AQUASCOPE 3
Operating Manual
JW V 1.3 Date 12/10/2012
Страница 1: ...AQUASCOPE 3 Operating Manual JW V 1 3 Date 12 10 2012 ...
Страница 2: ... Techniques using the hand probe Microphone with Tripod 6 4 5 How to find Leaks with the AQUASCOPE 3 Tripod foot 7 5 The Ground Microphone Geophone 8 5 2 Techniques using the Geophone 8 6 How to find leaks with the AQUASCOPE 3 Geophone 10 7 Aquascope Pocket Microphone 11 8 Wearing the Control Unit 13 9 Operation of the AQUASCOPE 3 14 9 1 The display and the button function 14 9 2 Keyboard function...
Страница 3: ...d noise while focusing on the leak noise The system has a versatile hand probe for direct sounding and leak location on soft ground For the ground microphone or combined locator system a shielded robust ground microphone Geophone with its high performance sensor is available for pin pointing through hard surfaces 1 1 System Components Depending on which AQUASCOPE 3 system was purchased the followi...
Страница 4: ...strength Note In order to save battery consumption please ensure that the cable is disconnected from the amplifier after using the AQUASCOPE 3 3 Connecting the Headphones The headphone is connected to the AQUASCOPE 3 control unit via the 3 5mm stereo socket on the right side of the display There is a volume control on the headphone cable for adjustment for your comfort of sound level Coil any exce...
Страница 5: ... people lag the rod with pipe insulation to reduce wind noise The hand probe is used for direct sounding on pipes and fittings For direct sounding we recommend to use the filter off mode 4 2 Techniques using the hand probe Microphone with Rods The following photos show example methods of using the AQUASCOPE 3 hand probe Fig 5 Hand probe Component Parts Fig 6 Hand probe Assembly using 2 x rod secti...
Страница 6: ...ed against the pipe valve or hydrant Ensure there is no long grass or cables making contact with the stick The electronic listening stick is usually a localization tool used to localize the leak position however when the leak is suspected to be in a pipe under soft ground the electronic listening stick can be used to pinpoint the leak It is preferable to make the hole with an electrically insulate...
Страница 7: ...s found Holes will need to be made at 1 meter intervals when the leak has been located to a 6 meter span 7 Determine which point has the loudest minimum noise 8 Perform a star check moving about 30 cm from this point to all 8 points of a star Each point should have a lower noise than the pin pointed leak position If a point has a louder noise than the centre this could be the correct position repe...
Страница 8: ...rrow down the location to a much smaller area 2 It is best practice to locate the pipe position with a pipe locator 3 Follow the path of the pipe listening for the leak at 1 meter intervals Each sample should last long enough to capture a minimum noise value typically 20 to 30 seconds 4 When the location with the highest minimum noise has been identified use your leakage experience to confirm this...
Страница 9: ...y plug on the cable and the socket of the T Bar Fig 16 T Bar handle for Geophone o 5 2 Techniques using the Geophone Use the Geophone to surface sound and pin point on compact earth concrete and tarmac When sounding on grass use a hand probe or a piece of plywood to act as a sounding board this will help to reduce the tickling sound caused by the blades of grass on the Geophone sensor Fig 18 Screw...
Страница 10: ...g 23 PTO which shows a buried pipe and the Geophone taking readings at regular intervals Use the memory button see section 8 2 to analysis the results and return to the loudest point to confirm the leak Fig 22 sounding using the Geophone on Tarmac Fig 20 sounding using the Geophone on grass with a wooden board Fig 21 sounding using the Geophone on compact earth Fig 19 sounding using the Geophone c...
Страница 11: ... during operation 1 Localise the leak position with noise loggers or an electronic listening stick If a Correlator is available this can be used to narrow down the location to a much smaller area 2 It is best practice to locate the pipe position with a pipe locator 3 Follow the path of the pipe listening for the leak at 1 meter intervals Each sample should last long enough to capture a minimum noi...
Страница 12: ...t or rods The Pmic connects to the control unit by pushing and screwing the binder plug into the Aquascope socket Fig 25 Pocket Mic Handle Trigger There are 2 methods of activating the sound by either pushing the trigger on the handle or the button on the Aquascope 3 control unit Fig 26 Pocket Mic Rods Screw the rods directly onto the Pmic or onto the ground plate to create a listening stick used ...
Страница 13: ...se a rod and are having problems holding the microphone completely still Fig 28 Pocket Mic as a Ground Microphone With or without the ground plate attached the pocket mic can be used to pin point a leak under hard surfaces such as concrete and asphalt Move the Pmic along the path of the pipe step by step to find the loudest point use your leak values and memory recall as a reference See Aquascope ...
Страница 14: ...Waisted Mounted Control Unit Attach the Aquascope3 control unit around the waist using the webbing strap and quick release clips provided The waist band can be adjusted to suit An alternative method of holding the control unit is around the neck using the waist band ...
Страница 15: ...he lower part of the display starting from the left hand side the actual signal strength is indicated in the signal strength bar 5 Minimum noise level On the lower right hand corner the minimum noise level value between 00 and 99 is indicated during a listening session From the moment the listen button is pressed until released the AQUASCOPE 3 automatically samples and records the lowest noise lev...
Страница 16: ...mory 9 2 Keyboard functions Fig 31 AQUASCOPE 3 Keyboard On the front label panel is 5 keys which allow selection and change of the settings at any given moment 1 Volume the 2 blue buttons on the left hand side are for volume control to increase and to decrease 2 Filters the 2 green buttons on the right hand side are to adjust the filters to increase the frequency and to reduce the frequency 3 Memo...
Страница 17: ...or off press the 2 green buttons together simultaneously When ambient noises and background interference disturb the leak sounding survey the operator can switch to the filter on mode This will activate a narrow band pass filter It can be adjusted by using the upper key to increase or the lower key to reduce the centre frequency in order to suppress any unwanted interference and background noise a...
Страница 18: ...a Frequency range of 1 5000Hz 4 The control unit has amplification of 60DB or more 5 The Sensitivity in the hand probe is 15v g or more 6 The Sensitivity in the ground microphone is 20 v g or more 7 The Aquascope 3 has a display showing battery status noise level volume setting and signal strength 8 The center frequency of a band pass filters shown as a numeric value The operator tunes into the ex...
Страница 19: ...adphones Increase headphone volume control No Display Dead batteries Replace batteries No Display Cable fault Replace connection cable Noise Level 25 no sound Cable fault Replace connection cable Corrupt Display Circuit Board Return to Gutermann Sound in 1 earpiece Headphone Replace Headphone Cannot plug in hand probe or Geophone Damaged connection socket Return to Gutermann ...
Страница 20: ...as change overtime the main difference between each cable variant is the plug and socket on the control unit The various types of connector are shown below Fig 29 Type 1 Oldest version Fig 30 Type 2 3way connector Fig 31 Type 3 Latest version Binder Fig 32 Type 4 Australia only ...
