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Procedure:
To initiate parameter <P6.11 GLP AUTOTEST > press
button. The balance software launches
the GLP autotest procedure and it is carried out automatically from now on to the end.
You can stop the procedure at any time by pressing
button of the GLP process window.
Once the procedure is finished, the value of standard deviation of all measurements is shown in the
main display, and message <RESULT> in the bottom line, the final report is printed out automatically
(as shown above). It is possible to print out the report again by pressing
button.
Report is not saved, therefore when abandoning this level, it is deleted from the balance volatile
memory.
To abandon the window press
button and the program returns to the main menu. To return to
weighing, press
button repeatedly.
7. ADJUSTMENT
In order to ensure the highest weighing accuracy, it is recommended to periodically introduce a
corrective factor of indications to balance memory, the said factor must be referred to a mass
standard. In other words, balance adjustment shall be performed from time to time.
Adjustment should be carried out:
•
Before the beginning of weighing procedure,
•
If long breaks between following measuring series occur,
•
If temperature inside the balance changes more than: 1°C or 2°C for AS series balances or 2°C
for PS and APP series balances.
Types of adjustment:
•
Internal automatic adjustment
•
Manual internal adjustment
•
Adjustment with an external weight of declared mass which cannot be modified or of any mass,
but not lower than 30% of maximum range.
CAUTION!
In case of verified balances (with an internal automatic adjustment system) only automatic internal
adjustment and manual internal adjustment are available. Remember to carry out the adjustment
process when there is no load on the pan! When the weighing pan is loaded, command <RANGE
EXCEEDED> is displayed. In such a case remove the load and restart the adjustment process. Adjustment
process can be aborted if necessary by pressing Esc button at any time during the process.
7.1. INTERNAL ADJUSTMENT
Adjustment process can be initiated automatically and manually.
Manual means of activating adjustment procedure is achieved by pressing
button. System of
automatic adjustment will carry out the process fully automatically and will inform the user on
successive process stages.
Cycle of automatic adjustment process:
•
Balance software detects the necessity of carrying out adjustment and signals it by displaying a
thermometer or clock pictogram and <Cal> sign at the top of the display, about 2-minute long
time interval within which weighing procedure can be completed takes place,
•
As the 2-minute long time elapses, balance display indicates message
CAL_30
and starts counting down from 30..29..28 to 0 (indicated value is the counter),
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