GasClam User Manual
Contents
1. Communication port Pressure transducer port 9 Pressure transducer port cap Gas inlet Gas Outlet Water proximity sensor 10 Pressure transducer hook Battery compartment lid 6 Vent with hose barb 0 Rubber Collar c o Wap no GasClam identification plates with intrinsic safety specifications Unrivalled Detection Page 13 of 48 GasClam Getting Started How the GasClam Works and access areas Controlled Vent outlet Das Inlet outlet Sensors and detectors Das Flow Processing and memory Connection Socket Batteries Authorised service centres Trained Users All users GasClam Getting Started Software Installation System Requirements The GasClam software needs 30MB free space on the hard disk for installation The programme will run on the following platforms Windows 98 Windows 98 Second Edition Windows 2000 service pack 3 Windows ME Windows Server 2003 Windows XP service pack 2 Windows Vista Windows 7 The programme needs Net Framework 2 0 x86 installed to run properly This version is included on the software CD alternatively it can be downloaded from the Microsoft website Running the installation software Insert the installation CD or USB stick and copy the software folder on to the PC There are two installation options 1 If you have an old version of DotNetFX 2 0 x86 then double click the setup icon to update the DotNetFX If you a2. 0 1 ppm on the CO channel 100 ppm H will read approx 20 ppm on the CO channel The hydrogen sulphide sensor is especially cross sensitive to the following 5 ppm NO will read approx 1 ppm on the H2S Channel 35 ppm NO will read 1 ppm on the H2S Channel 5 ppm SO will read 1 ppm on the H2S channel 300 ppm CO will read 6 ppm on the H2S channel If the sensors have been exposed to gasses they are cross sensitive to for long periods it may take some time for the sensors to recover The sensors can be checked after exposure to these gasses by setting the GasClam to sample every 5 minutes in clean air and the concentrations should return to zero and stabilise If you suspect a cross sensitivity problem please contact your supplier for further advice Unrivalled Detection Fat d4 ordo GasClam Technical Specification Single CO sensor The Single CO sensor has a filter on to reduce the cross sensitivity with H S NO NO and SO Gas Filter Capacity ppm hours HS 250 000 NO 600 000 NO 20 000 SOQ j 300 000 50 ppm NO will read 5 ppm 400 ppm Hs 20 C will read 60 ppm 400 ppm CoH will read 25 Single H S sensor 5 ppm NO will read approx 1 ppm on the H2S Channel 50 ppm NO will read lt 5 ppm on the H2S Channel 20 ppm SO will read 4 ppm on the H2S channel 400 ppm CO will read 4 ppm on the H2S channel 10 ppm Cl will read 25 ppm on the H2S channel Methane Metha
3. Water density Water Sensor Length GasClam Surface Distance GasClam Length Water level mbgl GasClam distance length of GasCalm length of Water level sensor Depth of submersion Unrivalled Detection Page 25 of 48 GasClam Software Unit date and time The time and date of the unit and computer are displayed in the Date and Time box and are synchronised by left clicking the Set Time tab The date and time is not stored when the unit is switched off or when the batteries run or are changed Note The time on the unit is likely to differ from the computers if the device was programmed on a different computer to the one it now is connected to Write Settings to GasClam To activate a change in the setup up menu the write settings to GasClam button must be clicked If this is successful a Date and Time Time on GasClam 05 06 2008 14 30 43 Time an FC 05 06 2008 14 30 43 Erase GasClam Memory OFF Update Firmware Back message saying Settings written successfully will appear Click OK to continue Erasing Data Memory To erase all the data from the flash memory left click the Erase memory button The status will change to Clear Flash during this process when this is finished the status will change to Sleeping Warning This process erases stored data permanently Make sure you have downloaded the data from the GasClam onto your computer Return to main screen To return to
4. Hle name C User petermonis IONSCIENCE Documents spain Spirax a ASCLAM TES T4 GasClam 40 16 5 2011 1 h40m28s GCL la ul Wite Flash j Date and time AD Bailey Batey Busy ad Mency SPI Immersio Pump Filter 23 04 2011 07 33 4 ENPO po b po p 4 Error symbol Error message tab Unrivalled Detection Page 22 of 48 GasClam Software Switching off the unit If the unit is not going to be used for a long period it is recommended that it is turned off using the OFF button this reduces the discharge from the batteries When the off button is clicked a message will appear to ask if you really want to switch off Do you really want to switch GasClam off This mode is recommended for long periods of storage The time a date will be lost in this mode Yes Na lf the Yes button is clicked the following appears EZ x Gasdam will turn off after the communication cable is disconnected The GasClam will turn off after the communication cable is disconnected until then the main screen will appear as below E GasClam after disconecting will be GasCLam Unit off ioj x GasClam Ble Last Reading Stored SALAMANDER 6 A Methane The GasClam will turn back on when the data cable is attached again Unrivalled Detection acesi GasClam Software Setup The GasClam is programmed in the setup window and is accessed by left clicking the set up navigation tab and the set up w
5. a filename when the data is downloaded Unrivalled Detection page hard GasClam Software Venting The GasClam has four venting modes which can be selected in the Venting box see below Always Closed The vent is always closed _ Vent blank plug inserted Always Open The vent is always open Always closed 5 B i Always open pen once per day e vent opens once a day aa ie DT TT for a period of time defined by the user F Open after Em The vent opens immediately after ae dco the first sample and shuts after the allocated time Houris for minute s Open after every The vent opens and stays open for user defined periods If the GasClam is to be located in a wet area and the vent blank is installed tick the vent plug inserted box Water height The GasClam can measure the water level in the borehole using an optional pressure transducer To enable the water level pressure transducer the water level enabled box in the Distance water height area needs to be ticked The GasClam reports the level in meters below ground level mbgl however in order to calculate this distance 3 parameters need to be entered water density water sensor length and the distance of the GasClam to the surface see diagram below Pure water has a density of 1000 kg m3 at 4 C Borehole pressure affects the water level reading but this is automatically corrected GasClam distance Distance water height Iv Water Level Enabled
6. from Stuart Wells http wellservices stuartqroup ltd uk and should be installed following the diagram below X Protective cover Va collar N Stand pipe m IT It is important to have the stand pipe a maximum of 3 cm above the base of the headworks this will ensure the GasClam will fit under the lid of the cover The headworks must be concentric to the standpipe for the GasClam to be housed correctly The standpipe must also be cut square to allow a good seal If a protective cover is to be used make sure this ends below the top of the standpipe otherwise the GasClam will not fit correctly Unrivalled Detection Page 38 of 48 GasClam Service and Calibration Unit calibration Calibration should only be carried out by an authorised GasClam distributor Service The GasClam should be regularly serviced to ensure correct and accurate operation It is recommended that it should be serviced and recalibrated every 12 months The GasClam is ATEX certified for use in potentially explosive areas therefore it should only be serviced by qualified engineers Failure to do so will invalidate the warranty User serviceable parts Changing Moisture stripping filter Follow the advice in The effects of water on your GasClam section pg 5 6 for filter management To change the moisture filter follow the instructions below The instrument should never be operated without the filter To remove filter 1 Putthumbs benea
