Designed to interface with almost any sensor, the Taurus offers
industry leading performance and versatility in a field portable
seismograph. This lightweight, hand-held instrument can record
continuous data for over 800 days operating at a mere 750mw.
Consisting of a high resolution 24-bit ADC, a precision GPS clock,
and removable internal storage capabilities of up to 64G, the Taurus
combines all the attributes of a stand-alone recorder with the benefits
of internet and wireless communications.
User interface is simplified
through an integrated colour graphics display and a five-button keypad
providing instant access to real-time or recorded data. MiniSEED files
are recorded directly to FAT32 formatted removable media (Compact Flash),
allowing users to seamlessly transfer files to a PC or laptop for
immediate analysis.
The Taurus simplifies field deployments by eliminating the need for
auxiliary peripherals such as laptops and breakout boxes. Applications:
Broadband seismic studies
Emergency networks
Strong Motion Studies
Aftershock studies
Seismic networking via internet
Controlled source recording
Vibration Monitoring
Infrasound data acquisition
Local site storage in Libra VSAT Networks
Excellent data quality with 24-bit resolution and precise GPS timing
Hand-held, all in one seismograph capable of interfacing with any modern broadband or short period sensor with a single cable
Suitable for long-term deployments with >800 day recording capacity
Efficient, low power design requires only 750mw while acquiring 3 channels at 100 sps. Taurus can operate remotely on a 10Ah battery and 18W solar panel
Convenient data retrieval using internal, yet accessible, hot-swap media (FAT 32 compact flash)
Real-time data streaming capability for network applications via UDP/IP multicast and http over 10/100 Base-T Ethernet or the serial data port (SLIP) as well as dial-up or wireless internet connections
Integrated display provides access to various acquisition, monitoring, configuration and instrument status web pages
Easily interpreted web page display format provides onboard and remote access to real-time and historic data, GPS status, instrument configuration, and field procedures
Data output provided in industry standard formats, including: miniSEED, sorted miniSEED, ASCII, SEISAN and SEG-Y
SENSOR INPUTS
Channels
3 standard, field upgradeable to 6 or 9 with addition of external Trident digitizers
Sampling
Simultaneous
Input voltage range
40 V peak-to-peak differential (at gain 0.4)
Nominal sensitivity
1 count/micro-volt (gain 1)
Hardware gain selection
Software configurable 0.4, 1, 2, 4, 8
Software gain
User configurable 0.001 to 100
High pass filter
User configurable in mHz
DIGITIZER PERFORMANCE
Type
Proprietary high order sigma-delta
Digital filter
140dB attenuation at output Nyquist
Filter type
Linear phase (consult factory for other options)
Dynamic range
> 140dB @ 100sps (max sine wave above shorted input)
Sample rates
10, 20, 40, 50, 80, 100, 120, 200, 250, 500 sps
Subsample Decimation Factors
2, 5, 10, 20, 50, 100, 120, 200, 250
SENSOR SUPPORT
Sensor types
Broadband active and short period passive
Control lines
3; typically used for Cal enable, mass center and mass lock/unlock Logic level configurable; High: 5V, 12V,open drain. Low: 0, open drain
Sensor power
Supply power pass-through to sensor (9-36 VDC). Protected against short circuit. Sensor power can be switched on/off from user interface
INSTRUMENT STATE OF HEALTH
Taurus records continuous SOH
GPS state-of health
Instrument temperature
Seismometer mass position
Signal clip indication bit
Calibration enabled bit for each channel
User accessible SOH
4 external SOH channels (12-bit)
Configuration
Complete configuration audit trail
Communications
Complete audit trail with cumulative good/bad packet counts
Log file
All software
INTERNAL DATA STORAGE
Media options
1. Dual Removable Compact Flash:
- EXT3 format (Store Files)
- FAT32 format (miniSEED Files)
2. Removable CF and 1.8" ATA disk drive
RECORDING
Capacity
>800 days continuous recording, 3-channels @100sps
Recording modes
Continuous; write once or ringbuffer (overwrites oldest data) Continuous with STA/LTA trigger flags
File system
Ext3 (Linux) Drivers provided for Windows XP
Compact flash readable on standard USB flash card reader
Format
Nanometrics Store and MiniSEED
Data retrieval
Media exchange: Compact flash are field swappable. Flash readable on standard flash card readers
Download interfaces
Ethernet 10/100 Base-T
REAL-TIME DATA COMMUNICATIONS
Interfaces
Ethernet 10/100 Base-T
Protocols
UDP/IP unicast/multicast
HTTP (POST and GET) RS-232 serial with IP drivers
INTEGRATED USER INTERFACE
LCD display
240x320 color graphics display with backlight
Interface
Web browser with five button navigation
LED
System status tri-color LED, Ethernet Communications LED, Media status LED.
LCD display
240x320 color graphics display with backlight
CONFIGURATION
Configuration
Taurus is configurable locally via the color LCD display and onboard browser or remotely using any web browser connected to the unit. Multiple unit configuration is achieved using an optional group configuration web server. Consult factory for further information.
SOFTWARE
Operating system
Linux
Applications software
Nanometrics Next Generation NAQS Server with web interface
CONNECTORS
Sensor connector
26-pin mil circular. Primary data channels, sensor control lines, protected/switchable sensor power, digital serial sensor management interface
Serial/USB
19-pin mil circular
Serial port 1
Rx, Tx, RTS, CTS, DTR, DSR, CD, RI
Serial port 2
Rx, Tx, RTS, CTS (data collection from serial devices)
GPS
TNC, active antenna connection (3.3 V)
Ethernet
4-pin mil circular, 10/100 Base-T
User SOH
7-pin mil circular, 4 analog SOH inputs, SOH ref., 3.3V @10mA power
NMXBus
4-pin mil circular, NMXbus data and power
Power
3-pin mil circular, 9-36 VDC
USB
USB Master/slave accessible behind media door
POWER
Supply Voltage
9-36 VDC
Power system
Protected electronic resettable fuse design with configurable low voltage disconnect and restart, reverse battery and short circuit protection
