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Station Servicing Recordkeeping (Metadata)


Record keeping during station servicing is almost as critical to constructing a successful site as is connecting components.  The records are not only necessary for assembling the meta-data required for submission of waveform data to the IRIS DMC, but may be of critical importance in solving problems associated with servicing and operation of the equipment.  This section discusses the bare minimum in what should be recorded before and during servicing.

PASSCAL will provide the service teams with “Service Sheets”.  These Service Sheets represent a series of tasks that must be completed in the order presented, together with fields that require information to be entered.  The Service Sheets thus represent not only a complete record of the equipment that exist at a particular station, but also a final check of its performance and sanity check for ensuring that the station is operating normally before departing the site.

The Service Sheets have equivalent versions that are used during installation and, sometimes, demobilization.

These sheets should be treated as permanent records, though it is likely that they will not survive long past a rain shower.  It is therefore imperative that the information recorded be transferred to a more permanent record such as a computer or transferred neatly to a clean Service Sheet.  Neat handwriting is clearly an advantage.

An example of an Service Sheet for a stand-alone station running a CMG-3T sensor and RefTek RT-130 DAS can be found here. Please have PASSCAL review the Service Sheets (and Install Sheets) you plan on using for your experiment, even if you downloaded them from the PASSCAL website. We tailor the Sheets to your experiment, specifically the equipment you've borrowed. Plus datalogger firmware changes, newly discovered bugs, etc. necessitate revisions to these Sheets.


Example Information to compile:

Station name
Date and local time of visit
Service crew names
GPS hand-held location information
Detailed driving and location notes, landowner contact information
Sensor S/N
Flash card(s) S/Ns
Battery voltage

GPS information such as time, location, elevation, status (locked, asleep, etc), # of satellites, etc.


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