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Permanent Leak Detection System


Permanent Leak Detection System

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									                                                       LEAK DETECTION

                                                   Permanent Leak
                                                   Detection System

                                                   • Problem areas permanently monitored

                                                   • Leakage reduced quickly – and easily
                                                     maintained at low level

                                                   • Low installation cost – simply place
                                                     on fitting

                                                   • Completely non-invasive system – no
                                                     detrimental effects on supply to

                                                   • Fast response to new bursts
                                                     as they occur
Permalog® is the first economically justifiable,
permanently-installed system for detecting         • More cost-effective than traditional
leaks in water distribution systems.                 survey methods

Permalog® enables water suppliers to reduce        • Independent of network structure
leakage cost-effectively to record low levels        (zoning not required but works well
and to maintain these levels at low cost             in conjunction with flow monitoring)
and with improved customer service.
                                                   • Dramatic productivity gain through
                                                     fast coverage of large areas

                                                   • Proven technology – over 50,000
                                                     units deployed worldwide

                                                   • Flexible deployment – can also be
                                                     used as survey tool or "problem

                                                   • Long term, maintenance-free
                                                     operation (for up to 10 years)

                                                   • No specialist labour required –
                                                     "deskills" leak detection
How it Works
Permalog® units are deployed in          module. This module identifies the
areas of the distribution system to      location of units in LEAK mode and
provide continuous monitoring of         thereby the approximate position of
leakage. Easily installed on pipe        the leaks. The data are confirmed
fittings, they are retained in place     audibly, displayed on the LCD
by a strong magnet and are               screen and stored in memory.
battery-powered for up to 10 years.
Loggers are immersion-tested to          Leak locations can be investigated
IP68 and will continue to operate        during, or at the end of, the patrol.
even in flooded chambers.                Data from those Permalog® loggers
No maintenance is required.              in LEAK mode are printed out or
                                         downloaded to a PC, enabling                   Permalog® units are easily deployed.
Each Permalog unit adapts itself
                                         correlation to be
automatically to its environment. As     concentrated on
soon as a possible leak is detected,     areas of interest.
the Permalog® unit enters an alarm       No time is
state and transmits a radio signal to    wasted
indicate a "LEAK" condition. Leak        surveying
characteristics (intensity and           areas
consistency of the sound of the leak)    where
can be transmitted in LEAK only, or      leaks do
in LEAK and NO LEAK mode.                not exist.
Following a rise in unaccounted-for
water, or at standard intervals, a
leakage patrol is carried out in the
area using the Permalog® Patroller                            Permalog® units transmit leak status signals to the Patroller.

Operational Benefits
• Option to monitor 100%                  finding leaks that would                    enabling skilled staff to
  of distribution system                  otherwise be missed                         concentrate on finding "known"
                                                                                      leaks and avoid wasting time in
• Flexible deployment options –         • Eliminates manual sounding
                                                                                      no-leak areas
  permanent, semi-permanent or            methods
  survey (as required by the area)                                                  • Quick and easy to check that
                                        • Operates independently of the
                                                                                      repairs have been carried out
• Finds more leaks more quickly           size, structure or integrity of the
  than traditional methods                area
                                                                                    • Operates continuously for up to
• Responds rapidly to new mains         • Completely non-invasive method
                                                                                      10 years, enabling long term
  bursts, improving service to            with no detrimental effects on
                                                                                      low leakage levels to be
  customers                               supply to consumers
                                                                                      maintained easily
• Automates leak surveying,             • Improves overall detection
  eliminating human error and             efficiency and motivation by
                                                                                     LEAK DETECTION

                                                                               Permanent Leak
                                                                               Detection System

The Permalog® system is supplied
with easy-to-use Windows-
compatible software. A record of the
location of each logger is stored in
a database, so that a geographical
description of the vicinity of each
leak is immediately available during
patrols. The software enables patrol
data to be archived and compared
with previous results to ensure that
repairs have been carried out
between patrols and to identify
new leaks that have occurred.
Reports can be generated to assist
the leakage team in prioritising leaks    A leakage survey can be carried out in hours using the
                                          Permalog® Patroller. Previously it would have taken weeks.
and in following them up correctly.

Data from deployed loggers can be sorted and archived using the Permalog® database software.

Economic Benefits
• Survey costs cut by >90%                • No night work required for
                                            leak surveying
• Dramatic productivity gain - one
  person can survey large areas of        • No specialist skills required to
  distribution main per day                 survey areas

• Record low leakage levels               • Lower leakage level reduces
  frequently attained                       cost of water into supply

• Low installation cost and no            • Demonstrates high technology
  maintenance costs                         benefits to regulators, customers,            Leak information is displayed on the
                                            shareholders and international                Patroller’s LCD screen.
• Rapid payback, with increasing
  profits each year
                                                                           LEAK DETECTION

Technical Specification

Dimensions                                Standard accessories
290mm x 150mm x 82mm                      12V DC power cable with vehicle lighter
Weight                                    interface
1.8kg                                     PC download cable
                                          Printer cable
Construction material
                                          Carry strap
                                          Small antenna for portable use
Environmental protection
                                          Mains-powered charger unit
                                          Programming/download software
Standard antenna
                                          Carry satchel
Magnetically-attached vehicle mounting
antenna with 3 metre connection cable     Transit case
User Interface                            Optional accessories
Membrane keypad with backlit LCD          Interrogation unit for logger diagnostics
Power source                              Replacement battery set
Rechargeable/replaceable battery          Portable printer with cable
12V DC vehicle battery power              Right-angled connector for logger antenna
Communications                            Patroller mounting bracket for
                                          in-vehicle use
Audible LEAK and NO LEAK signals                                                      Permalog® is a Registered
                                          Deployment hook/eye
RS232 serial output to PC, printer                                                    Trademark of Palmer Environmental.
                                          Antenna extension kit for deep chambers
Antenna input                                                                         Patents pending worldwide.
                                          GSM communication module

Dimensions                                Environmental protection
135mm x 60mm diameter (including          IP68
antenna)                                  Operating frequency
Antenna length (Standard)                 Typically 173, 315, 433, 464MHz
55mm (dependent on frequency)             (dependent on national licensing
Weight                                    regulations). Alternative frequencies on
Power source
                                          Signal LEAK/NO LEAK
Internal battery – up to 10 years’
operation (dependent on configuration),   Noise level and spread data (in dB)
replaceable at end of life                Visible LED status indicator
                                          (START, LEAK, NO LEAK)
Construction materials
Hostaform C9021 black case                Configuration
Stainless steel sensor assembly           Independent LEAK/NO LEAK data
                                          transmission intervals

Palmer Environmental is the world leader in the field of leakage
control equipment.
Our product range includes:
• Data loggers for flow, pressure and other parameters
• Leak noise logging, correlation and acoustic systems
• Permalog® – telemetry-based installed leak detection system
• Pressure management systems for controlling PRV operation
• GSM, radio telemetry, land-line and other communications systems
• Integrated network management software
                                                                                                                           Perm DS Issue 4 04/2001 UK

For details of our full product range, or for information on a specific product,
please contact Palmer Environmental or your Palmer representative.
Ty Coch House, Llantarnam Park Way, Cwmbran, NP44 3AW, United Kingdom
Tel: +44 (0)1633 489479 Fax: +44 (0)1633 877857
Email: Website:

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