Operating Instructions - EURO
Contents
1. Operating Instructions SE 7 Measurable success by Sewerin equipment Congratulations You have chosen a quality instrument manufactured by Hermann Sewerin GmbH Our equipment will provide you with the highest standards of performance safety and efficiency They correspond with the national and international guide lines Please read and understand the following operating instructions before using the equipment they will help you to use the instrument quickly and competently If you have any queries we are available to offer advice and assistance at any time Yours Hermann Sewerin GmbH Robert Bosch Stra e 3 33334 G tersloh Germany Tel 49 5241 934 0 Fax 49 5241 934 444 www sewerin com info sewerin com SEWERIN SARL 17 rue Ampere BP 211 67727 Hoerdt Cedex France T l 33 3 88 68 15 15 Fax 33 3 88 68 11 77 www sewerin fr sewerin sewerin fr SEWERIN IBERIA S L Centro de Negocios Eisenhower Avenida Sur del Aeropuerto de Barajas 24 Ed 5 Of 2C 28042 Madrid Espana Tel 34 91 74807 57 Fax 34 91 74807 58 www sewerin es info sewerin es Sewerin USALLC 2835 Haddonfield Road Pennsauken NJ 08110 1108 Phone 1 215 852 8355 Fax 1 856 662 7070 www sewerin net sewerin usa sewerin net Sewerin Ltd Hertfordshire UK Phone 44 1462 634363 www sewerin co uk info sewerin co uk Sewerin Sp z 0 0 ul Annopol 3 03 236 Warszawa Polska Tel 48 22 519 01 50 Fax 482. P Pin pointing 23 Pipeline location 2 3 8 Preliminary location 19 Probe overview 16 Probe selection 5 R Radio microphones 9 12 37 Reset 27 S Self discharge 7 Setup 25 26 Software version 4 Speaker symbol 10 20 Stabilised surfaces 16 Switch off 5 18 Switch on 4 18 Switch on off 4 T Test rod T 4 17 34 Transmission bandwidth 33 U Unstabilised surfaces 16 V Volume 14 20 Volume display 10 W Water leak detection 2 3 8 9 Annexe 39 Hermann Sewerin GmbH Robert Bosch Stra e 3 33334 G tersloh Germany Telefon 49 5241 934 0 Telefax 49 5241 934 444 www sewerin com info sewerin com 17 11 2008 b 104194 en
3. The current noise can be heard through the headphones The digital display indicates the smallest value measured The small digital display indi cates the previously measured value For the first measure ment this value is O The smallest measured value is shown in the analog display in reverse video To deactivate the A 100 re lease the gauntlet key or press the microphone key again If the A 100 is not deacti vated when the gauntlet key is released the function of the gauntlet key has been changed see section 4 8 In this event press the gauntlet key again Place the ground microphone on the next measurement point and proceed exactly as described above The previously measured value now appears in the small digital display for the purposes of comparison Use the ground microphone to check the area of the sec tion where the leak is thought to be The illustration on the previous page shows an example of the display when crossing a leak 4 Water leak detection 4 8 Individual settings On the A 100 various settings can be freely selected and permanently saved The set up table on the next page highlights the various possibilities This is a list of settings that you can alter and save First of all please switch on the instrument Hold down the microphone key Press the on off key ELWSset appears in the com ment line The microphone key calls the menu items one
4. 22 519 01 51 Tel kom 48 501 879 444 48 608 01 37 39 www sewerin com info sewerin pl Illustration AQUAPHON A 100 Digital display Gaunlet key Analog display Speaker symbol Headphone socket 4 Loudspeaker EM Battery symbol Socket for probes Comment line Mikrophone key Small digital display N IN Charging status display Volume display Cusor keys Magnifying glass and on off key NS 2 es Hz key Light key Operating Instructions AQUAPHON A 100 17 11 2008 V8 X 104194 en Symbol explanation CAUTION This symbol warns of dangers that may threaten the safety of the user or maty damage or destroy the product Note This symbol flags information and hints extending beyond the actual operation of the product Contents 1 1 1 2 1 3 2 1 2 2 3 1 3 1 1 3 2 3 3 3 4 3 4 1 4 1 4 1 1 4 1 2 4 1 3 4 1 4 4 1 5 4 1 6 4 1 7 4 1 8 4 2 4 2 1 4 2 2 4 2 3 4 2 4 4 2 5 4 2 6 4 3 4 3 1 4 3 2 Page Genera T rn erecto oe ee nete ke entrer does 1 WIN INY recae tees defe etel eet ee oe aie 1 Intended Hise a cesses eee a oe ete tte ier toe 2 General notes duet ae e tti etel eoa Hb ee 2 Function description iii 3 Water leak detection nn 3 Acoustic pipeline location 3 SG eres 4 Switch
