WP
4
PotentiaMeter
Menus
23
• Before sampling, wait for approximately 30
minutes to let the chamber’s temperature to
stabilize after turning it on.
• The instrument may have a difficult time
measuring the temperature of a sample that
is being cooled if the ambient temperature
is high.
• When changing samples, the opening and
closing of the drawer may cause the temper-
ature in the chamber to fluctuate. Therefore,
make sure to take more than one reading
per sample to ensure that the temperature
and
water potential
are stable between
readings.
• Never place a hot or warm sample in a
cooled chamber, because condensation will
form inside the chamber, causing errors in
reading.
Sample Equilibration Screen
To see the temperature difference between your
sample and the WP4, press the lower right button at
the main menu. This screen can only be accessed
when the drawer knob is in the OPEN/LOAD posi-
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