Adjust offset and gain

Your monitor's software allows you to adjust the offset and gain from two places: Manual Entry and Calibration.

Both are accessed by entering the Calibration and Service app from your Aeroqual Connect of Aeroqual Cloud home screen.

The Manual Entry area displays offsets and gains for all your configured sensors.

These are displayed in a Calibration parameters table, along with any additional calibration parameters such as the a value.

The a value is associated with the NO2 channel (if you have the Ox/O3 system).

To change the offset, gain or a value for a particular sensor, simply click the cell to select the current value.

Type in your new value and when the Save button appears, select it.

If you're using the Manual Entry area to upload offset adjustments, you need to manually calculate your new offset using the equation shown before making any changes.

The Manual Entry area also shows real-time measurements for all your configured sensors, as well their average and standard deviation.

To show more or less readings, and therefore alter the associated average and standard deviation, select a different display option from the drop-down.

The Calibration area of the Calibration and Service app allows you to focus on a single gas channel while that gas is being calibrated.

Select Gas from the drop-down list in the System panel.

Click the channel of interest from the list of gas modules.

View the response of the gas in a real-time line graph. By default, the graph shows the last 60 readings.

Hover your cursor over any point in the line to view the measurement recorded for that minute.

To decrease the increments on the Y axis (and therefore magnify your graph), click and drag your mouse over the area you want to magnify.

To zoom back out, click the Zoom out icon on the toolbar.

Click the Recommend button to calculate the offset or gain for your selected gas.  

Click the Apply button to apply the calculated offset or gain.

When the confirmation message appears, select the tick in the title bar.

The Calibration area also includes a table that shows the average and standard deviation for the last 10 measurements.