Checkline FH Series User Manual

Page 34

8. Statistics

From Measure Menu press function key “Statistics“.

From Main Menu use arrow keys to select “Statistics” and press OK to confirm.

8.1 Statistical Parameters

8.1.1 Upper and lower specifications limits (USL and LSL)

Tolerance limits can be set as requested and offer you the following features:

Readings beyond the specification limits will be indicated by a signal tone and marked in

the statistics.

The process capability indices Cp and Cpk will be calculated according to the set

specification limits.

In the trend diagram and histogram, readings lying within the set specification limits will be

highlighted. This range will determine the real-time trend (only available with MiniTest 7400

FH).

The specification limits can be set in the “Configuration” submenu. .

Use arrow keys to go to “Upper spec. limit” and/or “Lower spec. limit”

Specify limits and measuring system (metric/imperial) as requested

via the alphanumerical input field. See also section 4.4.2

“Alphanumerical Entries”.

Complete your setting by pressing Function key “Ready”. The gauge

will check automatically whether your spec. limits are reasonable.

This is to prevent input errors such as entering a wrong measuring

unit. Press OK to confirm your changes.

Spec. limits can be deleted via the function key “Delete”.

Spec. limits can be set before or after readings have been taken.