RD547 water leak detector
Contents
1.2. tone from the RD547 unit that increases in frequency the closer the sensor Is to an area of high hydrogen concentration Alarm threshold Use this control to set the alarm threshold Use the touch screen or Dial 2 to navigate to the control and select it Use the touch screen or Dial 2 to set the alarm value and press Dial 2 to confirm it The scale is from 0 to 1000 digits Zero calibration Use the touch screen or Dial 2 to set zero calibration This sets the current measurement value as the reference value and helps define fluctuating concentrations at different measurement points more clearly The first example shows a measurement of 250 with no calibration The second example illustrates how the display changes when we zero calibrate at 250 in the same location The large numerical value is the relative value 000 the value below it is the absolute value 250 If we now carry out two further measurements which result in absolute values of 300 and 100 the display changes to show relative values of 050 and 000 as follows Any measured value below the reference value displays with a relative value of zero but the absolute values are always the actual measured values Any alarms are triggered on relative values not absolute values Assembly of Accessories Ground microphone Extension tips a Pa abl f J X s wf i Test rod Hydrogen sensor t Universal microphone
3. ency will get higher Be aware that if the measurements are decreasing you may be moving away from the leak Adjusting filter settings We recommend using the preset filters However there may be times when adjusting the filters to focus on the higher frequencies normally found at a leak site is helpful Let s assume the peak is about 300 Hz If we reset the filter to be between 0 and 300 Hz we may no longer be able to detect a leak because we have switched off the higher frequencies However if we reset the filter to be between 320Hz just to the right of the largest part of the spectrum and 500Hz so the high frequency sounds are included and move over the area again Either the numerical value will increase when approaching the leak and the peak will move towards higher frequencies OR if the numerical value is always lower you were already directly on top of the leak with the first measurement Tracer gas detection Following local laws and guidelines fill the pipe with a 95 5 forming gas 95 nitrogen 5 hydrogen When inspection pressure has been reached follow the steps below 1 Attach the hydrogen sensor to the RD547 unit and power it on using Button 1 2 Select Tracer Gas Detection from the Main menu to start the warm up phase which may last up to 3 minutes A progress bar is displayed on the RD547 display see display 3 As this process determines the base levels for measurements it should be done outside in t
4. gh contact with foul water or other contaminants Headphone use you need to remain alert to traffic and other hazards that are normally heard outdoors Always turn the volume down before plugging headphones into an audio source and use only the minimum level necessary to take your measurements Excessive exposure to loud sounds can cause hearing damage Use only the approved headphones which are designed to protect your hearing when using this device A caution Failure to comply with safety cautions can result in damage to equipment or property This is a precision instrument which could be damaged if left unprotected during transport or storage Always use an appropriate case to transport and store this device Do NOT immerse the head of the hydrogen sensor into liquids sludge or fine powder NOTES This equipment is designed for use by competent personnel following procedures and instructions described in the full user manual For comprehensive warning and safety information refer to the full operators manual You are responsible for determining whether you consider the measurement results to be valid and for any conclusions that are reached or any measures that are taken as a result thereof Radiodetection can neither guarantee the validity of any measuring results nor can we accept liability for any such results We are on no account able to accept liability for any damage which may be caused as a consequence of the use of
5. he open air or in a place where you know hydrogen concentration is low 3 Press Button 1 on the control unit to start measuring The record icon alternates between a yellow and white triangle Press the button on the sensor to activate the pump This will speed up the sample intake 4 Press Button 1 on the control unit to capture a measurement on the saved measurements graph A white cross on the record icon indicates that measuring has stopped To restart measuring press Button 1 5 Use the information on the display to identify the area with the higher hydrogen concentration 6 If necessary define alarm thresholds or zero calibrate the unit to assist in identifying hydrogen concentrations Display 3 Tracer gas detection Current measurement and pre set alarm threshold Last six saved measurements toop Calibration and record Alarm threshold zero calibration and acoustic feedback Current measurement This element shows the current measurement The measurement starts when Button 1 is pressed and finishes when it is pressed for a second time The value increases as you get closer to an area with a higher hydrogen concentration and decreases as you move away from it The number recorded is in a range of O to 999 digits but the sensor can detect hydrogen concentrations from 10 to 20 000 ppm The RD547 digital value does not correspond directly to the ppm value The right hand bar represents the current numer
