Guralp-systems CMG-3ESPCD Bedienungsanleitung PDF herunterladen (Seite 54)

CMG-3ESPCD Digital Broadband Seismometer Using Scream!

Enable GPS power cycling: If you are using a GPS unit to receive time signals,

but do not experience significant drift in the system's clock (for example, in a

stable-temperature environment), you can save power by selecting Enable

GPS power cycling. With this option in use, the GPS time is only checked at

intervals of a specified number of hours.

5.2.2 Triggering

The Triggering pane is very similar to the corresponding pane of the

Configuration set-up window although not all options are available, since

some require rebooting the digitiser. See “Triggering” in section 5.2.2 on page

54 for more details.

5.2.3 Calibration

You can check that your instrumentation is correctly calibrated by injecting

known signals into the sensor's feedback loop. The Calibration pane allows

you to do this once the sensors are installed. See section 4 on page 28 for

details.

5.2.4 Mass Control

The controls on this tab are used to centre, unlock, and lock the sensor

masses.

Note: Whether or not this tab is visible depends on the “Sensor

type” setting on the “System” tab. See section 5.2.1 on page 53.

See section 7.1.2 on page 77 for more information.

MAN-C3E-0002 54 Issue B - November 2013

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Guralp-systems CMG-3ESPCD Bedienungsanleitung Seite 54