Checkweighing - Sartorius FC Operating Instructions Manual

Checkweighing

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 be routed through
the interface port via control lines
for further electronic processing.
You can use this application in
combination with any program chosen
from Application 1 (such as counting,
weighing in percent) and one from
Application 3 (totalizing, formulation,
statistics).
Available Features
– Optional configuration in the Setup
menu for long-term storage of target
value and tolerance limits
– Optional scale configuration in
the Setup menu 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 scale
– 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 the target value and limits by
placing a load on the scale or using
the numeric keys
– Control parameter 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
H
– Optional scale configuration in the
Setup menu for automatic output to
the interface port (print application
parameters) of the target value and
tolerance limits when initialization
is completed (... Auto print upon
initialization: All values).
– Control range for the scale'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 checkweighing range,
stability reached)
– Toggling the display between weight
readout and checkweighing display by
pressing the corresponding soft key.
If the weight value exceeds tolerances,
the line for measured values shows the
weight while the checkweighing display
shows »LL« for »too low« or »HH« for
»too high.«
Show
– Press the
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« transaction counter displayed in
the text line (e.g.,
(Checkweighing: Automatic printout
of OK values: Yes). This counter shows
the number of measured values that lie
within the tolerance range.
– Optional automatic printout of
the weight value when it is within the
control range at stability
After an automatic printout, the
printing of OK values is blocked. Before
you can generate the next printout, you
must unblock the scale by unloading
it (weight must be under 30% of the
target) or by placing a load on the
scale (bringing the weight up to at
least 170% of the target).
– Initialization parameters are overwritten
Param.
after the
pressed
– 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
Param.
Show
LLHH
Diff.
soft key to display
Net
Start
Auto Print Checkweighing
With the over/under checkweighing
application, you can have the result
printed automatically as soon as the
n = 4
), if selected weight lies within a defined range.
N
Setp +
Min
Max
N
N:
Setp:
Min:
Max:
N:
soft key has been
No
Begin input of target and
tolerance values
Display target and toler-
ance values in succession
during checkweighing
Toggle to checkweighing
display (»LL« for too light
and »HH« for too heavy)
Display difference between
current value and target
Display net weight
Start checkweighing
+ 153.00 g
180.03 g
+ 160.05 g
+ 200.06 g
+ 165.14 g
Net weight
Target weight
Lower limit
Upper limit
Printout of "OK" values
65