6. ical value and the red horizontal line to the right of it represents the preset alarm threshold Calibration and record During warm up the center icon CJA displays a green progress bar while the sensor self calibrates The left hand icon pulses and turns green once calibration has finished A dotted line appears unless zero calibration has been applied when it displays the absolute value the digital display above it shows the relative value See next section for more information about zero calibration The right hand icon pulses between a yellow and white record symbol when measurements are being taken A white cross appears when stopped Last six saved measurements This section of the screen shows the six previous measurements The most recent measurement Is in position 1 and the oldest in position 6 Each measurement consists of two parts A bar showing the hydrogen concentration numerical value for the hydrogen concentration shown immediately below the bar Alarm threshold zero calibration and acoustic feedback Acoustic feedback These two symbols are on off controls for acoustic feedback JX Use Dial 2 or the touch screen to switch the Dad pA headphone tone on or off This emits a constant high pitch tone through the headphones when over an area of high hydrogen concentration Ve Use Dial 2 or the touch screen to switch the tone P Ny on the RD547 unit on or off This emits a high pitch
7. k N N h A h N A Wa AT P A 4 A N s N V 4 TA IMPORTANT This guide provides basic operation instructions and is intended as a field reference only It also contains important safety information and guidelines and should be read in its entirety before attempting to operate the RD547 Detailed instructions including product specification and troubleshooting information are available in the Operators Manual Radiodetection products including manuals are under continuous development To ensure you have the most up to date information please download the Operators Manual from www radiodetection com gt Radiodetection Getting the RD547 ready for use See the Operators Manual for a full description of acoustic listening devices and RD547 controls functions and menus Insert batteries and attach the headphones and appropriate measuring device to the RD547 Attach headphones gt w Acoustic device connector Hydrogen sensor connector For assembly of accessories see page 12 RD547 controls The buttons and dials have a number of functions depending upon the current activity Button 2 press to cancel or go back Dial 1 turn to control volume press to capture a measurement or hold down to power off Button 1 used to power on and to start measurement Dial 2 turn to navigate menus and screen display or press to select item or setting Main menu Pres
8. n of the screen shows the six previous measurements The most recent measurement is in position 1 and the oldest in position 6 Each measurement consists of four parts A left hand bar showing the noise level A right hand bar showing the smart level A numerical value for the noise level shown immediately below the bars A numerical value for the smart measurement shown below that Filter settings For ground measurements the factory setting is 1 to 1000Hz with a high pass filter of 50Hz and a low pass filter of 400Hz For fittings it is factory set to a range of 0 to 2000Hz with a 200Hz high pass filter and an 800Hz low pass filter It is possible to set a user defined frequency spectrum as described in the Operators Manual When user filter settings are defined all measurements are cleared to ensure consistency across results Microphone settings and frequency spectrum At the bottom of the display are the settings for the headphones frequency spectrum and microphone settings The headphone icon on the left shows the current volume setting for the headphones Selecting this icon also allows the user to change the volume level The microphone icon on the right shows the current sensitivity value for the microphone Selecting this icon allows the user to change the sensitivity level This is ideal when set to 50 In the center the frequency spectrum is shown in color from blue for lo
9. ommended because it uses LL advanced signal processing to indicate whether the frequency and volume measured is consistent with a leak Two other modes are available lu lh Geo for measuring amplitude only 4 tlh PWG for searching for a pipe with an optional pulse 403 wave generator See the Operators Manual for information about the RD547 display when these modes are selected Current measurement This element shows the current measurement The measurement starts when the button on the handle is pressed down and finishes when the button is released It is recommended that the button is held down until any ambient noise which is NOT permanent such as a dog barking or a car passing Is eliminated The number recorded is the lowest noise level taken on a scale of 0 to 99 during this period that is relevant for leak detection This information is also shown in bar form to the immediate right of the number The right hand bar represents the smart indicator In addition to noise levels the smart indicator considers the frequency of the noise measured with an emphasis put on higher frequencies that are normally present at the site of a leak The numerical value of this bar 70 in the above example is displayed below it A high value implies a high likelihood of a leak at the point of that measurement The user is looking for a high noise level and a high smart level 4 Last six saved measurements This sectio
