# Stability Mapping

Use this option to study the stability of an instrument over a period of time. This is done by mapping the instrument to a part and its corresponding parameters through different reading modes on a study date. You may view the variance in the stability of the instrument in the form of a chart or a report.

You can see details of the Instrument, Part and Parameter on which the readings will be taken. Reading mode, number of decimal places required for the readings, number of readings taken, date of study and last reading date and time for the instrument are also displayed.

The local machine will display all studies mapped on that machine. Once the study is closed by clicking Close Study, then that study is not displayed on the screen.

Click Add to add a new record. Select Instrument Code from the drop down list displayed from the Instrument master. Study Date displays the current date. Select a date not less than the current date, if required. Select Part Code from the drop down list displayed from the Part master. Select Parameter Code from the drop down list. This list contains only those parameters which have not been mapped to the selected instrument code, study date, part code and local machine.

Select Decimals by clicking the up or down arrows attached to the field. The default value is 0. Specify the Reading Mode – whether Automatic or Manual. It is set to Automatic by default.

Click Save to save the record. You can map only as many parameters as are specified for the interface code of the instrument.

Once a parameter has been mapped for an instrument, the same Reading Mode is set for all subsequent parameters.

Click Modify to make changes. You can modify Decimals and Reading Mode. If you change Reading Mode for a parameter, the same change is made for all other parameters mapped to that instrument code on that study date.

Click Measure if you wish to go to the Stability Measurement screen to record readings. You must map the total number of parameters which are specified for the interface code of the instrument before you can click Measure. Otherwise a message will be displayed and the screen will not be launched.

You can view Reports and Charts if one or more sets of readings have been entered for a study.

Click Report to view a report displaying details of the stability of the instrument over a period of time.

Click Chart to view a graphical image of the details of the stability of the instrument over a period of time. The Chart Selection screen is displayed. Select XbarR or XMR chart.

Click Close Study to close the stability study for an instrument. The data related to this study is then transferred to the Stability Data Analysis screen.

Click Delete to delete a record. You can delete a record for a Local Machine only if trials have not begun for it. For deleting a record, you must specify the Instrument Code, Study Date, Part Code and its corresponding Parameter by selecting them from the respective drop down lists.