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Community Broadband Sensor Repair Policy

ver. 2011093

The PASSCAL Instrument Center (PIC) has historically honored requests to repair community owned broadband seismometers. Significant resources are required to process, evaluate, and repair a broadband instrument. To ensure that we are able to properly administer these requests and that we are offering these services consistently to all members of the IRIS community, the following policy will govern the PASSCAL Instrument Center's handling of these requests.

Guralp CMG-40T-1 Short Period Sensor

The CMG 40T-1sec seismometer looks, on the outside, just like the CMG 40T-30sec, intermediate period seismometer. Its response, however, is tuned to short-period signals (1-100Hz). One hundred of these feedback seismometers were purchased for the Flexible Array sensor pool.

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Guralp CMG3-ESP Broadband Sensor

Salient Features 30sec to 50 Hz flat velocity response Manual Mass locking/unlocking Remote Mass Centering Response Characteristics:

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Cold-rated Guralp CMG-3T Sensor

The Cold-rated Guralp CMG-3T seismometer is described in detail in the Polar section article "Sensors for Year Round Polar Programs".

Guralp CMG-3T Broadband Sensor

  Salient Features: 120s - 50 Hz flat velocity response Remote electronic mass locking, unlocking and centering. Installation & Troubleshooting Documents: Example of 3T/RT130 setup One-pager field sheet
Manufacturer's Documents: Guralp CMG-3T Manual Datasheet, Manual & Quick Start Guide
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