A compact portable sensor offering superior broadband performance over a wide temperature range with very low self noise.
This low self-noise makes the Trillium 120P/PA ideal for local, regional and tele-seismic studies in both observatory and portable applications. Portable network users will appreciate the low power consumption and reliable operation over a temperature range of ±45ºC without re-centering.
The Trillium PA offers the added benefit of fast "one touch" motorized mass centering. Motorized mass centering simplifies seismometer installation and provides the option of remotely re-centering the masses via a telemetry connection.
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This low self-noise makes the Trillium 120P/PA ideal for local, regional and tele-seismic studies in both observatory and portable applications. Portable network users will appreciate the low power consumption and reliable operation over a temperature range of ±45ºC without re-centering.
The Trillium PA offers the added benefit of fast "one touch" motorized mass centering. Motorized mass centering simplifies seismometer installation and provides the option of remotely re-centering the masses via a telemetry connection.
- Very broadband performance from a portable, low -power seismometer
- Wide ranging temperature operations (+/-45°C) without re-centering
- Switchable XYZ/UVW output to provide independent calibration of sensor axes
- Simple operation with no mass lock to employ
- Trillium PA offers the added benefit of motorized mass centering for rapid deployment and remote adjustment
TECHNOLOGY | |
| Topology | Symmetric triaxial |
| Feedback | Force balance with capacitive transducer |
| Mass Centering | Automatic motorized re-centering, can be remotely initiated |
| Leveling | Integrated bubble level; Adjustable locking leveling feet |
| Alignment | Vertical scribe marks for (N and S); Precision guide in cover for straight-edge, line or laser level; Holes for 5/16" alignment (E and W) |
PERFORMANCE | |
| Self-noise | Below the NLNM 35 s up to 10 Hz |
| Sensitivity | 1200 V-s/m ±0.5% precision, Contact factory for other options |
| Bandwidth | -3 dB points at 120s and 145 Hz |
| Clip Level | > 15 mm/s up to 1.5 Hz |
| Temperature | ±45°C without re-centering |
INTERFACE | |
| Connector | 19-pin MIL-C-28642 |
| Velocity Output | 40 V peak-to-peak differential; Selectable XYZ or UVW mode |
| Mass Position Output | Three independent voltage outputs |
| Calibration Input | Single voltage input with one active high control signal per channel; Calibration in XYZ or UVW |
| Serial Port | For enhanced instrument control and status:
Mass center, UVW/XYZ mode, short/long period mode, firmware updates Temperature, mass position, instrument status, serial number |
POWER | |
| Supply Voltage | 9 to 36 volts DC isolated input |
| Power Consumption | 620 mW typical at 15 V input |
| Protection | Reverse-voltage protection; Auto-resettable over-current protection (No fuse to replace) |
PHYSICAL | |
| Diameter | 21.0 cm |
| Height | 21.4 cm ±0.5 cm depending on leveling feet extension |
| Weight | 7.5 Kg |
| Handling | Detachable carrying handle on lid |
ENVIRONMENTAL | |
| Operating temp | -20°C to +50°C |
| Humidity | 0 to 100% |
| Shock | 20g half sine, 5 ms without damage, 6 axis;
No mass lock required for transport |
| Rugged | Rated to IP68 and NEMA6P for outdoor use |
Specifications subject to change without notice