Advantages of ZCorr Digital Correlating Loggers over other Loggers

ZCorr Loggers download the actual leak sounds recorded at each logger to the user's computer

Loggers can be use in "Short Duration" mode with only 2 loggers as a sub for a correlator. Deployment and retrieval only takes 15-20 minutes and the results are as accurate as any correlator.

Loggers perform leak correlations at the very quietest times (late at night when usage and traffic is at minimum). Smaller leaks can be pinpointed exactly. They can turn ON automatically 3 times late at night in the "Overnight Survey" mode.

Loggers can be used "Overnight" in groups of 8, 16, 24 or more to intensively survey a section of the city. Windows-based PC software which includes built-in GIS mapping software included.

Read PDF White Paper here.

ZCORR OVERVIEW

Planning:
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.

Deployment:
ZCorr is flexibly designed for a variety of deployment strategies: One Night - One Zone, Multiple Nights - One Zone and Multiple Nights - Multiple Zones.  Deployment is planned by you either in the office or in the field, working from your distribution system maps.

Deployment Scenario:
Start: Enter the location of each Digital Correlating Logger (DCL); navigate the digitized map and click to place DCL at its location.  DCLs are typically placed 400 to 4,000 feet apart depending on the environment.

Finish: A printed ZCorr Work Order directs field personnel to place DCLs on specific valves or other pipe fittings.

Download: The next morning field personnel replace the DCLs in their Docking Station.  The Docking Station connects to your desktop PC, laptop, or rugged mobile computer via a USB or serial link.  Nighttime data recorded by the DCLs is transferred to the PC; permanently stored; and analysis is automatically performed, pinpointing the locations of any leaks present.

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

Summary: Shows a zone map with all DCLs and a summary table with all significant correlations and exact locations of pinpointed leak noises.

Report: Prints a full report of the ZCorr for analysis of the entire zone.

PURCHASE ZCORR LEAK LOGGERS

ZCORR SPECIFICATIONS

Digital Correlating Logger (DCL)

• Enclosure: Aluminum, cylindrical
• Protection: IP68 - fully submersible
• Weight: 1 lb (450 grams)
• Dimensions: 4.5" x 2.25" (HxD)
• Mounting: Magnet, 40 lbs (18 kg) pull force
• Operating Temperature Range: -20 to +140 degrees F (-30 to +60 degrees C)
• Power Source: Lithium battery, 5 yr life, factory-replaceable, non rechargeable
• Sensor: High resolution electronic accelerometer, Shockproof to 6,000 g; Sensitivity: 1 V/g; Resolution: 0.25 ug/sqHz
• Data Acquisition: Frequency range: 1-3,000 Hz; Signal Range: Sub 1 ug - 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"
• Operating Temperature: 20 to 140 degrees F
• Capacity: 3-8 DCLs
• PC Link: RS-232