Checkweighing - Sartorius la series Operating Instructions Manual

Checkweighing

H
Purpose
This program is used to check whether
a sample corresponds to a pre-set
target value or is within a specific
tolerance range. In addition to the
display in the measured value line,
the results are shown on the bar
graph and can also be routed
through the interface port via control
lines for further electronic processing.
You can use the "Checkweighing"
application in combination with a
program chosen from Application 1
(e.g., counting, weighing in percent)
and one from Application 3
(totalizing, formulation, statistics).
78
Available Features
– Optional configuration in
the Setup menu for long-term
storage of target value and
tolerance limits
– Optional balance configuration
in Setup for automatically
initializing this application and
loading the values stored in long
term memory for the target value
and the upper and lower
tolerance limits when you turn
on the balance
– You can perform checkweighing
– without entering a target value,
but only upper and lower
tolerance limits;
– as differential checkweighing;
– with symmetric or asymmetric
limits which can be entered
as percentages
– Enter target value and limits by
placing a load on the balance or
using the numeric keys
– Control in entering target and
tolerance values, so that the upper
limit ≥ the target ≥ the lower limit
≥ 1 display increment
– Accuracy of a weight readout or
keyboard input as target/tolerance
values corresponds to the display
accuracy
– Optional balance configuration in
the Setup menu for automatic
output to the interface port (print
application parameters) of target
value and tolerance limits when
initialization is completed
– Control range for the balance's
data output port lines is 30% to
170% of the target value
– Optional configuration in the
Setup menu for activation of control
lines dependent on weight value
(weight value within control range,
stability reached)
– Toggling the display between
weight readout and control
(checkweighing) display by
pressing the corresponding soft
key. If the weight value exceeds
tolerances, the measured value
line shows the weight while the
control display shows "LL" for
"too low" or "HH" for "too high."
– Press the soft key to display
Show
target value and tolerance limits in
the text line after initializing the
application.
– Weight value in bar graph
displayed in relation to upper
and lower limits and target value.
– "OK" value counter displayed in
the text line (e.g.,
n = 4
This counter shows the number
of measured values that lie within
the tolerance range.
– Optional automatic printout of
weight value when it is within the
control range at stability
After an automatic printout, the
balance is blocked. Before you
can generate the next printout,
you must unblock the balance by
unloading it (weight must be under
30% of the target) or by placing
a load on the balance (bringing
the weight up to at least 170%
of the target).
– Press c to delete the
initialization parameters and end
the Checkweighing program
Factory Settings
Activation of port lines:
Within
checkweighing range
Type of checkweighing input:
Target, minimum,
maximum weight
Weight display mode:
Absolute value
Automatic printout of OK values:
Soft Key Functions
Begin input of target and
Param.
tolerance values
Display target and
Show
tolerance values in turn
during checkweighing
Toggle to control display
LLHH
("LL" for too light and
HH" for too heavy)
Display difference
Diff.
between current value
and target
Display net weight
Net
).
No