| Aqua M 100 D Ground Microphone Complete with Electronic Listening Stick |
The Aqua M 100 D Ground Microphone and amplified listening stick is a high quality, high performance leak detection tool. An extremely sensitive shrouded sensor eliminates background noise to pinpoint the leak rapidly. The Aqua M 100 D is designed to perform and operate in the toughest of environments and is capable of withstanding the tough working environment of the leakage engineer. The Aqua M100 D is rugged and reliable, allowing the engineer to focus on his key task of precise leak location.
Leakage noises are emphasised and extraneous ambient noises are further reduced
by sophisticated noise filters. The Aqua M 100 D uses the latest technology
to present functional, easy to use information. A significant help to the user
is the fully automatic data memory feature. A backlit LCD display is clearly
visible during the day and night.
The Aqua M 100 D control unit uses internal rechargeable batteries.
These are charged using an AC power supply with the integral charger lead provided
.
Aqua M 100 D Components
All the Aqua M 100 D components, including the Electronic Listening stick, are contained in a strong Aluminium transit case.
In use, the Ground Microphone sensor is spaced from the ground by a cast tripod. The sensor and Headphones connect to the control unit using supplied cables. An adjustable neck strap allows the control unit to be operated in hands free mode.
The operator uses both the Headphones and the Control Unit LCD display to search for a maximum leak noise. The data memory allows easy comparison with previous readings. Leak noise can be highlighted by use of the electronic filters, situated on the Control Unit. This eliminates unwanted background noise.
The carry support handle for the Ground Microphone sensor incorporates a push switch allowing the user to activate the sensor only when required, saving battery consumption.
The Operator's Handbook includes clear, comprehensive instructions in use for the precise location of leaks.
By connecting the Electronic Listening Stick to the Control Unit in place of the Ground Microphone Sensor, the operator can listen for leak noise at access points on the pipe, such as valves, meters, etc. The Electronic Listening Stick breaks down in to three sections for ease of transportability.
Full internal rechargeable battery status is indicated on the Control Unit's LCD display. Twelve-hour usage can be obtained from a fully charged battery. The battery is charged using the supplied mains AC adaptor and charge lead.
AQUA M 100 D SUMMARY
| Stethophone Amplified Listening Stick Kit |
The
Stethophone kit is a simple, lightweight but very effective electronic listening
stick, complete with 4 extension rods, headphones and carry case.
An ideal alternative to a manual listening stick with the headphones helping
to reduce the effect and interference of external ambient noise, such as local
traffic.
| MicroSound - Noise Logger |
The concept of acoustic noise logging has been known and understood for many years and is the recognised way of reducing leakage survey time and increasing performance of leakage engineers but the next generation of noise loggers has now been developed.
The MicroSound system works on a low powered radio principal. The acoustic
loggers are attached to fire hydrants, sluice valves and network fittings, but
now these loggers will send the information directly to a data gatherer mounted
in a vehicle.
The engineer will simply 'drive-by' the loggers at reasonable speed and pick up the signal via the data gatherer. This information can then be downloaded to a PC to be stored or viewed for trend analysis.
We recognise that access to fittings can vary significantly from location to location particulary overseas. We have developed a range of unique accessories specifically designed to greatly improve the flexibilty of noise loggers and overcome both shallow and deep chamber issues.
MicroSound harnesses the 'drive-by concept' to maximum effect. With fast data transfer and long distance receiving, MicroSound is the ideal tool for rapid targeting of leakage areas. This style of acoustic logging has been proved to greatly reduce leakage survey time by focusing efforts quickly and efficiently on known leakage areas.
KEY FEATURES:
Unique accessories to overcome access issues
| MicroSound Leak Localisation System |
MicroSound
is a low cost, leak localisation system, which is designed to identify areas
of leakage with minimal resource and infrastructure development. The system
comprises of two parts; a) the noise logger, which is a highly sensitive microphone
used for collecting acoustic data and transmitting the data via low power radio
signal, and b) the Data Gatherer, which retrieves the information from the noise
logger utilising the low power radio receiver.
The strong magnet on the base of the MicroSound noise logger is simply attached to any access point in the distribution system, such as valves, fittings or pipework, and left in place to record sound levels continuously. The noise loggers are submersible to IP68 specification and are suitable for short or long-term installation in any appropriate chamber.
MicroSound records sound in the pipework continuously during a period of low use, typically a two hour window between 2:00am and 4:00am (the default setting). There are total of 24,000 readings taken which are divided into 30 second segments, the average of the readings in the segment gives a figure. It then takes the lowest 10 readings in the two hour time window and calculates the average of those 10. This information is transmitted to the Data Gatherer. This is done to ensure that the effects of transient and ambient noise, such as valve operation, customer demand, traffic etc. are minimised or ignored and the leak noise only is successfully identified and accurately recorded.
This Data Gatherer has been designed in such a way that the data can be gathered simply by driving by the installed noise logger at an approximate speed of 42kph (30mph) and distance of up to a maximum of 150 metres and as the Data Gatherer receives the data, it displays the following information in the window of the unit:
1. SERIAL NUMBER
The serial number of the logger.
