LC-5000
Powerful Leak Noise Correlator
Enigma® pinpoints leaks others miss—smart, powerful, and built to listen where it matters most.
Enigma® is an advanced digital correlation logger designed to accurately locate leaks in buried water pipes. By combining noise logging and noise correlation in a single operation, it streamlines the leak detection process and boosts operational efficiency. Ideal for both temporary and semi-permanent deployments, this “Lift and Shift” solution is a versatile tool for water network surveys. Enigma® features powerful 24-bit data processing and analysis, giving it a proven edge in detecting difficult leaks that other systems often miss. Its ability to take and analyze three distinct sound samples allows it to differentiate between regular consumer usage and non-revenue water loss, delivering highly reliable leak detection results.
Trouble free deployment
Enigma correlating leak noise loggers are deployed at multiple positions, typically on valves or hydrants, during normal working hours. They may be programmed for either daytime or night-time operation.
MULTI-POINT NETWORK CORRELATION
Enigma® loggers are deployed at multiple positions, typically on valves or hydrants, during normal working hours. They maybe programmed for either daytime or night-time operation. The loggers record the actual leak sound. When retrieved the leak sound is transferred to the host software where it is processed to display all leak positions between loggers. Programming and data readback utilises optical and USB communications to ensure rapid operation.
OPTIMUM LEAK SENSING
Overnight use provides ideal conditions for leak detection. This is because background acoustic noise from traffic, water usage and other sources, is lowest and, at the same time, water system pressure can be higher which greatly aids leak sound propagation.
TECHNICAL SPECIFICATIONS
Additional information
| Main Processor Unit Operating Temperature Range | -10º to 140º |
|---|---|
| Main Processor Unit External Dimensions | 10.7 inches (W) x 7.0 inches (D) x 3.2 inches (H) |
| Main Processor Unit Weight | Approx. 4.8 lb. (with batteries) |
| Main Processor Unit Battery | Lithium Ion (rechargeable) |
| Main Processor Unit Continuous Operating Time | 8 hours minimum (at 20°C, backlight OFF) |
| Main Processor Unit Minimum Operating Voltage | 4.2V |
| Main Processor Unit Input | Radio x4 or Cable x2 |
| Main Processor Unit Display | 7-inch TFT LCD with touch screen |
| Main Processor Unit Operation | Polarity correlation |
| Main Processor Unit Td Range | ±50ms, ±100ms, d200ms, ±400ms, ±800ms, ±1600ms, 32000ms or automatic setting |
| Main Processor Unit Time Resolution | 25 µs (in ±50ms range), 50 µs (in ±100ms range) |
| Main Processor Unit Filter Range | THRU, 80Hz to 5,000Hz (4 low and 4 high) |
| Main Processor Unit Notch Filter | OFF, 50Hz, 60Hz |
| Main Processor Unit Auto Filter | Automatically selected from FFT operation |
| Main Processor Unit Data Memory | 100 correlations |
| Main Processor Unit FFT Monitor | 1kHz, 2.5kHz, 5kHz (common to both channels) |
| Main Processor Unit Sound Memory | For 16 seconds |
| Main Processor Unit External Interface | Antenna, Headphone, Power Switch, Cable, RS-232C |
| Red, Blue, Yellow and Green Pre-Amplifiers Temp Range | -13º to 140º F |
| Red, Blue, Yellow and Green Pre-Amplifiers Applicable Standard | IP68 (weather tight) |
| Red, Blue, Yellow and Green Pre-Amplifiers External Dimensions | 3.14 inches (D) x 7.2 inches (H) |
| Red, Blue, Yellow and Green Pre-Amplifiers Weight | Approx. 6.3 lb. (with batteries) |
| Red, Blue, Yellow and Green Pre-Amplifiers Battery | Lithium Ion (rechargeable) |
| Red, Blue, Yellow and Green Pre-Amplifiers Continuous Operating Time | 10 hours minimum (at 20ºC, backlight OFF) |
| Red, Blue, Yellow and Green Pre-Amplifiers Input | Input Frequency Range: Input Sensitivity: Signal to Noise Ratio: |
| Red, Blue, Yellow and Green Pre-Amplifiers Radio Communication System | Output Frequency: Modulation: Output Power: Output Impedance: |
| Sensors Operation Modes | Correlation / Relay / Logger / Relay+Correlation |
| Sensors Sensitivity Settings | 2.0 (1 to 20) Steps Manual & Auto |
| Sensors Filter Setting Modes | Common / Through |
| Sensors Recording | Audio signal recording (300 seconds, logger mode only) |
| Sensors GPS Function | Transmit position coordinates & elevation to the Main Unit |
| Sensors Weight | 2.2 lbs. |
