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UNDERGROUND TANK
" , " ,,,,.,-0 II ~I I!" ill i\ III ¡I I III ~ "1,1 " " ii 'w I ¡ I, 1 f I, l ; Ie ¡ ~ I· t 'i I. I~ ,I I, , I, I Leak Detection M .a n u.a L,' FOR THE HOUSING AUTHORITY OF THE COUNTY OF KERN II I I I I I . , ¡ CAL 8-14 UNDERGROUND FUEL STORAGE TANK PLAZA TOWERS 3015 WILSON ROAD BAKERSFIEW, CAliFORNIA I I ¡ I MARK TURK I I r ¡I II - I I - I i ~ I I ~ I I I I I I I I I I I '"""'I TRUSCO TANK INC. ~ '"- _ _ _ _ -- -- _ -- ---- -'- -- --- --'- -- --- It,' " 1/4.T R r¿~f ~~CA 9Jn!:!l.!:i!f'.lJi.IN C · x 10" x 10" Striker plate' ,1...: ~ FI8EP(·LASS (Typ, on Bottom of tank) . r:::l r:: -:-¡'ro ._r::':l :," M(1NITOR EXTERNAL ~ ~ ~ :l L.::J.lD I...: ~ ¡:¡TTING UL LABEL I...: ~ (¡: L \ I · TRlJSCO TANK INC. · TANK ()[Slew. nON · TANK NOMINAL CAPACITY · PRlAW?Y TNlK THICKNfSS · OAT[ MANUFACTURED l' if · UL NUI.I8£1? 8" 8" . - J6Ø Sump' ./~ r -. Ld ./ /., /' MONITOR TUBE r , r , l- I- l- e 0... 0... 0... 9- Z Z Z ~ -~ -st. :".q- - . -J '" 5" npt w/4" dielectric bushing m 4'-1" INSIDE I 344 ± GALLONS I') r.R.P. r Striker PI. SfC'(J(DIRY TN« (Typ.) -". J ave,"1I Length = 4'-4 7/8" J ONE 300 GALLON TANK Steel Primary Tonk TYPE 'D' NOTlS : I) 0.;9". CGn'1MJ<:\ion one! 'n\inq 01 !/Ie SUPfRTANK'", CO<II""", \0 Und....,;l.... Labaratoriø Slandard far Jaclœted and Steel ~d Tan1ð (primary lank conI."."" Ið Ul 58), 2) \he _G/IdaIY tank is an dI fiberglass ",inlarcod plastic latk wlWch encapsulates and isolates lhe primary tank in a tÎ9'" ~ com'9unMn (;,t, is not boMed to the m";ar sunace of 1/1. steel lank), J) lilt teeondory tank ffII11 be vacwm tested 10 20 ii, H'J- The tank is de&'ItAd with G'Ief 10 in. H'J, wcuum an annular epoce as the Uanulaclurer's recommended test far proal 01 intec¡rity lar both primary and tICOFIdo'y tanÞ. 4) Each S1.mTAIð(- is del'l'ItfTtd with installation mtnJctiont and 'JOUge loble One ~ stick is prov;ded W inttdlotian, 5) Bath ... 01 the to"" on Iohe!ed ,,;u, "'~"9 ftighL nominal 'J01on copocily. ond U1. /UTIber, &) Þcceø\oble manilar"'9 systems lar annulatinq are f..pd ,_. vapor sensor monud 6etermnotion or muot det8rmination in occordaI'ce wfth loco! and stote rec¡ulotions, 7) The SUPERTANK- is methanol compatible APPROVED BY; APPROVAL DATE : UL NO. L34--5Z10 NOM. CAPACI1Y LIFTING WEIGHT T N 300 Gallons 571 + Lbs. . SHOP ORDER 45Cfb P I TANK DESIGNATION I .' II ~~ßø Th~.JJ)~ f . ' III 300 GALLONS (nominal) PRIMARY TANK I CALIBRATION GAUGE TABLE 45.5 in. I.D.x 49.250 in. inside length 1/4" Striker Plate Allowance: yes I 5.0. : 4596 U.L. : L345210 DEPTH VOLUME DEPTH VOL UME I I""'-"""i,"'" "."':-..,;":' .,:.."" ..-, ":',.;..'",.';;',, ..:, ,.,.,.<"...:. .... ,..,:¡,.;: "..;..:,,::.,;',:,"'" ,~ 0.5 3 24 193 1 5 24.5 198 I ,1.5 7 25 203 2 9 25.5 208 2.5 11 26 213 I 3 14 26.5 217 3.5 17 27 222 4 20 27.5 227 I 4.5 23 28 231 5 26 28.5 236 5.5 29 29 241 I 6 33 29.5 245 6.5 36 30 250 7 40 30.5 254 7.5 43 31 259 I 8 47 31.5 263 8.5 51 32 268 9 55 32.5 272 I 9.5 59 33 276 10 63 33.5 . 281 10.5 67 34 285 I 11 72 34.5 289 11.5 76 35 293 12 80 35.5 297 I 12.5 85 36 301 13 89 36.5 304 13.5 93 37 308 I 14 98 37.5 312 14.5 103 38 315 15 107 38.5 318 I 15.5 112 39 322 16 116 39.5 325 16.5 121 40 328 I 17 126 40.5 331 17.5 131 41 333 18 135 41.5 336 I 18.5 140 42 338 19 145 42.5 341 19.5 150 43 343 20 155 43.5 344 I 20.5 159 44 346 21 164 44.5 346 21.5 169 I 22 174 22.5 179 23 184 I 23.5 189 I , I !i' I, !I I I !, II SUPERTANK liMITED WARRANTY I i ! I I : I I :1 I ' , I ! II , I II II i I I , I ~ I I I I I I I II I I I I 'I 1'-' "'-" 'I I I I I I I~ I II SUPERTANK ,. LIMITED WARRANTY UNDERGROUND STORAGE TANKS FOR FLAMMABLE AND COMBUSTIBLE UQUIDS. SeHer warrants to the original Purchaser at the original installation site that its SUPERTANK ,. double wall underground storage tanks when installed and operated in accordance with SeBer's published instructions and markings and upon Seller's receipt of tbe proper and certified installation check list: 1. Will meet its pubJished specifications and win be free from defects in materials and workmanship under Dormal usage and circumstances for a period of one (1) year following date of original delivery. 2. Will not fail for a period of thirty (30) years from the date of original purchase under normal usage and circumstances due to internal corrosion or txternal corrosion provided the tank is used exdusively for storing uncontaminated products as follows: gasoline, gasohol, jet fuel, av-gas, kerosene, diesel fuel, motor oil. 100% ethanol or 100% methanol at ambient underground temperatures or for fuels oils not exceeding 150 degrees Fahrenheit. SeUer's liability under this warranty shaH be limited to, at 'the SeHer's option, (a) repair of the defective tank, or (b) delivery of a replacement tank to the original point of sale, or (c) refund of the original purchase price. In no event shall SeHer be liable for loss1 damage. or expenses incurred by Purchaser and/or others in connection with any non-conforming materials or workmanship including costs expended for the removal. repair, replacement, or loss of use of any tank or facility or for any consequential damages of any type or nature whatsoever incurred by reason of the fact that the tank does not conform to this warranty. TIlE FOREGOING CONSTITUTES SELLER'S EXCLUSIVE OBLIGA nON AND PURCHASER'S EXCLUSIVE REMEDY AND SELLER MAKES NO OlliER EXPRESS OR IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICUlAR PURPOSE WHATSOEVER. Tank Owner: ~.(.µ 4$/nð ;1úl£1L7 InstaJlation Site Address: 3 015 ¿""~lr~v ft..¿/ 7!A/tPs,c/l:!LJj CI4 L 39'S 2-/0 U.L Number (s) : Job Number: Purchase Date: /~/2 ~/ -9 z- Seller: Trusco Tank Inc., P.O. Box 11925. Fresno, CaliförIua, 93775 Signed: ~~ ~-:/ Date: ?~?/i "5 ,/ ¿- ¿ (/ ~~ ~~,,,<-~çLJ In-I... 7/0"tO t I:::~ - d ~S3MO~~3d- ££=St G3M S6-Zt-^~W '¡ I \1 r I \1 - - I , / I , I ¡ I' I I I I I I I I I I I I \.. '" TANKGARD LEAK DETECTION SYSTEM ,) , 1- ~, 114wI il 11 :1 I I I I Iv I I I I I I I I I v . ~ ~ ~ TANKGARD® LEAK DETECTION SYSTEM instruction manual IMPORTANT WARNING THIS MANUAL MUST BE CAREFULLY READ BY ALL INDIVIDUALS WHO HAVE OR WILL. HAVE THE RESPONSIBILITY FOR INSTALLING, USING, OR SERVICING THE PRODUCT. Like any piece of complex equipment, the T ANKGARD\!9 L.EAK DETECTION SYSTEM will perform as designed only illt Is Installed, used and serviced In accordance with the manufacturer's Instructions. OTHERWISE IT COULD FAIL. TO PERFORM AS DESIGNED AND PERSONS WHO RELY ON THIS PRODUCT FOR THEIR SAFETY COULD SUSTAIN SEVERE BODIL.Y INJURY OR DEATH. The warranties made by Mine Safety Appliances Company with respect to the product are voided if the product is not Installed, used and serviced In accordance with the Instructions In this manual. Please protect yourself and your employees by following them. We encourage our customers to write or call for a demonstration of this equipment prior to use or for any additional Information relative to use or repairs. ©COPYRIGHT, MINE SAFETY APPLIANCES COMPANY, 1988 : ~. Manufactured by MINE SAFETY APPLIANCES COMPANY PITTSBURGH, PENNSYLVANIA, U.S.A. 15230 (L) REV, 10 460195 ,I --u I I- : I i I I I I ! I IU I I I I I I I u I: II ., General Cautions and Warnings 1. The TANKGARD Leak Detection System must be installed, operated and main- tained in strict accordance with its labels, , cautions, warnings, instructions and within the limitations stated. 