7. level drops the GasClam will start sampling again after 1 hour If submerged for longer than 7 days the 6 Immersion Water in the borehole has risen to user will have to inspect for water ingress the base of the GasClam If OK sampling can continue if any suspicion water has reached the inlet barb contact local service centre for advice Check to see if it has happened only once or if itis a permanent error If permanent AD Overflow The AD convertor is not working reset the GasClam by removing and replacing batteries If problem persists call the service centre Check to see if it has happened only once or if itis a permanent error If permanent Flash Busy The memory has timed out reset the GasClam by removing and replacing batteries If problem persists call the service centre Full Memory The memory is full Download GasClam and clear memory Check to see if it has happened only once or if itis a permanent error If permanent Error SPI Flash Hie Nash a An OP e reset the GasClam by removing and y replacing batteries If problem persists call the service centre Check to see if it has happened only once or if itis a permanent error If permanent Error Write Error writing to the flash memory reset the GasClam by removing and replacing batteries If problem persists call the service centre eee Pump Pump is not working correctiy Check battery ji OK call service See filter pressure pg 29 and Pot
8. monitor designed for in situ borehole monitoring The entire casing is made from solid stainless steel The battery pack is in the upper part of the housing in a flame proof casing The measuring unit consisting of four gas sensors is located in the intrinsically safe lower part of the housing The valves pump and filter assembly are located at the bottom of the housing Authorised Subject FTZU AO 210 NB 1026 Pikartsk 7 716 07 OSTRAVA RADVANICE ICO 00577880 Type of Protection amp II 2G Ex d ib ib IIB T4 Certificate Number Quality assurance notification FTZ 02 ATEX Q 025 according to EN 13980 CE 1026 FTZU 07 ATEX 0105X Method of Determining Conformity The product s conformity with the respective requirements of directive 94 9 EC it was compared with the submitted documentation jt was tested according standards List of Technical Regulations and Standards 02600 00 001 NKO PTTI EN 60079 0 2006 Electrical Apparatus for Potentially Explosive Atmospheres General Requirement PTTI EN 60079 1 2004 Electrical Apparatus for Explosive Gas Atmospheres Flameproof enclosures d PTTI EN 60079 11 2007 Explosive Atmospheres Equipment Protection by Intrinsic Safety I Directive 2004 108EC EN 61326 1 2006 Electrical Equipment for Measurement Name Ing Jiri Klein Position Managing Director Signature ZA Date 03 06 2008 ANANA Unrivalled Detection Pane aide GasClam Introduction to GasClam GasClam
9. settings and performance of the GasClam This is used by service centres for trouble shooting Unrivalled Detection Page 27 of 48 GasClam Software Viewing Data The data viewer is accessed via the View Data navigation button on the main screen Selecting file for display To open a file click either the or the open button this allows you to browse through your computers folders Data Display Options There are 5 types of data that can be viewed Sampling Data Start Stop Data Calibration Data Error Messages and Eeprom These are accessed using the tabs BEEN loj xl ViewDataNew Hle name C Users Public Documents 5 Chamber GasClam Dual sensor test GasClam 14 14 4 2010 1 Sampling Data Start Stop Data Calibrations Data Eror Messages Eeprom Pee ena rap rn ns unc uos RH ja MII n ramen Fite Unrivalled Detection Pag PT GasClam Software Sampling data To display the sampled data click the Sampling data button The following parameters are displayed see example below Date in the format dd mm yyyy hh mm CH Methane v v CO Yo Carbon dioxide Yo v v CO Carbon Monoxide pom O Yo Oxygen Yo v v VOC Volatile Organic Compound ppm HS Hydrogen Sulphide ppm BH Borehole pressure mBar Atm Atmospheric pressure mBar Diff Differential pressure between borehole and atmosphere If the value is negative it means the pressu
10. the GasClam software s main window use the back button Unrivalled Detection Page2c oidi GasClam Software Downloading To download the GasClam left click the Download button This opens a standard Window s save as window The default file name is the device ID followed by the time and date Remember to have view negative values selected see page 14 n WP GasClam gt Ioj x m English GasClam Ton m qe SRL S A EVOL Volatile Organic Compound m Hydrogen Sulphide Liser Calibration 30 2 ppm Carbon Monoside Other Tests 50 0 ppm On Line Status 27 3 2010 10 33 55 Dsygen Battery status 2504 mn 20 7 a Methane 0 0 Ka Samples Left Barad Sample Taken lei Sampling Every 3 min Finish Or Serial Humber Donna 1 408 COM port COM Status Sleeping Start Carbon Dioxide 0 0 a Borehole Pressure 961 mbar Atmospheric Pressure g57 mbar Temperature 22 0 E water Level 21 04 mbgl Firmware 07 07 220 Hw Salamander version 5 4 3 After choosing the file name and location the download begins when save is clicked the length of the download will depend upon the amount of data Three files are produced gcl This is the file format to read within the GasClam software csv This file contains all the recorded parameters and can be used to view and plot the data in excel gce This file contains information on the
11. 6 Write Settings to GASGIAMN M ab an e 26 Erasing Dala M mMory 26 Aral ezl SON cz nk mbr rl at kana ai nin a EH E E a pei ane a HunE HNHnEE is kanon es 26 IDO ANT J ei w a RUNE 27 WAC WAN YO 1 AN AN ki tt st tib ai api ak a kn a alan te e n l aa n a l ka a ae a a l ad n pl S pr a e ay kd a aa e Dei mesi ka taa 28 Selecting file for display u00 rrrrrrooroorroonoaaoontonnoasnontoonoasnontosnoasnsnoosnoasnanoosnoasnsrnosuoasssrnosvoasosrnosnoasosrnonnoseosrnonnoan 28 DATA DIS OIA OO E M tee kodak san 28 SANN elo ON A ae e EET 29 SO CCH Cala CAG ANE ones dak of l fe to a a a kat n n a te a a e et lk J Jo gpgpg o on 30 DISDIAVING mulllple P aFA AN c E si yi tiyo tait fat a ii ik a ta ka bf al a n e a a e a a 31 Import data into External Spread sheet sees esses nana aa nns KA ka Ka RAA A KK aa assa a Ka kk ku 32 qe m Ga ka 33 SAM OP OM A RETIRO tj le a y tt E EE E EE AE E EE E E E 33 EDI NOE a B i PEPEE E A AE e pan mani ri 34 ETO VCS A H ar pl 34 EOD O ii taa a al ja ai E EEE E E E E EE EEE E EE EE E E E E E EE 34 BUMD LO Eea at ii ik a t a ft av e l a ad E l l rrr 35 ewa J te ki rt ane to mt ee ye 37 Installing GasGlam A a BOrS TYO l i as cu ua dj oi bi k
12. Gas Clam Instrument User Manual V2 1 Gas Clam Instrument User Manual Part number 25001 Unrivalled Detection GasClam Unrivalled Detection Bened GasClam Contents D CIaratiOn Of GON FONN EET mt 3 IM FOGUCHON TO GAS CAN A teka ie id ii a a id a l al a b vla a all e e kl a kl a a a da V an V k fk ot a ik 3 e wa Do a 4 The effects of water on your GasClam ssssesssssssescssesesssssssescesesececseesescesevavarseseessesevavacaeseeneesevavavaeseeneesesevavenseseeneevevavanes 5 Keeping your GasClam dry and clean in regular use ccccsceecceeceeeeeeeeeesaeeeceeeeeaeeeeeeeeseeeeeeeesseaeeeesssaaeeeeeesseneeeeeeaas 5 Effects of flooding on data and GasClam i kk kk nennen nnns hann nnns KA KAK KK KK KK A KK nnns 10 Optimising GasClam Performance eerte tnter tete then nanansnsenenananananansonenanouonanonnsnsnanauauanannanenannn 11 GETO I LANE A ke kol a ki a S D T E oo A E 12 PACKING NSU sacs oi pt a ai a kd ik a ik tn sav a a ia ak kan EE a l it kak e ki atak kt kk T ii tk kek kb ma 12 Turning on the GasClaM u kk kk kk ek k kk KK K k A KK KA KA KK KK KK K K KK KK KK KA KA K KK KK K K KK KK KK KA KK KK KIRA 12 Physical Characteristics kk kk kk K kk K KK K KK KK KA KAK KK KAK KK KK kK KK A K KK kk KK A KK KK KK KK KK kK KK KA 13 How the GasClam Works and access areas ccccccccccsseeseeececeeeeeeeeseeeceeeeeseaeeeeeceeeeeeseeeesseeeeeesssssaa
