35
Configuring Weighing Platforms
Procedure
y The target value of the required adjustment weight (5.000 kg in the example) is displayed as
a negative value.
t Place the required adjustment weight on the platform.
Note
If the calibration/adjustment sequence is set to automatic
("
Calibration/adjustment:Cal./adj. sequence:Cal.,
then auto adjust" menu, see “Function Allocation of the allocation of the J
Key for Calibration/Adjustment") and the adjustment weight consists of several pieces, then
they should be placed on the platform in series at short intervals.
When the weighing instrument has stabilized, the weight on the scale is accepted as the
calibration weight after a predefined interval, and the weighing instrument is
calibrated/adjusted with this weight.
The difference since the most recent span adjustment is not displayed; this value is output
only on GMP-compliant printouts.
y After a brief pause, the difference since the last span adjustment is displayed (calibration).
Note
This display only appears for the “
Cal. then manual adj." setting (see
previous note). If “
Cal. then auto adj." is active, the calibration/adjustment
procedure cannot be cancelled.
To stop the procedure after calibration and before adjustment takes place, press the ( key
(only if “
Cal. then manual adj." is active).
t Press J to adjust the scale (only if “Cal. then manual adj." is active).
y At the conclusion of the calibration procedure, the calibration weight is displayed as a
positive value.
When calibration/adjustment is complete, the GMP-compliant printout shown on the left is
generated. If the adjustment procedure is canceled (only calibration is performed), the last
two lines, “External calibration” and “Diff. + 0.000 kg” are not printed.
t Unload the scale.
t Press e to turn off the device.
t Press e turn the device back on.
y The Sartorius logo is displayed briefly, after which the device is in normal weighing mode.
3
If a serious operator error should occur during calibration (for example, if the menu setting
“
Cal. then auto adj." is active and the wrong calibration weight is placed
on the scale), the scale might completely fail to stabilize, which means it cannot show a
zero point.
In this case, select the “
Adjust without weights" menu and set the mean
sensitivity of the strain-gauge weighing beam to 2.0 mV/V.
Then re-adjust the scale.
See also “Adjust without weights."
The zero point is only displayed for a verified scale with d=e.
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