Logger Device - Leak-State Evaluation; Logger Device - Noise Histograms Measurement History; Logger Device - Leak Evaluation Measurement History; Logger Device - Scheduled Aqualog Measurement - FCS PCorr+ User Manual

2.7 L D
OGGER EVICE
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 D
OGGER EVICE
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 D
OGGER EVICE
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 D
OGGER EVICE
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 D
OGGER EVICE
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
- L -S E
EAK TATE VALUATION
- N H
OISE ISTOGRAMS
– L E
EAK VALUATION
- S A
CHEDULED QUALOG
- S R
OUND ECORDINGS
8
M H
EASUREMENT
M H
EASUREMENT ISTORY
M
EASUREMENT
(PC + )
ORR ONLY
ISTORY