The UNI-T UT568B Professional Acoustic Imager sets a new standard in industrial inspection technology by combining cutting-edge acoustic imaging with intuitive operation.

This advanced device visualizes invisible acoustic phenomena through its high-definition display, pinpointing gas leaks and partial discharges with unprecedented accuracy.

Featuring 138 high-sensitivity digital MEMS microphones and extended detection range up to 150 meters, the UT568B transforms complex sound data into actionable insights. Its adjustable bandwidth (2kHz to 100kHz) means you can filter out ambient noise and focus precisely on problem areas, whether you're inspecting power transmission equipment, pressurized systems, or industrial pipelines.

Engineers and maintenance professionals across industries rely on the UT568B's ability to detect and visualize issues before they become catastrophic failures, dramatically reducing downtime and maintenance costs while enhancing workplace safety.

• High-Precision Sound Source Localization with 138 built-in low-noise MEMS microphones in a sophisticated array configuration
• Extensive Detection Range from 0.3m to 150m for comprehensive inspection capabilities
• Adjustable Bandwidth capturing acoustic spectrum from 2kHz to 100kHz to isolate specific frequencies
• Intelligent Partial Discharge Detection identifying corona, floating, and surface discharge types in high-voltage systems
• Multiple Visualization Modes including single source, multiple source, and hologram for complete acoustic imaging
• Real-Time Data Recording with snapshot and video capabilities for documentation and analysis
• Focus Mode that concentrates acoustic imaging in small areas to reduce interference from other noise sources
• Dynamic Range Adjustment making it easier to identify even tiny leaks
• Advanced Analysis Software supporting time-domain waveform, frequency spectrogram, and PRPD pattern analysis
• Integrated LED Lighting for clear visibility in dim environments
• Extended Battery Life with two detachable & rechargeable Li-ion battery packs
• Rugged, Ergonomic Design for comfortable use in industrial environments

Professional-Grade Acoustic Detection System

The heart of the UT568B is its array of 138 high-sensitivity digital MEMS microphones. This sophisticated arrangement provides unmatched precision in sound source localization, delivering exceptional detail in acoustic imaging. The microphone array captures sounds in a wide range of frequencies and pressure levels (from <20dB to >120dB), ensuring you never miss critical audio signals regardless of the industrial environment.

Industrial facilities are noisy places, which is why the UT568B features a 64dB signal-to-noise ratio and adjustable bandwidth capabilities. By isolating sounds within specific frequency ranges, you can effectively filter out background noise and focus exclusively on the acoustic signatures of leaks or discharges. This targeted approach significantly reduces false positives and increases inspection efficiency.

Advanced Visualization Capabilities

The UT568B transforms invisible sound data into intuitive visual information through its 4.3" touch display screen. The system offers multiple display modes to suit different inspection needs:

• Full-View Display: Provides a wide field of vision (60°H x 40°V) ideal for large-area screening of partial discharge and gas leakage
• Focusing Display: Concentrates the acoustic imaging cloud map within a small range to reduce interference from other noise sources
• Single Sound Source: Shows only the loudest sound pressure level source
• Multiple Sound Source: Displays several sound sources with relatively high pressure levels
• Hologram Mode: Visualizes all sound sources above a specified threshold

These visualization options, combined with the dynamic range adjustment feature, allow you to customize the display according to the specific inspection task, whether you're doing preliminary surveys or detailed fault analysis.

Intelligent Partial Discharge Detection

Electrical infrastructure requires regular monitoring for signs of partial discharge, which can indicate impending insulation failure. The UT568B excels at detecting and classifying discharge types:

• Corona Discharge: Locates ionization of air around conductors
• Floating Discharge: Identifies discharges occurring in voids between insulation layers
• Surface Discharge: Detects tracking along insulation surfaces

By accurately identifying the type and severity of discharge events, maintenance teams can prioritize repairs and replacement schedules based on actual equipment condition rather than arbitrary timelines.

Precision Gas Leak Detection

The UT568B identifies gas leaks with remarkable sensitivity, capable of detecting leakage rates as low as >0.15m/s (at 0.5MPa, 0.5m) and >0.2m/s (at 0.5MPa, 1m). This exceptional sensitivity translates to significant cost savings in compressed air systems, industrial gases, and refrigeration equipment.

The system doesn't just find leaks—it quantifies them. The built-in calculation features estimate leak rates and annual cost implications, providing tangible financial metrics that justify inspection programs and repair initiatives.

