MAN-C24-0001 - Güralp Systems Limited

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CMG-CD24 1 Introduction The CD24 is a compact, very low power, multi-purpose digitiser, with three 24-bit differential inputs and 8 lower-speed, single-ended auxiliary inputs. Equipment with analogue outputs connects to the CD24 via a 26 way mil-spec connector. Key features include: • 24-bit sigma-delta analogue to digital converters. • Low power: < 1W from 10V–28V DC. • ±10V balanced differential input lines. • Lightweight and waterproof. • RS232 output in GCF (<strong>Güralp</strong> Compressed Format). • Multiple user-configurable output rates. 6 Issue C
Operator's Guide Once connected to 10 – 28 V DC power, the CD24 will begin operating automatically, digitising its inputs and either outputting digital data to your own recording system or saving them to internal Flash memory. 1.1 Options 1.0.1 State of health information The CD24 constantly monitors the status of the GPS and timing systems, outputting information in a plain text status stream. An electronic thermometer also provides regular measurements of the unit's internal temperature, which are reported in the same stream. The thermometer is calibrated to an accuracy up to ± 0.33 °C, with a linearity of ± 0.5 °C. 1.1.1 Storage and interfaces The CD24 can be supplied with up to 16 Gb of internal Flash memory for data storage. The amount you need will depend on the length of your experiment and the sampling rates used. You can download data from the internal storage: • over the RS232-compatible data port, directly into Scream! or other <strong>Güralp</strong> data modules; • over a fast IEEE.1394 (FireWire) link with optional power; or March 2011 7
Page 1 and 2: CMG-CD24 Compact Digitiser Operator
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8. Use DeviceInstaller to find the
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8 Revision history Operator's Guide
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