4: Using NeoFox Sport
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and NeoFox Sport begins logging data automatically. The name of this log file is automatically generated
when the data log begins in the format nf_xxx.tsv, where xxx is a 3-digit number for a filename that does
not already exist in the NeoFox directory.
When you select Oxygen Sensor | Sensor Setup | Data Logging | Turn data log off, then the file will be
closed. A new file is created the next time you select Turn data log on.
Viewing the Data Log File Name
You cannot set the file name, but you can view the name of the current log file by selecting Oxygen
Sensor | Sensor Setup | Data Logging | Data log filename.
Setting the Data Logging Interval
You can also set the data logging interval via the Oxygen Sensor | Sensor Setup | Data Logging | Data log
interval menu selection. This can be used to reduce the size of the log file. The minimum data log interval
is 1 second.
Data Log File Format
The datalog file is formatted as a tab separated value file. This file can be easily imported into Microsoft
Excel or comparable spreadsheet programs. A single sample in the data log is formatted as follows.
millisecond count <tab> upload date <tab> upload time <tab> oxygen
<tab> oxygen unit label <tab> algorithm temperature <tab> sensor
temperature <tab> tau <tab> algorithm pressure <tab> sensor pressure
Where:
Millisecond Count = The millisecond counter of the NeoFox device at the time of the actual sample.
Because this value is stored at the actual sampling time, this value is a more reliable timing metric than
the “upload date” and “upload time” fields.
Upload Date / Upload Time = These fields represent the date and time that the sample was uploaded to
the DPU.
Oxygen = The oxygen measurement (in whatever units are currently selected).
Oxygen Unit Label = The oxygen unit label; either “ppm”, “%”, “Torr”, or “um/L”
Algorithm Temperature = The temperature that was used to perform the conversion from Tau to Oxygen.
If the NeoFox’s temperature source parameter is set to:
Sensor temp, then this is the sensor temperature.
Fixed temp, then this is the fixed temperature value.
None, then this is 200.
Sensor Temperature = The sensor temperature (in degrees C).
Tau = The tau value (in microseconds).
Algorithm Pressure = The temperature that was used to perform the conversion from partial pressure of
Oxygen to concentration or mole%.
If the NeoFox’s pressure source parameter is set to:
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