Centaur Digitizer
The Centaur is an all-in-one digitizer, recorder, and telemetry instrument with advanced on-board data processing capable of data manipulation and detecting events in the field
Centaur Digitizer
Digitizer 3 & 6 ChannelCategories: Digitizer
The Centaur is an all-in-one digitizer, recorder, and telemetry instrument with advanced on-board data processing capable of data manipulation and detecting events in the field. Whether its a permanent or portable deployment, standalone or networked, the choice of digitizer has never been easier. Having the richest feature set of any digitizer in its class, and because it’s highly configurable, the Centaur is right for any application.
CTR4 SERIES MODELSThe Centaur Digitizer introduces a number of capabilities including calibration output enhancements that support broader sensor calibration. These new models support a current source mode in addition to voltage source mode and improved calibration output signal accuracy of ±1%. The voltage mode maximum output range has been doubled to 20 Vpp. The new CTR4 series models include the CTR4-3A which has built-in case tamper detection, supports external tamper switches, and has built-in hardware authentication of CD-1.1 message formats.
Product Detail Description
Sensor Types: Broadband seismometers, short period geophones, and microbarometers
Control Lines: 6 sensor inputs – typically used for calibration enable, mass center, mass lock/unlock, XYZ/UVW select
Sensor Power:
- Supply power pass-through to sensor (9-36 VDC, 1A)
- Over-current and surge protected
Auto Mass Centering: Configurable thresholds, intervals, retries
Serial Interface: Supports digital management of Nanometrics sensors and connectivity to weather stations
Sampling: Simultaneous on all 3 or 6 channels
Dynamic Range: 142 dB @ 100 sps, 135 dB @ 500 sps (full-scale peak to RMS shorted-input noise)
Resolution: User selectable bit-depth from 24 to 31 bits per sample, 32-bit ADC sample architecture
Accuracy: Nominal gain accuracy within ±0.5%
Preamp Gain:
- Standard: 1x, 2x, 4x, 10x, 20x, 40x
- High Gain: 4x, 8x, 16x, 40x, 80x, 160x
Digital Gain: 0.001 to 100 high precision DSP gain permits choice of any digitizer gain
Sample Rates: 1, 2, 5, 10, 20, 40, 50, 80, 100, 125, 200, 250, 500, 1000, 2000, 5000 sps
Dual Sample Rates: A second sample rate can be selected from the sample rates above
Decimation Anti-Aliasing Filter:
- Selectable linear phase (noncausal) or minimum phase (causal)
- -140 dB (linear phase) or -120 dB (minimum phase) at Nyquist frequency, 0 dB at 80% Nyquist
Digital Filters:
- User-configurable low-pass and high-pass
- 1st to 5th order, 0.1 mHz to Nyquist
- Different filters may be configured for primary and secondary sample rates and Sensor A and B
Orientation Correction: User configurable onboard 3-D data rotation for correcting azimuth and tilt
Power Supply: 9-36 VDC isolated input
Protection: Electronic resettable fuse design, lightning surge, reverse battery, and short circuit protection
Battery Manager: User-configurable low voltage shutdown and restart thresholds
- 3 chan. (standard): 850 mW
- 6 chan. (standard): 1.2 W
- Ethernet: Add 0.2 W for 10 Base-T, 0.3 W for 100 Base-T
- High Gain: Add 0.2 W for every 3 high-gain channels
- Authentication: Authenticating models add 1.2 W if enabled
| Centaur_Data_Sheet.pdf |
