The EDR, made by EARTH DATA (U.K.), is a digital recording system for stand-alone use, but also for use with communication (e.g. real-time data via SEEDlink).
Adaptor cables are available for all types of broadband seismometers belonging to the DEPAS pool.
Digitiser SetUp and Control can be done via serial link (manufacturer software). Additionally, a GFZ-GIPP made Recorder SetUp and Status View Software (including Digitiser Parameters) is available for the use of WIN/DOS. The GFZ User Software also supports Group SetUp; and the Control functions, as Status View and Configuration File Download, are performed as one-key commands.
Data Retrieval is supported by GFZ User Software and by a set of disk adaptors cables to connect the hard disk to standard USB-2.0.
EarthData EDR-210 Recorder, 140 units
140 Units 3 Channels
3 Units 6 Channels
Hard Disk, 140 units
140 Units 32.0 GByte
Parameters - Input Signal
Channels 3 or 6, plus 8/4 auxiliary
Preamplification 1; 10 ; 0.4; 50
Sampling Rate 1; 2; 4; 5; 10; 20; 25; 40; 50; 75; 100, 120; 125; 150; 200; 250; 300; 375; 500; 600; 750;
1000 sps; 3000 sps (reduced dynamic range)
Resolution MiniSEED, ASCII: 1 microVolt/digit ( @ PreAmp = 1 ) digitiser output: 3.9 nanoVolt/digit
Dynamic Range 140 dB @ 100 sps, 150 dB @ 10 sps, 125 dB @ 1000 sps
Clock ±10 µs (GPS locked)
Synchronisation GPS, continuously or cycled
Hard Disk Solid static disk (FAT 32)
Storage Format ASCII, upper 3 Bytes of digitiser output MiniSEED, compressed (Steim-1), based on
upper 3 Bytes 'legacy', PR2400 multiplex (equivalent to digitiser output)
Power Consumption 0.8 Watts to 1.2 Watts (@ 3*100 sps)
Weight Recorder, including disk: 1.6 kg
Operating Temperatures Recorder and Disk: -20 to +60 °C
Connectors (Front Panel, Hard Disk)