Oakton pH 5 Instruction Manual

Also see for Ion 6+: Instruction manual Instruction manual

Contents

Oakton pH 5 Instruction Manual Manual pdf 18 page image

Instruction Manual pH 5+, pH 6+, Ion 6+-15-4. MEASUREMENT4.1 Taking Measurements1. Before measurement, rinse pH/ORP electrode or Ion Selective Electrode andtemperature probe with clean water to remove any impurities stuck onto the bodiesof probes.2. Power on the meter using ON/OFF key. Press MODE key to select your desiredmode of operation (pH, mV, Ion, or Temperature).3. Dip and stir both probes gently into an aqueous test sample, swirl gently and waitfor the reading to stabilise. Note the reading. Freeze the displayed if desired—fordetails refer to Section 4.3.4. Rinse probes with clean water before taking next reading or storage.4.2 Millivolt (mV) Reference Check (Ion 6+ only)The mV mode in Ion 6+ can be used for the diagnosis of ISE or pH electrode condition.Press MODE to access mV mode, the “mV” annunciator in LCD is displayed. Thedisplayed value shows the absolute mV value of ISE or pH electrode being measured.4.3 Holding a ReadingTo freeze or hold your displayed reading momentarily, press HOLD key once. The LCDdisplays ”HO” annunciator to indicate the HOLD function is activated.4.4 Releasing a Held ReadingPress HOLD key once again to deactivate the HOLD function or to release your frozenreading. The meter reverts to current measurement mode, and the “HO” annunciatordisappears from the LCD.