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Home > Acoustic Imaging Cameras > Online & Fixed Monitoring > HZ-FA-371
  • HZ-FA-371 fixed acoustic imaging camera product view
  • HZ-FA-371 acoustic camera mounted on inspection robot
  • HZ-FA-371 online acoustic camera for partial discharge detection
  • HZ-FA-371 Fixed Acoustic Imaging Camera,HERTZINNO,HZ-FA-371 Fixed Acoustic Imaging Camera for Online Monitoring | HERTZINNO
  • HZ-FA-371 fixed acoustic camera for online monitoring
  • HZ-FA-371 Fixed Acoustic Imaging Camera,HERTZINNO,HZ-FA-371 Fixed Acoustic Imaging Camera for Online Monitoring | HERTZINNO
  • HZ-FA-371 fixed acoustic imaging camera product view
  • HZ-FA-371 acoustic camera mounted on inspection robot
  • HZ-FA-371 online acoustic camera for partial discharge detection
  • HZ-FA-371 Fixed Acoustic Imaging Camera,HERTZINNO,HZ-FA-371 Fixed Acoustic Imaging Camera for Online Monitoring | HERTZINNO
  • HZ-FA-371 fixed acoustic camera for online monitoring
  • HZ-FA-371 Fixed Acoustic Imaging Camera,HERTZINNO,HZ-FA-371 Fixed Acoustic Imaging Camera for Online Monitoring | HERTZINNO

HZ-FA-371 Fixed Acoustic Imaging Camera

HZ-FA-371 is a fixed acoustic imaging camera for 24/7 online monitoring of partial discharge, gas leaks and mechanical noise. Built with 128 MEMS microphones and real-time sound source localization, it supports fixed installation, robot-mounted inspection and integration through Ethernet, HTTP, WebSocket and RTSP.

Microphone Array
128-Channel MEMS
Frequency Range
2kHz ~ 65kHz
Detection Distance
0.3m ~ 50m
Leak Rate
>0.035 L/min @120 kPa from 0.3 m; >0.067 L/min @300 kPa from 3 m; >0.09 L/min @300 kPa from 5 m
Video Resolution
Max 2592*1944 (H.264)
Dimensions / Weight
135mm x 171mm x 48mm / ~750g
Power Supply
DC 12V/3A
Explosion Proof
Ex ib IIC T4 Gb / Ex ib IIIC T80℃ Db
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  • HZ-FA-371 fixed acoustic imaging camera product view
  • HZ-FA-371 acoustic camera mounted on inspection robot
  • HZ-FA-371 online acoustic camera for partial discharge detection
  • HZ-FA-371 Fixed Acoustic Imaging Camera,HERTZINNO,HZ-FA-371 Fixed Acoustic Imaging Camera for Online Monitoring | HERTZINNO
  • HZ-FA-371 fixed acoustic camera for online monitoring
  • HZ-FA-371 Fixed Acoustic Imaging Camera,HERTZINNO,HZ-FA-371 Fixed Acoustic Imaging Camera for Online Monitoring | HERTZINNO

Fixed acoustic camera for continuous online monitoring.

HZ-FA-371 is the standard online acoustic camera for fixed acoustic monitoring. Choose another model when your workflow requires thermal imaging, methane verification or handheld inspection.

128

Digital MEMS microphones for high-density acoustic imaging.

2kHz–65kHz

Wide frequency bandwidth for audible and ultrasonic inspection

Anti-explosion

Ex ib IIC T4 Gb;
Ex ib IIIC T80℃ Db

Leak Rate

0.035 L/min @120 kPa from 0.3 m;
0.067 L/min @300 kPa from 3 m;0.09 L/min @300 kPa from 5 m

What HZ-FA-371 helps engineers detect

Fixed acoustic imaging for continuous sound source localization in industrial monitoring scenarios.
Gas Leak located by Acoustic Camera
Surface discharge on tower
Vibration detected by acoustic camera
Acoustic Camera for Partial discharge detected in substations
Gas Leak located by Acoustic Camera

Gas Leak Localization

Locate pressurized gas and compressed air leaks by visualizing ultrasonic leak emissions on screen.
Surface discharge on tower

Partial Discharge Inspection

Detect and localize partial discharge issues in high-voltage electrical systems with real-time PD type prediction.
Vibration detected by acoustic camera

Multiple Source Detection

Identify multiple acoustic sources in complex environments such as substations, plants and compressor areas.
Acoustic Camera for Partial discharge detected in substations

Robot & Fixed Installation

Install on a fixed structure, wall mount, pole mount or inspection robot for continuous or mobile monitoring.
Support Ethernet, HTTP, WebSocket and RTSP for platform integration, video streaming and remote monitoring.
Applications

Where HZ-FA-371 is used

HZ-FA-371 is designed for fixed 7×24 online acoustic monitoring where operators need continuous sound source localization, partial discharge detection and gas leak awareness.

Power

Substation Online Monitoring

Monitor partial discharge, corona and abnormal electrical sound sources in high-voltage substations, switchyards and fixed grid assets.

Smart Grid

Robot-mounted Inspection

Install the acoustic camera on inspection robots for automated patrols and remote acoustic monitoring in substations and unmanned sites.

Oil & Gas

Fixed Gas Leak Monitoring

Detect and localize compressed gas leaks around valves, flanges, compressor areas, gas handling zones and process equipment.

