Rice Lake MC Series Mass Comparator, A&D Weighing - MC-30K - Manual (Page 19)

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Caution on using an external weight
The accuracy of an external weight can influence the accuracy of weighing. Select an
appropriate weight as listed below:
Select a mass for calibration and calibration test from the following table.
Model Usable calibration weight Adjustable range
MC-10K 2kg, 3kg, 4kg, 5kg, 6kg, 7kg, 8kg, 9kg, 10kg -0.150g ~ +0.159g
MC-30K 20kg, 30kg -1.50g ~ +1.59g
The calibration weight in bold type: factory setting
The calibration weight value can be adjusted within the range above.
Display
This indicator means "In process of measuring calibration data".
Do not allow vibration or drafts to affect the balance while the
indicator is displayed.
7-2. Automatic Self Calibration
Automatic self calibration due to changes in temperature
This function automatically calibrates the balance when the balance detects an ambient
temperature change. If GLP output is selected in the function table, the balance outputs the
calibration report or stores the data in memory. Automatic self calibration functions even if
the display is turned off (standby state). Refer to "8-1. Permit Or Inhibit" for the operation.
Caution
If something is on the weighing pan, the balance judges that it is in use and does not
perform automatic self calibration. To maintain the calibrated state, keep the
weighing pan clear while not in use.
Indicates that the balance detects a change in ambient temperature and
automatic self calibration will start. If the balance is not used for a few
minutes with this indicator blinking, the balance performs automatic self
calibration. The blinking duration depends on the environment.
Indicates that the balance is measuring calibration data. Do not allow
vibration or drafts to affect the balance while this indicator is displayed.
After calibration, the balance returns to indicate the previous display.
Note The balance can be used while the indicator blinks. But, it is recommended that to
maintain the accuracy, stop using the balance and confirm that there is nothing on the
pan and allow the balance to perform self calibration.