The FLIR Si2-LD is an industrial acoustic imaging camera designed for pressurized leak detection and mechanical fault detection. It detects, locates, and measures compressed air and gas leaks — including bearing fault detection — from up to 200 m (656 ft) away, with built-in measurement and cost analysis for industrial gases.
- Detects, locates, and measures compressed air and gas leaks, including bearing fault detection, from up to 200 m (656 ft) away.
- Built-in measurement and cost analysis for industrial gases including ammonia, hydrogen, CO2, methane, helium, and argon.
- One-handed operation with automatic tuning, 8x zoom, and a 12 MP digital camera.
- Mechanical fault mode with automatic selection and filter optimization for finding critical mechanical issues such as bearing faults.
- Fleet management functionality for efficient tool usage and maintenance across large-scale operations.
| Specification | Value |
|---|---|
| Acoustic Measurement | 124 low-noise MEMS microphones, real-time sound visualization |
| Detection Threshold | 20 kHz: -15 dB SPL / 35 kHz: 4 dB SPL / 50 kHz: 10 dB SPL / 80 kHz: 36 dB SPL / 100 kHz: 51 dB SPL |
| Bandwidth | 2 kHz to 130 kHz |
| Directional Resolution | From 1° up to 0.125° |
| Operating Distance | From 0.3 m (1.0 ft) up to 200 m (656 ft) |
| Leak Localization and Detection | Automatic leak recognition including estimated leak size and annual cost |
| Leak Rate Detection Threshold | 0.0032 l/min from 2.5 m, 0.0044 l/min from 6 m |
| Gases Detected | Compressed air, ammonia, argon, carbon dioxide, helium, hydrogen, methane, natural gas, nitrogen |
| Other Acoustic Analysis Modes | Mechanical fault detection |
| Digital Camera | 12 MP color |
| Camera Field of View | 75° diagonal |
| Video Frame Rate | Camera: 60 fps / Acoustic image: 30 fps / Screen: 70 fps |
| Zoom | 8x Digital zoom |
| Video Image Resolution | 1280 × 720 |
| Display | 5 in, 1280 × 720, resistive touch screen, TFT LCD, MIPI DSI |
| Integrated Flashlight | LEDs, two modes: ON / OFF |
| Online Analysis | FLIR Acoustic Camera Viewer (cloud service) |
| Offline Analysis | FLIR Thermal Studio (desktop software) |
| Data Transfer | Wi-Fi 2.4 GHz and 5 GHz IEEE 802.11.b/g/n/ac, USB memory stick, Acoustic USB Adapter Cable |
| Camera Software Update | Automatic OTA wireless update or via USB |
| Still Image Format | .nlz and .jpg |
| Video Recording & Format | Up to 5 minutes (.nlz format) |
| Storage, Internal | 128 GB (SD card) |
| Storage, External | USB 8 GB, unlimited cloud storage |
| Image Annotations | Image tags, comments, and GPS coordinates |
| Camera Power Input | Nominal 12 V DC / Max input: 17 V DC, 3.3 A |
| Battery | Li-Ion rechargeable pack (RRC 2054): 14.4 V DC, 3.45 Ah, 49.68 Wh / Usage up to 2.5h / Charge time approx. 2h |
| Battery Charger | Input: 19–26 V DC, 2.8 A / Max output: 17.4 V DC, 4.8 A |
| Operating Temperature Range | -10°C to 50°C (14°F to 122°F) |
| Storage Temperature Range | -20°C to 50°C max (-20°C to 25°C recommended) |
| Relative Humidity | 0–90% recommended |
| Ingress Protection | IP54 |
| Camera Size | 184 x 276 x 167 mm (7.2 x 10.8 x 6.5 in) |
| Camera Weight | ~1.2 kg |
| Battery Size | 85 × 77 mm (RRC2504) |
| Battery Weight | ~0.25 kg |
| Total Weight | ~1.45 kg (camera + battery) |
| Packaging, Contents | Camera, battery (2 ea), battery charger, power cable (4 ea), neck strap, hard transport case, license card, printed documentation, USB memory stick |