13. ample When water goes back down the borehole the water proximity detects this and the sampling programme will continue after 1 hour To prevent water from reaching the inlet barb and therefore prevent water ingress the moisture filter section cover creates an air pocket at the base of the GasClam Water cannot rise while the air pocket is present To improve water ingress from below the moisture stripping filter cover and water proximity sensor have been increased by 5 cm This stops water from reaching the inlet barb for at least 7 days when the GasClam is completely submerged with 20 cm of water above its head If the GasClam is immersed for longer than this the user must check the instrument to ensure water has not reached the inlet barb before restarting the GasClam If the end user thinks water may have reached the inlet barb they must contact their local service centre as water may be inside the GasClam pneumatics Inlet Water Proximity Sensor N B The water proximity senor on the GasClam works by conductivity As water is a polar solvent when it touches the proximity sensor a circuit is completed which prevents the GasClam from sampling If a non polar phase is present such as oil that is floating on top of the water in a borehole the water proximity sensor will not detect it and therefore it can be sucked in to the GasClam If a non polar phase is present above the water and there is any chance that it may rise to the base of the
14. curves of the rechargeable battery pack and alkaline batteries are below Unrivalled Detection Rechargeable battery 400 Sample No Alkaline Battery 100 150 200 250 Sample No Page 43 of 48 300 GasClam Technical Specification Case High Quality Stainless Steel Weight 6 kg or 13 2 Ib Protection IP 68 continuous submersion 20 cm above head of GasClam for 7 days Operation 10 to 40 C or 41 F to 122 F Approvals CE EMC ATEX 20 to 50 C alkaline batteries 10 to 40 C rechargeable battery pack Certification rating Il 2G Ex d ib ib llb T4 Certificate number FTZU 07 ATEX 0105 X IECEx 20 to 50 C alkaline batteries 10 to 40 C rechargeable battery pack Certification rating Ex d ib ib IIB T4 Gb Certificate Number IECEx FTZU 09 0026 CSA C US 20 to 50 C alkaline batteries 10 to 40 C rechargeable battery pack Certification rating Class 1 Zone 1 Ex d ib IIB T4 Class l Zone AEx d ib IIB T4 Certificate Number 2320892 European Patent granted World Wide granted Cross sensitivities and sensor performance Dual CO H S Sensor The CO and H S sensors are electrochemical sensors and suffer from cross sensitivity to other gasses that may be found in the subsurface The carbon monoxide sensor suffers especially from the cross sensitivity with H2S He and NO The cross sensitivities with these gasses are 15 ppm H5S will read 6 ppm on the CO channel 35 ppm NO will read
15. ential problem if used below 0 C for more information After the problem has been resolved clear the error message by clicking clr Unrivalled Detection Page 21 of 48 GasClam Software To help trouble shoot errors the service centre will need the gcl gce and csv file see page 23 The VOC CH sensor and the COs sensor have an in built test which is run before every sample In the unlikely event the test fails low voltage is written below the sensor in the last readings stored section of the front screen see below If this happens contact your local service centre immediately GasClam Less Errors English GasClam Close GasClam 67 i CMT C Last Reading Stored ete Volatile Organic Compound O ppm Setup Liser Calibration Z Hydrogen Sulphide 0 m Bump Test Other Tests Carbon Monoxide On Line Status 15 03 2011 11 05 58 O ppm Battery status 2 04 V gem sl Samples Remaining 64590 21 2 Sample Count 3 64938 Methane Sampling Every 10 min Low voltage 0 0 End Date 08 June 2012 10 02 Carbon Dioxide Serial Number 000067 12 05 0 2 COM port COMA Borehole Pressure Vent Mode Close TUND nil Atmospheric Pressure Status Measurini A Temperature 21 1 C Switch Gasclam OFF Water Leve Firmware 7 8 96 HW 7 Salamander Version 5 6 8 A log of the errors is kept and can be viewed in the Error Messages section in the view data section of the GasClam software see below a i i
16. i k ye ekl kak ki a kek W k ke n k ke k x b a k S k daa n ka ke kak k h aka k Wa ka a a 38 SOF VICE AO Call Di A NON a ys Ken soe rea ree DAN HAA H ka kn y t n Su Saan mE 39 ILE a MONA WON pet an e v t area ar a a a a 39 sj 9 DG 39 MIT alen el PIN RIED 39 SAIS Aro NON US SIS eyes ti reisi bete ib n sola te otan ib n ini ede let fen AA be l bod ank eti ets d ki ea jiri bale l ke tels kk kibik b see 41 IE iieri ina isi n aj E ke ei a E a kk e a e n n n e a ka A a a kk a oi ei a kd ii 42 DENSOF SGOECHICATIONS as bka tie tate pite nala r dan la b s ik kete Nm 42 Cross sensitivities and sensor performance ccccceeeecceecceeeeeeeeceaeeeeeeeaaeeeceeeeseeeeeeeesseeeeeeeeeseeeeesesseaseeeeesaageeeeeesas 44 upaale LOO E 48 Unrivalled Detection Page 2 of 48 GasClam Declaration of Conformity The manufacturer Elok Opava hereby declares and confirms that the characteristics of the product conform to the technical requirements stipulated by the technical standards Furthermore the manufacturer declares the product to be safe whilst adhering to the correct conditions for its installation maintenance and use Manufacturer Elok Opava s r o Sadek 17 747 75 Velk Heraltice Czech Republic Product Description A landfill Gas
17. icator pink 15 90 RH 1320 Top indicator Bottom indicator To asses if the filter needs to be changed when the batteries are replaced inspect the filter indicators If both indicators are blue the filter can be used again If the top indicator is pink and the bottom indicator is blue the filter can be used again If both indicators are pink the filter must be changed This is summarised in the table below Colour of top Colour of indicator bottom indicator Pink Blue Don t change but will probably need to be changed next time Change and check instrument for Pink Pink signs of moisture in the instrument Contact local service centre if any signs of moisture If both indicators turn pink after 1 battery life 670 samples contact your local supplier for sampling advice Filter management above 30 C Above 30 C and high humidity the indicators do not represent 40 and 50 of the filters lifetime below is an example of when the indicator s change colour at 38 C and 98 96 RH No of samples to turn top indicator pink No of samples to turn bottom indicator pink Max No Environmental of conditions samples 38 C 98 RH 300 Unrivalled Detection Page 6 of 48 GasClam The effects of water on vour GasClam When sampling above 30 C follow the table below Colour of top Colour of indicator bottom indicator Change and check instrument for signs of moisture in the instrument Con
18. indow then appears as below GasClam Setup 9 25 Vent blank plug inserted D Hour s 3 jan Always closed z Always maximum 7 Always open 64975 max 64975 J Open once per day for Finish an 02 December 2010 23 08 Open after every Houris for SALAMANDER GROUP Time on GasClam 20 07 2010 14 24 59 Time on PC 20 07 2010 14 24 59 Write settings ta GasClam Erase GasLlam memory Settime Back Sampling Rate The sampling rate is defined in the Set Sample Rate box the fastest sampling rate is 3 minutes This is how long all the processes take the longest 999 hours and 60 minutes Sample count The number of samples to be taken can either be set to the maximum possible by clicking the Always Maximum button or defined by the user in the Sample count box The maximum figure displayed is 65000 total memory space minus the number of stored samples the user defined value can be up to and including this The estimated date and time of the end the programme is displayed under the text button This information is calculated as follows Sample count sample rate actual date and time This is set to 800 as default to ensure the moisture stripping filter is not compromised Device ID The user can specify the name of the GasClam in the Device ID box This is useful if there is multiple GasClam on a site as the borehole number can be allocated to the GasClam This information is used to create
