Benutzerhandbuch Menü

Benutzerhandbuch

Individual values chart

The Shewart principle is used whenever following a process supported by a control chart.
Principe de Shewart
The process is considered perfectly centered and the only possible variation is due to short term procedure variations. If the process is actually perfectly centered, in this case 99;7% of the parts will be produced inside the procedure dispersion, i.e. + 3σ with normal distribution. The defined limits will thus will be called control limits.
When a part is produced two situations can occur:
  • Within control limits: whenever a part is measured that falls within control limits, then the hypothesis of the perfectly centered process is completely verified. No further action is required.
  • Outside control limits: whenever a part is measured that falls outside of the control limits, then the hypothesis of the perfectly centered process is not verified. The process must, therefore, be adjusted.

Ellistat use

To open an individual values chart, enter the data in only one column and open the averages chart. As the data has only been entered in one column, the chart that appears will be an individual values chart.
Ellistat exemple

Eine Komplettlösung für Industrie 4.0

8 statistische Module

trial

Versuch

0

30 Tage

Testen Sie es kostenlos

APC

SPC

Kontrolle

Analyse

check

30 Tage

check

Alle Funktionen von Ellistat

check

1 Benutzer

Technische Unterstützung und Wartung inbegriffen

student

Student

0

1 Jahr

Zur Kasse

Analyse

check

1 Jahr

check

Alle Funktionen von Ellistat

check

1 Benutzer

check

Lizenz für Studenten, die über einen gültigen Studentenausweis verfügen

Technische Unterstützung und Wartung inbegriffen

standard

Standard

49

pro Benutzer pro Monat

Zur Kasse

Analyse

check

Lizenz wird alle zwei Monate erneuert

check

Alle Funktionen von Ellistat

check

Unbegrenzter Benutzer

check

Technische Unterstützung und Wartung inbegriffen