418. Probe Care and MaintenanceKeep the conductivity probe clean. Rinse the probe twice, and gently swirl it whileyou take readings. For best accuracy, soak a dry probe for at least 5 to 10 minutes orlonger before calibration. Rinse the probe with deionized or tap water before storing.Never scratch the platinum portions with a hard substance. Do not strike the probeagainst any hard surface.Do not make continuous contact with your solutions. Readings will rise over aperiod of time while you soak your probe.Do not immerse the probe in oily solutions. Clean the electrode thoroughly bystirring it in a mild detergent bath or isopropyl alcohol. Wipe the probe with a softtissue paper. Rinse thoroughly in tap water and then in deionized water. Recalibratethe meter after cleaning the probe.The probe features a removable probe guard to make cleaning easy.To remove probe guard:1. Grip yellow probe guard and twistclockwise. The locking notch will release.2. Slide probe guard off end of probe.locking notchtwist probeguard clock-wise to remove