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Protimeter Grainmaster
5.
Press
to change display to
2=1
,
!
(
ATC
is now deactivated.)
6.
Press
to save this change and display
0=0
7.
Press
to exit.
Note:
It is recommended that the
ATC
is only be deactivated when using the ‘
Quickcheck’
to verify the calibration of the instrument (see section 6.0). Whenever
ATC
is
OFF
the
°C
or
°F
icon (as appropriate) is flashed as a warning while moisture measurements
are displayed.
5 Care and Maintenance
When not in use, store the
Grainmaster i
in a stable, dust-free environment and out of
direct sunlight. Remove the battery from the instrument if it is to be stored for periods of
more than four weeks, or when the low battery power symbol appears on the display.
Check the condition of accessories used with the instrument on a regular basis and replace
them if they become worn or damaged.
5.1 Grinder-Compressor
The Grinder-Compressor unit should be cleaned and lubricated at regular intervals,
especially when testing wet or oily crops that tend to clog the thread of the plunger spindle.
Follow the maintenance procedure as detailed in the following steps:
1.
Disengage the two halves of the Grinder-Compressor unit by twisting the yellow
locking ring counterclockwise and pulling apart.
2.
Open the blade retaining wings and lift out the plunger and blade assembly.
3.
Separate the blade from the plunger assembly and remove the yellow feeder ring from
inside the top half of the Grinder-Compressor unit.
4.
Clean the blade, feeder ring and both halves of the Grinder-Compressor unit with the
brush.
5.
Clean the thread of the plunger unit and ensure it spins freely. Lubricate with a light
oil.
6.
Replace the feeder ring in the top half of the Grinder-Compressor unit.
7.
Put the blade on the plunger assembly and reposition this unit in the bottom half of the
Grinder-Compressor unit. Clamp in place by closing the retaining wings.
8.
Slide the two halves of the Grinder-Compressor together, ensuring the location lugs
and plunger spindle are correctly aligned.
9.
Replace the yellow locking ring.