ULTRALOW POWER ROBUST 24-BIT FIELD SEISMIC DATA LOGGER

DAS6501 is a member of 6500 series of ultralow power, robust,
high-performance, extremely versatile 24-bit seismic
data recorders and digitizers.
Specifications subject to change without notice 0106
105-F West Dudleytown Road, Bloomfield, CT 06002 USA
Tel: 1-860-242-8177 Fax: 1-860-242-7812
e- mail:sales@pmdsci.com Web Site: www.pmdsci.com
The 6500 family of products includes: a rugged, autonomous
field system DAS6501, a strong motion data logger with builtin
(SMLA6501) or external (SML6501-xx) force-balanced accelerometers
(CLA100 or CLA200), a compact recorder for
ocean bottom applications (DAS6502), and a robust sensor
digitizer SD6503 – stand-alone or built into one of the PMD
seismometers. The strength of the 6500 family lies in the efficient
combination of state-of-the art components:
A very low-power, high-performance DSP (Texas Instrument’s
TMS320VC5419) that controls the data acquisition,
real-time digitization and filtration, and stores the data
temporarily in the micro-power, large capacity (up to 16MB) CMOS static RAM.
• A powerful, fully featured single-board PC that controls the data transfer to disk and communication
functions. It is active only when the SRAM is full, typically a few minutes every
several hours.
• PMD’s proprietary True Real Time™ system, controlled by the DSP that maintains extremely
accurate time with only occasional calls to the GPS receiver.