10
Temperature Correction
The Importance of Temperature
Hot meter, cold sample, low readings
Keep meters out of direct sunlight,
particularly in vehicles.
If not, readings will be too low.
Cold meter, hot sample, high readings
Grain taken from a high temperature
drier must be cooled before testing.
If not, readings will be too high.
Temperature Correction
The meter calibrations are based on oven tests at 20°C. If the sample differs
from this temperature, Automatic Temperature Correction (ATC) corrects the
moisture reading automatically.
Even with
ATC on, the grain sample and the meter Grain Cell need enough time
to reach close temperature equilibrium. If there are extremes of temperature
between the sample and the instrument, check the Grain Cell temperature
reading a few times until it is constant, as follows:
Press and release
. Since the grain cell is clear, the meter will read ‘
U
-
R’.
While this is displayed,
p
ress
Λ
or
V
to put the meter in
o
C mode. When the
display shows , press to display the Grain Cell temperature.
ATC should always be on
To check if ATC is ON or OFF:
If ATC is ON
If ATC is OFF
X
ATC
(flashing)
ATC
(
NOT
flashing)
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