beautypg.com

Guralp Systems CMG-DM24 User Manual

Page 49

background image

Operator's guide

CMG-3ESP can be centred from Scream, but must be locked and

unlocked manually, whilst a 3T has remote lock and unlock
commands. Conversely, CMG-5T strong-motion instruments must be

centred manually, and do not need locking or unlocking. If you have
set the Sensor Type to CMG-5T or CMG-5TD, the Mass Control tab will
not be available.

Data flow

The DM24 operates in one of several transmission modes and,
independently, in one of several buffering modes. These modes relate

to how the unit uses its Flash memory and are described fully in
section 3.3, page 15.

To select transmission and buffering modes in Scream!, right-click on
the digitizer, then click on Control... and navigate to the Data Flow

pane:

Select the desired Transmission mode to use the flash memory:

as a simple data store, from which you can request data (FILING
and DUAL modes);

as a buffer holding unacknowledged blocks, which are

transmitted in preference to real-time data (FIFO mode);

October 2009

49