Digitisers

The Guralp Systems range of digitisers offer high-quality full 24-bit resolution, designed for data quality and durability. They are available with a range of input ports, memory and communication options.

Model Range

DM24 – Standard 3 or 6 channel digitiser
DM24S3EAM – Authenticated 3 channel digitiser with acquisition module
DM24S6EAM – Authenticated 6 channel digitiser with acquisition module
DM24S3EAM – 3 channel digitiser with acquisition module
DM24S6EAM – 6 channel digitiser with acquisition module
DM24S9EAM – 9 channel digitiser with acquisition module
DM24S12EAM – 12 channel digitiser with acquisition module
DM24S24EAM – 24 channel digitiser with acquisition module
CD24S3 – Low cost 3 channel Disigitser
CD24S4- Low cost 4 channel Disigitser
CD24R6EAM – Rack mounted low latency 6 channel digiriser with acquisition module

Features

  • From 3 to 24 low noise 24-bit ADCs
  • Additional full-rate data channel for user signals and calibration
  • Low power 32-bit DSP and ARM processor (<1 W recording 4 channels at 100 samples/s)
  • Multiple concurrent data rates up to 1000 samples/s
  • STA/LTA ratio, level, external and software triggering
  • UTC timestamped data from attached GPS receiver
  • 8 environmental channels with 20-bit resolution (3 × mass position, temperature, 4 × user)
  • Full control of Guralp broadband seismometers
  • Calibration using step, sinusoid or pseudo-random broadband noise signals
  • Up to 256Gb Flash memory with fast FireWire data transfer (EAM models only)
  • Fully configurable using Guralp data modules and software

Options

  • 8 additional environmental channels
  • Further full-rate channels available using daisy-chaining
  • Ultra-low noise option at a small cost in power
  • Borehole form factor
  • Integrated module form factor can be retrofitted to existing sensors (3T to 3TD, 40T to 40TD)
  • LCD state-of-health display
  • FireWire interface for external storage devices
  • USB memory stick interface (case lid can be closed with memory stick in place)