2. The T ANKGARD Detection System con- trol unit is general purpose; it is not intrinsically safe or explosion-proof and must not be installed in areas or locations where explosive concentrations of combustible gases or vapors might occur in the atmosphere. Since the TANKGARD control unit is not intrinsically safe or explosion-proof, it must be located in a nonhazardous area. 3. To prevent ignition of hazardous atmospheres where the sensors are located, the intrinsically safe circuitry must not be altered, modified, removed or jumpered. Before removing sensors for maintenance or calibration, remove power from the T ANKGARD Leak Detection System and make sure that the surrounding atmosphere is and remains free of toxic and combustible gases until the sensors are replaced. 4. The T ANKGARD Detection System is designed to detect certain hydrocarbon vapors. It cannot measure the concentration of gases or vapors in steam or inert or oxygen-deficient atmospheres. Neither will it indicate the presence of explosive or combustible mists or sprays, lubrication oils, nor explosive dusts such as grain or coal dust. 5. Long exposures to certain compounds in the tested atmosphere may contaminate the sensor. In atmospheres where the sensing head may be exposed to such materials, perform calibration frequently to ensure that the system operation is dependable and its indications are accurate. 6. The sensor must not be painted. If painting occurs in an area where a sensor is located, make sure that paint is not deposited on the sensor. Such paint deposits would interfere with the diffusion process, whereby a sample of the atmosphere being monitored diffuses into the sensor. 7. The only absolute method to ensure proper overall operation of this instrument is to check it with the substance to be monitored. 8. Use only genuine MSA repiacement parts when performing any maintenance procedures provided in this manual. Failure to do so may seriously impair in- strument performance and may void all warranties and approvals. Repair or alteration of the TANKGARD Leak Detection System, beyond the scope of these maintenance instructions or by anyone other than a certified MSA ser- viceman, could cause the product to fail to perform as designed and persons who rely on this product for their safety could sus- tain severe bodily injury or death. 9. The TANKGARD Detection System must be installed, located and operated in accordance to all applicable codes. These codes include, but are not limited to, the National Fire Prevention Code and National Electric Code; 10. Due to the variety of surface and soil conditions, placement of monitoring wells should 'be de [ermined by someone familiar with local conditions and codes. I 11,v \1 II I I I I I ILi I I I I I I I II I I Table of Contents Section 1 General Information ....................................................................... I-I ................. .... ............. ..... ........... ............ .... ...... .... .......... ........ ...... ...... 1-1 General Specifications Figure 1-1. TAN KGAIill Control Unit ................................................................................................... 1-2 General Description ...... ........................... .......... ...... .......... .... .... .... .... ........ .......... ...... .......... 1-3 Figure 1-2. Typical Service Station Installation ............... ...... .................. .... .......... ............................ ..... 1-3 Figure 1-3. Double- Wall Tank and Typical Well Installation ................................................................. 1-4 Features ............. ................. ........... .................. ... ............. ...... .......... ...... ........ ........ ...... ... ...... 1-5 Test Button Feature ... .......... ...... ........................................................................................... 1-5 WARN IN G ............................................. ........ ...... ..... ............. ................ .......... ...... ............. 1-5 Delay Feature ..................................... .......... ............ .... ........ ...................... ............ ........ ...... 1-5 Optional Accessories ... ...................................... ..................... ........... ........ ...... ................ ..... 1-5 General Ins talla tion ........................................... .......... ......... ...... .......... .......... .......... ...... ...... 1-5 CAUTION ......................................................... ...................................... .......... .............. ..... 1-6 ..................... ................ .......... ............ ............. ............. ...... .... 1-6 ............... ................ .......... ........ ........ ...... ........ ............ ...... .... 1-6 Single- Wall Tank Installation Double-Wall Tank Installation ,Section 2 Installation ....................................................................................... 2-1 Mounting the Tankgard Control Unit 2-1 2-1 ............................................................................... ... CAUTION ................................................. .......... ... ............. ...... .......... ........................ ......... S ensor Placement ........................................... .......... ............ ........................ .......... ........ ...... 2-1 Single-Wall Tank Sensor Placement ..................................................................................... 2-1 CA UTIO N ...................................... ............. ...... ....... ....... ...... .......... .... ...... .... ...... .......... ....... 2-2 Double-Wall Tank Sensor Placement ..................................................................................2-2 CAUTION ........................................... .... .......... .................... .................... .... .... ........ ........... 2-2 Sensor W iring ............... .'....................... .............. ...... ................................. ........ .... .......... .... 2-2 CAUTION ........... ............................................ .... .................................... ...... ...... ........ .... ..... 2-2 Figure 2-1. W irin g Terminal Blocks ... ........................................................... ......... ...... .................. ......... 2-3 Wiring the ContrOl Unit to the Main Power ......................................................................... 2-4 CAUTION ................................................................................. .............. ...................... ....... 2-4 CAUTION ............................................. .............................................. .... .......... ............ ....... 2-4 Table 2-1. Sensor ICon trol U nit Wiring........................... .... ...................... ........... ...............~............ ...... 2-4 Wirin g Relay Board ................................... ..................................................... ...... ...... .......... 2-5 Figure 2-2. Relay Board ..........................~...................... .............................. .......................... .................. 