5. charged all the bars appear and the number display disappears 3Use ne You can leave the instrument in the charging station until you need it again If you have a case for your A 100 it can be charged inside Connect cable to the charging station inside the case Connect the plug in AC DC adapter M4 or car charging cable M4 to socket 2 3 4 1 Self discharge If the instrument is not placed in the charging station HS 1 2 A when switched off the NiMH accumulator will self discharge which is considered when displaying the remaining operating time After no more than 30 days the instrument will indicate zero op erating hours and it must be recharged 3 Use 3 5 Connecting the headphones A 100 are fitted with a speaker 1 Such produces the confirmation and alarm signals There is furthermore a specific tone for pipeline location During water leak detection no leak noise is emitted over the speaker headphones must be used Switching from speakers to headphones Plug the headphones jack plug into socket 2 The speaker is switched off automatically sound is output to the headphones When the headphones are unplugged the sound is once more output to the speaker Water leak detection Displays Analog display Digital display Hi Small digital display 4 Water leak detection The analog display indicates the cu
6. for use in soft ground Its 3 feet guar antee stability at all times 4 3 3 Carrying rod H 4 The carrying rod can be used with both ground microphones The BO 4 or 3P 4 microphone is Screwed onto its lower end 4 3 4 Test rod T 4 4 Water leak detection The test rod is used for prelimi nary leak location The test rod is placed in contact with valves on the line under investigation 17 4 Water leak detection 4 4 Switching on and off Put the microphone jack plug into socket 1 on the A 100 The A 100 switches on briefly appears in the display for test rod or for ground microphone or for other microphone types 1 If the A 100 does not switch on press the on off key One of the following displays T I IN M Vl y LER To switch off unplug the probe from socket 1 4 5 4 6 Sound protection function VN UN 4 Water leak detection The A 100 incorporates a sound protection function With a sud den loud noise the sound in the headphones is immediately muffled If the sound gets even louder the headphones are Switched off Once this noise source has ceased the A 100 reverts to normal operation The sound protection function ensures that no excessive sound pressure reaches the ears This headphones symbol ap pears in the comment line when the sound protection function is activated Caution Only Sewerin headphones shou
7. shown in the display by a bar in reverse video The light key switches the dis play illumination on and off It switches off automatically after about 2 minutes 4 Water leak detection 4 2 6 X Magnifying glass and on off key a 1000 R The analog display indicates the relative noise level The display can be adapted to prevailing conditions to make a change in the display from one measure ment point to another easier to detect This adaptation switches the analog display instanta neous value between scale values 10 100 and 1000 and alters basic amplification for the headphones 10 high sensitivity high amplification 100 medium sensitivity me dium noise amplifica tion 1000 low sensitivity low noise amplification Automatic adjustment takes place to maintain the ratio be tween the current delayed action value and the instantaneous value Press the microphone key The A 100 is activated 6 Press the magnifying glass key The sensitivity of the analog display is altered The current sensitivity setting is shown above and to the right of the display 15 4 Water leak detection 4 3 Probe overview 4 3 1 Ground microphone BO 4 The ground microphone BO 4 is used to locate leaks beneath stabilised surfaces 4 3 2 Ground microphone 3P 4 The ground microphone 3P 4 is used to locate leaks beneath unstabilised surfaces An earth spike can be screwed onto it
8. 1 xxxx Fabr No Hiermit erkl ren wir dass oben genanntes Produkt mit der den folgenden Norm en oder normativen Dokument en bereinstimmt Bei einer mit uns nicht abgestimmten Anderung des Produkts verliert diese Erkl rung ihre G ltigkeit We hereby declare that the above product complies with the following norms or standardized directives In the event of any modification of this product which has not been authorized by us this declaration becomes invalid Norm en Norm s DIN EN 61000 6 2 EMV Fachgrundnorm St rfestigkeit Generic Immunity Standard DIN EN 61000 6 4 EMV Fachgrundnorm St raussendung Generic Emission Standard Gem den Bestimmungen der Richtlinie n The unit complies with 89 336 EWG EG Richtlinie Elektromagnetische Vertr glichkeit EG Directive Electromagnetic Compatibility 92 31 EWG nderung dazu amendment to above 93 68 EWG nderung dazu amendment to above G tersloh den 17 02 2006 HERMANN SEWERIN GMBH H Gesch ftsf hrer Managing Director 36 Annexe Record of changes Version 4 2 Display set to sensitivity ranges 1 10 1 100 1 1000 Switch via magnifying glass key Factory settings sound protection functions only active at middle threshold This threshold is active after renewed power up e Band filter acc to micro type manually adjustable to 9 950 Hz BO 4 50 1500 Hz T 4 50 3000 Hz EM30 MO1
