# Linearity Measurement

This screen gives you a facility to capture the readings for an Instrument both Manually and Automatically. You can take simultaneous readings for all the parameters mapped for the Linearity Study.

Reading Mode and Station No. are displayed from the Linearity Mapping screen. The current user is displayed as the Operator Code.

For Manual Reading Mode, the Operator Code is used to identify by whom the readings were taken. Channel No. and Port Details (whether Serial Port or Parallel Port, Port No.) are not required, hence they are not displayed.

For Automatic Reading Mode, Port settings will be displayed based on the selected and connected instrument. If the instrument is connected to a serial port, then the Serial Port value is displayed as Port No. If the instrument is connected to a parallel port, then the parallel port number and the channel to which instrument is connected will be displayed as Port No. and Channel No. respectively.

A grid is provided for taking readings. The first column displays Trial numbers from 1 to ‘n’, where ‘n’ is the number of trials specified in the Linearity Mapping screen. The balance columns of the grid are for readings. The number of columns for readings is equal to the number of links mapped to the instrument. The readings columns display the "Part Code – Parameter Code" as the headings. e.g. If for the Dumore instrument and Part1, 3 parameters ID1, ID2, ID3 are mapped in the Linearity Mapping screen, then the Linearity Measurement screen is launched with the provision of three column for the reading values. The reading value column headers have names as Part1-ID1, Part1-ID2, and Part1-ID3 respectively.

If in the above case, Part2 is also mapped in the mapping screen then there are three more readings columns for Part2 links.

Existing readings will be displayed in the grid, but they cannot be changed.

The Start button is enabled only when the reading mode is Automatic.

Click Modify to make changes. You can modify Channel No. and Port No. only if the reading mode is Automatic. . If the instrument selected is connected to a serial port, then you can modify only Port No. If the instrument selected in the study is connected to a parallel port, then you can modify only Channel No.

# Taking Measurements

In Manual mode, you can enter readings directly into the grid for the parameters in the respective columns. You can modify readings only until they are saved.

In Automatic mode, select the row in the grid. Click Start. The readings are displayed in the respective parameter cells when you press the switch on the instrument. Readings displayed in this way cannot be modified.

Click Save to save readings after all readings for a particular trial have been taken. You cannot save only a part of the readings for the trial. A reading cannot be modified once it is saved.

Click Close to return to Linearity Mapping screen. The Last Trial Date, Last Trial Time and Trials Taken are updated.

See Also: Linearity Data Analysis