19. instrument the GasClam must not be installed Unrivalled Detection Page 9 of 48 GasClam The effects of water on vour GasClam Effects of flooding on data and GasClam When the unit is not sampling it has an ingress protection rating of IP 68 However e Immersion will effect data and e May require subsequent corrective action These effects and requirements will differ whether immersed from above i e flooded headworks or from below i e rise in borehole water level see table below Headworks Should vent breather be If chamber is known to submerged flood or is already full of e atmospheric pressure Use borehole pressure as approximate water reading will be incorrect replacement or use data from another e Choose another and will remain incorrect source chamber e Scheduled venting will be e Orreplace ineffective snorkel with bolt If submerged for an extended When GasClam is visited period the vent pipe may become e Check data and call service flooded centre if atmospheric The vent breather may become pressure looks strange and clogged by dirty water they will advise Flooded Remedial action Preventive maintenance Borehole Should water reach the bottom of the GasClam the inflow and outflow valves will remain closed Effects on and no samples will be taken data e borehole pressure reading will be incorrect e gas concentration readings will be incorrect Effects on data If chamber is liable to flooding e rep
20. iple parameters Data chage Dif cos O view voc M view CO2 O view Temp L1 view Water 7 view value L view H25 L view CO view Atm view Bore 26 Jun Date and time Unrivalled Detection Pa d ard GasClam Software Import data into External Spread sheet Data is provided as a CSV file and can be imported into various spreadsheets for manipulation This is normally done using the import function and selecting delimited and then selecting comma as the separator Text Import Wizard Step 2 of 3 Aa This screen lets vou set the delimiters your data contains You can see how your text is affected in the preview below Delimiters i flde Vo Spacee _ Other r1 Text qualifier Treat consecutive delimiters as one Data preview 28 04 2009 15 57 48 28 04 2009 15 59 33 287 0472009 16 01 18 28 04 2009 16 03 03 28 04 2009 16 04 45 Unrivalled Detection Page 32 of 48 GasClam Software Infograph All the values of the parameters at any particular time can be displayed by using the info graph window This is turned on by clicking the view value box These values will update as the cursor is dragged over the graph a GraphNew Data channel CO2 UD Info Graph na Amd tim Vate and time Methane r con j Carbon Dioxide Oxygen gt g AA Carbon Monoxide Borehole Pressure Temperature Water Level Start Stop data To display the sampling log
21. is the world s first in situ borehole gas monitor suitable for the detection of a wide range of gasses commonly found in borehole monitoring including Methane CH Carbon Dioxide GO and Oxygen O In addition to this the GasClam monitors temperature barometric pressure and borehole pressure All of these readings can be taken at programmable intervals providing an invaluable set of data to the user The default setting for the GasClam is to take readings every hour giving it an operational life of approximately one month with rechargeable batteries Data is downloaded either using a computer or via an optional modem and can be viewed within the GasClam software or exported for analysis in Excel Whilst connected to the software the settings of the GasClam unit can be altered including the frequency at which samples are taken and selecting venting options In addition to the sensors already mentioned the GasClam can be upgraded with a Photo ionisation Detector PID for detection of Volatile Organic Compounds VOC s a Carbon Monoxide CO sensor Hydrogen Sulphide H2S sensor and a water depth sensor should the data be required It is recommends that regular customer bump tests take place in conjunction with an annual service and calibration which is performed by the service department or an approved service centre Before using the GasClam you must read this manual paying particular attention to the sections covering optimisation of Ga
22. lace vent breather each visit Effects on GasClam If borehole water level is known to Data points collected whilst the be high or is already full of water sampling cycle was disabled e Chose another chamber will be marked e Or extend the borehole above ground level In some circumstances if the GasClam is removed from a borehole where water has been above the base of the GasClam a droplet of water may fall on the inlet Every time a GasClam is removed from a borehole the inlet should be checked to see if a water droplet is on it If so dry with a cloth If there is any chance water may have entered the inlet contact your local service centre and do not start GasClam Effects on GasClam Unrivalled Detection Basi erd GasClam Optimising GasClam Performance Read the Cross sensitivities and sensor performance section to understand how each gas is detected and the implication of environmental conditions on their detection Understand the implication on sampling and bump testing if a 596 CO2 sensor is installed see section technical specification pg 45 To optimise GasClam performance follow the advice in the effect of water on your GasClam section At least every month the GasClam should be removed from the borehole if installed for long periods When removed the GasClam should be e Downloaded and the data checked if there are any problems contact your local service centre e he GasClam should be inspec
23. low Alternatively and on demand regulator can be used E User Bump Test process Enter values Values ppm 21 a 0x e ox amp mbar mbar mbar mbar X Enter Tick box concentration of Measured Result Gas here value N B The flow rate of the GasClam is 420 ml minute therefore a flow regulator with a minimum flow of 500 ml min is required Excess Pressure GasClam Inlet Unrivalled Detection Page 35 of 48 GasClam Software The recommended gas bottles to use for bump tests are Bump test i 40ppm balance air 20ppm balance air Isobutylene 100ppm balance air 4 cnwcozo 60 40 07 C CH4CO O 2 5 2 20 9 Ne Pure zero 02 Note It is possible to bump test multiple sensors simultaneously however some of the sensors will have cross sensitivities at the bump test concentrations therefore the sensors are separated out HeS levels at the concentrations the GasClam is bump tested at affects the performance of the CO sensor therefore the CO channel is bump tested before the HS channel Also CH at 60 will inhibit the PID sensor so it is bump tested separately See cross sensitivities section for more information Also if a 596 CO sensor is fitted it will take 2 3 samples for the GasClam to read the bump test gas concentration This is because the filter causes a lag when CO concentration increase or decrease See sensor performances section The order to bump test the sens
24. lready have this version and you try to upgrade an error will occur ignore this and go to the next option 2 If you already have this version of DotNetFX then double left click the GasClamUnit icon The guide will then take you through the installation process step by step The default location for the GasClam software is C Program Files Salamander GasClam Unrivalled Detection Page 15 of 48 GasClam Getting Started Battery Change Warning For reasons of intrinsic safety batteries MUST NOT be changed within potentially flammable areas Always ensure you are in a safe area before carrying out any type of maintenance on your GasClam Battery types that can be used For Intrinsic Safety and reduced risk of explosion you must only use 2 x 1 2V LR20 Nickel metal hydride Saft VH D 9500 rechargeable pack provided or 2 x Duracell 1 5 V LR20 Alkaline Manganese MN1300 batteries Do not mix old and new batteries within the same unit change both batteries at the same time Failure to do so will reduce battery life of the new cell fitted The battery compartment is accessed by removing the 4 screws from the battery compartment lid see diagram To remove the batteries tilt the GasClam until they fall out Replace with the stipulated batteries positive terminal facing down Take care when replacing the cover to ensure the O ring is not damaged by following the instructions below The integrity of this O ring should be checked every ti
