Sper Scientific 850037 Large Display Conductivity Pen - Manual (Page 17)

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5. Rinse the probe tip with de-ionized or
distilled water before use to remove
any impurities adhering to the probe. If
the probe tip is dehydrated, soak it for
30 minutes to prevent contaminants
from slowing down the measurement
and accuracy.
6. Immerse the probe tip completely into
the sample. Ensure that there are no
air bubbles trapped in the probe slot.
Gently stir the probe to remove air
bubbles, ensuring that the probe tip
is submerged while stirring.
7. Stir the probe gently to create a uniform
sample. Wait about 15 minutes for the
reading to stabilize.
8. The unit of measure will flash on the
LCD to indicate that the pen is in
Measurement Mode. When the
reading is stable, the unit of measure
will stop flashing.
Hold Function
1. Press
HLD to freeze the current
readings on the display. “Hold” will
appear on the LCD.