HERTZINNO 온라인 DGA 모니터링 시스템은 변압기 상태 모니터링 및 조기 고장 진단을 위해 지속적인 용존 가스 분석을 제공합니다.
이 시스템은 용해된 결함 가스, 수분, TDCG 및 가스 변화율 추세를 추적함으로써 운영자가 고장이 발생하기 전에 과열, 방전, 아크 및 절연 열화를 식별할 수 있도록 지원합니다.

모델

HZ-DGA-900

제품 유형

온라인 DGA 모니터링 시스템

측정 방법

향상된 PAS + 광자 분광법

측정된 매개변수

H2, CH₄, C2H₆, C2H₄, C2H2, CO, CO2, O2, H2O

측정 주기

1시간

변압기 액체형

미네랄 오일 또는 에스테르 액체

석유 샘플링

진공 가스 추출

보호

IP55; IP56/IP66 맞춤 설정

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HA3 handheld acoustic camera for field inspection.

HA3 is a handheld acoustic imaging camera designed for industrial inspection. It uses a 144-channel MEMS microphone array and AI beamforming algorithms to visualize ultrasonic sound sources and help engineers locate gas leaks, partial discharge and abnormal mechanical noise. It is suitable for power, oil and gas, manufacturing, data center and heavy industry inspection workflows.

144

Digital MEMS microphones for high-density acoustic imaging.

2kHz–150kHz

Wide frequency bandwidth for audible and ultrasonic inspection.

0.3–210m

Operating distance for close-range and long-distance inspection.

<1kg

Lightweight handheld design for field maintenance teams.

Applications

Where HA3 is used

HA3 is suitable for portable inspection tasks where engineers need to quickly find and document sound-based faults.

Power

Substation & Grid Inspection

Inspect partial discharge, corona and abnormal electrical sound sources in substations, switchgear and power assets.

Oil & Gas

Leak Inspection

Locate pressurized gas leaks, compressed air leaks and abnormal acoustic sources around valves, flanges and process units.

Data Center

Electrical Room Inspection

Inspect electrical cabinets, switchgear, cooling equipment and cable areas for abnormal acoustic sources.

Manufacturing

Plant Maintenance

Detect compressed air leaks, mechanical noise and abnormal sound sources in production and maintenance areas.

Heavy Industry

Equipment Troubleshooting

Inspect motors, fans, pumps, conveyors and rotating machinery in high-noise industrial environments.

Product Family

Acoustic Imaging Cameras

Compare HA3 with HA3T, HA3LX and fixed online acoustic cameras for different inspection workflows.

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From ultrasonic sound to visual inspection evidence.

HA3 series acoustic camera combines a high-density MEMS microphone array, beamforming algorithms and optical image overlay. The camera captures sound arrival differences, calculates the sound source direction and displays the result as an acoustic heatmap over the visual image.

HOW IT WORKS

01

Sound Capture

144 digital MEMS microphones capture audible and ultrasonic sound signals from the target area.

02

Beamforming

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

03

Visual Overlay

Acoustic heatmaps are displayed over HD optical images for intuitive source localization.

04

Inspection Output

Engineers can capture images, videos, annotations and inspection records for maintenance reporting.

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Technical Specifications

Core HA3 specifications

Key parameters from the HA3 product specification for inspection range, acoustic performance, imaging, storage, power and field operation.

Microphone Array

144 digital MEMS microphones

Frequency Bandwidth

2 kHz – 150 kHz

Localization Accuracy

±1°; space resolution ≤1 cm @ 1 m, 40 kHz

Operating Distance

0.3 m – 210 m

Detection Applications

Partial discharge detection, gas leakage localization and mechanical noise detection

Optical Camera

13 MP; 72°±3° FOV; 4K photo image resolution

Display

5-inch touch screen, 1920×1080P display resolution

Storage & Data

128 GB storage; USB, Wi-Fi and Bluetooth data transmission

Battery

Two rechargeable Li-ion batteries; 3.5h Normal mode, 7h Standby mode

Protection & Environment

IP54; working temperature -20°C to 55°C; weight less than 1 kg

Choose the right HA3 series model

HA3 is the general handheld acoustic camera. Choose another model when your workflow requires thermal imaging, methane verification or online fixed monitoring.

HZ-DGA-900 Online DGA Monitoring System FAQ

Common questions about online dissolved gas analysis, transformer fault diagnosis, 9-gas monitoring, moisture measurement and maintenance-free DGA operation.

What is HZ-DGA-900 used for?

HZ-DGA-900 is used for online transformer condition monitoring. It measures dissolved fault gases and moisture in transformer oil to support early fault detection, insulation assessment and asset health monitoring.

Which gases does HZ-DGA-900 measure?

HZ-DGA-900 measures hydrogen, methane, ethane, ethylene, acetylene, carbon monoxide, carbon dioxide, oxygen and moisture.

Does HZ-DGA-900 need carrier gas or calibration gas?

No. HZ-DGA-900 is designed for maintenance-free operation without carrier gas or calibration gas consumables.

What is the measurement cycle?

The standard measurement cycle is 1 hour for optical measurement.

What transformer liquids are supported?

HZ-DGA-900 supports mineral oil and ester liquids, including synthetic ester transformer liquids.

Which communication protocols are supported?

HZ-DGA-900 supports Modbus RTU through RS485, and Modbus TCP can be supported according to configuration.

Need help choosing the right acoustic camera?

Tell us your inspection target, working distance, environment and fault type. HERTZINNO will help you choose the right HA3 series model and inspection workflow.

Tell Us Your Target

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PRODUCTS: Acoustic Imaging Cameras; Voiceprint Products; Transmission Line Monitoring; Optic Fiber Sensing

Contact Us: Greenland Mtown, No. 515, Huanke Road, Pudong District, Shanghai, China; info@hertzinno.com

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