25. me the batteries are Push the battery compartment lid down square on the replaced This needs to be replaced if any GasClam damage is noticed When the O ring is resting on the battery compartment push the lid down evenly on both sides to ensure it travels down square This will prevent damage to the O ring When the O ring is sitting in the compartment loosely tighten the screws The lid must sit flush with the head of the GasClam otherwise the intrinsic safety of the unit will be compromised When tightening the cover alternate between screws to ensure the cover sits on the GasClam squarely If this is not done the O ring may be damaged GasClam Software Connecting The GasClam is connected to a computer using the supplied cable via the communication port on top of the GasClam and a serial port If the computer does not have a serial port use a standard USB Serial converter You can either connect the unit before or after starting the software If the software is opened before the GasClam is attached the screen appears as below n this mode the options available are to view data see later or to close the application Last Reading Stored hane Carbon Dioxide Oxygen On Line Status Battery status Samples Remaining Sample Count Hydrogen Sulphide Sampling Every End Date Carbon Monoxide Serial Number COM port Borehole Pressure Vent Mode Status Atmospheric Pressure Volatile Organic Compound Tem
26. ne is measured using an infrared detector tuned in to C H bonds The sensor is calibrated using certified methane calibration gas and will give accurate readings providing no other C H compounds are present If additional hydrocarbons are present they will contribute to the reading Carbon Dioxide Carbon Dioxide is measured using an infrared sensor tuned in to C O There are no other gasses commonly found in the subsurface that adsorb infrared radiation at this wavelength so the reading will not typically suffer from cross sensitivity 596 Carbon Dioxide Sensor When sampling concentrations up to 596 the sensor will read 9096 of the real value after one sample typically this will be within error of the sensor For example if you are sampling every hour and the real concentration changes from 096 2 596 in 1 hour which is unlikely the senor will read approximately 2 2596 In reality if low concentrations are present they will change much more gradually than this i e Real Conc 96 CO2 Measured concentration 1 0 J4 0 J S 0 ooo L b L U PD Hg n 09 within error 0 279 3 09 21 21 90 0 189 0 189 last reading 09 a within e Unrivalled Detection Page 45 of 48 GasClam Technical Specification When concentration decreases the reading will also be 9096 of the real value after 1 sample Below are examples when 4 7 GO has been sampled and how the sensor filter clears down in air O
27. nning a bump test on your GasClam During a bump test a known concentration of gas is pumped through the GasClam and the value measured is displayed If the measured concentration is within the tolerance of the sensor the bump test is passed and indicated by a tick if it is outside this range the bump test is failed and indicated by a cross The values are informative only i e nothing is saved on the GasClam settings and used to decide if a calibration is required The bump test menu is entered by clicking the Bump Test button on the main screen To check the performance of the relevant sensor s tick the box next to the sensor name then enter the concentration of the test gas in the Enter Values column If you want to test atmospheric gas the Enter values for Air button can be used to set the concentrations Before starting the test connect the gas line to the inlet barb The test is then started by clicking the Start button The whole bump test cycle will take approximately two minutes after which the measured concentration is displayed in the Values column and the result of the test is indicated by a cross or tick If a cross occurs contact your service centre and they will advise on action The sensors must be checked at atmospheric pressure as the calibration gas bottle will be pressurised it is important that the excess pressure is vented This is achieved by attaching a T piece between the gas bottle and inlet see diagram be
28. of the unit click the Start Stop Data button Information regarding when and how the unit was started and stopped date the action was taken memory space left and sampling frequency and how many samples was taken is reported see below for an example Unrivalled Detection T volatile Organic Lompouna lydrogen Sulphide Atmospheric Pressure Diferential Pressure 26 Jun Date and time Page 33 of 48 GasClam Software HE viewDataNew File name UserssPublicsDocuments 5 Chamber GasClam Dual sensor testGasClam 14 14 4 2010 13h30m42s GCL Oen Ge __ Back PI Code Note M Start Measuring 12 04 2010 13 20 4 tana Sop wamo tesa Senger l L Ren Memo 13 06 2010 1036 Saring ey Tang e Sat onn Evy Tong of mena 1020101132 See Gam 1 71T771 L Sat anan 13 04 2010 11411 Soy ey Tang 7 L M Sat Mennan 14 2010 on Sat nan 7 m san team 1 04 2010 1227 Ton Note If the GasClam has stopped due to low battery a note indicating this will be left in the code column Calibration Data In this section the calibration date and constants are displayed Error Messages All errors are logged and can be viewed here see pg 20 for details Eeprom Firmware constants are displayed in this tab These are useful for the service centre when trouble shooting Unrivalled Detection PT GasClam Software Bump Test You can check the performance of the sensors by ru
29. ors in is shown below If the sensor is not installed ignore that step Due to the different available combinations of CO2 CH sensors there are 3 different scenarios for bump testing the sensors 1 10096 CO and CH Sensors Bump test step Gas 1 Concentration 2 Concentration 1 cO 0 z J Bottle 60 40 CH CO CH 6096 3 co 4096 O 0 4 isobutylene 0 100ppm Calibration table 1 Unrivalled Detection Page g olde GasClam Software 2 596 CH and CO sensor if other sensors are fitted follow the relevant steps in the table 1 Use N for 0 Bump test step Gas 1 Concentration 2 Concentration 2 5 2 20 9 N2 CH4 CO 0 Gas bottle 2 5 2 20 9 2 3 samples will be needed to reach concentration Calibration table 2 3 Mix of any 5 and 100 CO CH sensors if other sensors are fitted follow the table 1 Bump test 5 Yo CO sensor first if installed Use N for 0 Bump test Gas 1 Concentration 219 Concentration step CO N for 5 sensor Air for 100 sensor 2 or 40 CH N for 5 sensor Air for 100 sensor 2 5 or 60 KI 0 N 20 9 Air 2 3 samples will be needed to reach concentration Calibration table 3 Other Tests This section is for service centres Unrivalled Detection Page 37 of 48 GasClam Installing GasClam in a Borehole The GasClam is designed to fit in to a 50 mm borehole The recommended headworks are 8 Monitoring wells
