OPERATING PROCEDURE – PREHEATING
IMPORTANT: If the temperature of the grain sample is 40˚F more or less than
the temperature of the unit, preheat the tester for best results -- as follows:
PREHEATING PROCEDURE
1. Press and release ON-OFF button (B) to turn on tester. The display (C) will
show the name of the last grain tested at the top. Secure hopper (G) to the
top of the tester (see page 5 for instructions on securing hopper).
2. When the grain to be tested has been selected using the UP/DOWN arrows
(D) fi ll the grain hopper (G), and pull hopper slide (H) to drop the grain into
the test cell. Allow grain to sit in the hopper as short of a time as possible
since the hopper temperature will alter the grain temperature.
3. After 30 to 60 seconds, empty test cell and immediately refi ll with fresh grain.
4. Take a test with this fresh grain. Now the test cell and grain should be close
enough in temperature to give a good reading.
Note: The most accurate moisture measurements are achieved when the test
cell and grain temperature are similar.
A –Test Cell
B – ON-OFF Button
C – Display
D – UP / DOWN Arrows
E – BACK Arrow
F – ENTER / TEST Button
G – Grain Hopper
H – Grain Hopper Slider
I – Level Arm with Brush
Operation
I
C
D
B
F
E
D
Figure 1. AG-MAC PLUS Unit
G
4
A
H