FLIR Si2a-LD Industrial Fixed Acoustic Imaging Camera for Leak Detection (2–130 kHz)

Acoustic Specifications

Acoustic measurements: 124 low-noise MEMS microphones, real-time sound visualization

Detection threshold:

20 kHz: -19.5 dB

35 kHz: -11.2 dB

50 kHz: -9.8 dB

80 kHz: 12.2 dB

100 kHz: 22.8 dB

Bandwidth: 2–130 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: Detects all gases provided they are under sufficient pressure. Quantifies leak rate costs for compressed air, ammonia, argon, carbon dioxide, helium, hydrogen, methane, natural gas, and nitrogen.

Imaging and Optical

Digital camera: 12 MP Color

Camera field of view: 75° diagonal

Video frame rate: Streaming: 15 fps; Snapshots: 30 fps

Video image resolution: 960 × 540 streaming

Aspect ratio: 16:9

Communication and Connectivity

Network interfaces: M12 x-code 8-pin Ethernet, PoE IEEE 802.3at

Wireless connectivity: Wi-Fi 2.4 GHz / 5 GHz, IEEE 802.11 b/g/n/ac

Supported protocols: TCP/IP, RTSP, MQTT, SMTP, FTP

Data transfer: Video streaming bandwidth: 7.5 Mbps (typical)

Firmware updates: Via configurator tool web interface

Digital I/O: 2-pin output / 2-pin input

Current loop output: 4–20 mA, 8 discrete levels (2 mA resolution)

System Integration and Event Handling

API: HTTP, REST (documentation in the acoustic configurator tool)

Event Triggering: Leak detection and minimum leak size / Leak detection and cost estimation / dB SPL Threshold

Data Formats

Export file: .nlz (compatible with Flir Thermal Studio)

Data messages: .json

Analysis and Reporting

Offline: Flir Thermal Studio (desktop software)

Web Interface: Acoustic configurator tool

Datasheet