2-5 I L I I I I I I I " 1..1 I I I I I I t I I Section 3 Start- Up and Initial Adjustments .................................................. 3-1 Initial Power-Up II ..... II II II ,", II ...... .......... II .................... ................ ........................................ .... 3-1 Figure 3-1. Con tr'ols and Indicators 1,.,1 II .... .... .......... II II ............................ ...................... ................ .......... 3-1 Initial Adj ustmen t 1,.,1.. II II II II II.. II............ II II II II II.. ...... II II II... II 1,.,1 II II II.. II II II II II II II II II II II.. II II II II ..... 3-2 Section 4 Calibration and Maintenance ........................................................ 4-1 Calibrntion ..... II II II .... II ...... .... II ........ ...... II .... .... ...................... ...... ................ II ......................... 4-1 W ARN'ING .. ............... .... .............. ...... .... .......................... ........ ............ ............................... 4-1 CAUTION ............................................................................................................................ 4-1 Main tenance ........................... .............. ........ ...... ....... ........... ............ ...... ................ .......... ..... 4-1 Sensor Replacement .. ............... .................... ...... ...... ........ ................................ ............ ........ 4-1 CAUTION ... .................. ................ ....................................................................................... 4-2 General Alarm Guidelines .. ........ ... ............ ........ ........ ........ ........ ....... .......... ........ ............ ...... 4-2 Trou b les hootin g G uideI i nes ........... .................... .................. ................. ...................... .......... 4-3 Section 5 l>rinci p Ie of 0 pera tio n ....................,................................................ 5-1 Sensor Operation ..... ........ .............. .... .... ........ .... .......... ....... ...... ............ ........................ ........ 5-1 Liquid Sensor Operation ..... ............ .................. ...... ...... ........ ....... ............ .......... .......... ........ 5-1 Circuit Deseri ption ... .............................. .... ...... .................... .............. ........ ........ ...... ........ .... 5-1 Figure 5-1. Block Diagram .. ....... ........ ...................... ........ ............ ......... ........ ............ ............ ...... ............ 5-1 Section 6 Pa rts List ................ .... .........._........ .......... ........................ .... .... .......... 6-1 Appendix A . TANKGARD Installation Applications ......................................... A-I Control Unit Installation .. ............... .......... ........................ ............................... .... ...... .......... A-I Figure A-I. T ANKGARD Dimensional Outline Diagram ....................................................................... A-I CAUTION ................................................. ...... .............. ........ ............ ........ ........................... A- 2 S ingle- Wall Tank_ Instlllation .. ............. ..'.. .............. .... .......... ............ ................... .... ...... ...... A-2 General Description ....................... ........ ................ ............ ........ ...... ...... ...... .........;. .............. A-2 Figure A-2. Single Wall Tanks, Typical Sensor Well Placement and Layout .............................. ............A-2 Figure A-3. Single Wall Tank, Typical Monitoring Well Cross Section ................................................. A-) I , I i.,.I , \1 I I I ¡I I I I~ I I I I I I I u I II Installation PI-ocedure ......... ................ ............................ .... ............... ...... .... .... ............ ........ A4 Double- Wall Tank Installation (Mini-Sensor Application) .................................................. A-4 General De scrip tion ....................... ........... ..........1.....1...... .......1.................... .... ........ .... .... .... A4 Figure A-4. Double Wall Tanks. Typical Sensor Layout ......................................................................... A-4 Figure A-5. D'ouble Wall Tank Application ............................................................................................. A-5 Installation Procedure I.......... .....1................ .............. .... .... .... ... .... .... .......... ........ ........ .... .... .... A-6 I I~ I I I I I I I I~ I I I I I I l,w I I TANKGARcflLeak Detection System Section " General Information Section 1, General Information General Specifications .. ...', ...... ..... ............ ¡¡!!:~8~TsEf~íî7=il:::: .1!!:,:!!W~~tr~.¡:::,!':: ....'.. 'I T5..'...... ........". .-........ .......... . ......... ..... .. .......... i¡~~i¡ :':';':':';"';':':';:':':':':':':':';':':'::'"':';';';',':.:.:.:.:.:.:.;.:. ...... ................................................. , , . ". ..-. ..... -. ...... ... . '. . - -.." -.'....... OPTIONAL:/::: ;:\i\,LIOUID.:::::(rr ':'::::::::'}:SENSOR';:::':"'':::: ::;;¡ii:::;:;i:(:iDATA:::;!:::::::::::!: ;\;~~~~~~t~\~¡I~1~1j~t~~~t~f~~I~U\\~t~~\%\\\\\\\1\I\~\ :;:::::;:;:;:;:;:;:;:;:::::;:;'::;:;:;:;:;:;:::;:;:::;:;:::;:;:;:;:;:;:::;:;'; ',:.;.:.:.;.:.;.;.;.:.;.;.;.:.;.;.:.;.;.;.;.:.:.:.;.:.:.:.:.:.:.:.:.:.:.:.:.:. .:.:.:.:.:.:.:.:.:.:.:-:.:...;.:.:.;.:.;.:.:.:.:-:.:.:.:.:.:.:.:.:.:.;.:.;:.: 1':",:I":::I::;;::-'.I:;':I:::,:',j;:j:I:':',;::',:I::·::::::~'.,::::':' :~:~:~:~;}~:)?::~:;;~:!:~:~;}::~:?~:!:~:;:~:~:; ;'::;:;::::;;:::;:;::::::::;::::;:;:;.;:;::;;:;:;:::;:;-:....:.:.:.;.:.;.:... 3~tf}j;¡tdrj(r~(f{f{)~ttt ;:}~;!:f~:r;:~;~;~:~:~:j;~:~:~;~:~:::~;}f};{{;r~:~: :';:;:;::';':':';';';':';';';':';::::';::::':':':':::':.:.:.:.:.:.:.::::;.:.: :;;::;:;;;:::;:::;:::::::;;:;;:;;;;:;;;::::::::::::::::;:::;:::;:::;;;:::::;:: tfm;r\)t}fff¡ft~)rrrf\ '.:.:.;.:.:.:.;::.:.:.:.:.:.;.;:'.:::.;.:.:::.:.:.:.';:.;.;.;;:;;;:;;.:.;.;.' . . . . .....".... ..........-... ......... 'X;::M1NIÄTÙFië:i", /VAPOR.'AN p:\ tUQIJIPSeN~(? ·:::::S9f1LPAYA:::? :.;.:.:.;.':.:::~~..................;..-.,: X?:::ALARM,\::\ ::{)){DE!"AY:):}:\? ............ ....--....-.-.-......... ......... .... ...... ........... ... ........... -. . '. ... ..... ....-. '::::Ii[:REL.AY)::::'Y::- ,,::!:;:::};,:B:9ßf,tP::\Y'¡: .. ...... .......-..... .... . - . . . . . . . . . . .. ... . .... .. ....... ..