Enigma5M

COMPACT, LIGHT WEIGHT AND MAINTAINABLE

The Enigma5M advances leak detection with a user-replaceable battery for quick on-site changes, reducing downtime and maintenance costs. Its innovative, lightweight, compact housing improves deployment in underground chambers whilst retaining the robust quality we all know the Enigma for. These enhancements provide greater convenience and flexibility, building on the high performance of the Ovarro Enigma series for water companies.

ACCELEROMETER SENSOR

The Enigma5M sensor is a sensitive acoustic piezoelectric accelerometer, which is coupled magnetically to the pipe. It detects and locates even quiet leaks in metal pipes remotely and very accurately over long distances, meaning fewer loggers are needed per kilometre of network.

ANTENNA BELOW GROUND

The antenna transmits the acoustic signals from the logger coupled to the pipe below ground. Being underground means no planning permission is needed to install transmitters or repeaters, and vulnerable hardware is protected from damage or theft, which can occur on the street. Now with an even greater IP68 rating.

DATA ANALYTICS WITH PATENTED TECHNOLOGY

The Enigma5M is supported by the Ovarro data platform, Atrium. This provides a database, analysis, and online viewing facility for remote leaks in the network, as well as for flow and pressure. It is accessible on any desktop or laptop and displays live and historical data. Indicating accurate leak positions, together with 'street view' visualization of the leak position, helps leakage teams manage their networks.

Leak noise correlation signals are transmitted accurately to the cloud analytics platform, Atrium. Just a 0.1-second fluctuation in the time synchronization of two sound samples can cause a 100-meter error in the location. To calculate the location of the leak accurately, synchronizing acoustic sample signals is critical to pinpointing the position of the leak. Ovarro uses its original patented technique to ensure signals are synchronized and leaks are located with very high accuracy.

The Enigma5M offers quick setup via Bluetooth and the Enigma5 app eliminating the need for the original communications module. Now available with advanced MQTT security ensuring reliable, encrypted data transmission.
British patent number 2555053.

SENSOR

Type

Integral accelerometer

Sensitivity

30V/g

Frequency Range

1 – 2500Hz

Attachment

Magnet Integral to sensor

SAMPLING

Measurement Period

Multiple (user programmed)

Resolution

8, 16-bit

LOCAL COMMUNICATIONS

Type

Bluetooth

Range

15 Meters

Programming

IOS or Android App

COMMUNICATIONS

SIM Type

Nano SIM holder

Transmission frequency (audio+data)

Multiple depending on user programming

Antenna

Penta Band

MODEM

4G (Cat-1 Bis) OR IoT (Cat-1M) with 2G fall back

BATTERY

Type

Lithium Thionyl Chloride (non-rechargeable)

Operating Life

5 years (Based on a single send per day and dependent upon GSM signal strength and retries)

PHYSICAL

Waterproof Rating

Robust GRP enclosure to IP68 (submersible to 4 meters, 4 weeks)

Operating temperature range

-20°C to 70°C

Dimensions (without antenna)

128mm x 50 mm diameter

Weight

291 grams

CORRELATION RESULTS

Data Storage

WAV files stored in Atrium Cloud

Platform

Atrium operating on an internet browser (Chrome recommended)

DATA RETRIVAL

API

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An advanced correlating acoustic leak logger for pinpointing leaks remotely in water networks

Remote correlating noise logger

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