pALERT S303 Tri-axial MEMS Accelerograph
Introducing the pALERT S303, an advanced iteration of the pALERT network accelerometer series, fortified with cutting-edge features for unparalleled seismic monitoring. With an IP67 protection rating, this device ensures durability in challenging environments, while a significant boost in computing speed and expanded internal memory for waveform storage elevates its overall performance.
OVERVIEW
Description
Introduction
Introducing the pALERT S303, an advanced iteration of the pALERT network accelerometer series, fortified with cutting-edge features for unparalleled seismic monitoring. With an IP67 protection rating, this device ensures durability in challenging environments, while a significant boost in computing speed and expanded internal memory for waveform storage elevates its overall performance. Developed in collaboration with Prof. Yih-Min Wu of National Taiwan University, the pALERT S303 embeds Pd technology, enabling it to determine seismic events within 3 seconds of capturing P-waves and issue warnings based on the estimated impact of subsequent S-waves, contributing to proactive earthquake damage reduction. The pALERT S303 stands out with three triggering algorithms ‒ Pd, PGA, and STA/LTA, providing users with customizable options for precise seismic detection. Offering configurable low pass filters, users can effectively eliminate high-frequency noise from non-seismic vibrations. The device supports various intensity scales, allowing flexibility in data representation. With event information storage capabilities, users can access crucial details such as triggering time, maximum intensity, PGA in each component, and 3-component acceleration in vector form.
Applications
Seismic Monitoring Array
Industrial Disaster Prevention
Earthquake Early Warning (EEW)
Rapid Structural Health Diagnostic (RSHD)n
Key Features
- Built-in Back Up Power
- Support International Standard of Intensity Scale
- Time Synchronization via NTP
- Built-in Web GUI
- Edge Computing Capability
- Modbus Protocol
Best Suited
- Residential Buildings
- Factories and Plants
- Schools and Public Facilities
Product Specification
| Specification | pALERT S303 | pALERT Q332 |
|---|---|---|
| Sensor Type | Tri-axial MEMS Accelerometer Optional: 4th-axial vertical Geophone (built-in/externally) |
Tri-axial Quartz MEMS Accelerometer Optional: 4th-axial vertical Geophone (built-in/externally) |
| Measuring Range | ±2, ±4 g (customized) | ±1 g, ±2 g, ±4 g, ±15 g |
| Dynamic Range | >100 dB | >132 dB |
| Sample Rate | 100 SPS, 200 SPS, 500 SPS, 1000 SPS (configurable) | 50 SPS, 100 SPS, 200 SPS, 500 SPS, 1000 SPS (configurable) |
| Frequency Response | 0.05 – 40 Hz (with 10Hz / 20Hz / 40Hz digital filters) | DC – 460 Hz |
| LED Display | 2 lines x 20 characters | 2 lines x 20 characters |
| Trigger Algorithm | Pd, PGA, STA / LTA | Pd, PGA, STA / LTA |
| Power Supply | 10 – 30 VDC | 10 – 30 VDC |
| Power Consumption | 2W@12VDC | 2W@12VDC |
| Operating Temperature | -20°C to 70°C | -20°C to 70°C |
| ADC | 4 channels@24 bit | 4 channels@24 bit |
| Data Format | CSV / miniSEED | CSV / miniSEED |
| RTC Accuracy | ±60 sec/year, supporting NTP synchronization. Optional: GPS model available upon request |
±60 sec/year, supporting NTP synchronization. Optional: GPS model available upon request |
| Storage | 16 GB microSD Card (expandable) | 16 GB microSD Card (expandable) |
| Waterproof | IP67 | IP67 |
| Weight | 1.8 kg | 1.8 kg |
| Dimension (L x W x H) | 205 x 160 x 80 mm | 205 x 160 x 80 mm |
*All prices, features, and specifications are subject to change without prior notice.