2. MINIMUM LEVEL
The lowest noise recorded in the last time window.
3. HISTORIC LEVEL
The average of the 5 lowest levels recordings which are logged cyclically over
30 days.
4. NOISE QUALITY
0-10 rating indicating quality of minimum noise level recorded during logging
period.
5. LEAK/NO LEAK INDICATOR
An indication of whether or not a leak is present.
6. LOCATION
The serial number/address of the installed noise logger.
The same information is also displayed in a small LCD display that can be attached in a prominent position in the vehicle where the driver can see it without taking his eyes off the road. The operator also receives an audible beep confirming successful receipt of the noise logger data.
It will also allow the operator to make quick decisions in the field if the results show a particularly high leak noise signal which will indicate a large, costly leak.
Unique Accessories
We recognise that valve and meter chambers vary significantly, particularly overseas and we have developed a unique range of accessories to address these issues. The majority of valves and hydrants are less than 1 metre deep and reasonably accessible but as this is not always the case, a selection of accessories is available such as right angle brackets to overcome shallow chambers and a choice of aerials as follows;
d) Standard Stub Antenna 65mm
e) Antenna 325mm, with hinge
f) Antenna 165mm
Where the units are fitted in chambers that are exceptionally deep or difficult to drive near to, a longer aerial can be fitted thus allowing further transmission distances. Use of the 165mm and hinged 325mm antenna increases the transmission range over the standard 65mm antenna by about 70%.
Simple Software
If required the data can then be easily transferred to a computer using the MicroSound host software on return to the office. The host software allows the user to retrieve all the data received by the Data Gatherer and save in a standard CSV (comma separated variable) format. It enables viewing of the data as well as detailed analysis, filtering and sorting the powerful yet simple Excel interface. The enables easy data management and storage of results to pinpoint areas of interest for further investigation.
The analysis of trends enables the water engineer to effectively monitor and manage his leakage levels without the need for costly investment in flow meters.
The increased noise levels accurately and clearly show where pipework in the system has begun to leak. This then pinpoints areas for precise leakage location surveys using the AquaCorr+ leak noise correlator and the ground microphone.
The MicroSound system is used to maximise the efficiency of the Leakage location teams, to ensure the greatest value for money. If used in existing, discrete district meter areas they can be used to refine the leak localisation process or, if there are no district meter area in place, MicroSound can be used as a stand alone alternative system. This avoids the cost of meter installation, infrastructure disruption and altering the hydraulic performance of the network. Typically deployed in groups of 50 to 100, one man is able to quickly survey a large area and give information that allows prioritisation of more costly and skilled manpower resources and equipment.
A key benefit over noise loggers that require retrieving for analysis is that an area can be analysed, repairs carried out and leakage reduction confirmed without expending time on re-deployment, retrieval and analysis. MicroSound noise loggers are considerably less expensive than the temporarily deployed loggers but every bit, if not more, effective.
MICROSOUND - SUMMARY
| MBL 100 Metal Cover Locator |
The
MBL 100 is designed to locate metallic covers that have been covered over by
tarmac, soil or grass etc. up to a depth of about 1 metre. It is of rugged construction
and comes complete with a two year guarantee with CE marks. Its simple, practical
design and ease of use make it attractive to many companies looking for good
quality, yet competitively priced equipment.
Key Features
Summary
| AKTIV Transmitter |
 |
Operation For cables where there is no current flow and for use with non-metallic water and gas pipes the use of "active" mode is selected. This requires the use of the AKTIV signal transmitter which is supplied as a separate item. Connecting the AKTIV transmitter directly to a specific pipeline or service allows the selected item to be traced very accurately. Alternatively, the AKTIV transmitter can be placed on the ground above suspected pipe and cables. It induces a signal that is received by the LO-K8. High and low power outputs are selectable. |
Key Features
Optional Equipment
| LO-K8 Receiver |
Operation
The LO-K8 is a versatile pipe and cable location system. Use the LO-K8 on its
own "power" mode and live cables can be located typically to a buried
depth of 3m if there is sufficient current flow. Switch to "radio"
mode to locate those services which carry a very low frequency radio signal.
This is ideal for tracing telecommunications cables and cable TV network cables.
Detection depths are typically 2m.
For cables where there is no current flow and for use with metallic water and gas pipes the use of "active" mode is selected. This requires the use of the AKTIV signal transmitter which is supplied as a separate item. Connecting the AKTIV transmitter directly to a specific pipeline or service allows the selected item to be traced very accurately. Alternatively, the AKTIV transmitter can be placed on the ground above suspected pipe and cables. It induces a signal that is received by the LO-K8. High and low power outputs are selectable.
Key Features
Optional Equipment
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Environmental
Analytical Systems
286 Mask Island Drive
Barry's Bay, Ontario, Canada K0J 1B0
Phone:
613 756 0101
Toll Free (Canada only):
1 800 427 8591
Fax: 613 756 0909
email: info@enviro-analytical.com
©Environmental Analytical Systems 2003
