CTBTO Technical Training Program TTP Part 2 Seismic

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GSN Station Operator Technical Training Program
(TTP 2005)

• Albuquerque Seismological Laboratory

ASL
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Training

• Installation, maintenance and operation training
  are conducted during the initial installation of
  the station.
• Refreshed during any maintenance visit.

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Glossary

• ASL Albuquerque Seismological Laboratory
• Comm-link Remote system connection from DAU to
  DPU
• DA or DAU Data Acquisition (Unit) of a Remote
  system.
• DAU/DPU Combined Data Acquisition Unit and Data
  Processing Unit (Local System)
• DCC Data Collection Center
• DP or DPU Data Processing Unit. The recording
  portion of a Remote system.
• GPS Global Positioning Satellite

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Glossary Continued

• GSNMAINT Technical personnel at ASL that handle
  Global Seismograph Network Maintenance
• I/O Input or Output to a module or device
• IRIS Incorporated Research Institutions for
  Seismology
• LISS Live Internet Seismic Server
• QC Quality Control
• UPS Uninterruptible Power System

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Training Agenda

• Effective communication with ASL
• System hardware descriptions
• Software operation
• Maintenance procedures
• Trouble shooting
• Data analysis
• Grounding and lightning protection
• Shipping hardware to ASL

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Contacting ASL By E-mail

• Send all station specific messages to
  gsnmaint_at_asl.cr.usgs.gov
• This is a mail list of all technical persons at
  Albuquerque Seismological Laboratory
• Use the format below to help us sort mail and
  quickly respond to your station problems.
• Subject CODE Problem description

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Why Do We Use Mail Lists?

• More than one person is aware of the problem.
  Multiple points of contact.
• Maintenance priority is assigned.
• Actions taken.
• Data quality is verified.
• Mail List is notified when the problem is solved.

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Problem Handling Flowchart
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Data Flow from SAML to ASL
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GSN System
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Q330 Recording System Example
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Detailed System Hardware Descriptions and Training

• Conducted by Field Engineers on hardware systems
  matching the specific configuration for each
  participating station.

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Local Power System
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Power System Component Descriptions

• Voltage Regulator
• Used to regulate AC voltage.
• Corrects for low or high commercial power.
• Constant Voltage Transformer
• Conditions the input AC voltage to the DC UPS
  (battery charger).

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Power System Component Descriptions

• DC UPS (Battery Charger)
• Converts commercial AC power to 24 VDC to the
  operate the DA and charge the stationary
  batteries.
• Stationary Batteries
• Power for the DA and seismometers during a
  commercial AC power outage.

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Power System Component Descriptions

• Battery Preventive Maintenance
• Keep the battery terminals clean and dry.
• Check for proper voltage in loaded and
  unloaded conditions.
• Battery Replacement
• Report any abnormal conditions to GSN Maintenance
  for replacement instructions.

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Photo Voltaic (PV)Power System and VSAT
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GSN Q680 System
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Q330 and Packet Baler
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Equipment Installed in TA Vault
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VSAT Antenna and PV Array Examples
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Seismometers

• Borehole Installations
• KS54000i
• CMG3-TB
• Surface Installations
• STS-1/VBB
• STS-2
• CMG-3T
• FBA-23 (Accelerometer)
• Episensor (Accelerometer)

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Seismometers

• Basic Information
• NEVER move a seismometer without locking the
  mass.
• Prevent temperature changes to seismometer and
  inside vault.
• Eliminate seismic noise near seismometers.

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Seismometers

• Operator Maintenance Requirements
• Depends on the type of seismometer
• Monitor the data quality
• Check the mass positions (if data is available)
• Center the masses (not possible on all
  seismometers)
• Align the seismometer if it has been replaced
  (surface instruments only)
• Troubleshoot problems

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Seismometers

• STS-2
• Monitor the data for problems
• Check mass positions on status screen
• Center all masses if any mass is more than or-
  5 volts from zero. Use the current procedure
  provided by GSN Maintenance
• Center the masses whenever power is lost to the
  seismometer
• Troubleshooting
• If data is noisy or spiking, check for moisture
  problems and re-level the instrument
• If there is no seismic or mass position data,
  this is most likely due to a faulty Host Box
• Request help from ASL

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Grounding

• Grounding is for protection of personnel and
  reliable equipment operation.
• Lightning or equipment failures can cause voltage
  transients that can damage equipment or kill you.
• All equipment is grounded to one place Single
  Point Ground
• Maintain the integrity of the grounding system
  installed with the GSN equipment.

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Grounding

• The importance of correctly installing and
  maintaining a reliable grounding system is
  explained.
• Exothermic welding connections are demonstrated.

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System Software

• Training conducted by Software Engineers and
  Field Engineers.
• On hardware systems configured for the specific
  stations.
• Running the station operational software.

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Quality Control

• Quality Control analysts explain how they verify
  seismic content of the data.
• Field Engineers and Quality Control analysts
  demonstrate and explain the capabilities of data
  analysis software.

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System Maintenance

• Training is conducted by Field Engineers on
  hardware configurations for each specific
  station.
• Test systems are setup for any unique hardware
  configurations.

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Trouble Shooting

• Conducted by Field Engineers to locate common
  problems.
• Present solutions for possible temporary repairs
  to keep the station operational.

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PRIMARY PROBLEM TROUBLESHOOTING POINTS

• Before contacting ASL for technical assistance
  with a station problem please insure the
  following troubleshooting procedures have been
  completed.

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• Is power available at all equipment locations?
  Has there been a commercial power outage?
• If power is available but a component is not
  functioning, are fuses blown?
• Verify normal operation of all LEDs on the
  system and make notes to inform GSN Maintenance
  if they are ON or OFF or FLASHING.

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• Note status of Radio or Modem comm- link LEDs if
  you have this hardware.
• Inform GSN Maintenance of any electrical storms
  that may have been in the area when the problem
  started.
• If you are not familiar with the above actions
  ask for guidance from GSN Maintenance.

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LIGHTS ON THE QUANTERRA SYSTEM(Example of a
Troubleshooting Checklist)

• CPU Central Processing Unit Board
• FAIL (red) OFF Normal Operation.
• STATUS (yellow) FLASHING Normal operation.
• RUN (green) FLASHING Normal operation.
• SCON (green) ON Normal operation.
• MVME 712/M Interface Module
• Visible through a hole in the front panel are two
  lights (yellow and green) ON Normal operation.
• The light in the terminator connector on the
  front panel (green) ON Normal operation
• QPWR Quanterra Power Module
• The top light (yellow) OFF Normal operation.
• The top light is a blown fuse indicator for the
  incoming power and will also illuminate when the
  top power switch is turned off.
• The center light (yellow) OFF Normal operation.
• The center light is also a blown fuse indicator.
  ON 24 VDC power is lost to the QAP modules.
• The bottom light (green) ON Normal operation.
• If the bottom light is not illuminated, there is
  less than 20 VDC available at the input
  connector.
• QDP Quanterra Digital Processor Modules
• All 3 (red) lights Flashing brightly each second
  Normal operation.
• All 3 lights on continuous CPU has Reset.
• Lights flashing rapidly Memory failure.

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Operator Responsibilites

• Tasks to monitor station operational
• Daily
• Weekly
• Periodic
• These general tasks are tailored for each station.

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Contacting ASL By E-mail

• Send all station specific messages to
  gsnmaint_at_asl.cr.usgs.gov
• This is a mail list of all technical persons at
  Albuquerque Seismological Laboratory
• Use the format below to help us sort mail and
  quickly respond to your station problems.
• Subject CODE Problem description

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