9. 4 7 Pin pointing see oot na rear 23 4 8 Individual settings ne na 25 4 9 Factory settings reset i 27 5 Brief instruction irren 28 5 1 Brief instruction on water leak detection 28 6 Malf nctions u iii 31 7 Specifications iii nn 33 8 Accessories cani iaia 34 8 1 Accessories for water leak detection 34 8 2 General accessories eee 34 9 Hints on Disposal iiii 35 PAIN OKO ie ines ERE 36 Declaration of Conformity 0 cc ess ssss eee seee er eeeer e eee seen neee eenn 36 Recordiof changes ie cte e idee ted a 37 Idi alano Mate ea dote fe 38 1 1 1 General General Warranty Hermann Sewerin GmbH bears no liability for damage attributable to non compliance with these instructions The terms of warranty and liability of the conditions of sale and delivery of Hermann Sewerin GmbH are not extended by the above This product may only be used after the operating instructions have been read and understood This product was developed for qualified skilled personnel in public utility companies The device must only be commissioned after respective introduction This product may only be used for its designated purpose This product is destined for industrial and commercial appli cations Repair work may only be car
10. 50 9950Hz Pre amplification matched to micro types Version 5 0 Radio microphones usable If the accu voltage is lower than the accu nominal voltage the device is being recharged The version number of the software is displayed on switch on Version 5 2 Marker for system Combiphon max level is stored Version with battery power possible Version 7 0 Use of new hardware resulting in a weight reduction from 1 4 to 1 0 kg In this version the programme is stored in a flash memory and no longer in a EPROM Quick charging due to NiMH accumulators The lowest level of the band pass filter is set from 50 Hz to 1 Hz This allows for hearing even lower frequencies 37 Annexe Index A Accessories 1 3 34 Analog display 9 B Basic amplification 11 15 26 Battery symbol 10 Brief instruction 28 C Carrying rod H 4 16 Charging 6 Charging equipment 6 Charging status 4 Comment line 11 19 25 26 Cursor keys 14 D Digital display 9 20 21 Display contrast 5 E ELWset 25 F Factory settings 27 Frequency range 13 14 G Gauntlet key 12 20 23 24 26 Ground microphone 3P 4 16 34 Ground microphone BO 4 16 34 H Headphones 8 10 14 19 26 Hz key 12 13 14 Interference 31 38 K Key functions 11 L Light key 5 14 Magnifying glass key 11 15 26 37 Manual probe selection 5 MAX 9 12 Microphone key 5 11 O On off key 15 18 25
11. after another The cursor up key alters the status of the selected menu After the last menu the save message appears The cursor up key saves the current settings and termi nates the function DIAS D Notes The ear protection function should be set to low level only with low surrounding noise so that is already activated with moderate noise levels In situations with high noise such level should be set to option 1 factory settings In special cases the setting option 2 may be used The ear protection function will then only be activated in case of very loud noise levels To avoid that the ear protection function is activatet too often and impairs locat ing the leak the headphones volume may not be set too loud 25 4 Water leak detection 26 ELW setup table Description Condition Condition Condition The gauntlet key item 1 is a key which does or without with does not stay down when pressed Quit tone on pressing button 3 sound protection function oper ow threshold threshold threshold ates at tion 5 headphones switch off com pletely factory setting Example If the comment line contains No 3 0 the sound protection function operates at the low threshold Basic amplification is useful for adapting to extreme situations The higher the basic amplification the louder the noise in the headphones at a given volume setting Pressing t
12. ate valve adapter Piezo microphone EM30 especially suitable for use in buildings General accessories Headphones stereo Charging station HS 1 2A Case A 100 Case with foam inlay special transport protection incorporated pockets for accessories device may be charged inside the case ACIDC adapter M4 Car charging cable M4 Carrying system Triangel adjustable upholstered back belt Carrying system Cross Belt Carrying system Cross Belt 2 adjustable straps with diagonal attachment points The straps cross over at the back for extra comfort 9 Hints on Disposal Hints on Disposal The disposal of instruments and accessories is governed by the European Waste Catalogue EWC Type of Waste Corresponding EWC Code Instrument 16 02 13 Battery accu 16 06 05 Old Instruments Old instruments can be returned to Hermann Sewerin GmbH We will arrange the qualified disposal free of charge through certified specialists 35 Annexe Konformit tserkl rung Declaration of Conformity Ger tebezeichnung Tragbares Tragbares Tragbares Leitungssuchger t Leitungs und Wasserleck Wasserleck suchger t suchger t Type of Product portable battery portable battery portable battery operated pipe operated pipe operated water leak locator locator and water detector leak detector Ger te Typ AQUAPHON AQUAPHON Product Name FERROPHON EL AF 100 A 100 Fabrikations Nr 035 11 xxxx 036 11 xxxx 037 1