30. ow many samples can be taken at 9096 Relative Humidity RH at different temperatures 9096 RH is assumed to be worst case P No of Samples at Temperature C 90 RH Typically temperatures in a borehole will not exceed 15 C and not go below 3 C however this will depend on installation If the GasClam is used above ground then temperatures can vary more widely The rechargeable battery on the GasClam lasts approximately 670 samples To ensure the GasClam does not take more samples than the filters capacity use the table above to set the sample count See GasClam Set up pg 24 to below the number of sample the filter will last at that temperature E g if the borehole is 30 C set the sample number to less than 520 It is unlikely humidity in the borehole will be above 90 all the time and to help assess how to manage the filter after the first installation there is an indicator system The indicators work differently below 30 C and above 30 C Filter management below 30 C Below 30 C the top indicator turns pink after approximately 40 of filter life and the bottom turns pink after 50 of filter life For 15 C and 90 RH the indicators will change in accordance to the table below Unrivalled Detection Page 5 of 48 GasClam The effects of water on vour GasClam 2015 anistonw No of Environmental conditions No of samples to turn bottom indicator pink Max No samples to of samples S ap ind
31. perature Water Level Version 5 4 25 E English m Last Reading Stored Volatile Organic Compound GasClam ID Hydrogen Sulphide Carbon Monoxide On Line Status 13 05 2010 13 30 01 Battery status 2 50 V m Oxygen Samples Remaining 64393 Samples Taken 7 Methane Sampling Every 60 min End Date Carbon Dioxide Serial Number 000001 11 09 COM port COM6 Borehole Pressure Vent Mode Close Status heo NES Atmospheric Pressure Temperature Switch Gasclam OFF Fimware 07 07 220 HW 7 The window is divided in to 3 sections navigation tabs view data download setup and user calibration bump test other tests Online Status and Last Reading Stored Unrivalled Detection Page 17 of 48 GasClam Software Main Screen Battery status displays battery voltage alongside a power bar the bar changes colour according to capacity providing a rough guide to battery life Green Capacity is fine for a long sampling period Orange Batteries need to be replaced very soon Hed Replace batteries immediately The voltage in the battery will decrease when the GasClam is sampling due to a load on the batteries this is the voltage that should be used to assess battery condition This is also the voltage that is logged Note If the battery capacity is no longer sufficient for the running of the unit during a programme the unit automatically interrupts the cycle and switches to sleeping mode this
32. pm Electrochemical 0 5000 PPM 1 PPM lt 3ppm at 0 5 Linear at 0 and 400ppm at 250 ppm error at full scale 15ppm i lt 1 ppm at 0 Linear at 0 and 20ppm error Electrochemical de E LP 2 596 at 50 ppm at full scale lt 4 ppm voc PD 0 4 000 PPM 1 PPM t 970 U ah a 5 to 100 ppm Optional opecifications obtained under laboratory conditions of gas flow temperature and humidity Field performance is dependent on the correct installation procedures being followed environmental conditions frequent sensor cleaning and regular calibration Some of the sensors have cross sensitivity for more information contact your local supplier Details are subject to change without notice Memory 65000 time date stamped readings Power Rechargeable battery pack or 2 Duracell 1 5 V LR20 MN1300 Battery Life Rechargeable battery pack will last approximately 1 month at an hourly sampling rate in a GasClam with all the sensors 15 C Unrivalled Detection paged oly GasClam Technical Specification If used at a slower sampling frequency note the NiMH batteries self discharge at a rate of 15 20 per month Duracell 1 5 V LR20 MN1300 Alkaline Manganese batteries will last approximately 14 days hourly sampling in GasClam with all the sensors The self discharge of alkaline batteries is much less and as a rule of thumb the alkaline batteries will last approximately 300 samples over a time scale of up to 1 year The discharge
33. r Barometric Pressure 800 1200 mBar Temperature 5 C to 50 C Optional Water Level 0 25m Optional Dual CO H2S sensor 0 500ppmv 0 200 ppm Optional VOC 0 4 000 ppm Optional H S 0 5 000 ppm Optional CO sensor 0 100 ppm Unrivalled Detection Beber GasClam Software Errors If the GasClam is not functioning correctly an error message will be displayed at the top of the Software home screen see below Cer wx S amp Errors Eta English x GasClam a umm Last Reading Stored Setup User Calibration On Line Status 13 05 2010 15 03 41 Carbon Monoxide Battery status 250V el Samples Remaining 64993 Samples Taken Fi Sampling Even 60 min End Date Serial Number 000001711709 COM port COME Vent Mode Close Oxygen Methane Carbon Dioxide Borehole Pressure gatus e o Stat Atmospheric Pressure Temperature Switch Gasclam OFF Water Level Firmware 7 09 96 HW 7 Salamander Unrivalled Detection Page 20 of 48 GasClam Software Different errors require different solutions these are summarised below Reason Low Battery Battery voltage is below 1 8V for GasClam will run but batteries need to be 10s changed immediately Flat Battery Battery voltage is below 1 8V for GasClam will not sample batteries must 60s be changed A MW Change the moisture stripping filter li nazan REN N DI METAS this does not work then call the service clogged cenire When water
34. r will either go off scale positively or negatively The atmospheric pressure channel will also have a dramatic increase whilst the valve is frozen In the picture below a GasClam was cycled between 10 and 10 C at 98 RH When the temperature reaches 5 C O goes of scale positively and atmospheric pressure increases by 20 mBar When temperature rises the valve thaws and O concentrations are correct 30 03 2012 30 03 2012 30 03 2012 30 03 2012 31 03 2012 31 03 2012 31 03 2012 Typically the GasClam is installed in boreholes below the ground and the GasClam will not go below O C due to ground heat If the GasClam is installed above the ground insulation or a heater will be needed to prevent freezing If you are unsure about your GasClam installation contact your local supplier Unrivalled Detection Page 47 of 48 GasClam Update Log Date Updated Instrument Firmware Instrument Software GasClam V2 Filter management section 20 07 2012 7 11 248 5 4 33 added How to prevent water from entering updated Packing list updated Optimising GasClam performance updated Errors up dated Bump Test Updated User serviceable part updated Part numbers updated Technical Specs updated Changes updated in version 2 1 Unrivalled Detection AA d
35. re in the borehole is lower than atmospheric and if the pressure is positive it is higher than atmospheric C Temperature in degrees Celsius mbgl Water level meters below ground level Battery Battery capacity volts The voltage recorded is the voltage under maximum load The voltage bar on the front screen Is a live reading of the battery voltage and will change during the sampling sequence as the load on the battery changes Filter Pressure Every time a sample is taken the borehole pressure is measured then when the pump is running the pressure whilst the pump is running is compared to the borehole pressure The maximum differential is recorded under as the filter pressure If this exceeds 50 mBar a filter error occurs The most likely cause of the problem is the filters performance has reduced causing the flow path in the GasClam to be constricted If this happens replace the filter If the problem persists something else is causing the blockage and the service centre must be contacted immediately If the pressure is below 5 a pump error is flagged This will be due to a faulty pump or faulty power supply to the pump The filter pressure is normally between 15 25 lt is possible to order the displayed data according to individual parameter by clicking the column header one click arranges them in ascending another click arranges them in descending order i ViewstNew JANM __ EE File name C Users peter marris ONSCIEMCE De