--... Performance Characteristics Hydrocarbon Vapors (Call MSA toll· free at 1-800-MSA-lNST to enSW'è that the specific vapor will respond) Storage -20· to 160·F Operating Voltage Current -5· to 122·F 115 or 220 volts AC, switch selectable 0.5 Amps SOO feet 3 feet 18 AWG Storage: -20' to 160·F: Operating: -5· to 122·F 12 volts at 120 Milliamps 2-1flN length: 3/4" width 500 feet 3 feet 18 AWG Storage: -20· to 160·F: Oper(J/ing: -S· to 122·P 12 VOILS at 20 Milliamps 15 feet Maximum Cable Length MinImum Cable L.ength Minimum Cable Gauge Temperature Limits Power Size Maximum Cable Length Minimum Cable Length MinImum Cable Gauge Temperature LimIts Power Max. Fresh Water SUbmersIon Size 2-lfl" length: 3/4" width Same as vapor and liquid data Vapor Sensor: 1-112" length S/8N width Liquid Sensor: 1-112" length IflM width 3 hoW's after receiving a continuous alarm condition -+ SIze -+ Contact RatIngs S Amps @ 277 VAC or 30 VDC or 120 VAC 1/4 HP@ 250 VAC: 240 VA @ 240 VAC: 1/10 HP @ 120 VAC 1-1 I I :1 '~ il il ,I ,I ,I :1 I IL.I !. I ' II I I I I II ..u I I I ,- I I \ SENS~ 2 I MONI TOR ING WELL I TANKGARcf1Leak Detection System General Description The TANKGARD® Leak Detection System is listed by Underwriters· Laboï.ltories. Inc. (UL) and the TANKGARD System sensors are "Intrinsi- cally Safe" for use Ú\ hazardous locations Class 1. Group C and D. Division 1 and 2. as defined by the National Electrical Code. The MSA ® T ANKGARD® Leak Detection System is designed to help minimize the damaging effects of uncontrolled releases of petroleum products from leaks or spills. This instrument maintains the water quality by helping to prevent gTOundwater contamination. The T ANKGARD System is able to detect leaks or spills before they can contaminate the groundwater. The System continuously detects and provides local SEHSOR I \ MONITORING WELL r- --I I "'-,---'" / , I UNDERCROUND TANK I I ' IREGULAH) / -------- I .,-----... I / , I UNDERGROUND TANK I , ¡UNLEADED) / -------- SENSOR :\ MONt TORING WELL / - - - - - - , I UNDERGROUND TAHK I , (PREMIUM) / --------- G---' \ SENSOR 4 MONI TORING WELL Section 1, General Information audio/visual indication of hydrocarbon vapor caused by leaks or spills in the ground near: ' . petroleum tanks · service stations · pipelines · fuel distribution sites. The T ANKGARD Leak Detection System sensors are designed to be placed in monitoring wells around the tanks or between the walls of double· wall tanks. but can also be located above ground to deteCt the presence of most peuoleum vapors. Proper installation and sensor placement is mandatory for effective operation. . FIGURE 1-2 shows a typical service station installation layout. GARAGE '-' TANKCARO PAHU. OffiCE PUMP STATIONS C- - -J PUMP STATIONS' l- - -) Figure J-2. Typical Service Slalion Installation '·3 \1 I I ,I ¡ I I I I I I I I I I I I I I I Section 1, General Information TANKGARoRLeak Detection System ~ 11~~J Both the sllWdard and the weatherproof versions of the . TANKGARD are General Purpose with key lock fronl door (FIGURE 1-1): nOl suiLablc for use in hazardous areas When used with the DeLCction Syslem, \.he sensor is inLrinsicaUy safe for use in Class I, Division 1 Group C & D Hazardous Areas (Refer lO lhe NaLional ElecLrical Code for definitions) ...................................... . .,.... . - . . . .. . -.. . . . . . . . . . - . . . ..- . ........ ",.. .,..,....... ..~~ifJ ...... ..............,...........,............,.........,.,....... AC KNOCKOUT MSA T ANKGARD™ L~AK VETECTIDN S'SlEH o o o PCW'CR TRDUBLC AL.ARM Ii KEY LOCK RELAY KNOCKOUT L.lsttll @ ,......... ..cø WttI:'1'D mIDI ....~ . ~ .....1.- ~IP .,......... .... .....-..' ..n ~ EJ~'::::~~tl. L.!i:¿'~:=:-- TEST BUTTON ual VoI'0U- UVUD K. tALL. IN TIIC [vt..T or, rr.~..c, ~/"" IU ""'" AL""- I ~ c........, .S " Tac)'/'~[I SENSOR KNOCKOUTS Figure J.J. TANKCAllD COlltrol VIIi! 1-2 , I ¡I Section 1, General Information TANKGARoRLeak Detection System II il il . FIGURE 1-3 shows a typical monitoring well sensor placement and double-wall tank installation. . Section 2. "Installation" provides more detailed instructions. 11 Use of the MSA TANKGARD System is one of many steps necessary to help protect the environment from petroleum pollution; . other steps include: · Proper training for all persons handling the product · Proper T ANKGARD System installation by qualified personnel · Proper placement and protection of petroleum tanks and pipelines · Routine inspection of the monitored area and system I I I I I I I I I I I I I I .-..-..-..-..-. , - .-..-..-..-....-. ...-..-..-..-..- .-..-..-..-..-.. · 0'_" -.. -. .-.. - ..- ..-.. -..-.. .-., - ..-.' -..-..-..-..- ,.-.. · ,. -.. -"- ..-.. -... -.. -.. - ..-- · _e' _.._.. _'0 -.. -..-.. - ..-.. .., -" -.. - ..- ..-.. - ,.-.. -..-. · Periodic check of the T ANKGARD System response. · An effective and accurate inventory control system · Periodic site assessment I.t¿ The TANKGARD Detection System sounds an alarm when it detects the presence of hydrocarbon vapors, or liquid if using the optional liquid sensor (see "OptiofI{Jl Acces- sories"). To detennine the proper response to a vapor alarm condition, carefully review the inventory control data and check the general conditions surrounding the alarnùng sensor. To detennine the proper response to a liquid alarm condition, survey the sensor placement and verify the presence of liquid; then. take the appropriate corrective action. eN' . _.. . . .. . . ._ . . _0 . . _. . . .. . . -. . ... . .--. . ..- .. - .. -... ..... -... -..-..-..-..-..-..-... . -..-..-..-..-..-..-. - .-..-..-..-..-..-... :: :... . . _ . . \llIUHG ..u.cnQt( :-: :..: :-: ~ -.. _... -.. -" -" -.. -... ., -.. - ..-..-..-.. -"-' - ..- ..-.. -..-.. - ..-... .. - ..- ..-..-..- ..-..-. - ..-., - ..-.,-..- ..-... . . - . . - . . ... . . - . . - . . - . . - . - ..-.. -..- ..-.. -..-... "-"-"-"-,,_"_'"-' -., - ...- ..- ...- ...- ..-.... .._ ..._ I' _...- ..-.. _",-, -., -.. -..-..-... -..-... ..- .,- ..-..-..-.. - ..-. ~ PAOC· . . - . . - . . - . . - . . - ..-..-..-..-..-..-..-. -..-..-..-..-..-..-... ..-.. -..-...- ..-.. -..-. GIUJ\.t-m \11\1 CR L.tvcL.: :. -- . . - . . - . . - . . - . . - . . - . . . ..-..-..-..-..-..-..-. -..-..-..-..-..-..-... . . _. I . _ . . _ . . - . . - . . - . . - . . . - . . - . . - y~. ~:..: :-: :..: ~ -..-..-..-..-..-..-... 4 lHOi PWDRATO CASIHG- . - . . - . . - . . - . . - . . - . . -. . . . .. -.. -oPÙti.AL:üoüiD-sóisõR:"::-: ~ .... ., - . . - . . - . . - . . - . . - . . - . - . . - . . - . . - . . - . . - . . -. . . . CAP: :-. :..: :-: '-: :-: :..: ~. :..: :-: :..: :-: ~ . . - . . - . . .- . . - . . - . . - . . - . . - ..-.. - ..-..- ..-..-.. -..-.. - ... .., -..-.. -.,-.. - ..-.' - ..-..- ..-. . -.. -.. -., -.. -.. -..-.. -" -..-... Figure 1-3. Double-Wall Tank and Typical Well1nstallation 1-4 I ~ I I I I 1 I I' 1.1 I I I I I 1 I,e, \LJ I I TANKGARrflLeak Detection System Section 1, General Information A proper program of inventory control, maintenance procedures and use of the T ANKGARD System can help maintain the environment and minimize any loss of petroleum producL Features Test Button Feature (FIGURE 1-1) The TANKGARD System ContrOl Unit is equipped with a TEST BUITON located on the front door, center lefL This feature is provided to ensure that the audible alarm and the front door POWER, TROUBLE and ALARM LEDs are functioning properly. WARNING Take appropriate safety measures when pressing the TEST BUTTON on a T ANKGARD unit since the relays and any equipment connected to the relays will also be activated. Delay Feature When the DELAY JUMPER (Section 3, FIGURE 3-1) is in me DELAY position. the T ANKGARD System requires a three-hour continuous alarm before the horn activates: this delay exists to prevent false alarms due to spills or similar non-leak conditions. · When the DELAY JUMPER is in the DELAY position and the horn is sounding. open the door and press the RESET SWITCH; this will silence the horn for three more hours. · When the DELAY JUMPER is in the NON-DELAY position. the horn will silence only if the alarm condition has been corrected and eliminated. Qptional Accessories · An optional Liquid Sensor can be used to