Kett PR-930 User manual
Wheat and Rice Flour Moisture Tester PR-930
Operating Manual
Table of contents
Contents of Package............................................................................. 3
Part Names............................................................................................... 4
Description of Display ......................................................................... 5
How to Place Batteries......................................................................... 7
Before Measurement............................................................................ 8
Measurement.......................................................................................... 9
Average Value.......................................................................................17
Storage....................................................................................................18
Specications........................................................................................19
Thank you for purchasing our Wheat and Rice Flour Mois-
ture Tester, PR-930. This tester can measure the moisture of
our by simple operation, but proper operation is necessary
for accurate moisture measurement.
Please read this operating manual carefully before use.
Contents of Package
Battery holder
Carrying Case
Operating Manual
Battery (AA size x4pcs and
under battery holder)
Cleaning brush (2 types)
Spoon with tweezers
Sampling tray
(2 pcs. for grains)
Sampling tray
(2 pcs. for ours)
Main unit
Metal plate (3 pieces)
3
4
Part Names
“POWER” button
“SELECT” button
Display Handle stop mark
“MEA.” button (Measure)
“AVE.” button (Average)
Testing Chamber
Handle
5
This tester adopts the auto power off
function. The power of the tester is
automatically turned o in approx.
5 minutes after turning on the power if
no operation is performed.
Use of backlight in the display section
allows users to see the display clearly
even in the dark.
Description of display
Battery Indicator
Moisture ContentNumber of measurement
Selection Indicator
6
Meanings of special marks The display may show marks as follows:
Battery mark
Normal Battery status is normal.
(displayed immediately after pressing the power switch)
Caution Battery is weak.
(displayed immediately after pressing the power switch)
Caution Battery is dead. Replace the batteries with new ones.
(displayed immediately after pressing the power switch and while using)
Over mark Caution Displayed when the measured result exceeded the upper limit of the
measurement range
Under mark Caution
Displayed when the measured result fell below the lower limit of the
measurement range, or the contact between the test sample tray and
the measuring unit of the main body was poor.
Description of display
•When measurement is performed with the sampling tray empty or the measuring unit is
poorly insulated due to condensation, high humidity, contamination, etc., the over mark,
under mark, or other meaningless numbers may be displayed. In such a case, clean the
measuring unit and dry it well in a natural way.
7
123
Take out the main unit
from the carrying case.
Take out the batteries
from under the battery
holder.
Open the battery box
on the back side of the
main unit, and place 4
batteries appropriately.
How to Place Batteries
8
Battery replacement
When the battery is running out, the
battery mark lights up at the left side of
the display. Replace all 4 batteries (AA)
with new ones.
Those batteries are gradually discharging
even when the tester is not used.
It is recommended to always use new
batteries.
Place batteries in
the correct polarity
Let the tester temperature be the
temperature of the test sample.
PR-930 is equipped with a temperature
compensation circuit. However the
test unit and samples are required
to be thermally stabilized before
measurement.
How to Place Batteries Before Measurement
9
All display immediately after pressing
the "POWER" button
“Wheat Flour” measuring state
Press the "POWER" button. All of the backlight, all characters on the display section,
and marks light up for 2 seconds.
The backlight goes out, and the tester becomes a standby state for measuring.
1
Measurement
10
2Put wheat our on the sampling tray
and shake the tray slightly to atten
the our.
Scoop wheat flour with the spoon
with tweezers and use the grip of the
cleaning brush to level off the rice
our.
3
Measurement
Table of contents
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