13. e gt symbol appears on the left of the bottom text line and the name of the probe that can be selected e g M01 in the a UA middle vw 4 Pressing the cursor keys Switches between possible probes Pressing the magnifying glass amp key displays the selected probe 3 2 Adjusting the display contrast The display contrast can be ad justed as follows Hold down the light key a Press the cursor down key to reduce the contrast Press the cursor up key to increase the contrast t e 3 Use 3 3 Charging equipment When fully charged the instru ments have a maximum operat ing time of approx 12 hours To charge an instrument you need the charging station HS 1 2A see fig which can be used either in the workshop or in the emergency vehicle The charging station has the fol lowing sockets on its side AC DC adapter M4 100 240 V Car charging cable M4 3 4 Charging Note Charging the accumulator only within temperature range 0 45 C Switch off the instrument and plug it into the charging sta tion The following or similar appears in the display The instrument now has 5 op erating hours 5 bars left It will take another 3 hours to be fully charged The actual operating time depends on the accumulators condition age and operati on light volume charging time takes max 4 hours e When it is fully
14. ecide whether you have not yet reached the leak or have already gone past it 21 4 Water leak detection 22 Right the current delayed action value has fallen because the leak is further away The last delayed action value 38 provides us a further comparison The following illustration shows how a leak noise overlaid by fluctuating extraneous noise is shown in the display present value IL n last delayed action value memory but s TT 7 I I previous now 5 i time place volume 4 Water leak detection 4 7 Pin pointing Non metallic pipe materials do not transmit structure borne sound as well Therefore checking at the valves is not enough The sections between valves must also be checked with a ground microphone Listening to the surface of the ground at short intervals enables the leak to be located without digging Here too the A 100 provides a precise optical comparison of the noise intensities The above illustration for example shows how the display changes when passing a leak Connect the ground micro phone to the A 100 Place the microphone on the ground Activate the A 100 with the Q gauntlet key or the micro phone key A speaker symbol appears in the display during measure ment The analog display indicates the current measurement volume 23 4 Water leak detection 24 o 7
15. ent measurement For the first measurement this value is 0 During this measurement the smallest measured value is shown in the analog display in reverse video To deactivate the A 100 release the gauntlet key or press the microphone key again If the A 100 is not deactivated when the gauntlet key is released the function of the gauntlet key has been changed see section 4 8 In this event press the gauntlet key again 5 Brief instruction Place the test rod on the next measurement point and proceed exactly as described above The previously measured value now appears in the small digital display for the purposes of comparison 29 5 Brief instruction Pin pointing Instead of a test rod connect a ground microphone to the A 100 Place the microphone on the ground Activate the A 100 with the gauntlet key or the microphone key A speaker symbol appears in the display during measure ment The analog display indicates the current measurement volume The current noise can be heard through the headphones The digital display indicates the smallest value measured The small digital display indicates the previously measured value For the first measurement this value is O The smallest measured value is shown in the analog display in reverse video To deactivate the A 100 release the gauntlet key or press the microphone key again If the A 100 is not deactivated when the gauntlet key
16. he magnifying glass key is a convenient way to alter basic amplification If you do not want the headphones to switch off completely when the sound protection function is triggered by loud noises only heavily muffled select switch off headphones completely No This means that the user will not lose all ambient noise while using the hearing protection headphones An orientation for example in traffic is limited possible 4 9 Factory settings reset 4 Water leak detection The factory settings e g filter settings can be restored as follows e Plug in a microphone jack plug while holding down the light key Reset appears in the bottom text line for about 2 seconds 27 5 Brief instruction 5 5 1 28 Brief instruction Brief instruction on water leak detection Preliminary location mm LU LU B o JB lt dom A Ca A Connect the headphones to the A 100 Connect the test rod to the A 100 Place test rod on the first measurement point Activate the A 100 with the gauntlet key or the microphone key A speaker symbol appears in the display during measurement The analog display indicates the current measurement volume The noise can be heard by the headphones During this measurement the big digital display indicates the smallest value measured During this measurement the small digital display indicates the smallest value of the preced