detemúne if a liquid is covering the vapor sensor or if liquid has enteft~d through the outside wall of a double-wall tank. pipe or delivery system. No T ANKGARD System modifications are necessary to add a liquid sensor to the system. · A Miniature Vapor Sensor and a Miniature Liquid Sensor can be used in applications where the standard sensors will not fit. such as in small double-wall tanks or narrow wells. These smaller sensors perform the same as the standard sensors and can be added without any modifications. ' , · A weatherproof T ANKGARD can be used in applications where the control unit must be mounted outside or in other harsh environments. General Installation The TANKGARD Detection System vapor sensors are sensitive to most petroleum vapors. The sensors are intrinsically safe and do not require explosion-proof enclosures or special wiring conduits. The sensors must. however. be properly spliced if the sensors are placed deeper into the hole than the wiring pennits. The sensors must be wired to an acceptable. below grade wiring work box when wiring junctions are made. Mount the standard T ANKGARD control unit in an office or area that is protected from weather and machinery. The weatherproof version can be I1)ounted outside. For underground petroleum vapor detection. the sensors must be installed above the highest water level. Use of the 1-5 . . "~. I II I jl :1 :1 I I I I I I i I I I I I I I I I Section 1, General Information TANKGARdlLeak Detection System ~ optional liqùid sensor will alen the operator if the vapor sensor is submerged. CAUTION Make sure that the vapor sensors are not submerged in water; Submerged sensors are not damaged but can cause improper TANKGARD System monitoring. Always check for proper operation after submersion. Single-Wall Tank Installation Place the sensors as close as possible to the monitored tanks or area and to the level of the tanks or groundwater in order to obtain the fastest possible alam1 response to petroleum vapors. For typical. single-wall tank service station installation (FIGURE 1-2), place the vapor sensors around ù\e perimeter of the tank or 1-6 tanks to be monitored. It is not necessary to bore the sensor wells into the water table, but drill them deeper than the buried tanks and deep enough to permit an adequate cross section of the subterranean earth. . Optional Liquid Sensor Installation Place the optional liquid sensor beside the vapor sensor to ensure that the vapor sensor is not submerged in liquid. Double-Wall Tank Installation Place the sensors between the walls of the tank (fIGURE 1-3). . When using the Optional Liquid Sensor, it is possible to delennine if a leak is occurring from outside or inside the double-wall tank. See Section 2. "Double-Wall Tank Sensor Placement." " i I I TANKGARd'Leak Detection System Section 2, Installation ¡I II ;!~ I ¡I Section 2 i ¡I Installation I II I ¡I Mounting the 1. Drill the bore hole away from any surface Tankgard Control Unit spill area to prevent spilled products from ,I flowing into the hole and sounding the 1. Locate the standard T ANKGARD control alarm. i :1 Unit in a clean, dry location such as a ser- . A ground water survey may be vice station office area. The weatherproof performed for optimum sensor version can be mounted to the outside of a placemenL I building or by the pumps themselves. 2. Line the bore holes with an acceptable CAUTION perforated casing to prevent collapsing. I~ Make sure that the door of the MSA TANKGARD control unit is not blocked. 3. Fill the area between the walls of the bore A blocked control unit will obscure the . hole and casing with proper backfill front panel pilot and alarm lights. material to permit gas and water diffusion. I 2. Mount the T ANKGARD control unit to a 4. Wire the sensors. I wall via the four holes in the mounting . Additional wire (up to 500 feet) may be bracket attached to the back of the added as required by splicing it to the 'instrument by using 1/4-20 mounting wire provided. Follow all applicable I screws or bolts. codes when splicing and wiring the sensors. Use appropriate splicing materials and tools and keep track of , sensor and sensor wire identity to ensure Sensor Placement prope~ wiring at the T ANKGARD control unit. A below grade wiring work box can be used as a junction box for the I Single-Wall Tank splice. Follow all applicable codes. Sensor Placement ,; I (FIGURES 1-2 and 1-3) 5. Lower the sensors into respective monitoring wells along the perimeter of , The sealed liquid sensor is protected the tank or area to be monitored. I from particles such as dirt and requires no special orientation or modification. Any . Place the sensors in the monitoring well JJ combination of vapor and liquid sensors ,,' located as close as possible to the area to I may be used. be monitored and above the highest water table level. I 2-1 \1 Section 2, Installation TANKGARoRLeak Detection System III I ' · The sensors are intrinsically safe, 'IJ.., il eliminating the need for explosion-proof 2. Remove the tank cover and lower the I enclosures. sensors down between the walls of the desired tanks. ;1 6. Cover the monitoring wells. 3. Reposition the tank cover. ¡I CAUTION Failure to cover monitoring wells may CAUTION result in personal injury and/or monitor- Failure to cover tanks may result in per- tl ing well contamination. sonal injury amVor tank contamination. Double-Wall Tank Sensor Wiring ,I Sensor Placement It is recommended that both a liquid and (See FIGURE 2-1 and TABLE 2-1) :1 vapor sensor be used for a double-wall tank application (FIGURE 1-3). By using both 1. Run the wire from the sensors to the types of sensors, it is possible to tell if a control unit. I leak is originating from outside or inside the double-wall tank. A Liquid Sensor, · The holes of the TANKGARD control when placed at the bottom of a double-wall ,I tank, will detect any liquid. unit cas~ will accept ll2-inch conduit '¡~ fittings. . , I · If any petroleum product is detected CAUTION from inside the tank, both the liquid sensor and the vapor sensor will alann Keep intrinsically safe sensor wiring the control unit. separate from all other wiring. I . If any liquid is leaking from the outside · Follow all applicable codes when wiring of the tank, just the liquid sensor will alarm the control unit. the sensors. I · Keep track of sensor identity so that 1. Wire the sensors. proper channel wiring can be done at the I control unit. · The sensors are intrinsically safe, · Additional wire may be added as eliminating the need for explosion-proof required by splicing it to the wire I enclosures. provided. Follow all applicable codes. · Additional wire may be added as Use 'lppropriate splicing materials and tools. Keep track of the sensor wire I required by splicing it to the wire identity to ensure proper wiring at the provided. Follow all applicable codes T ANKGARD control unit. when splicing and wiring the sensors. I Use appropriate splicing materials and 2. Remove the KNOCKOUT holes from the tools and keep tr'lck of sensor and sensor I wire identity [0 ensure proper wiring at TANKGARD Control Unit II the TANKGARD control unit. (FIGURE 1-1). ~. I I I 2-2 'I -~ 1 J I i - I ! I I, I I IJ.I I i .1 I I I I, IJ¡) I: I " " TANKGARrflLeak Detection System Section 2, Installation 3. Insert the sensor wire through the conduit fitting. If wiring the weatherproof TAN KGARD, use sealed or weatherproof fining to ensure a weather-tight fit. Remove SENSOR WIRING TERMINAL BLOCKS (FIGURE 2-1) by gntsping the TERMINAL BLOCK front edge with a pair of insulated, long-nose pliers and gently pulling the block forward from its sockeL 4. NOTE: SENSOR WIRING TERMINAL BLOCKS are removable for ease of wiring. nil: : ~ J~ 1151 or [L[CTlIC SHOCl-fuSf' r 1/2A 25 V OA'H;(ß lIvI-OISCOlldtl PUll ¡ \uPf~' ' aLlQ ( 5rkIlCU (j 0, Z · -1-v-<..)