6.7.1 WiFi™ Connectivity - Principle of Operation

When using the WiFi™ feature, the instrument will try to connect to a known server at regular intervals, or immediately in case of alarm.

 

Note: Such intervals are typically set to once per day or twice per day. Connecting too often will deplete the battery faster if the instrument does not work from a connected power source.

 

Whenever it connects the instrument will talk to a special Instrument_Listener application running on the server. That application will do the following:

 

• If the instrument was recording:

o Upload the latest recorded data from the instrument and updates a growing file with that data (create the file if it was not already created).

 

• If the instrument was not recording (for instance if the recording was stopped earlier because the memory was full):

o Upload the latest recorded data from the instrument (if any) and update the recording file.

o Adjust the instrument time (does not adjust the time zone of the instrument, just precisely readjust the Universal-Time-Code running in the instrument).

o Delete all data in the instrument’s memory (all that data has already been safely stored in the recording file on the server).

o Start a new recording.

 

 

In addition to trying to connect at preset intervals, the instrument will try to connect immediately if an enabled alarm has been triggered. When that happens the Instrument_Listener application on the server will send the alarm emails, and will also perform the recorded data upload and all other operations that occur at the preset-interval.

 

Two alarms can be enabled:

• A noise level over a preset threshold

• The battery is close to being depleted

 

Note: When email alarms are enabled, the instrument does not send the email itself, but it will send the information to the Instrument_Listener application on the server, so that it can send the appropriate emails. It follows that if the server is not in operation, or is not running the Instrument_Listener application, the alarm emails will NOT be sent.