file:///D|/bihecpdf/.PHPH.htm[2010-1-91:01:00]pH-pH-——pHpHISFET11FiveEasypH(FE20)pH0.00-14.00pH0.01pH±0.01pHmV±1999mV±1mV0-100pH3//FiveEasy(FE30)0.00μS/cm–199.9mS/cm0.01μS/cm–0.1mS/cm±0.5%TDS0.00mg/L–199.9g/L0.01mg/L–0.1g/L±0.5%0-100//1SevenEasypHS20.PHPHfile:///D|/bihecpdf/.PHPH.htm[2010-1-91:01:00]pH0.00-14.00pH0.01pH±0.01pHmV±1999±1-5.0-105.0pH3///SevenEasyS300.00-500mS/cm±0.5%TDS0.00mg/L-500g/L0.00-80.00ppt0.00-20.00MW×cm/-5.0-105.0///SevenMultipHS40pH-2.000-20.000pH0.001/0.01/0.1±0.001pHmV-1999.9-1999.9±0.1mVATC-5-130MTC-30-130S40KpH/pH©2005-2009()9892006200031021-60896520,13661956095@bihec.com