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Enigma Digital Multi-Point Correlator

Manufacturer: Ovarro
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Enigma® – Digital Multi-Point Correlation System for Leak Detection Enigma® is a next-generation digital correlation system designed for highly accurate leak detection in buried water pipelines. The loggers are installed at multiple locations — typically on valves or hydrants — and can be programmed to operate during either day or night. The system combines noise logging and correlation analysis into a single process, significantly improving detection efficiency and reducing the need for costly night-time operations. Each logger records in three sample periods, allowing clear distinction between continuous leak noise and normal water usage. Key Features: Exceptional accuracy even in challenging environments Advanced 24-bit digital correlation with noise filtering Simple setup and fast data retrieval (USB or optical) Long operational life — up to 5 years without battery replacement Automatic velocity detection and unwanted noise suppression Enigma® enables fast, reliable, and precise identification of leak locations between multiple deployed units — helping reduce water loss and maintain efficient network performance without unnecessary excavation work.
Description

Enigma® – Technical Specifications

Frequency Range: 1 – 2400 Hz
Sensitivity: 10 V/g
Attachment: Integral magnet
Sampling Rate: 4860 Hz
Resolution: 24-bit
Number of Epochs: 1, 2 or 3
Epoch Duration: 60 seconds
Maximum Total Recording Time: 180 seconds

Memory and Data Processing

  • Data Storage: 32 MB static RAM

  • Communication Type: Optical data transfer

  • Data Transfer Rate: 2.5 Mbit/s

Power Supply

  • Type: Dual lithium cells

  • Replacement: At factory or authorised service centre

  • Operating Life: >5 years (under standard programming)

Logger Dimensions

  • Size: 104 mm (height) × 59 mm (diameter)

  • Material: Aluminium

  • Ingress Protection: IP68 – fully waterproof (submersible)

  • Operating Temperature: –10°C to +60°C

Host Unit (Communication Case)

  • Communication Type: USB

  • Data Transfer Rate: 2.5 Mbit/s

  • Data Storage Capacity: One session (up to 8 correlations)

Power Supply and Enclosure

  • Power Type: User-replaceable 4-cell alkaline battery pack

  • Material: Ruggedised, high-impact industrial plastic

  • Ingress Protection: IP65

  • Operating Temperature: –10°C to +60°C

Transport Case Dimensions

  • 8 Logger Set: 410 × 325 × 172 mm

  • 3 Logger Set: 270 × 246 × 174 mm

Key Features:

  • High-precision 24-bit acoustic data processing

  • Fast optical communication (2.5 Mbit/s)

  • Waterproof and impact-resistant housing

  • Long operational life (>5 years) without maintenance

  • Suitable for long-term leak monitoring and correlation analysis

Manufacturer: Ovarro (United Kingdom)
Model: Enigma® Correlating Leak Noise Logger System