Calibration and Repair
We maintain a complete seismic and acoustic calibration system.  The typical time required for testing and calibration is only 7 to 10 days.  Our calibration service has the following benefits:

• We strive for a factory calibration accuracy of 1% to 2% . ISEE seismograph performance specifications only require 5% accuracy.
• A calibration certification will be provided showing the response at various frequencies.
• Data in memory are downloaded and carefully reviewed.
• Cables, connectors and components are thoroughly checked and cleaned.
• The internal battery(s) are charged and tested.
• Instrument setup parameters are reviewed.
• Required firmware upgrades are installed.
• We have the ability to perform all repairs at a reasonable cost.