17. higher the basic amplifica tion the louder the noise in the headphones The values 10 100 or 1000 appear in the display Basic amplification can be al tered with the magnifying glass key see section 4 2 6 10 100 1000 low amplification high amplification medium amplification Pressing the microphone key activates the A 100 Pressing it again deactivates it 4 Water leak detection 4 2 2 4 2 3 Modus MAX Gauntlet key O Hz key Ce Le If you hold down the micro key for 3 seconds you can switch to MAX mode This mode helps with acoustic line detection In stead of minimum values only max values are shown in this mode only with microphones with cable connection not with radio microphones Pressing the gauntlet key acti vates the A 100 Depending on the options selected in the set up menu it is deactivated either by releasing the gauntlet key or by pressing it again The Hz key is used to alter the frequency filter setting The fil ter bandpass which is a least 300 Hz wide can be set any where between 1 Hz and 10 kHz Pressing both cursor keys at once resets the bandpass to its default setting which depends on the probe 4 Water leak detection Different leak noises can be heard best in different frequency ranges and two people may hear the same noise differently To optimise acoustic perception a bandpass can be set In this case only a par
18. ing on and Off e E E REEE 4 Manual probe selection i 5 Adjusting the display contrast i 5 Charging equipment eee 6 ChiarglIng zs ide ton e eem e 6 Self discharge lei LEA 7 Connecting the headphones sss es sese ee sees eee eee sese eee eee een 8 Water leak detection esses 9 Displays eet Mall 9 Analog display dir RR 9 Digital display te ee 9 Small digital display sene 9 Speaker symbol aee tee ene treten ta d 10 Volume display assiali alzo 10 Battery Symbols 12 rt re Re fie pete ipe Pese its 10 Comment line eee eee 11 Basic amplificatiori 2 2 tenera 11 Key functions u eR T RC ERR ERR ERES 11 Microphone key rn een 11 Gauritlet key oet ie tea S egets taped bent tts 12 Plz Keystone sitit rites easet inis bn fi ase M i 12 Cursor Keys ctp label O 14 Eight Key e woe EDU T 14 Magnifying glass and on off Key eee eee 15 Probe overview i 16 Ground microphone BO 4 n 16 Ground microphone 3P 4 ne 16 Contents Page 4 3 3 G rrying tod Ele4 e isa anali 16 4 3 4 Test rod TA lai ue tei een ehr 17 4 4 Switching on and Off sania eee 9eha3a aeaa Ea 18 4 5 Sound protection function esssrssseennnnnnennnneenennnnnen 19 4 6 Preliminary location enne 19
19. ion error Self re Switch de with CODEC setting vice back on SEWERIN service 239 DSP error in boot pro self lock Switch de gram ing vice back on SEWERIN service 240 DSP error when loading self lock Switch de firmware ing vice back on SEWERIN service 241 Communication error Self re Switch de with DSP setting vice back on SEWERIN service Specifications Fab no A 100 7 Specifications 037 11 Transmission bandwidth A 100 Filter adjustable Filter minimum bandwidth Power supply Type of protection in operation Weight Approximate dimensions Temperature range 1 10000 Hz steps of 50 500 and 1000 Hz 300 Hz built in rechargeable accumu lator NiMH integral automatic charging buffer system Displayed battery status Operating time approx 12 hours IP65 approx 1 0 kg W x H x D 12 5 x 18 x 6 5 cm 10 C 50 C 25 C 70 C operation storage 33 8 Accessories 8 8 1 8 2 34 Accessories Accessories for water leak detection Piezo Test rod T 4 with screwed on tip Ground microphone BO 4 With sound proofed against extraneous noise especially suitable for stabilised surfaces Carrying rod H 4 For ground microphones BO 4 and 3P 4 Ground microphone 3P 4 with tripod for both stabilised and unstabilised surfaces with Screw on 20 cm measuring spike Test rod extension 60 cm needed for listening to valves in shafts Valve adapter G
20. is released the function of the gauntlet key has been changed see section 4 8 In this event press the gauntlet key again Place the ground microphone on the next measurement point and proceed exactly as described above The previously measured value now appears in the small digital display for the purposes of comparison Use the ground microphone to check the area of the section where the leak is thought to be 30 Malfunctions Malfunctions of the device are indicated through sage on the display An F and an error code will be displayed 6 Malfunctions an error mes Error Description Error be Remedy code haviou 10 A 100 not recognised self lock Switch de ing vice back on SEWERIN service 40 Temperature at battery to self lock Improve high for charging gt 45 C ing device sur roundings SEWERIN service 41 Temperature at battery to self lock Improve low for charging lt 0 C ing device sur roundings SEWERIN service 52 Data flash error occurred self lock Switch de ing vice back on SEWERIN service 100 Probe not recognised by self lock Switch device ing device back on manually select probe SEWERIN service 31 6 Malfunctions 32 Error Description Error be Remedy code haviou 110 No probe detected by self lock Switch device ing device back on manually select probe SEWERIN service 210 Communicat