Manufacturing

Compressed Air Leak Monitoring

Monitor compressed air systems, utility pipelines and production areas for leakage and abnormal acoustic sources.

Data Center

Electrical Room Monitoring

Provide fixed acoustic monitoring for switchgear rooms, UPS areas, power distribution rooms and cooling equipment zones.

Product Family

Acoustic Imaging Cameras

Compare HZ-FA-371 with handheld acoustic cameras, thermal acoustic cameras and explosion-proof fixed acoustic monitoring products.

Fixed acoustic imaging for continuous online monitoring.

HZ-FA-371 captures audible and ultrasonic sound through a 128-channel MEMS microphone array. Acoustic imaging algorithms calculate the direction of sound sources and display the result as an acoustic image. The system can localize partial discharge, identify gas leak sources, estimate leak rate and stream data through industrial communication interfaces.
HOW IT WORKS

01

Sound Capture
128 MEMS microphones capture audible and ultrasonic sound signals from the monitored area.

02

Beamforming
AI beamforming algorithms suppress background noise and focus on target sound sources.

03

Fault Analysis
The system supports partial discharge type prediction, gas leak rate estimation and mechanical noise monitoring.

04

Remote Integration
Monitoring data can be transmitted through Ethernet, HTTP, WebSocket and RTSP for platform integration.
Technical Specifications

Core HZ-FA-371 specifications

Key parameters for fixed acoustic imaging, online partial discharge monitoring, gas leak localization, video streaming, platform integration and industrial field installation.

Product Type
Fixed acoustic imaging camera
Microphone Array
128 channel MEMS microphones
Acoustic Image Resolution
1920 × 1080
Frequency Bandwidth
2 kHz – 65 kHz
Dynamic Range of Sensors
30 dB – 120 dB
Detection Distance
0.3 m – 50 m
Sampling Rate
130 kHz
Camera FOV
72° ±3°
Imaging Frame Rate
25 FPS / 30 FPS
Detection Applications
Partial discharge detection, gas leak detection and mechanical noise monitoring
Leak Rate Detection
>0.035 L/min @120 kPa from 0.3 m; >0.067 L/min @300 kPa from 3 m; >0.09 L/min @300 kPa from 5 m
Video Format
H.264
Video Resolution
2592×1944, 1920×1080, 1280×720, 720×480, 640×480
Transmission
Ethernet / HTTP
Stream Format
RTSP
System Integration
HTTP / WebSocket
Power Supply
DC 12 V / 3 A
Protection Level
IP66 / IP68
Anti-explosion
Ex ib IIC T4 Gb; Ex ib IIIC T80℃ Db
Weight
Approx. 900 g with dust cover
Dimensions
135 × 171.43 × 48 mm
Working Temperature
-20℃ to 70℃
Storage Temperature
-30℃ to 60℃

Note: Installation method, communication protocol and alarm logic should be configured according to the monitoring platform, robot system or fixed site layout.

Choose the right acoustic camera
HZ-FA-371 is the standard online acoustic camera for fixed acoustic monitoring. Choose another model when your workflow requires thermal imaging, methane verification or handheld inspection.
HERTZINNO

HZ-FA-371T

 Acoustic & Thermal
PD & Gas Leak Detection
7*24 Monitoring
ATEX Proof
HERTZINNO

HZ-PA-3

 Acoustic and Methane Laser Sensing
Gas Leak Detection
Online Monitoring
Methane Concentration Measure
HERTZINNO

HA3LX

 Acoustic and TDLAS
Gas Leak Detection
Methane Concentration Measurement
ATEX Proof

Fixed Acoustic Imaging Camera FAQ
Common questions about fixed acoustic imaging, online partial discharge detection, gas leak localization, leak rate estimation and platform integration.

What is HZ-FA-371 used for?

HZ-FA-371 is used for fixed online acoustic monitoring, including partial discharge detection, gas leak localization and abnormal mechanical noise monitoring in industrial environments.

What is the difference between HA3 and HZ-FA-371?

HA3 is a handheld acoustic camera for portable field inspection. HZ-FA-371 is a fixed acoustic imaging camera designed for 24/7 online monitoring, robot-mounted inspection and integration with industrial monitoring systems.

Can HZ-FA-371 detect partial discharge?

Yes. HZ-FA-371 is designed to detect partial discharge in high-voltage electrical systems and supports real-time partial discharge type prediction.

Can HZ-FA-371 estimate gas leak rate?

Yes. HZ-FA-371 supports real-time gas leak rate estimation. The specification lists leak rate detection examples including >0.035 L/min at 120 kPa from 0.3 m, >0.067 L/min at 300 kPa from 3 m and >0.09 L/min at 300 kPa from 5 m.

Can HZ-FA-371 be integrated with monitoring platforms?

Yes. HZ-FA-371 supports Ethernet, HTTP, WebSocket and RTSP, making it suitable for online monitoring platforms, remote inspection systems and robot-mounted applications.

Is HZ-FA-371 suitable for outdoor installation?

HZ-FA-371 supports IP66/IP68 protection and operates from -20℃ to 70℃, making it suitable for industrial and outdoor monitoring environments depending on the installation design.
HERTZINNO

Plan your fixed acoustic monitoring system

Tell us your monitoring target, installation location, working distance, environment and integration requirements. HERTZINNO will help you choose the right model and monitoring workflow.
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