- I ...... ... ~ ... -= I QI.ISA 480100 HEV. + .. Ita TI I J, III - E;J' C9() IC9 [) 011 CI- CI- 1i6) li1i.-- SW2 0&11 JI · i:=:J- n Ol~ I IC~ Ii)) -c:::J- ~- I ~ICU,' .. I .. n = -c::r. R.1 114 ~_ t'. -c:=r 1I~6 D26 It, -c:=r I I ' R~2 -c::J"4 a- ~ . II)) ~ ICJ II.. -c::r ¡¡.; i:::}- II ~I 11""""- I I o(::::J- -c=:r Ii 4 4 )O ~ 7' ~ .. HU . I<¡' ~ -L:::). <==J h' ,~~~~:-'"' ~. " I ~I 19CHD'~R6,z~.4 N IC4 I I ~ . )O I~ ' >. I ~. IIC2 ~. to ...!!..lL. I<H 112~ U ~ HH 1......J CD:: -c::J- _ H21 ='_1 1160 ~L (I R2~ I II RESISTORS rOR UNUSEO CHANNELS PLUG-IN SENSOR WIR ING TERMINAL BLOCKS Figure 2-J. Wiring Termi"al Blocks 2-3 I I I I I I I, I I I I I I I I I I I I ~ Section 2, Instal/ation TANKGARd'Leak Detection System Table 2-1. Sensor/Control Unit Wiring !ili,i!i¡:ii,,¡I!,¡;~;~:~:~,~~;,¡,¡i:¡;~;:~:¡i'i'I,¡:1ii¡iii:j,ji¡iilj',¡11,¡:i'ij~~::~;~;:,:;~~~,~:~;~;,!¡ii'Ij¡,'¡,!:¡:i¡¡i':ii¡i:"j!I!liii¡i'lil':,~~,~;~,";~:~;~:~;:II,¡!,ii,'iiil¡'¡¡'I'i:': WHITE POWER 1 SENSOR 1 liLACK GROUND 2 GREEN/RED· SIGNAl. 3 WHITE POWER 1 SENSOR 2 BLACK GROUND 2 GREEN/RED· SIGNAl. 3 WHITE POWER 1 SENSOR 3 BLACK GROUND 2 GREEN/RED· SIGNAL 3 WHITE POWER 1 SENSOR 4 BLACK GROUND 2 GREEN/RED-' SIGNAL 3 lIIi?l~Î]i."_li¡~irÎiil&.iii¡;. 5. Remove the resistor located at the SENSOR WIRING TERMINAl. BLOCKS (FIGURE 2-1). NOTE: The lOOK ohm, 1/8 watt resistor should remain on the unused channels to prevent the trouble light from turning ON. 6. Connect the three wires of the sensors to the control unit as shown in TABLE 2-1. 7. After sensor wiring is complete, re-insert TERMINAL BLOCKS back into their sock- ets (FIGURE 1-1). Wiring the Control Unit to the Main Power (See FIGURE 2-)) CAUTION When wiring the T ANKGARD' control unit, disconnect the main power to prevent bodily harm. 2-4 1. Remove the AC KNOCKOUT hole in the TANKGARD control unit (FIGURE 1-1). 2. Route the power wire so that it enters the control unit via the AC KNOCKOUT hole. The hole in the case will accept I/2-inch conduit fittings. If wiring the weather- proof version of the T ANKGARD, use sealed or weatherproof fittings. \ 3. Connect the wire to the non-removable MAIN POWER TERMINAL BLOCK labeled PI. 4. Wire the power as labeled on the printed circuit board (FIGURE 2-1). 5. Select the proper voltage (115 or 220 volts AC) via the SELECTOR SWITCH SW2 (FIGURE 2-1). CAUTION Improper selection of the primary power may cause damage to the unit. If unsure of the available power, contact your local power utility for clarification. Verify ~ --.. , :1 iil~ II , ' I I I I I I I~ ¡ I I II I I I I I i I TANKGARoRLeak Detection System Section 2, Installation selector switch is in proper position for the AC supply line. 1. Route 18 A WG through the RELAY KNOCKOUT in the control unit (FIGURE I-I). If wiring the weatherproof version of the T ANKGARD. use sealed or weatherproof fittings. 'I Wiring Relay Board (FIGURE 2-2) 2. Insen the wire into the block of the desired relay function. An ALARM RELAY and a TROUBLE RELAY are located on the relay board mounted on the control unit door. Each relay is a single pole. double throw relay. Relay connections are made via the TROUBLE CONNECfIONS and ALARM CON- NECTIONS as labeled on the relay board. · The relay functions are: nonnally open (NO) and nonnally closed (NC) with a single common for each relay. · The relays simultaneously activate when the front panel LEDsare lit TROUBLE CONNECTIONS ALARM CONNECTIONS KI ~3 ~6 D50 K2 o 002 P2 0 -c:::J- RI -r=r 5 o -c=l- R20 ~Ib D30 Db t::::::J Db TROUBLE: NC C NO NC C NO ALARM! Figure 2-2. Relay lloard 2-5 I , I, '~ \1 i ;1 I :1 ,I ,I I P i I I , I I - I I r' I , TANKGARcI'Leak Detection System Section 3, Start-Up and Initial Adjustments Section 3 Start-Up and Initial Adjustments Initial Power-Up (115 or 220 V AC) and moye DELAY JUMPER JI to the left (NON-DELAY) position (FIGURE 3-1). 1. Before turning ON the main power, ensure that the proper voltage is selected olr, r'l ~.J ~.J \...-.I WAf DELAY JUMPER IN DELAY POSITION YELLOW CHANNEL TROUBLE INDICA TORS RED CHANNEL ALARM INDICATORS ALARM LEVEL CONTROLS RESET SWITCH f9 £ OA"c;CR ICI liS. 01 rL!ClaIC SIIDcc-ruu LIIIO \ Sto.ol~1 PDWlK 5....~~' , IUl I l 5Ikll~l (j OD +~z 0.;)::; , ~ ~- ...¡ - , JJ II - I C911 let [) D2J CI- I It) ~- I Figllre 3-1. Controls and lndicators 3-1 , \1 " t I ' I I ¡I Section 3, Start-Up and Initial Adjustments TANKGARcf'Leak Detection System I~'i il ~, 2. Turn ON the main power which feeds the ; t T ANKGARD System; there is no power b. Turn the alarm controls counterclock- ¡ switch on the instrument. wise until the CHANNEL ALARM LED I ~I, . The GREEN POWER LED should turns OFF. The horn will silence immediately turn ON; if it does not, refer when the CHANNEL ALARM LED :1 to Section 5, "Troubleshooting turns OFF. Guidelines" for proper diagnostic steps. . An illuIIÙnated YEIl..OW TROUBLE . The T ANKGARD System may go into LED, with or without the horn I an alann state; this is a nonnal condition sounding, indicates amalfuncrlon. when power is first applied to the See SecLlon 5, "Troubleshooting Guidelines," for proper diagnostic sensors. If the alann is sounding, turn steps. the ALARM LEVEL CON'rnOLS I counterclockwise to turn OFF the alarm This alarm adjustment allows the (FIGURE 3-1). monitoring circuit to ignore background I interference and avoid false alanns. 3. Wait 15 IIÙnutes for the sensors to I NOTE: Additional adjustment may be warm up. I needed after several days to . The amber TROUBLE INDICATORS account for sensors "settling" into (FIGURE 3-1) should turn OFF after their new environment. - the wann up period. ~J . If any TROUBLE INDICA TORS remain When adjusting me T ANKGARD ON, check the sensor wiring. See System, make sure that no I Section 5, "Troubleshooting Guidelines" hydrocarbon vapors (from a potential for additional infonnation. leak) are present. Otherwise, the I T ANKGARD System alarm will be Initial Adjustment adjusted to a certain contaminate level and will not detect the con- I taminates present. If unsure if the 1. After a 3-hour wann up period, adjust tank is currently leaking, tempomrily ALARM LEVEL CON1ROLS (FIGURE 3-1) install sensors, and adjust the I so that the alann indicators just turn OFF T ANKGARD System in an uncon- for that particular channel. taminated area where no tank exists. I a. Turn ALARM LEVEL CONTROLS 2. Place DELAY JUMPER JI to the right (FIGURE 3-1) until the CHANNEL (DELAY ON) position. The initial ALARM LED lights on the printed adjusnnent procedure is now complete. I circuit board. (The horn will also sound when the CHANNEL ALARM LED turns ON if JUMPER is in the I left position.) I ( , I I I 3-2 . I I I ¡IJj \1 II - I I I , I ¡ .iI I I I I I I I I IJÞ I I TANKGARcflLeak Detection System Section 4, Calibration and Maintenance Section 4 Calibration and Maintenance Calibration 1. Move DELAY JUMPER Jl (See FIGURE 3-1) to the left (DELAY OFF) position. This will eliminate the delay circuitry. 