper.Then dip the probe in the otherstandard buffer solutions(pH 4.00 or pH 10.01)to complete calibration according to the steps in 1).Icon willappear when pH 4.00 is calibrated,and iconH)will appear when pH 10.01 is calibrated.3)Measurement:Rinse the probe in distilled water and dap off excess water with tissue paper.Dip the probe inthe sample liquid.Stir gently and let it stand still until you receive a stable reading.4)After measurement,rinse the probe with distilled water,dap off excess water,and put the protection cap backon.It's a good practice to pour a few drops of storage solution (3M KCL)that comes with kit into the protectioncap when storing the meter,since it will help keep the accuracy of the pH probe.5)Temperature Unit Switch:When meter is turned off,hold the CAL button until the meter reboots and then thetemperature unit will be switched('C-'F)4.Notes1)The tester should be calibrated at least once in a week.Calibrate one point with pH 7.00 buffer solution for testsrequiring general accuracy (>=0.1pH).Calibrate two points with pH 7.00 and pH 4.00 buffer solutions for tests ofacidic solutions(measurement value is less than pH7.00).Calibrate two points with pH7.00 and pH 10.01 buffersolutions for tests of alkaline solutions(measurement value is more than pH 7.00).If the measurement range isbroad,calibrate three points with pH 7.00,pH 4.00 and pH 10.01.To ensure the reliability of calibration,pHstandard buffer solutions should be replaced after 10-15 times of calibration.