LaMotte 5 Series TDS Meter - Manual (Page 29)

PROBE CARE AND MAINTENANCE
Keep the conductivity probe clean. Rinse the probe twice before using. Gently
swirl the probe in the solution while taking readings. Do not immerse the
probe in oily solutions.
For best accuracy, soak a dry probe for at least 5 to 10 minutes or longer before
calibration.
The conductivity probe included with the meter features a removable probe
guard to make cleaning easy.
To remove probe guard:
1. Grip the yellow probe guard and twist clockwise.
The locking notch will release.
2. Slide the probe guard off the end of the probe.
Clean the electrode thoroughly by stirring it in a mild
detergent bath or isopropyl alcohol. Wipe the probe
with a soft tissue paper. Rinse thoroughly in tap water
and then in deionized water. Recalibrate the meter after
cleaning the probe.
NOTE: Remember to re-attach the probe guard prior to
taking readings. Failure to do so could result in
erroneous readings.
Rinse the probe with deionized or tap water before
storing. Never scratch the bands with a hard substance.
Do not strike the probe against any hard surface.
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