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Protimeter Grainmaster
1.2 Crop Calibrations and Functions
Sixteen calibrations are pre-programmed into the
Grainmaster i
(see in Table 1 below):
Note:
Not all calibrations are for Ground samples. Also, some of the pre-programmed
calibrations are not available with the optional external Moisture and Temperature
Probe (see Section 3.1.)
Before measuring moisture and temperature of ground and compressed samples, as
detailed in Section 2 below, do the following:
1.
Enter the Setup Mode from the switched
OFF
state by pressing
while switching
ON
using
.
2.
Switch temperature display from
°C
to
°F
.
3.
Switch automatic temperature correction (
ATC
)
ON
or
OFF
. However, Protimeter
recommends that
ATC
is always activated when measure moisture levels in crops.
When
ATC
is
OFF
, the
°C
to
°F
icon, as applicable, is flashed as a warning while
moisture measurements are displayed.
2 Measuring Moisture and Temperature of Ground and Compressed
Samples
To take moisture and temperature measurements of 10 ml samples of crops, complete the
following steps:
1.
Ensure that no external probe is connected. Switch
ON
in internal measurement mode
by pressing and releasing
. If it is in the correct mode, the display will show H
2
O in
the top left-hand corner, three horizontal lines and the previously selected crop. If the
display shows
BALEPROBE or PROBE
(instrument is in external measurement mode)
or if a number is displayed, press
to switch to internal measurement mode and to
cancel the reading.
2.
Scroll to the required crop calibration (or 0-100 relative scale) by pressing
or
.
3.
Be sure the grain cell of the instrument is clean. If it is dirty, clean it with the brush.
4.
Place the grain cup (the matt aluminium ring) over the grain cell.
Table 1: Pre-Programmed Calibrations of Grains
Wheat
Canola
Coffee
Rice
Oats
Linseed
Soya (soybean)
Sorghum
OSR (oilseed rape)
Sunflower
Beans
Paddy
Barley
Corn (maize)
Peas
0-100 relative