21. ld be used as these are adjusted to the A 100 The threshold at which the sound protection function is triggered can be adjusted see section 4 8 Individual adjustments Preliminary location Structure borne sound is trans mitted a very long way by metal lic pipes which makes the test rod very effective for preliminary location Connect the headphones to the A 100 Connect the test rod to the A 100 Place test rod on the first measurement point 19 4 Water leak detection 20 v EF 3 v Xf Activate the A 100 with the gauntlet key or the micro phone key A speaker symbol appears in the display during measure ment The analog display indicates the current measurement volume The noise can be heard by the headphones During this measurement the digital display indicates the smallest value measured The small digital display in dicates the smallest value measured during the previous measurement This value is 0 after first measuring The smallest measured value is shown in the analog display in reverse video during the measurement 6 To deactivate the A 100 release the gauntlet key or press the microphone key again If the A 100 is not deacti vated when the gauntlet key is released the function of the gauntlet key has been changed see section 4 8 In this event press the gauntlet key again e Place the test rod on the next measurement poin
22. nction description Water leak detection The A 100 is used in combination with various microphones listed in the Accessories section for the electro acoustic detection of water leaks When a pressurised pipeline develops a leak water flows through it into the surrounding soil at high speed Consequence The pipeline material vibrates at the exit point This vibration is transmitted by the pipe with the result that it can be picked up even at remote contact points valves and the like This struc ture borne noise is rendered audible by the A 100 The water jet and the pipe in the vicinity of the leak also induce vibration in the soil This is transmitted to the surface where it can be picked up as ground borne noise Even with electro acoustic leak detection the human ear retains its importance Suitable practice enables noises of different types and tones to be compared and leak noise distinguished from extraneous unrelated noise Acoustic pipeline location Plastic lines cannot be located by the classical electromagnetic method because they do not conduct electricity The acoustic method of pipeline location uses a different principle the lines transmit mechanical vibration better than the surround ing earth If suitable vibrations are applied to the line they are transmitted along its length and through the earth to its surface and can then be located there with an ground microphone and receiver with headse
23. ried out by appropriately trained persons Changes and modifications to the product may only be carried out with the consent of Hermann Sewerin GmbH Unauthorised modifications to the product render the warranty of the produ cer null and void Only accessories from Hermann Sewerin GmbH may be used with this product Only replacement parts approved by Hermann Sewerin GmbH must be used for repairs We reserve the right to make technical modifications in the interests of further development Please comply with general safety rules in addition to these in structions 1 General 1 2 1 3 Intended use The A 100 is a instrument for electro acoustic water leak detec tion and acoustic pipeline location D Note This operating instructions describes the functions of software version 8 X Future changes are subject to modification General notes n order to ensure the correct functioning of the devices the following requirements must be complied with Devices must not be dipped or immersed Display and keyboard must not be scratched Devices must not be dropped Devices must not be used as supports The allowed operating temperature range is 10 C 50 C The allowed storage temperature is 25 C 70 C If additional devices are used e g generators the correspond ing operating manuals must be complied with 2 1 2 2 2 Function description Fu
