
8. Data Management
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MiniTest 2500 - MiniTest 4500
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The statistics are calculated from the mean value ( x ) of a block. The analysis of any series
appears on the display and on the print-out as follows:
N-Groups :
Number of blocks or groups
Every fifth measurement is confirmed with a long beep.
Statistics are being calculated from a minimum of 2 single values or 2 blocks offering six or 8
(including cp and cpk) provided limits have been set.
8.7 Taking a series of measurement with statistical calculation
Working in DIRECT mode (Press and hold Appl/Direct key):
1.
Switch on gauge and take readings. All readings will be automatically logged to the statistics
program.
2.
Remember to check whether calibration is required and/or if any redundant statististical values
need to be deleted. To recalibrate, simply overwrite the existing calibration.
To delete an existing calibration, proceed as follows.
Press the key “Stats“ and then “Clear“.
3.
To continue a series of measurements in DIRECT mode after the gauge had been switched
off, simply switch the gauge on again and continue to take readings.
Working in APPL-BATCH mode:
IF necessary, press APPL key to activate the APPL-BATCH mode. The number of the previously
activated APPL-BATCH memory is displayed. If necessary, select another APPL-BATCH memory
(see Section 3.4).
1.
To delete a measuring series including its statistics, press FUNC and CLEAR/STATS key.
2.
If necessary, enter new calibration values and tolerance limits (see section 5.3.1, 6 and 7). All
readings will be automatically logged to the statistics program.
3.
To continue a series of measurement in an APPL-BATCH memory after the gauge had been
switched off, simply switch the gauge on again and continue your series of measurements.
8.8 Deleting outliers or erratic readings
Deletion must take place immediately after an outlier orerratic reading has been taken (see also
section 9). Press Clear key once.
MEAN (
x
) :
Mean of mean values
ST.D (s)
:
Standard deviation (Mean
value)
KVAR
:
Variation coefficient (Mean
value)
MAX
:
Max. mean value of all blocks
MIN
:
Min. mean value of all blocks