36. sClam performance and the effects of water on your GasClam Note Before removing the GasClam from the field it must be run once in atmosphere to purge any hazardous gasses GasClam is a registered trade mark of Intelisys Limited t a Salamander Group Unrivalled Detection PET GasClam The effects of water on your GasClam GasClam is designed to overcome as far as possible the requirement to e measure gas concentrations e measure borehole and atmospheric pressure e allow a venting pathway between the borehole and atmosphere To measure gas concentrations the gas must be dry and measurements of atmospheric pressure should not include the pressure of overlying water As the GasClam can be in a position liable to flooding from above flooded headworks and below high borehole water level your help is required to optimise the performance of your GasClam by e carrying out simple preventive and remedial maintenance e being aware of the limitations of data gathered under flood conditions Keeping your GasClam dry and clean in regular use To dry the gas before measurement by the CH and CO sensors there is a moisture stripping filter in the bottom section of the GasClam Over time this will hydrate and its ability to remove moisture will decrease If moisture is not successfully removed concentration readings can be effected The amount of samples that can be taken will depend on temperature and humidity The table below shows h
37. seeeeeeeessaeaeeeeeeees 14 Software INSTAN NON RR RRH 15 SYECItBa Te Vilt t c ERR 15 Running the installation software 1 lssesessssseseseeseee enne nnne nennen nnne nnn kK KA KK KK KK KK KK kk K KK KK arri snas kK KK anres 15 Battery Change m P hhh mm 16 coU 17 So AN CLM VO NN EE ERE 17 NOUN SOTE X x xw x_ rw r_r r_r _ _r_r_ri_r_r_r_i_ __ mb 18 ASE TE ACG S O SO y te tate tt tt E a ta tr a t n po n tib a a E ee l is lt ka t A E 2gp 19 zeit pit atou tate at na E l t a l l e 20 mne agrees dU Vie T na l TET l ki a e n e l A AE e koki ia rr ee eta san 23 DO LI Osi ik A a oye e l T 24 TA FRA cfc kali eat Dy a e io eee ene bes ese e a e ki a bk bwe kt kad a ia be kite pik kapa Danbala oke koua 24 Ye 14 0 E 6 bene aie pen pen pon a pan tek n a ian ai e a r ba rrr mise e pk be no da bk ken 24 Dy a A E 24 d uis 25 WV AIO ON VI 25 CH GEN INN ee TT T ae a en ek so do n ee ee e af ei ki l m olie pi me ao ot p ad e 2
38. sktop Pokles na 10 4 cykdy GCL m Open Samping Data Start Stop Data Galbrations Data Eror Messages Eeprom Date SY Pressure 1 30 03 2012 07 09 0 0 0 16 4 1104 0 864 864 17 3 2645 2 71 23 2 30 03 2012 07 13 D D D 16 5 1069 0 8654 861 165 2644 3 2 72 28 3 30 03 2012 07 18 0 0 0 16 6 1054 0 864 15 6 26 44 6 2 69 29 4 30 03 2012 07 23 16 6 1045 0 864 856 148 2644 8 2 72 26 5 30 03 2012 07 28 0 16 6 1035 0 8654 855 14 1 26 44 3 2 70 28 El an m m 07 72 n n n 1E R 1n3k n REA PIRR 138l MAA 2n 77 Example of Sampling Data Screen Unrivalled Detection Page 29 of 48 GasClam Software To view the data in graphical form click the Graph Data view toggle button Graph Data view toggle button l pata Viewer Va joj xl File name D won a asCTam s asLTam data SALAMANDER test 21 5 2007 Bh zm32s ACL zl Open raph Back Type of view Start Stop Data Calibration Data Device ID SALAMANDER testi This opens the Graph view window shown on next page Selecting data channel To select a data channel click the desired parameter from the Data Channel box see below Multiple parameters can be displayed by clicking more parameters 20 02 on 17 Jun Z J un 242 J un Zb Jun 223 J un 2 Jul Date and time Unrivalled Detection Pa otsbar 4 GasClam Software Displaying mult
39. t completely removed if this happens the PID response will decrease To recondition the lamp set the GasClam to sample every 3 minutes and run for 1 hour in clean air then perform a bump test If the sensor has not completely recovered try reconditioning for longer If this does not work contact your local service centre Additional CO H S sensor performance information If the GasClam is located in a zero oxygen environment for longer than 24 hours the CO and H2S sensor performance may be hindered To return the channels to optimal performance the sensor needs to be left exposed to an oxygenated environment for the same length of time as it was deprived of oxygen for Above 8596 RH and 40 C a maximum continuous exposure of 10 days is recommended Where such exposure occurs the sensor will recover normal electrolyte volumes when allowed to rest at lower Yo RH and temperature for several days If very accurate CO or H S measurements are required it is recommended that a single CO or HS sensor is used Unrivalled Detection agede arde GasClam Technical Specification Potential problem if used below 0 C If the GasClam is used below O C in high humidity the valves may freeze This will prevent the GasClam from sampling properly and a filter error and pump error will be flagged This will not damage the GasClam when temperatures rise above 0 C it will function correctly Another indication that the valves have frozen is that the O senso
40. tact local service centre if any signs of Pink Pink moisture If sampling in the same borehole again reduce the number of samples the gasclam will take so both indicators do not turn pink Unrivalled Detection Page 7 of 48 GasClam The effects of water on vour GasClam How the GasClam prevents water entering from above To prevent water reaching the vent pathway the snorkel should always be attached to the vent hose barb The top of this should be supported so it is located at the top of the headworks to reduce the chance of water ingress In situations where the headworks is likely to be flooded the hose barb must be replaced by the vent blank The supplied box spanner can be used to remove the hose barb and the supplied vent Alan key used to replace with the vent blank and washer If the vent blank is inserted you should set it in the setup window see pg 24 The Atmospheric pressure will not be measured in this mode The GasClam should always have the snorkel attached to the vent hose barb A In situations where the headworks is likely to flood the hose barb must be replaced by the vent blank and washer B Unrivalled Detection TET GasClam The effects of water on your GasClam How the GasClam prevents water entering from below To prevent water entering the GasClam from below a water proximity sensor sits lower than the inlet If water rises up the borehole and touches the water proximity sensor the GasClam will not s
41. ted for any signs of wear and tear especially water ingress e The moisture stripping filter changed see pg 39 Check integrity of the two O rings in the moisture stripping filter compartment if compromised replace immediately spares provided an accessory kit e All the channels bump tested see pg 35 e Also the GasClam should be left to run in fresh air at least 20 samples to allow the sensors to recover from any potential contamination cross sensitivities effects of non oxygen environments and high humidity conditions see pg 44 e Change batteries see page 16 Check the integrity of the battery compartment O ring if compromised replace immediately spares provided an accessory kit Note If conditions of 85 RH and 40 C have persisted for more than 10 days the H2S CO and O sensors may need to be reconditioned see pg 46 Battery life and management The rechargeable battery pack will last approximately 1 month at an hourly sampling rate and should always be used in preference to alkaline batteries The alkaline batteries can be used when the rechargeable battery has not been charged and the GasClam must be deployed immediately Alkaline batteries will last approximately 14 days hourly sampling The voltage of the rechargeable pack after fully charging is 2 65 volts Check this voltage is displayed on the battery indicator in the software front screen when a fully charged battery is installed The battery voltage displa