2. Remove the monitoring well or tank cover and remove the sensor from the monitoring well or tank. WARNING Do not pennit smoking or open flames when performing the following step; otherwise an explosion m.lY occur. 3. Introduce petroleum vapors to the sensor by placing the sensor over a known source of hydrocarbon vapors. 4. Check the control unit for an alann condition. a. If an alann condition exists. re-install the sensor and the monitoring well or tank cover. · If no alann condition exists. see the "Troubleshooting Guideline~·." b. After the RED ALARM LED turns OFF. the horn will silence. 5. Repeat steps 1 through 4 for the remaining channels. 6. Re-install the sensor and replace the cover on the bore hole or tank. CAUTION Failure to cover the tanks may result in personal injury and/or tank contamination. 7. Perform the Section 3. "Initial Adjustment" procedure again to enable the earliest ahum possible. 8. Move the DELAY JUMPER Jl to the right (DELAY ON) position to activate the alarm delay circuitry. Calibration is now complete. Maintenance Sensor Replacement The TANKGARD System requires mini- mal maintenance other than periodic calibmtion. After extended use. however. the sensor may require replacement as indi- cated by a trouble signal and/or slow or no response during calibration. To replace a sensor. perform the following procedure: , .. 1. Disconnect the power from the T ANKGARD control unit. 4-1 f 'i :1 'ì I, 4, , Section 4, Calibration and Maintenance TANKGARrflLeak Detection System { j ¡I' i' ( ! \1 2. Make sure that there are no open flames; General Alarm Guidelines I' I then, remove the cap from the monitoring r ¡ well or tank and remove the sensor. When the TANKGARD System ¡ ¡I indicates an alarm, open Ù1e door and \ 3. Disconnect the sensor wiring at the check to see how many sensors are alarm- junction box or at a convenient splice and ing. Usually, the greater the number of the ,I properly discard the depleted sensor. alanns, the greater the severity of the condition. An alarm can be caused by many I · If the sensor is still under reasons other than a petroleum tank leak warranty, return it to: (i.e.: a surface spill leaking down to the MSA, Repair and Customer sensors, a natural gas pipeline leak: or raw I Service Department, Walden Road, sewage gas seeping to the sensors). Mars, PA 16046 for a replacement If a liquid sensor activates an alarm, verify sensor. I the liquid's presence and take appropriate I 4. Obtain the proper replacement sensor corrective action such as liquid drainage or I (liquid or vapor as marked) and connect raising the sensor to a position above the \ I I the replacement sensor wiring at the liquid. 1, junction box or a convenient splice. ! ¡ If a tank leak is suspected, review the J I 5. Position the replacement sensor in the inventory records for any discrepanCies. l monitoring well or tank at the same level Also check the tank installation area for I, , as the original sensor. any surface abnonnalities. A tank test, I ! I performed by qualified personnel, may be ¡ I' 6. Replace the cap on the monitoring well the best way to determine if a tank is . 1 or tank. leaking. The TANKGARD System will I' I continue to sound the alann as long as the CAUTION alarming condition exists. When the RESET I Failure to cover the tames may result in SWITCH is pressed (SWI), the horn will 1 \ personal injury and/or tank silence for three additional hours, as long as j ¡: contamination. the alarm condition exists. 1 I 7. Reconnect the power to the control unit NOTE: Take appropriate investigative and follow the Section 3, "!nirial measures when a horn sounds; do not I Adjustment" and Section 4, "Calibran'on" ignore the possibility of contamina- procedures. tion by an actual leak or spill by readjusting the sensitivity level in r I order to silence the horn. l f I I ~ \ ( I 1 I 4-2 .-- I I f I I I II I I IJ.¡ I I I I '1 J ,j; TANKGARtflLeak Detection System Section 4, Calibration and Maintenance Troubleshooting Guidelines ,',. !"SÔt:uti'ON\:':''m;'':(':;:::::\H::,\::::,'::i\ ;':;::'\'sVMPfbtJc:::r GREEN POWER LED DIM OR FAILS TO TURN ON 1) Input power interrupted 2) Bad connection between power cable and connector 3) LED is defective *1) Check for proper power *2) Check fuse 3) Replace LED 4) Make proper voltage selection ;..:.....:.;.:.;.;.:.:.......:.;.;. ::::.:::;::::;:::;:::;:::;:::;::::::::::::.r:::.:::::: ,.. .... ......:.::.:...:...::................ ..... RED ALARM LEO DOES NOT TURN OFF 2) Replace sensor 3) Replace printed circuit board .CAUTION: Exercise caution as potential shock hazard exists. 4-3 I I; I I I I I I I I I I I I I I I TANKGARcflLeak Detection System Section 5, Principle of Operation Section 5, Principle of Operation Sensor Operation T' he sensor is a solid state sensor , consisting of a heater and a sensitive semiconductor fihn. As petroleum vapors make contact with the sensor, absorption occurs on the semiconductor film, increasing sensor conductivity. This conduc- tivity change is converted to a voltage out- put which is logarithmically proponional to the amount of petroleum vapor present TROUBLE AMPLIfIeR , CLJI'IPARATOR CHANNQ. ONE Dr fwa BARRIER !:!quid Sensor Operation The liquid sensor is a solid state sensor consisting of a thennoconductive sens- ing element heated to a high temperature. As a liquid with thenna! characteristics dif- fering from air makes contact with the liq- uid sensor, the thermal change is convened to a voltage output which turns ON the alann. Circuit Description (FIGURE 5-}) CHANNEL TROUBI.£ UQIT PNn TR£lJDL.[ LIGHT ALARH AMPLlru:R , COHPARATDR PANEL ALARM UGHT Figure 5-J. Block Diagram 5-' , f-- :11 ! \1 ¡I il I II ;11 I ¡I :1 I ,I I I I I I II I I Section 5, Principle of Operation TANKGARcflLeak Detection System . \ ~, \ <- ~ ' The sensor heater is powered by the con- trol unit. A circuit at the sensor applies the proper voltage to the sensing element, regardless of the cable length from the control unit. The power and the signal pass through the barrier circuit which makes the sensors intrinsically safe. The first circuit, the alann amplifier and comparators circuit, determines if the signal 5-2 from the sensor is in an alann state. The trouble amplifier and compara~ors detect problems such as open or shoned lines between the sensor and the control unit. The signals from all four channels are com- bined through circuitry and displayed on the front panel. If the delay is ON, the signals will be displayed on the front panel after three hours of a continuous alarm condition. i I \ I~ \1 it il I :1 ;1 I I I 'r I I I I I I I ."J ~ I I TANKGARoRLeak Detection System . , Section 6, Parts Ust ! ¡ Section 6, Parts List ':;,:;:,:,ji:i':',::;,::,::::':",::::::,:,::::,:::::,:::\::::::;"::i\:\'::i:,,:,\"':C;ÔMPÒNENfìÂsŠÊMiiLY:,:\:'-:':""'::!!,::i:':;::':,:,o-,\:,:::::,"!,:,,:'::"'::' : .......,'. ........... ............- .."" ...-............".......... ". ............ .... .. :':':':.':"p" 'AT:: III C)::",:,:,:,:",:,::,:::,:,: , .. :::A ,:;;; , ;'::)},?): ..... .'