Checkweighing O - Sartorius combics 1 Operating Instructions Manual

Operating the Combics 2

Checkweighing O

When the Checkweighing application is
selected, you can check whether sample
weights correspond to a specified target
weight; i.e., whether the weight on the
weighing instrument is within a given
tolerance range. The tolerance range
is defined by upper and lower limits.
The result is displayed in the main
indicator, in the bar graph and by color-
coded LEDs.
Features:
– The target value can be taken over
as a weighed value from a weighing
instrument, and the tolerance limits
are defined as a perceptual deviation
from the target value. The following
percentages can be selected as the
deviation: 0.1%, 0.2%, 0.5%, 1%, 1.5%,
2%, 3%, 5% or 10%.
– The target value, lower tolerance
limit (minimum) and upper tolerance
limit (maximum) can be taken over
as weighed values from the weighing
instrument.
– Target and tolerance limits checked
during input; values must conform to:
Upper limit > Target > Lower limit >
1 digit
– Checkweighing range: either 30%
to 170% of the target, or from 10%
to infinity
– Application started automatically
with most recent application data
when Combics switched on
– Automatic taring
– Automatic printing
– Toggle the display between weight
and tolerances limits by pressing w.
When tolerances are displayed, weights
exceeding the tolerance limits are
shown with "LL" (too low) or "HH"
(too high).
– Digital input/output interface
– Info mode for display of tolerance limits
by pressing w (> 2 sec)
30
Checkweighing entails comparing
the current weight value to a defined
target. The target value has a tolerance
range which can be entered either as
an absolute value or percentage (menu
item 4.5).
– Entering the tolerance range as
an absolute value (weighed value)
(menu item 4.5.1):
Start initialization by pressing O;
the middle segments of the bar graph
flash to prompt the placement of the
weight on the weighing instrument.
Place the weight on the instrument and
press O to store.
The bar graph segment for the lower
limit flashes to prompt the weight for
lower limit. Place the weight on
the weighing instrument and press
O to store.
The bar graph segment for the upper
limit flashes to prompt the weight for
upper limit. Place the weight on the
weighing instrument and press O to
store.
– Entering the tolerance range as
a percentage (menu item 4.5.2):
A value for the percentage is shown in
the numeric display (lower right-hand
corner) together with the "%" sign.
Press r to change the percentage
value (0.1%, 0.2%, 0.5%, 1%, 1.5%, 2%,
3%, 5%, 10%).
Start initialization by pressing O;
the middle segments of the bar graph
flash to prompt the placement of the
weight on the weighing instrument.
Place the weight on the instrument and
press O to store. To can change the
percentage value for the tolerance limits
again before the target value is stored,
press r.
Before the new initialization, the
previous initialization values must be
deleted by pressing c.
Application Parameters: Checkweighing
3. 5. Minimum Load for Automatic Taring and
Automatic Printing
3. 5. 1 * 1 digit
3. 5. 2 2 digits
3. 5. 3 5 digits
3. 5. 4 10 digits
3. 5. 5 20 digits
3. 5. 6 50 digits
3. 5. 7 100 digits
3. 5. 8 200 digits
3. 5. 9 500 digits
3. 5.10 1000 digits
3. 7. Automatic Taring: 1st Weight Tared
3. 7. 1 * Off
3. 7. 2 On
3. 8. Start Application with Most Recent
Application Data when Combics
is Switched On
3. 8. 1 Automatic (on)
3. 8. 2 * Manual (off)
4. 2. Checkweighing Range
4. 2. 1 * 30% to 170%
4. 2. 2 10% to infinity
4. 3. Activate Control Line for "Set" as:
4. 3. 1 * "Set" output
4. 3. 2 Ready to operate
4. 4. Activation of Outputs
4. 4. 1 Off
4. 4. 2 Always active
4. 4. 3 Active at stability
4. 4. 4 * Active within checkweighing
range
4. 4. 5 Active at stability within the
checkweighing range
4. 5. Parameter Input
4. 5. 1 * Min, max, target
4. 5. 2 Only target with percent limits
4. 6. Automatic Printing
4. 6. 1 * Off
4. 6. 2 On
4. 6. 3 Only values within
tolerance
4. 6. 4 Only values outside
tolerance