Kongskilde KA10 Instructions De Montage Et D'utilisation page 7

GB
Description
The weigher is designed to provide
continuous weighing of grain and
other granulated materials.
On correct use and installation the
weigher is capable of an accuracy
in excess of +/- 1%. It may not,
however, be used as scales for the
purpose of selling by weight.
The weighing hopper is divided into
two compartments. One compart-
ment es being filled, while the other
is being emptied.
The weigher has a capacity of up to
appr. 8 tons of barley per hour. The
capacity depends on the material to
be weighed.
Each compartment of the weighing
hopper has a capacity of appr. 26
litres. From factory the weigher has
been adjusted to weigh in batches
of 10 kg. The batches can be
changed to 6 and 12 kg.
Net weight without accessories:
30 kg.
Installation
The weigher must be placed in a
level position and on a firm founda-
tion. The weigher must be accessi-
ble from all sides for inspection and
cleaning. Any possible protection
against dust must be detachable
and in no way impede the accurate
performance of the weigher.
The weigher can weigh directly
from a silo. The flow to the weigher
must, howerver, be restricted, e. g.
by means of a shutter so as to
correspond with the capacity of the
weigher. The shutter is also used to
cut off the flow from the silo when
the weigher is not being used.
The weighed out material can fall
from the weigher directly into a silo
or via an outlet hopper (extra equip-
ment) into an auger or similar con-
veyor. The outlet should be dimen-
sioned so that the grain leaves the
weigher without loss of speed,
otherwise it will impede accurate
operation of the weigher.
If the material falls freely through a
long pipeline it will often have an
excessive flow velocity. This may
cause uneven distribution of the
material in the weigher and impede
accurate operation of the weigher.
For such pipe layouts an intermedi-
ate piece with baffles (available as
extra equipment) should be used to
restrain the grain flow and to pro-
vide even distribution of the grain in
the weigher inlet opening.
It is recommended to place a di-
verter valve under the outlet hopper
of the weigher if the outlet is con-
nected to a closed pipe system.
The diverter valve facilitates „stor-
ing up" the weighed material on test
weighing.
Setting up of requi-
red batch weight
From factory the weight content of
a batch has been adjusted to 10 kg.
If the material is so light that the
weighing hopper cannot contain 10
kg, it will be necessary to reduce
the batch weight by removing one
or more of the counter weights
mounted under the beam (A).
When weighing heavy materials the
batch weight can be increased by
adding more counter weights (extra
equipment).
The batches can be changed to 6
and 12 kg.
After having adjusted the batch
weight, carry out a test weighing.
Test weighing
Optimal use of the weigher is ob-
tained only when there are good
possibilities of carrying out test
weighings. See the paragraph „In-
stallation".
While the weigher is operating
under normal conditions, the grain
from two weigher tips are retained
(one from each compartment of the
weighing hopper), and these are
weighed on an accurate scale.
If the batch weight is too big, the
sliding weight (B) is moved towards
the middle of the weigher. If the
batch weight is too small, the slid-
ing weight is moved outwards (to-
wards the right). The test is being
repeated until an accurate result is
achieved.
Test weighing should be carried out
immediately after installation and
when changing from one type of
grain or material to another.
Furthermore, test weighing should
be carried out in case the through-
put capacity and the material flow
conditions are changed.
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