# Collecting Data For Pre-Control Chart

If in Work Order QAP for parameter, Pre-Control Chart is selected, then this screen for accepting reading will be launched on click on Measure button of Local Monitoring screen. The screen displays details of selected job and pre control chart.

Readings can be entered in reading text box. If you enter 5 reading it will be plotted and validated as follows.

Algorithm followed for validation of setting

Approve setting when 5 consecutive readings are in GREEN zone.

If one is in YELLOW zone, check another 5 readings.

Follow step 1 and approve or adjust if one reading is in YELLOW zone.

If 2 readings are in YELLOW zone Adjust and Repeat step 1.

If one is in RED zone display message stop and repeat step 1.

A thick vertical line separates the Setting region from Run region. Setting region accommodates first 5 readings, which are used for a successful setting. Once setting is approved then readings can be taken for validating runs.

Algorithm followed for validation of Run

At a time only one reading will be entered and this reading will be compared with the previous reading to check for the run.

Displays the messages ADJUST THE PROCESS if the current entered reading and previous reading are in YELLOW Zone.

Display the message STOP THE PROCESS if the current entered reading is in RED zone.

Displays the message CONTINUE if current reading and previous are in GREEN zone or one is in YELLOW and Another one is in GREEN zone.