To use the tool, select a desired data range and parameter(s). The tool can run on multiple sites/parameters, but review of the results may be confusing, so it may be preferable to use the tool with one parameter at a time at first. The filter fields could also be used to filter results for multiple site/parms.

Once selected, choose "Analyze" from the toolbar. The screen will show the number of points found that can be correlated with calibration data. The bottom part shows the current values and the proposed changes.

The changes depending on the modes set on the right part of the ribbon:

Adjust for Span-Deselect this if you only want to do a zero correction.

Sliding Scale- If span correction is adjusted, you may optionally choose to have the slope factor linearly interpolated between each cal (e.g., if the slope correction on cal#1 is 1.1, and the slope correction on cal #2 is 1.05, then the hourly data at the midpoint would have a slope correction of 1.075, the hour closest to cal#1 would be 1.1, the hour closest to cal#2 is 1.05, etc).

Appy Forward- If selected, cal corrections are applied using the calibration results going forward in time (default). If de-selected, corrections are applied going backwards from each calibration.

If you change the mode, you will need to select the "Analyze" button again to see the new proposed changes.

Once you are satisfied, you may click the "Apply" button to make the changes to the database. Any data changed will be marked with the 'z' (Cal Adjusted) data flag, and the data is locked from second calibration adjustments. If the user wishes to return to original, the user can use the Batch Edit function in the Average Data Editor to return the data to original form.