Setting up the INFRA S50

S50 Enhanced

This is a guide on how to set up the S50. You can read about:

  • how to make the unit connect frequently to INFRA Net
  • how to create the agenda
  • how the agenda tab works
  • how to set up the leq properties
  • how to see the settings in a data reports

Make the unit connect frequently to INFRA Net

This calculation is executed in INFRA Net, as such it only includes data uploaded by the sensor. We have enhanced the normal data transfer configuration to allow interval data to be sent to INFRA Net up to four times an hour. New special commands have been included enabling the data logger to connect two or four times an hour.

Note: When you are making changes in special commands, you cannot make other changes.

This should be set up as follows:

  1. Go to the hardware tab
  2. Search the master that has the S50.
  3. Click on special commands
  4. Choose if you want to connect to 2x/hour or 4x/hour.
  5. Click on save.
  6. Click on manage changes and click on commit. Don’t forget to make sure that the changes are applied on the hardware. Once the changes have been applied the scheduled hours will be empty.


Create the agenda

An agenda gives you the ability to group and name time spans over which specific settings will apply. It may be referred to multiple times across different projects.

The agenda is not where the instrument or calculations are configured. It gives you the ability to group and name time spans over which specific settings will apply. An agenda may be referred to multiple times across different projects.

Within INFRA Net you can now set up custom agendas as follows:

  1. Click the cogwheel
  2. Choose company settings
  3. Create agenda
  4. Name the agenda



Agenda item/definition

This is where you insert the specific settings defining the span that you want to have, (the specific times).

Think of it as creating a recurring meeting. For example; Monday- Thursday 8-17, Fridays 8-15 would be two items/definitions for defining office hours. To configure an agenda item, you should:

  1. Set the date. This is the start date for this agenda item, this can be set to a historic date to allow post processing of measured data.
  2. You can select an end date for the item, however, typically this will be left open by choosing the never check box
  3. Label- Choose an existing label or write a new label. To write a new label write the label and press the +. The label you set is the one that is going to be used in the system. It is possible to have several items in an agenda.
  4. Set the year. You can specify specific years for the item or select every for the item to apply for all years
  5. Set the month. You can choose every 1/2/3/5 month or manually choose specific months. When you activate months you get two more choices. By selecting every 1 month the item will apply to all months;
  6. Set the week. By selecting every 1 week the item will apply to all weeks. However, you may set it to occur every two weeks using the drop down menu.
  7. Set the days. You can select which days of the week the item applies using the drop down menu.
  8. Set the hour, this is the time which the agenda item starts and should normally just be a single time
  9. Set the minute; this can be used to set when within an hour the item starts, typically this is set to none allowing the item to start on the hour.
  10. Set the duration, this sets the length the time event(s) of this item will last.
  11. Click on save.


Agenda tab

  1. Rename- here you can rename the agenda.
  2. Manage labels- here is where you rename the labels.
  3. Add item- here you can add another definition.
  4. Change a definition- go to the pen.
  5. Delete a definition- click on the X.


There is a general default; if there isn’t an agenda the default is going to be used.

Reviewing the Agenda settings

Once the agenda is complete you can review the time periods set up using the preview pane below the agenda details. This provides a visual representation of the agenda items and enables you to spot unwanted overlaps and gaps.


Setting up Leq properties

Project tab- choose project- measuring point-find your S50 measuring point.


This is a new virtual channel that only INFRA Net knows about. This channel is disabled by default. On existing measuring points you need to check the Lcustom box and also in the wizard.

S50 properties

Here you can choose type (only accumulation is available) and agenda. For every label you set accumulation time, baseline, trig value.


Accumulation span

This is where you set the length of the custom Leq for the agenda item. The length of the span does not need to be the same length as the agenda item. For example, for office hours the span could be set to 600min (10hr) which will provide a 10hr Leq, this matches the agenda item length, however, the span in the evening may be set to 60min which would provide four 1 hr Leq values (snapped to the hour) over the 4hr agenda item duration.


This value is set by you. This enables you to define an assumed noise level across the duration of the agenda item. This value will be used for future data points to calculate the Leq. As the noise levels are measured and uploaded the baseline levels are overwritten. At the end of the Accumulation span 100% of the data used will be measured data.

Trig value

This is the value at which a message will be sent.

Important! This is where you set the value, not under messages. To use S50 with Lcustom you set the trig value here. This is why it’s important to configure the master to connect often, since it is in INFRA Net the trigger level gets evaluated.

When using the baseline value correct, you will receive one alarm per accumulation span. A trigger event will be created when the Lcustom value goes above the trig level with a positive gradient.


Since the Lcustom channel is purely virtual and you set the trigger you want in the measuring point settings, make sure the message rules for your S50 measuring points is set to “trigger values”.

Data reports

Once you have set up your agenda and configured the Lcustom channel you may review the new Leq periods within a standard data report. The normal interval data (Leq and Lmax) will appear at the top of the as normal and the Lcustom channel will appear immediately below. You will see transients highlighted on the Lcustom chart as red dots, however, these do not relate to the custom channel but are instead highlighting transients from the interval data.


You can retrospectively apply the Lcustom channel to project data providing the agenda you created has a start date and time which covers the period. You may extend the active period of the agenda back in time and re analyse your data. Please note triggers will not be sent on historic data.