Satir

TVPA-400

The TVPA 400 Acoustic Camera is a compact, lightweight multi‑function inspection tool designed for effortless portability and long on‑site operation.

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Key specifications

TVPA-400 Specifications Model TVPA-400 Infrared Performance Sensor Type Vanadium oxide uncooled detector Resolution 384x288 Pixel Size 12 μm Spectral Range 7.5~14μm NETD ≤ 40mK Focal Length 10.5mm FOV 25.2° x 18.9° Spatial Resolution 1.14 mrad Focus Manual Frame Rate 50Hz Palette Multiple palettes including iron red, white hot, and black hot Image Enhancement Yes Analysis Tool 5 Spots, 5 lines, 5 area boxes Temperature Range -20℃ to 550℃ Measurement Range ±2℃ or ±2% of the reading (whichever is greater) Acoustic Performance Microphone 136-pin digital silicon microphone array Sensitivity -26dBFS@1kHz Frequency Bandwidth 2kHz~100kHz Acoustic Sampling Rate 200 KHz Model TVPA-400 Positioning Distance 0.3-130m (related to sound source signal strength) Positioning Error <0.05m@1m, 40kHz Lateral Resolution <0.20m@1m, 40kHz Minimum Imaging Sound Pressure Level <20dBSPL, frequency-dependent Visible Light Resolution 5 megapixels Visible Light Field of View 60.3°×47.1° Non-contact Ultrasonic Partial Discharge Performance: Resonant Frequency 40±1kHz Detection Dynamic Range -8~68dBμV Sensor Sensitivity -65dB (0dB=1volt/ubar RMS SPL) Detection linearity error: ≤10% Repeatability Error ≤1% Resolution 0.1dB Detection spectrum Supports 3D real-time PRPS spectrum, PRPD spectrum, continuous spectrum, flight spectrum, and pulse waveform spectrum Transient Ground Wave PD Performance Detection frequency band 3～100MHz, bandwidth ≥10MHz Detection dynamic range 0~60dBmV Detection linearity error ≤10% Pulse counting error ≤5% Stability error ≤5% Resolution 0.1dB Detection spectrum Supports 3D real-time PRPS spectrum, PRPD spectrum, and continuous spectrum Other Specifications Operating Temperature -20℃~55℃ Operating Humidity ≤95%, Non-condensing Infrared + Acoustic Imaging Power and Data Interface TYPE-C Partial Discharge Data Transmission Method WIFI Partial Discharge Power Supply Built-in Lithium Battery Partial Discharge Battery Continuous Working Time ≥8 hours Supported Systems Android 9.0 and above Infrared + Acoustic Imaging Product Weight ≤450g (including mobile phone) Partial Discharge Product Weight ≤200g Infrared + Acoustic Imaging Product Dimensions 154x87x61mm Partial Discharge Product Dimensions 105x70x28mm

TVPA-400 Specifications Model TVPA-400 Infrared Performance Sensor Type Vanadium oxide uncooled detector Resolution 384x288 Pixel Size 12 μm Spectral Range 7.5~14μm NETD ≤ 40mK Focal Length 10.5mm FOV 25.2° x 18.9° Spatial Resolution 1.14 mrad Focus Manual Frame Rate 50Hz Palette Multiple palettes including iron red, white hot, and black hot Image Enhancement Yes Analysis Tool 5 Spots, 5 lines, 5 area boxes Temperature Range -20℃ to 550℃ Measurement Range ±2℃ or ±2% of the reading (whichever is greater) Acoustic Performance Microphone 136-pin digital silicon microphone array Sensitivity -26dBFS@1kHz Frequency Bandwidth 2kHz~100kHz Acoustic Sampling Rate 200 KHz Model TVPA-400 Positioning Distance 0.3-130m (related to sound source signal strength) Positioning Error <0.05m@1m, 40kHz Lateral Resolution <0.20m@1m, 40kHz Minimum Imaging Sound Pressure Level <20dBSPL, frequency-dependent Visible Light Resolution 5 megapixels Visible Light Field of View 60.3°×47.1° Non-contact Ultrasonic Partial Discharge Performance: Resonant Frequency 40±1kHz Detection Dynamic Range -8~68dBμV Sensor Sensitivity -65dB (0dB=1volt/ubar RMS SPL) Detection linearity error: ≤10% Repeatability Error ≤1% Resolution 0.1dB Detection spectrum Supports 3D real-time PRPS spectrum, PRPD spectrum, continuous spectrum, flight spectrum, and pulse waveform spectrum Transient Ground Wave PD Performance Detection frequency band 3～100MHz, bandwidth ≥10MHz Detection dynamic range 0~60dBmV Detection linearity error ≤10% Pulse counting error ≤5% Stability error ≤5% Resolution 0.1dB Detection spectrum Supports 3D real-time PRPS spectrum, PRPD spectrum, and continuous spectrum Other Specifications Operating Temperature -20℃~55℃ Operating Humidity ≤95%, Non-condensing Infrared + Acoustic Imaging Power and Data Interface TYPE-C Partial Discharge Data Transmission Method WIFI Partial Discharge Power Supply Built-in Lithium Battery Partial Discharge Battery Continuous Working Time ≥8 hours Supported Systems Android 9.0 and above Infrared + Acoustic Imaging Product Weight ≤450g (including mobile phone) Partial Discharge Product Weight ≤200g Infrared + Acoustic Imaging Product Dimensions 154x87x61mm Partial Discharge Product Dimensions 105x70x28mm

Details

Introduction

The TVPA 400 Acoustic Camera is a compact, lightweight multi‑function inspection tool designed for effortless portability and long on‑site operation. It combines infrared thermal imaging, transient ground voltage detection, ultrasonic partial discharge detection, and acoustic imaging in one device, eliminating the need to carry multiple instruments. Technicians can switch between detection modes instantly, enabling fast, multi‑dimensional analysis of thermal defects, airborne ultrasonic anomalies, and open‑point discharges.

Despite its small form factor, the TVPA 400 delivers high‑definition imaging with stable accuracy, maintaining temperature measurement within ±2°C or ±2% even under fluctuating ambient conditions. Built for substations, distribution networks, and high‑voltage O&M work, it provides true “one‑machine full‑field inspection” performance while remaining easy to carry, easy to operate, and ideal for long‑duration field use.