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Now you can truly be in control of your leak detection program . . . all from your desktop or field computer.

ZCorr is a network of Digital Correlating Loggers (DCLs) which pinpoint the exact locations of any leaks in one overnight surveillance. The easy-to-use ZCorr software revolutionizes the ease and accuracy of pipeline leak detection and pinpointing.

ZCorr lets the leak detection manager plan the placement of the ZCorr DCLs and analyze and review the overnight recording results - all from the comfort and convenience of the office!


ZCorr is flexibly designed for a variety of deployment strategies:

  • One night - one zone
  • Multiple nights - one zone
  • Multiple nights - multiple zones

Deployment is planned by you, either in the office or in the field, working from your distribution system maps.


Auto Analysis: ZCorr automatically correlates data among all DCLs, pinpointing the map locations of any leak sounds present. Click on any pair of DCLs to see the leak noise correlation.

Listen: ZCorr lets you listen to actual nighttime recorded leak sounds. Click on any logger symbol or leak index bar to hear the leak sound at that map location.

Correlation Results: Click on any thumbnail image to get a detailed analysis: pinpoint multiple leaks; enter pipe information; see logger and leak locations on map.

ZCorr DCLs are locally intelligent. They feature auto-power management (have no on/off switch) and never require user intervention.

ZCorr software has a familiar web browser interface, making it as easy to use as a remote control.

The ZCorr system is expandable from 3 to an unlimited number of DCLs so it can grow with your leak detection program.

With ZCorr a manager can run a leak detection program across pipeline networks anywhere in the world. DCLs can be transported ready to deploy, or setup and deprogrammed remotely, with data access and analysis by internet or email.

ZCorr is fully upgradeable through software, making the latest technical advances available to all users.

PDF of
ZCorr Logger

More ZCorr Information:

What are the Advantages of ZCorr
Field Application of ZCorr Loggers


Digital Correlating Logger (DCL)

Enclosure: Aluminum, cylindrical
Protection: IP68 — fully submersible
Weight: 1 lb (450 grams)
Dimensions: Height = 4.5 inches (11.4 cm) Diameter = 2.25 inches (5.7 cm)
Mounting: Magnet, 40 lbs (18 kg) pull force
Operating temperature range: -20 to +140°F (-30 to +60°C)
Power Source: Lithium battery, 5-year life, factory-replaceable, non-rechargeable
Sensor: High resolution electronic accelerometer; Shockproof to 6,000 g; Sensitivity: 1 V/ g; Resolution: 0.25 µg / sqHz
Data Acquisition: Frequency range: 1-3,000 Hz; Signal range: sub 1 µg - 20 mg; Digital Resolution: 20 bits

Docking Station

Enclosure: Rugged ABS carrying case
Protection: IP68 - closed; IP65 - open
Weight: 15 lbs (6.8 kg) without DCLs
Dimensions: 20.5 x 16.75 x 8.5 inches (52 x 42 x 22 cm)
Operating temperature range: 20 to 140°F (-5 to +60°C)
Capacity: 3 to 8 DCLs
PC link: RS-232

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