24. rrent reading The digital display indicates the smallest value measured during a single measurement In the MAX mode the digital display always shows the great est measured value In MAX mode you can switch by hold ing the micro key for 3 seconds only with microphones with cable connection not with radio microphones For the purposes of comparison the small digital display always indicates the precedent value measured 4 Water leak detection 4 1 4 Speaker symbol Volume display Cw Ca Battery symbol FP K The speaker symbol indicates that the A 100 headphones are activated The volume display indicates the volume set If the bar on the extreme left is shown in reverse video the volume is low if the bar on the extreme right is shown in reverse video the volume is maximum The volume can be adjusted with the cursor keys The battery symbol appears about 15 minutes before the battery runs out In case the accumulator volume drops fur ther the instrument automati cally switches off to protect the accumulator 4 2 4 2 1 Comment line Basic amplification 1000 ex Key functions Microphone key 4 Water leak detection Various possible settings and parameters are displayed in the comment line The filter setting is shown here for example Basic amplification is useful for adapting to extreme situations The
25. t and proceed exactly as described above The previously measured value now appears in the small digital display for the purposes of com parison 4 Water leak detection um mn un E IB n JB c dos A vt M Eu 5 U D In water leak detection the display will be similar to that shown in the illustration above The noise is loudest near the leak and quieter further away On the left the analog display indicates about 309 this is the instantaneous noise value However the analog display often fluctuates substantially because of changing ambient noise Even a trend can be hard to recognise This is why the large digital display figure 16 indicates the smallest noise value measured at this point so far the current delayed action value Even if ambient noise grows louder this display is unaffected while if it grows quieter the display falls further The figure 16 is also shown in the analog display as a segment in reverse video The small digital display indicates 0 as yet there is no value in memory Centre the analog display indicates about 6096 The large digital display figure 38 indicates a value greater than the left hand measurement point This is an indication that the leak is closer The small digital display now indicates 16 it reminds you of the result from the last measurement point last delayed action value This makes it easier to d
26. ticular frequency range is fed to the headphones The best setting can be found by experiment or alternatively the A 100 can search for it au tomatically Setting the frequency range manually 42 Cw Ca DS LS Ca DS Press the Hz key The most recently set limits are displayed the lower filter limit flashes The cursor keys change the lower filter limit step by step Press the Hz key again The upper filter limit flashes The cursor keys change the upper filter limit step by step Press the Hz key again The filter limits are saved 13 4 Water leak detection 4 2 4 4 2 5 Automatic search for the best frequency range The A 100 has a filter optimisation function that automatically searches for the best frequency range It should not be activated if there is any significant extraneous noise and the leak noise particularly ground borne noise should already be audible 2 Cursor keys Ce Laj Light key vy Q Press the Hz key until a clear ance tone sounds The A 100 takes a noise sam ple and analyses it While analysis is under way the display indicates various frequency ranges The noise produced by the filter values displayed can be heard over the headphones The A 100 selects the fre quency range in which the leak noise is especially clear The cursor keys are used to ad justthe volume of the speaker or headphones The volume setting is
27. ts according to the water leak detection principle As with water leak detection the line is in the place where the greatest intensity is found Fibrous cement and metallic pipes can also be located in this way If you wish to detect the lines acoustically follow the operating in structions for the vibration emitter eg COMBIPHON Proceed as with for water leak detection The A 100 also offers an additional mode to assist in detecting lines see section 4 2 1 3 Use 3 Use 3 1 Switching on and off Plug a probe into the appropri ate input Probe connection input 1 A brief signal tone sounds The software version appears in the display The charge status of the re chargeable batteries appears in the display The type of probe plugged in is automatically determined The probe type briefly appears in the display If the probe type is not automatically identified it can be selected manually see section 3 1 1 f a microphone has been plugged in the bandpass cur rently set for the frequency filter is briefly displayed 3 Use The layout of the display de pends on the used probe The measurement process may be started To switch off unplug the probe from the input 3 1 1 Manual probe selection If the probe is not automatically identified if itis an old model for example it can be selected manually Hold down the microphone key e Plug in the probe Th
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