Chapter 2. System Overview
Thank-you for purchasing a Güralp Fortimus digital accelerometer.
This section describes the key components of a Fortimus system. The Fortimus unit is the main, standard product in the system; other components and accessories are optional and can be purchased separately. Please check your order confirmation to see which components were purchased with your system.
2.1 Key features
Digital, three-axis, strong-motion, force-feedback accelerometer.
Flat response to ground acceleration from DC to 315 Hz.
Selectable gains for full-scale readings of ±4 g, ±2 g, ±1 g and ±0.5 g.
24-bit digitiser with a nominal sensitivity of 2.44 µV per count.
Selectable sample rates from 1 sample per hour to 5000 sps.
Data streaming in real-time using GCF (Scream!), GDI-link and SEEDlink.
Compact form, measuring just 165 × 165 × 84 mm.
Internal ±2 g MEMS accelerometer for orientation.
Identification of I.P. address via Güralp Discovery software and, optionally, a cloud-based or organisational registry server.
Remote instrument and data management via Discovery software.
Android app for installation integrity checking via Bluetooth.
Low-latency mode for Earthquake Early Warning (< 40 ms).
Hot-swappable data storage with dual redundant 64 GB microSD cards.
GNSS time-synchronisation, compatible with Navstar (GPS), GLONASS, BeiDou and Galileo constellations, with PTP available as an alternative time-source.
Touch-sensitive, 2.4 inch colour LCD for monitoring and control operations.
2.2 Typical applications
Earthquake Early Warning systems.
Multi-scale seismic networks and arrays.
Structural health monitoring (e.g. dams, industry, buildings).
Surface and vault installation.