The FLIR Si2-Pro™ acoustic imager helps identify leaks, electrical partial discharge, and early bearing issues to reduce downtime and improve safety.
The Flir Si2-Pro™ acoustic imaging for partial discharge helps you significantly lower costs associated with mechanical bearing issues and partial discharge on electrical equipment. It also enables you to drastically reduce leaks in your facilities, cutting down expenses related to compressed air and gas leaks. With the Si2 series, you’ll experience the best-in-class performance, decision support, fleet management, and enterprise data integration available.
Pressurized Leak Detection with Cost Quantification
Detects industrial gas and compressed air leaks while estimating leak rate and annual cost to prioritize repairs and savings.
Partial Discharge Detection with Severity Assessment
Provides on-camera severity assessment and type classification to support faster electrical PD evaluation and safer decision-making.
Mechanical Fault Detection
Identifies early bearing issues to help prevent unplanned downtime and costly repairs.
High-Performance Acoustic Imaging for Fast Inspections
124 microphones with automatic frequency tuning, 8× digital zoom, and a 12 MP camera enable confident detection from a safe distance.
Routine Inspections & Preventative Maintenance
Ideal for recurring inspection routes across industrial facilities to identify issues early and reduce unplanned downtime.
Compressed Air & Industrial Gas Leak Detection
Locate leaks quickly, quantify leak rate and cost, and prioritize repairs to reduce energy waste and operating expenses.
Electrical Partial Discharge Detection (High-Voltage Systems)
Identify and classify partial discharge activity to support safer maintenance decisions and reduce risk of failure.
Mechanical Fault Detection (Bearings & Rotating Equipment)
Detect early bearing faults to plan repairs proactively and avoid costly equipment downtime.
Safety & Compliance Support
Helps teams identify potential hazards in gas systems and rotating assets to support safer operations and inspection standards.
| Feature | Details |
|---|---|
| Acoustic Sensor | 124 low-noise MEMS microphones with real-time sound visualization |
| Detection Range | 0.3 m to 200 m (1.0 ft to 656 ft) |
| Frequency Range | 2–130 kHz bandwidth |
| Directional Resolution | From 1° up to 0.125° |
| Leak Detection | Automatic leak recognition with estimated leak size and annual cost |
| Leak Rate Sensitivity | Detects as low as 0.0032 l/min from 2.5 m and 0.0044 l/min from 6 m |
| Gases Detected | Detects pressurized gases; quantifies compressed air, ammonia, argon, CO₂, helium, hydrogen, methane, natural gas, and nitrogen |
| Partial Discharge Detection | AI-based severity assessment with recommended actions and type classification |
| Mechanical Fault Detection | Mechanical fault mode for early identification of bearing issues |
| Digital Camera | 12 MP color camera; 75° diagonal field of view |
| Zoom | 8× digital zoom |
| Video Performance | Digital camera: 60 fps; acoustic image: 30 fps; screen: 70 fps |
| Display | 5-inch touchscreen (1280 × 720) |
For specialized needs, you can choose from additional models: opt for the Si2-LD for advanced leak detection and mechanical fault detection applications or select the Si2-PD for your electric utility applications. Explore these models in the related products section below to find the perfect fit for your requirements.
