7 connecting to instruments, 8 calibration data – Guralp Systems Scream User Manual

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displayed are the baud rates currently used for each channel and for

the data link.

For more information on status streams and GPS, see Section 6.2 on
page 66.

If you View a selection which includes both status and data streams,
the status streams will be collected together and displayed in a tabbed
Status window, whilst the data streams will appear in a single
Waveview window.

3.7 Connecting to instruments

Digitiser configuration and other common operations can be
performed from Scream! by right-clicking on the digitiser in the source
tree and selecting Configure… or Control… See Chapter 7 on page 76

and Chapter 8 on page 89 for more information.

Scream! also allows you to access the serial terminal of any connected
digitiser and issue commands directly, by right-clicking on it and
selecting Terminal…. See Section 6.1 on page 63 for more information

about the serial terminal.

An instrument may connected to Scream! through a series of other
units (NAMs, EAMs, DCMs, etc). Scream! will negotiate with each

unit in turn to reach the instrument you are interested in. However,
the process may take a little time.

Right-clicking on a digitiser and selecting Triggers… brings up a
window describing all the digitiser triggers that have been detected.

This window can also be reached from the Summary window: see
section 6.3 on page 70 for more information.

3.8 Calibration data

Scream! can display data streams from displacement, velocity, and
acceleration sensors in physical units. To be able to do this, it needs

to know the calibration information provided with the sensor and
digitiser.

Newer Güralp digitisers transmit calibration information in an
information block when they reboot. When Scream! receives an
information block that it understands, it automatically extracts this

information and remembers it.

You can also enter and edit calibration information manually.
Right-click on the digitiser's icon and select Calvals…. A window will

January 2014

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