CAS CBW, Руководство пользователя

Страница: 33 / 83

34
2.5 Calibration Execution Menu
2.5.1 Calibration
Calibration is required to accurately weigh items with an electronic balance.
Calibration should be performed:
•
When the location of the balance is changed, even within the same
room.
•
When the room temperature changes considerably.
•
Periodically, according to the quality control plan of the user.
Terms used in this manual:
Span Calibration:
Adjustment of the balance to specifications using two
weight values; zero and an appropriate value for the
balance capacity.
Calibration Check:
Comparing the current calibration mass reading to the
calibration mass reading after the last span calibration.
PSC:
Span Calibration is performed automatically using the
built-in calibration mass when the balance detects a
temperature change that would affect weighing
accuracy.
Clock-CAL:
Span Calibration is performed automatically using the
built-in calibration mass at up to 3 specific, preset times
during each day. The user selects the times.
PCAL:
Procedure to calibrate the built-in calibration mass to an
external calibration mass standard. The PCAL
procedure is password protected.
Factory Default Settings:
CBX-K series
Calibration using the external weight. ( )
CBW-K series Calibration using built-in weights. ( )
The settings for the type of calibration can be changed with menu selection.
Section 2.6.1 "Selecting Standard Calibration Type."
Note:
The following displays may appear in the situations listed.
When it takes too much time to stabilize the balance.
When the zero point of the balance appears to have changed greatly.
When the balance calibration appears to have changed greatly or the
wrong weight is loaded on the pan during calibration.
In all of these situations, span calibration or calibration check is not
performed.
Refer to Section 4.4.2 “Error Display.