Rice Lake Explorer Series Toploader, Ohaus - Manual (Page 83)

EXPLORER BALANCES EN-81
4.14 Statistical Quality Control (SQC)
The Statistical Quality control (SQC) feature is useful during various types of process filling operations, to monitor
and/or control the process to eliminate under- and over-filling.
As samples are weighed and stored in the balance, a Trend Analysis is developed and can be displayed.
Up to 10 batches with up to 80 samples in a batch are visible for quality control purposes. Each batch of samples
is shown, with the maximum, minimum, standard deviation and mean values for each batch. An on-going
examination of the relative deviation of the samples along with other statistical data can be viewed.
The filling process operation can be effectively monitored by observing the results on the View Trace screen.
SQC collection can be done manually (Manual mode, requires key press after each step) or
automatically (Auto Mode, the weights are automatically recorded when stable).
In the upper left portion of the home screen, select SQC.
The SQC Home screen
Main Display Line
Second Display Line
Reference Fields
Application Buttons
Functions Application Icon
4.14.1 Edit Settings
Confirm the default values (Nominal, Inaccuracy, Imprecision,
Density, Atmospheric Pressure, Water Temperature, etc.)
are correct.
To view/edit the default values, touch the Edit Settings button.
The Settings screen appears.
Settings available: Nominal Target weight,
+Tolerance 1, –Tolerance 1,
+Tolerance 2, –Tolerance 2
Functions Available: Return to Application
To adjust the Nominal Target weight value,
touch the Nominal button.
A numeric input window appears.
Key in the desired Nominal Weight, then press 9.
The display returns to the previous screen with the new value
highlighted.