Accelerograph Guardian DA and DA PLUS
Guardian DA/DA-Plus is a compact and reliable accelerograph with web-interface recording software. Designed for structural monitoring with automated threshold alerts.
Guardian DA and DA PLUS
It utilizes flash memory for storing acceleration data and offers multiple internet connectivity options. The device can operate as an FTP/SFTP client and SFTP server, supporting standard transmission protocols like SeedLink for real-time data streaming to popular software such as SeisComP, Sworm, and others.
Device management is handled via the Seismic Web Configurator (SWC), an intuitive and user-friendly web interface that allows for full configuration, real-time status monitoring, data management, and waveform visualization.
Available with a full scale of 2g (with 4g and 8g options), it also stands out for its competitive pricing.
Available with a full scale of 2g (with 4g and 8g options), it also stands out for its competitive pricing.
Optional configurations
- Power over Ethernet (PoE)
- Internal battery (up to 20 working hours)
- Internal GNSS receiver for time synchronization.
Applications
- Vibration monitoring on buildings
- Modal analysis (OMA)
- SHM (Structure Health Monitoring)
- EEW (Earthquake Early Warning)
Bridges and Infrastructure
Tunnel
Monuments
Civil and residential
Caratteristiche tecniche
TECHNICAL CHARACTERISTICS Guardian Da
| Sensor type | MEMS accelerometer | |
| Number of axes | 3, orthogonally oriented | |
| Measure range | ±2g, ±4g, ±8g optional on request | |
| Dynamic range | 73 dB @1000Sps, 83 dB @100sps, 93dB @10sps (2 g model) | |
| Noise density | 22.5μg/√Hz typ. |
TECHNICAL CHARACTERISTICS Guardian DA-Plus
| Sensor type | MEMS accelerometer | |
| Number of axes | 3, orthogonally oriented | |
| Measure range | > ±10g | |
| Dynamic range | 125 dB @1000Sps, 141 dB @100sps, 157dB @10sps | |
| Noise density | 0,25 μg /√Hz typ @100 sps |
General CHARACTERISTICS Guardian Da and DA-Plus
| Samples rate | 10, 25, 50, 100, 200, 250, 500, 1000sps | |
| 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. | |
| Dynamic range | 73 dB @1000Sps, 83 dB @100sps, 93dB @10sps (2 g model) | |
| Data Storage | 32 GB internal microSD | |
| File formats | Solgeo EVE, MiniSEED, Ascii, CSV |
ENVIRONMENTAL CHARACTERISTICS
| Operating Temperature | -20 ÷ +70 °C without internal battery -20 ÷ +50 °C with internal battery* |
| Storage Temperature | -40 ÷ +90 °C without internal battery -20 ÷ +50 °C with internal battery |
| Humidity | 0-100% |
| * during battery charge, the recommended temperature range is less extensive |
PHYSICAL CHARACTERISTICS
| Weigh | 1,2Kg |
| Dimensions (LxPxA) | 130 mm L x 160 mm W x 80 mm H |
| Enclosure | Aluminium cabinet, painted |
| IP grade rating | IP67 |
| Power connector | 6 terminals MIL-C-26482 |
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