Comprehensive Analysis Tools

Modern maintenance programs demand data-driven decision making. The UT568B supports this approach with robust analysis capabilities:

• Time-Domain Waveform Analysis: Examine how acoustic signals change over time
• Frequency Spectrogram: Visualize the frequency components of detected sounds
• PRPD Pattern Analysis: Identify partial discharge characteristics through phase-resolved patterns

These analytical tools transform the UT568B from a simple detection device into a comprehensive diagnostic system that helps professionals not only find problems but understand their root causes.

Professional Applications

Power Transmission & Distribution

Electrical infrastructure professionals rely on the UT568B to identify partial discharges in high-voltage equipment before they cause catastrophic failures. The system's ability to detect and classify corona, floating, and surface discharges at safe distances (up to 150m) allows inspection teams to:

• Examine substation equipment while maintaining safe clearances
• Inspect overhead transmission lines without service interruption
• Identify insulation weaknesses in transformers and switchgear
• Document discharge patterns for trend analysis and predictive maintenance

Industrial Compressed Air Systems

Manufacturing facilities lose thousands of dollars annually through undetected compressed air leaks. Maintenance teams use the UT568B to:

• Conduct regular leak surveys without production shutdown
• Quantify leak rates and associated costs to prioritize repairs
• Document leakage points for maintenance planning
• Verify repair effectiveness through before/after comparisons

Petroleum, Chemical & Process Industries

In hazardous environments where gas leaks present safety and environmental risks, the UT568B provides a non-contact inspection method that:

• Detects valve, flange, and pipe leaks from safe distances
• Maps multiple leak points in complex processing equipment
• Documents leak locations with integrated imaging for repair teams
• Quantifies emission rates for regulatory compliance reporting

Building Systems & Energy Efficiency

Facility managers improve energy efficiency by identifying costly utility leaks:

• Locate compressed air leaks in pneumatic systems
• Find refrigerant leaks in HVAC equipment
• Detect steam leaks in heating systems
• Identify vacuum leaks in process equipment

Display & Camera

• Display: 4.3" Touch display screen
• FOV (Field of View): 60°(H) x 40°(V)
• Digital Camera Resolution: 13MP
• Working Temperature: -20~50°C

Functions

• Discharge Detection Types: Corona, Floating, Surface
• Display Modes: Single, Multi, Hologram
• Threshold Adjustment: Filtering background noise
• LRF (Laser Range Finder): 30m
• Auto Enhancement: Yes
• Photo Capturing/Video Recording: Yes
• Wireless Connection: Wi-Fi & Bluetooth
• Annotation: Text & voice

General Characteristics

• USB: Type-C
• Communication Interface: Data transmission & report generating
• Storage Capacity: 128GB SD card
• Image Format: JPG
• Video Format: MP4
• Audio Format: WAV
• Languages: Chinese, English
• Weight: 1.35kg (Battery Included)
• Dimensions: 163mm×286mm×140mm

Package Contents

• UNI-T UT568B Acoustic Imager (1)
• UT-M23 Li-ion Battery Pack (2)
• Power Adapter (1)
• Type-C USB Cable (1)
• Earpiece (1)
• SD Card Reader (1)
• SD Card (128GB) (1)
• Quick Start Guide (1)

Optional Accessories

UT-M23 Charging Base

• Model No.: UT-M23
• Compatibility: UNI-T UT568B Acoustic Imager
• Function: Convenient charging station for UT-M23 Li-ion Battery Packs
• Features: LED charging status indicators, secure docking mechanism
• Benefits: Ensures continuous operation with minimal downtime by keeping spare batteries charged and ready

Acoustic Imaging System

• Microphone Channels: 138
• Microphone Type: High sensitivity digital MEMS microphones
• Array Plane Size: Approx. 150mm
• Microphone Sensitivity: -26dBFS@1kHz
• Sound Pressure Sensitivity: Lower limit: <20dB / Upper limit: >120dB
• SNR (Signal to Noise Ratio): 64dB@1kHz
• Bandwidth: 2kHz~100kHz
• Sound Sampling Rate: 200kHz
• Minimum Leak Rate: >0.15m/s (0.5MPa, 0.5m), >0.2m/s (0.5MPa, 1m)
• Detection Distance: 0.3~150m
• Acoustic Imaging Frame Rate: 25FPS