10. rstly the leak is localized to a section of pipe Secondly the exact location is pin pointed Localizing the leak using structure borne noise Identify a fitting meter valve or hydrant near to the suspected leak Attach an appropriate microphone fitting extension tip or magnet to the RD547 and set the filter settings to fittings Ensuring the microphone has contact with the fitting press the button on the microphone handle to record If an external noise source is present e g car passing or dog barking keep the button pressed until the noise has stopped Identify a second fitting location and repeat the process It may be necessary to take measurements on several fittings You can see the results in the saved measurements graph The leak will be located closest to the fitting with the highest measurement Pin pointing the leak using ground borne noise Having localized the leak to a section of pipe it is possible to take some measurements at the ground surface to pin point the leak Attach either the ground microphone or the universal microphone with appropriate tripod to the control unit Set the filter settings to ground Following the direction of the pipe take a few measurements It may be helpful to mark the ground at the points where you have taken measurements so you can return to them later You can see the results in the saved measurements graph As you get closer to the leak the noise will get louder and the frequ
11. s Button 1 to power on the RD547 unit and display the Main menu which has a number of functions see the Operators Manual for full details Turn Dial 2 to navigate to the required function and press to select it There are three Measurement functions on the Main menu Display 1 Main menu Acoustic Measurements which has three modes Smart GEO and PWG see next section Trace Gas Detection Long term acoustic measurements The process of setting parameters and capturing measurements is similar for all three measurement functions For this quick start guide we shall look at Acoustic Measurements and Trace Gas Detection Taking Acoustic Measurements 1 Attach the appropriate microphone to the RD547 unit and power it on using Button 1 2 Select Acoustic Measurements from the Main menu 3 Select Smart mode using the mode selection icon see display 2 4 Hold down the button on the listening device to start measuring or hold down Button 1 5 Release the button on the listening device to capture a measurement or release Button 1 6 Use the information on the display to pinpoint a leak as described over Display 2 Smart mode Acoustic Measurements Filter settings Last six saved measurements Current measurement Mode selection Headphone volume Microphone Frequency spectrum sensor sensitivity Mode selection This icon tells you which mode is selected ul ca Smart Mode is rec
12. these results Please see the Standard Warranty Terms for further information Radiodetection USA 28 Tower Road Raymond Maine 04071 USA Tel 1 207 655 8525 Toll Free 1 877 247 3797 rd sales us spx com Radiodetection Ltd UK Western Drive Bristol BS14 OAF UK Tel 44 0 117 976 7776 rd sales ukQspx com www spx com www radiodetection com 2014 Radiodetection Ltd All rights reserved Radiodetection is a subsidiary of SPX Corporation SPX the green gt and X are trademarks of SPX Corporation Inc Radiodetection is a trademark of Radiodetection Ltd Due to a policy of continued development we reserve the right to alter or amend any published specification without notice This document may not be copied reproduced transmitted moditied or used in whole or in part without the prior written consent of Radiodetection Ltd 90 UG100INT 01 6 Example use There are two sources of noise from a leak The first is the sound made from the water escaping from the leak site This is usually a higher frequency sound and is transmitted along the pipe and any fittings on it It is called structure borne sound The second noise comes from the escaped water hitting the surrounding soil This is transmitted through the earth above it and emits a lower frequency sound on the surface It is called ground borne sound and is usually only heard close to the leak site Identifying the leak location is usually a two stage process Fi
13. wer frequencies green and pink for mid frequencies to yellow for high frequencies When the width of the frequency spectrum is changed the colors change correspondingly For a spectrum from 1 1000Hz yellow will indicate higher frequencies at 1000Hz but for a user defined spectrum of 0 3000Hz yellow will indicate close to 3000Hz The white lines show the current settings for the high pass and low pass filters A WARNING Failure to comply with safety warnings can cause serious injury or death You are responsible for determining whether the conditions are suitable for using this device Always carry out a risk assessment of the site to be inspected Ensure you follow all applicable laws regulations guidelines and policies for the location excavation inspection or fault analysis of a sub surface utility This equipment is NOT approved for use in areas where potentially explosive or otherwise hazardous gases vapors liquids or solids may be present Do NOT carry out any measurements on components carrying live voltages This product does not indicate the depth of sub surface utilities Additionally it does not detect buried electrical power lines gas lines or other hazardous underground objects If you intend to uncover a sub surface utility by digging you must follow your company region and country s codes of practice for excavation It is important to regularly clean and sanitise products which may become contaminated throu
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