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NetDAS (24-bit Internet DAS).
Data recorder/transmitter/server, 4-64 channels for use in seismic safety, industrial, scientific and remote monitoring applications. Includes GPS, multiple triggers, wired or wireless connectivity. Runs under Windows XP/Vista, Linux or Mac OS X. Operates standalone or with Poseidon facility alarm or Cronos structural monitoring systems. |
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DAQ24USB
(24-bit USB DAS)
USB data acquisition with up to 130 dB of dynamic range: Java data logger, libraries, notebook or desktop host PC, USB powered, OEM or kit. |
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Accelerograph System
| Applications and Features |
- Satisfies building code for seismic monitoring
- Uses building LAN for triggering and timing
- Removable Compact Flash event storage
- No external hardware required
- Cost-effective, full-featured, strong-motion array
- Remote maintenance via the Internet
- Automatic event notification
- Download events via the Internet
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CRONOS Strong-Motion System
The CRONOS System consists of two or more NetDAS accelerographs that are interconnected via the building’s Local Area Network (LAN) . By employing the LAN (as opposed to older analog interconnect cables) greater flexibility and economy is achieved. The Master NetDAS servers time to all other NetDAS units via a time code on NetDAS subnet "B". Common triggering is achieved via NetDAS subnet "A". Each client or server on subnet "A" can communicate with all other units on that subnet as well as other computers for remote servicing. Remote servicing saves considerable time and expense as opposed to on-site servicing required by most other units.
| Specifications |
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Accelerometer |
+/- 5 g (internal standard, external option) |
Dynamic ranges |
60, 90, or 120 dB |
Common timing |
Trigger Info Packets on LAN subnet "A" |
Common triggering |
Time code on LAN subnet "B" |
Power consumption |
5 watts |
Analog channels |
24-bit; 10—1000 samples/sec; up to 90-dB dynamic range |
Triggers |
Level, average, or Ethernet message |
Pre/post-event memory |
30 minutes standard; unlimited (optional) |
Recording capacity |
120 minutes; removable Compact Flash |
Self-test |
Programmable system self-test |
LED indicators |
Power, Run, Event, & Error |
Enclosure |
Industrial crush-proof cast-Al housing; 4-bolt mounting pattern; 8" x 9" x 7"; 13 lb; NEMA-12 (4X optional) |
Operating temperature |
-30° to +60° C |
Central computer
(Poseidon option) |
Windows XP/Vista server, 15” TFT monitor, keyboard-trackball mouse (optional)
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Bundled software |
Graphical display, triggers, logger, formatter, data concentrator, analysis functions |
Auxiliary I/O |
Digital I/O, 10-bit analog (option) |
| Orientation
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X-Y-Z axes marked on cover
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Power back-up |
Internal sealed lead-acid battery, 5-year rating |
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