  |
SEPEM 01 |
   |
SEPEM 01 - Stationary Noise Loggers For the Early Recognition
of Leaks in Water Supply Networks |
Click on any image to
enlarge
 |
The longer it takes to identify that a network is leaking
the more revenue is lost and the greater the loss of precious water resources.
In addition to the more conventional methods of leak detection the installation
of permanent noise loggers from the SePem® family of instruments, has proved
to be a cost effective tool in early identification of water loss. By permanently
monitoring sections of the system, which have previously been proven leak
free, SePem® 01 will alert you when a leak does develop.
SePem® 01 is a highly sensitive piezo accelerometer noise microphone and
data logger that transmits its stored information to the Master control
unit via radio. |
|
SePem® 01 - deployment |
 |
SePem® 01 noise
loggers are mounted, by magnetic contacts, onto valves or underground
fire hydrants. The magnet can be mounted on the long or the short side
of the logger body allowing it to be installed horizontally or vertically.
The low profile presented by the horizontal mounting offers great flexibility
and a wide range of installation positions.
The SePem® 01 can fit in particularly tight spaces.
Even with very low clearance heights between the top of the valve and
the underside of the cover. The magnet can be located on the SePem®
01 body eccentrically so it can even fit onto decentralised spindles.
|
|
- The loggers record sound over a defined period, either on a repeat
basis or just the once, (user programmable). The results are transmitted,
at pre defined times, (user decides when best), to the Master.
- At regular intervals, or when an increase in water usage is identified
(increased night line readings), the loggers are interrogated by the
Master from the safety of your vehicle by a “drive by” the
loggers.
- If there is a leak the SePem® 01 will send an alarm which is clearly
indicated on the Master, both visually and audibly. Users require no
special training. There is no PC or post measurement analysis required.
|
|
SePem® 01 - Master |
|
The SePem® 01 - Master is used
to programme and read the loggers’ parameters by a two way radio connection.
All settings are freely selectable by the user. No PC is required
at any point!
It offers even the less experienced operator the ability to receive quick
and reliable leak results due to the simple and intuitive menu structure
combined with the easy to use “jog dial” & soft keys. |
|
SePem® 01 - As a survey tool |
|
The loggers can be programmed to:
- start logging immediately or up to 30 days in the future
- to log continuously, or during a window to best suit your local conditions-
it may not be the best idea to record at 0200-0400 in the nightclub
district but it may be the quietest time in the residential areas
- to log at intervals from 1 second to 1 hour
- to log once and then turn itself off
- to log permanently over 24 hours always storing the minimum noise
level recorded during the last measuring period
- Alarms can be set automatically using a built in algorithm or programmed
by the user. This means that meaningful reading can be taken over just
one night
|
|
Online real time noise measurement |
|
The SePem 01 uses bi-directional
radio communication which means an online real time noise level can be seen
without getting out of the safety of your vehicle.
This function can be used to decide if a measuring point is suitable prior
to leaving a logger in position; if the measuring point is reading high
levels before you put the logger out it is probably already leaking! |
|
Patrol or “drive-by” information |
|
The SePem® 01 - Master is used
to programme and read the loggers’ parameters by a two way radio connection.
All settings are freely selectable by the user. No PC is required
at any point!
It offers even the less experienced operator the ability to receive quick
and reliable leak results due to the simple and intuitive menu structure
combined with the easy to use “jog dial” & soft keys. |
|
SePem® 01 - Master |
|
The SePem® 01 - Master is used
to programme and read the loggers’ parameters by a two way radio connection.
All settings are freely selectable by the user. No PC is required
at any point!
It offers even the less experienced operator the ability to receive quick
and reliable leak results due to the simple and intuitive menu structure
combined with the easy to use “jog dial” & soft keys. |
SEPEM
01 Features |
|
Features Master |
|
- Innovative information handling concept by "jog
dial" and soft keys as well as intuitive menu guidance SePem®
01-Master
- Flexible carrying options with fold out supporting
handle
- Visual (red flashing light & display) & audible
warning of leak for vehicle drivers attention
- Large internal memory
- List of any “missed” loggers from “drive-by”
patrol
- Strongest frequency of recorded “noise”
is displayed
- Powered by 4 rechargeable or disposable batteries:
AA - R6, or by 12V DC, from cigar lighter, or hard wired
- Operation from the 12 V supply of the car by direct
cable link
- Operating time min. 8 hours when rechargeable batteries
are used
- Protection according to IP 54
- Operating temperature: -10 °C ... +50 °C
- Storage temperature: -20 °C ... +70 °C
- Weight approx. 1 kg
- Dimensions (W x D x H) in mm: 148 x 57 x 205 (253
with handle)
- Vehicle mounting bracket available
|
|
Features SePem® 01 Logger |
|
- Tough & durable polished die-cast aluminium housing
- Mechanical damage highly unlikely
- Gold plated aerial connection- Uninterrupted radio
transmissions, even out of deep boxes,- Does your current logging technique
miss loggers or do you often have to leave your vehicle to read them?
- No rust magnets - clearer noise path for microphone;
improved sensitivity
- Horizontal or vertical installation. Attachment is
by a magnet in a sliding track which means it can even fit into boxes
with eccentric valves
- Digital high-performance radio transmission
- Bi-directional communications - errors in transmission
are automatically corrected
- Power supply by built-in Lithium battery
- Operating time: typically 5 years, with daily radio
transmission (with radio transmission set to once a week this time increases
significantly)
- Protection according to IP68 (submersible down to
1 m)
- Dimensions (W x D x H) in mm: 108 x 51 x 50
- Installation depth horizontal in mm: 67
- Installation depth vertical in mm: 125
|
