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2.7

 

L

OGGER 

D

EVICE 

-

 

L

EAK

-S

TATE 

E

VALUATION

 

The Leak-state evaluation program takes place between 2-4am (although it can be 
changed). Typically, it is made during a time of low water use to reduce the possibility of 
water use by consumers being judged as a leak. During this time if the logger 
determines a change of leak state the logger carries out a secondary confirmation 
evaluation. 

2.8

 

L

OGGER 

D

EVICE 

-

 

N

OISE 

H

ISTOGRAMS 

M

EASUREMENT 

H

ISTORY

 

Whenever a leak-noise evaluation is made, the data for noise histogram is also 
produced. The logger device saves the last 28 leak evaluation histograms. These are not 
time-stamped. Support of download of the histograms is application dependant 

 refer 

to the manual of the application. 

2.9

 

L

OGGER 

D

EVICE 

 

L

EAK 

E

VALUATION 

M

EASUREMENT 

H

ISTORY

 

The logger device saves the last 28 results of its leak-noise evaluations (Noise level, 
Noise-spread summary). These are not time-stamped. Support of download of historic 
measurement data is application dependant 

 refer to the manual of the application. 

2.10

 

L

OGGER 

D

EVICE 

-

 

S

CHEDULED 

A

QUALOG 

M

EASUREMENT

 

The logger device can accept one-off instructions to make an Aqualog (noise histogram) 
measurement (or multiple measurements) of a site. No judgement of leak / no-leak is 
made by the logger following the measurement. The measurement borrows some of 
the memory that the logger uses for storing its regular histogram data. The data in this 
memory is protected from being over-written until the Aqualog results are downloaded, 
then the memory is released for use once more. (i.e. The capacity to store 28 regular 
histograms is temporarily reduced until the Aqualog data has been downloaded). 

Whilst a scheduled measurement is pending, the regular logger activities (over-night 
measurement) is suspended. It will resume once the scheduled measurement is 
finished. 

Refer to your application guide to see if it supports using this feature of the logger. 

2.11

 

L

OGGER 

D

EVICE 

-

 

S

OUND 

R

ECORDINGS 

(PC

ORR

+

 ONLY

)

 

PCorr+ logger devices are able to store one sound recording only, 10 seconds in 
duration as standard but can be extended to 20 seconds for more challenging leaks. An 
automatic new recording is normally made only after a change from a no-leak state to a 
leak-state. To save battery use, the logger only does this once (unless otherwise set), 
and keeps this recording until it is downloaded via the Patroller. Once downloaded, the 

Содержание PCorr+

Страница 1: ...1 User Guide PCorr and Permalog Device description and uses Permalog PCorr MAN 031 0003 A...

Страница 2: ...eak Evaluation Measurement History 8 2 10 Logger Device Scheduled Aqualog Measurement 8 2 11 Logger Device Sound Recordings PCorr only 8 2 12 Logger Device Scheduled Sound Recording PCorr only 9 2 13...

Страница 3: ...s in designing the best leak detection equipment at an affordable price for the benefit of the water companies 1 3 SUPPORT OF PRODUCT This user guide covers the following product families of leak dete...

Страница 4: ...more advanced analysis An Aqualog This is a set of up to 28 histograms made at regular intervals and used to analyse the consistency of noise measurements over a longer period The name originally ref...

Страница 5: ...prise of A set of loggers PCorr or Permalog These typically are set to evaluate the sounds within a pipe overnight when water use is minimal and determine if a leak could be present nearby A Patroller...

Страница 6: ...has a patrol window of 24 hours To compensate for power use the loggers transmit chirps less frequently Loggers with these settings can transmit to a fixed receiver installed near by This is sometime...

Страница 7: ...to the antenna connector alternately flash after swiping Reset of the logger does not erase any measurement history Reset of the logger does temporarily re activate the radio link for approx 2 minute...

Страница 8: ...ice can accept one off instructions to make an Aqualog noise histogram measurement or multiple measurements of a site No judgement of leak no leak is made by the logger following the measurement The m...

Страница 9: ...file and determine when it was made To enable the automatic sound recording feature the loggers must have the Record automatically on new leak control set 2 12 LOGGER DEVICE SCHEDULED SOUND RECORDING...

Страница 10: ...m the factory in an off state in a deep sleep mode where they are almost totally inactive to preserve the life of the battery Before first use they have to be started or woken up This is accomplished...

Страница 11: ...Obtain synchronised sound recordings from several devices for correlation purposes one per PCorr logger The available options from the above list depend on whether they are supported by the app you a...

Страница 12: ...roller being used Note The logger devices must have a patrol window available in order to be able to collect the sound files The files must be collected without a reset of the logger which disrupts th...

Страница 13: ...nts of the pipe noise and evaluates if a potential leak exists The logger device is also set prior to installation to have a patrol window that matches the possible data collection times When within t...

Страница 14: ...have the internal program firmware upgraded over the radio link The process should only be undertaken if advised by HWM The facility to do this may not be implemented on all apps Firmware changes requ...

Страница 15: ...te College PA 6803 800 531 5465 sales fluidconservation com HWM Water Limited This document is the property of HWM Water Ltd and must not be copied or disclosed to a third party without the permission...

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