42. th the filter and push up with both To replace filter 1 Connect the tygon tube to the barb 2 Push the fitting together 3 Push filter completely down firmly from the top GasClam Service and Calibration Snorkel The snorkel should be checked regularly if there is any damage replace immediately Collar Inspect the collar regularly if there is any signs of damage replace immediately Battery compartment O ring Inspect regularly and if there is any sign of damage replace immediately LIS NE 786 Tac ee ita MON e TT TT Mele TT ST TT ak TT II IN on AB Battery Compartment bolt a washer retained Pack of TT TT KENNEN N NN id me en en a TT TT Tan TT TT JININIENN TT TT en TT Tj TT TT Taman TT TT Unrivalled Detection page d0 ek GasClam Service and Calibration Spare parts for users vT GasClam Technical Specification Sensor Specifications 0 100 196 of measuring CH Infrared 9 59 j range above 50 2 FSD 2 FSD or 10 reading j 0 5 below 50 0 100 196 of measuring CO Infrared xo range above 5095 2 FSD 2 FSD or 10 reading 0 5 0 5 below 50 Electrochemical K B 596 of reading 1 1 O deviations 10 ji digit O Electrochemical 0 500 PPM 1 PPM lt 3ppm at 0 396 Linear at 0 500ppm error at 250 ppm at full scale 15ppm Electrochemical 0 200 PPM 1 PPM lt 1 ppm at 0 2 Linear at 0 to 200ppm error at 100 ppm at full scale 4p
43. unctioning correctly the status will read undefined status if this occurs contact customer services immediately Unrivalled Detection Fa e wad GasClam Software Status J Start START STOP Button this has several modes The unit is in sleeping mode to Al on start the GasClam left click the button rc S Latus Sampling Stop The unit is actively sampling it can be stopped by left clicking the button after a asa this has finished the button changes to status W Mouin Stop The unit is between samples and the programme can be stopped by left clicking a Ud the button After starting the GasClam through the software wait until the first cycle is complete The last readings stored will be updated and these values can be used to check that the GasClam is functioning correctly Also this will remind the user that the GasClam has been started before leaving it for a period of unmanned data collection Firmware shows the firmware version in the unit Always use the software designated for the given firmware version Last reading stored The last recorded values are displayed in the Last Reading Stored box If the sampling cycle has started these values will display measuring and are updated throughout the sampling process The displayed ranges of individual sensors are as follows Methane 0 100 or 0 5 Yo Carbon Dioxide 0 100 or 0 5 Oxygen 0 25 Borehole Pressure 800 1200 mBa
44. valled Detection pageti arig GasClam Getting Started Packing list Please take a little time to examine the contents of the GasClam package Ite Description Qty Barbs Fitted Box spanner for removing barbs Blank NOT Fitted washer Length of pipe 30cm Battery Allen Key Vent blank Allen Key Communication cable otart cable Manual and software on CD Rubber Collar GasClam Unit 1 5v Duracell Batteries Fitted Moisture Stripping Filter Rechargeable battery Recharger L Accessory Kit Moisture stripping filter Snorkel complete Snorkel filter Pack of o rings A 25066 Pack of o rings A 25067 C1 QI ro O Turning on the GasClam The GasClam can be switched on and off using the remote The remote connects to the communication port on top of the GasClam To start the GasClam hold the button down for two seconds the red LED will flash rapidly indicating the GasClam has started and is currently going through the processes in a sampling cycle this equates to sampling mode After the sampling processes have finished the red LED flashes intermittently this equates to the measuring mode To stop the GasClam press the button for two seconds when it has stopped the LED will stop flashing this equates to sleeping mode No flashing oleeping Rapid flash Sampling Intermittent flash Unrivalled Detection Pagodo orae GasClam Getting Started Physical Characteristics
45. will be logged as a battery error The data is stored in the flash memory therefore the data will remain in the GasClam even if the batteries are completely flat Samples Remaining displays the remaining number of samples that can be stored in the memory Samples Taken When the GasClam is in sleeping mode this reads samples taken indicating how many sampling points are stored on the memory When the GasClam is in sampling mode it reads sample count and displays the number of finished cycles and the total number of cycles in the programme For example 254 4500 means that 254 cycles from 4500 required cycles have finished sampling every shows the period between sampling For example value 60 mins means that sampling frequency is 1 hour End Date displays the date and time that the sampling programme will finish Serial Number displays the serial number of the unit COM port displays which port the unit is connected to Status displays the mode of the unit When the unit is running a programme the following modes are possible Sampling the GasClam is actively making a measurement Measuring the GasClam is between sampling periods When the GasClam is not running a programme the following modes are possible Sleeping the unit is not running a programme In this mode data can be downloaded and the unit programmed Clear flash the unit is erasing flash memory data lf the GasClam is not f
46. xygen The oxygen sensor is a Galvanic sensor and is very specific lt has a little cross sensitivity with CO 5 Yo CO only causes a 0 196 change in reading Humidity has a little affect on output between 0 96 to 9596 rh the Yo Os change is 0 7 Yo The sensor can work between 5 95 RH continuously and 0 99 short term VOC The VOC sensor is a mini photo ionisation detector PID and is sensitive to any VOC s that have an ionisation potential less than 10 6 eV The sensitivity of the sensor depends on the VOC present The sensor is calibrated to isobutylene and its response to other VOC s can be calculated using that compounds response factor A response factor is a number which relates the PID response to a particular VOC to the PID response from the calibration gas normally isobutylene If the response of a PID to a particular VOC is eight times smaller than it is for the same concentration of isobutylene then the response factor would be 8 Similarly if the response factor for a particular VOC is 0 5 the response is twice that for isobutylene at the same concentration Concentrations greater than 4 CH and CO will attenuate the response of the PID sensor Some VOC s after ionisation may stick to the PID lamp reducing the amount of ultraviolet light available for future measurements Before each PID measurement is made the lamp is turned on for 30s to burn the residual VOC s off However some VOC s may be more persistent and no
47. yed is a live reading and will decrease when the GasClam actively samples as a load is being placed on it Before leaving the GasClam observe the battery voltage during 1 measurement cycle and you will see it decrease To ensure the battery is fully charged and has good capacity download the GasClam after 1 sample and check the voltage in the downloaded file This should be approximately 2 5 volts or above if the battery is fully charged and has good capacity If it is below 2 5 volts the battery life will be compromised and should not be used If alkaline batteries are used new cells will display a reading of above 3 0 volts on the battery indicator and the voltage recorded on the GasClam after 1 reading will be over 2 9 volts If either voltage is below these the battery life will be compromised and should not be used For more information see technical specifications pg 42 43 Note of caution if used below 0 C If the GasClam is used below O C in high humidity the internal valves may freeze This will prevent the GasClam from sampling properly and a pump error will be flagged This will not damage the GasClam when temperature rises above O C it will function correctly Typically the GasClam is installed in boreholes below the ground and will not go below 0 due to ground heat If the GasClam is installed above the ground insulation or a heater will be needed to prevent freezing See technical specifications for more information pg 47 Unri
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