Seismograph Guardian AS
Guardian AS is a compact, Class 1 triaxial seismograph for dynamic velocity measurements on structures in compliance with the reference standards DIN 4150-3, DIN 45669-1, and UNI9916.
Guardian AS
With a linearized geophone triplet featuring a dynamic range exceeding 130dB, this system ensures reliable data and rapid installation. The single-bolt fixing system and leveling screws allow for perfect alignment on any surface.
The system provides advanced connectivity and data management, supporting real-time transmission via standard protocols like SeedLink, enabling seamless integration with professional software such as SeisComP and Sworm. Operational flexibility is guaranteed by its ability to function as an FTP/SFTP client or server for flash memory file transfers. Meanwhile, the intuitive Seismic Web Configurator (SWC) interface allows for remote status monitoring, waveform visualization, and full parameter configuration. Finally, the integrated alert system ensures maximum responsiveness by sending instant email notifications or digital output signals when set thresholds are exceeded, supported by on-board LED status indicators.
Optional configurations
- Power over Ethernet (PoE)
- Internal battery (up to 10 working hours)
- Internal GNSS receiver for time synchronization
Applications
- HVSR Measurement
- Civil Monitoring
- Seismic Networks
Bridges and infrastructure
Tunnel
Monuments
Civil and residential
Caratteristiche tecniche
Technical characteristics
| Sensor type | Electronically equalized geophone |
| Number of axes | 3, orthogonally oriented |
| Measure range | ± 12.5, ± 25, ± 50, ± 100mm/s |
| Sensitivity | 40, 80, 160, 320 V/m/s |
| Frequency response | 1Hz ÷ 80HZ @200Sps, 1Hz ÷ 125Hz @500/1000sps |
| Samples rate | 10, 25, 50, 100, 200, 250, 500, 1000sps |
| Resolution | 32 bit |
| Dynamic range | > >130 dB |
| Linearity | ± 0,4 dB (class 1 - DIN 45699-1) |
| Phase | According to class 1 - DIN 45699-1 |
| Timing | Internal 0,5ppm drift free run RTC, NTP, optional internal GNSS |
| Recording Mode | Continuous recording with SeedLink Protocol. Configurable event recording when thresholds are exceeded with selectable pre-/post-trigger length. Recording of signal statistics (min, max, average, RMS) with selectable intervals from 10 to 100s. |
| Data Storage | 32 GB internal microSD |
| File formats | Solgeo EVE, MiniSEED, Ascii, CSV |
Environmental characteristics
| Operating Temperature | da -20 a +70 °C without internal battery da -20 a +50 °C with internal battery* |
| Storage Temperature | da -40 a +90 °C without internal battery da -20 a +50 °C with internal battery |
| Humidity | 0-100% |
| * during battery charge, the recommended temperature range is less extensive |
Physical characteristics
| Weigh | 4Kg |
| Dimensions (LxPxA) | 160 mm L x 160 mm W x 130 mm H |
| Enclosure | aluminium cabinet, painted |
| IP grade rating | IP67 |
Gallery