Overview

To allow users to have complete control over how they manage their data, sensemetrics now offers a new way to update configuration parameters for devices and sensors. 

Updates made from the Edit Configuration page are done the traditional way of saving settings to the sensor. Any change applied here will update the property and apply it to the entire data set of the sensor. This is referred to as a Universal Update.

Updates made from the new Revision Management tab utilize a new concept that is meant to compensate for field related changes. First, the user will define the date to apply the record change. Once the configuration settings appear, any changes made will not overwrite the property universally but will keep the original value stored for the data before date selected and only update the value for sensor data after the date chosen. This type of change is referred to as a Revision 

**Important Note** Revisions will be slowly applied to new sensor parameters. Parameters that use Revisions are:

Sensor Depth

Collar Elevation

Easting, Northing and Height Offset

How to Use Revision Management

Click on the Revision Management tab use the left hand side navigation.

• Any current Revision will appear as blue dots on the Revision Management Timeline. 
• Click on a Revision to open up Revision Details and show information such as what the value changed from and to
• Use the pencil to  edit a existing Revision
• Use person icon to show who made the Revision on the timeline
• Use the expansion icon to view all Revision in one view
• Click the +Revision button to add a new Revision

To create a new Revision, press the +Revision button. Select the date and time to create your record change.  Once a date has been chosen, the existing sensor settings will appear as they exist at that date selected. Whichever settings are changed here will only be updated for the date selected and on. 

Use Case Scenario

Below is an example of each scenario for a Piezometer that has been installed in a borehole at a depth of 50m below the surface:

Update Universally

For initial setup of your Piezometer, from the Edit configuration page enter 50 for the sensor depth. This setting will apply universally to the entire dataset for this piezometer. 

Elevation of H20 is now calculated using a sensor depth of 50m: Elevation of H20 = (Collar Elevation - Sensor Depth) + Pressure read by the Piezometer.

Revisions

If during service, the Piezometer was removed from the hole at its previous depth of 50m and reinstalled at a depth of 43m. This change in installation depth results in change in water pressure the Piezometer is now reading which in turn results in a change in the Elevation of H20.

Updating the Sensor depth to 43m using the traditional universal update is not ideal in this scenario as it would update the value for all data in the time series. This would result in a correct value for the Elevation of H20 after the change was made but an incorrect value for Elevation of H20 before. This is because the raw pressure reading from the Piezo has now changed.

Using Revision Management, we can compensate for this change by keeping the sensor depth value at 50m before the change and setting it to 43m after the change.

Now that the sensor is using each setting for its appropriate epoch of time, you can now see the elevation of H20 metric has been equalized. The algorithm calculating Elevation of H20 uses the value of 50m for data before the field disturbance and the value of 43m for data after.