.......... . -. . ... TANKGARD, with Relays and Wilhoul Sensors 48 1532 Vapor Sensor 4802 19 Liquid Sensor 48 1275 Miniature Vapor Sensor 482608 Miniature Liquid Sensor 482607 Weatherproof Enclosure 483525 Primed Circuit Assembly 480100 InsLTucLion Manual 480195 Relay Board 480785 Barrier 4 80783 Switch Assembly 489498 Cable Assembly 489499 6-' 1:1 11 II il TANKGARoRLeak Detection System t, :,j, ' Appendix A, TANKGARd'lnstallation Applications I~' ~\ I case unless a single 1-112 conduit is used; in this instance, the customer must drill a sensor entry hole in the lower right side of the case. Appendix A TANKGARD Installation Applications Iii I I I I I 'I I 1:1 :1 :1 ~,:,I I ¡ , i , I I ¡I il :1 I I I I -,I I I Control Unit InstalJation FIGURE A-I shows the physical dimen- sions of the TANKGARD control unit. The sensor entries are at the bottom of the I' ( 6! 4 WSA YAN~c;ARO'· 101...."'.......11.. 000 sJ 4 "" @ -Ct~ ct @ S1 4 -_"'110 :ï:l~~:¡,~'~ ~_..... ~ ,,_, ..,.. -.I" ._ &..-.... - ~/8' DIA.. 12 HOLE SJ £.AATlAl LEfT ')IDr Vlf'w 4 SENSOR ENTRIES ~/6' DIA,. (4 IIOLESI f 01/ 112' CONDU I T L * DRILL DR PUNCH HOLe fOR OPTIOHAL 1-1/2' CONDuIT (HTRY OH LOwrft al'H' Sloe Of CASE Figure A-I. TANKGARD Dime1lsional Outline Diagram t > .;;; ~r.. ~~;' [I' ,,'I (,11", ,~;:;~ J: " )< , (.. :r1 " i' r ~': I I (- .~~ t.; .' '. 'I :J. 1\ "~' . \,', :':,'. '/: ¡'::' " J " j':1 J'; ,. ',::1. , " '~'. .. A-1 '"';<- - ------------- '\1 ; ¡I' I II I :1 :1 I I I I I I i I I I I I I I I I Appendix A, T ANKGARoR Installation Applications TANKGARoRLeak Detection System ~..~;! .~;~ 1" .;~ I ,,' 1'/ . ,'j" ;' 1:1 ~. .t; CAUTION Remove printed circuit board before dril- ling the case; otherwise. chips may make contact with the electronics and cause electrical shoTts. Single-Wall Tank Installation General Description FIGURE A-2 shows a typical sensor well layout for a service station equipped with single-wall tanks. The sensors are strategically placed around the perimeter of the tanks. and the monitoring wells are located as close as possible to the tanks for optimum sensor response. .. The 110/220 POWER ENTRY is the top conduit knock-out on the left side of the control unit case. Access to the alarm and trouble relay contact is made via the lower conduit knock-out on the left side of the case. '0,; ;' I, r .J "",OR I \ f to""" , MONITORING SENSOR CABLES WELL _ ~I' CONOUIT r - - GARAGE I ....----.... I ~~IT , , I UNDERGROUND TANK I ,- ..... I ' IREGULAR) ./ I TAN^CARD -. - - - - ... P ANE:L ¡ø-I/Z' CONOUIT I I CABLE Of riCE ....----... J , , I I UNDERGROUND TANK I \ ~ to"'"'' , tUNL£'ADLD) ./ -----... I SENSOR C~BLES SENSOR 3 SENSOR 2 ~ONI TORING ...----.... I MONltOfllNG PUt.lP STATIONS W£LL , , WELL c- -J I UNDERGROUND TANK I - , (PREMIUM) ./ "'-I/Z' CONDUIT -------- 0-- ...J I CADLE \ SENSOR 4 PUMP S T A TlONS LiON I rOf/ING c- - -J WELL , " f ;1 "J' rc· " " \1: :¡, '\:" ¡F' (! . I I I Figure A-2. Single Wall Tanks, Typical Sensor Well Placement and Layout A-2 :,1 It II I ¡I il 1'1 I !I I 't !I I ! I I I. I II Il I I TANKGARcf'LeBk Detection System Appendix A, T ANKGARoRlnstallation Applications · . · . . · . . · . . . ....... ..... ....... .... ....... ..... ....... .... ....... ..... ....... .............. .............. ... .......... .' Route the 3-conductor cable from each sensor to the control unit. using the other monitoring wells as junction locations. Each sensor cable must be discretely wired into the T ANKGARD control unit. which should be mounted in a visible indoor area. FIGURE A-3 shows a typical monitoring well cross-section. The man-hole should be water-tight. and the monitoring well should 2· OR 4· DIA. THREADED CAP CONCRETE CABLE TO SENSOR . . " .' I , I · . . I · 1 · 1 · . ....1 POROUS BACK-f LL~·.·.·.·' ".', . . . . . '. .·...e I . . .. I ......... I ..... I VAPOR SENSOR OP TI ONAL LIOUID SENSOR MINIMUM 2 FEET BELOW THE BOTTOM OF THE TANK be at least 2 feet deeper than the bottom of the tanks to be monitored. Two (2) or 4-inch well casing can be used. and. in order to obtain an adequate sample area, the peñorated section should make up a large ponion of the well casing length. The bottom of the well casing should be equipped with a cap to prevent din from entering it. and porous material should be back-filled around the casing. 12' MANHOLE TO BE WATERTIGHT 'I EXISTING GRADE JUNCTION BOX (SENSOR CABLE SPLICESI 3/4" CONDUIT TO TANKGARD . . . . . ....... ,...... ....... ....... ....... · ,'. . . . . ....... ..... · . . . · . . · . . · . · . · . · . · . Figure A-3. Single Wall Tank, Typical Monitoring Well Cross Section A-3 I I III I 'I I I :1 I I I I I I I I I I I Appendix A, T ANKGAR~ Ins lalla lion Applica lions TANKGARaRLeak Detection System, ~ OFFICE -' COIlOUI T O~ ur CAGL( I OHf CAGLE ) COIj()¡¡C 'O~I ~[N UNSOtl NeQulNEO I It is recommended that, an optional liquid sensor, in addition to a vapor sensor, be used in a sensor well. The liquid sensor should be placed lower than the vapor sen- sor to indicate the accumulation of any liquid. The vapor sensor is not damaged by submersion in liquid; however, it will not function properly until it is removed from the liquid, or until the ground water level drops below the sensor level, and sufficient time is allowed for the sensor to dry. Installation Procedure 1. Detennine depth of each sensor installa- , tion and mark that length on sensor cable. 2. Check the sensor identification tag (located on the metal portion of the sensor) to detennine the sensor type (vapor or liquid); then, mark the end of the cable to identify the sensor type. 3. ' The sensor wires are long enough to reach a wiring junction box at the surface of most monitoring wells. However, if additional wire length is needed, mark ..-----.... /, - - - - - - " I UNDERGROUND TANK II ,IRECUl'-R) _ ACCESS TO ' - - - - - / ANNULAR SPACE Of I AUK each wire to identify the type of sensor associated with the wire inside each cable, and splice the appropriate wire to the sensors. Follow all applicable codes. 4. Lower the sensors in the well to the mark on the cable. The sensors should not touch the bottom of the sensor well. The vapor sensor should be placed approximately nùdway down the well. 5. Thread a cap on the top of the well casing to prevent water and other contaminants from entering the monitoring well. 6. Discretely wire sensors to the control unit. Double-Wall Tank InstaHation (Mini-Sensor A2Plication) General Descrlptfon FIGURE A-4 shows a typical sensor layout for a service station with double- GAR AGE TA...GIJID HNlL PUIoIP STATIONS c- - ..) IoIIHI-SENSORS PUWP S T A TlONS c- ... -J Figure A-4. Double Wall Tanks, Typical Sensor ~yout A-4 , I , ' I f' ,\ ~ , , ~' , ,', " " i; ! ~J :. ,. 1. " , I, " 'J: ¡'"I ,'" :~ ,:; " '" ~i'! ::~ ~ ,,' ~{: I l ¡I \1 I il il i ;1 :1 :1 ¡ I" ;1 ,I I I I I I r I TANKGARcf'Leak Detection System Appendix A, TANKGARcf'lnstallationApplications wall tanks. In this application. the sensors are lowered 'into the annular space between the double walls of the tanks. The man-hole should be water~tight. The wires are routed as shown in FIGURE A-4. By observing which sensor is alanning. the user is able to determine which wall of the tank has failed: I 1 I I I I ' Two sensors are recommended in the double-wall tank application: a liquid sensor and a vapor sensor (FIGURE A-S). 1) If the outside wall of the tank devèlops a leak. water enters the annular space of the tank, and the liquid sensor alarms. MANHOLE TO BE WATERTIGHT GROUND LEVEL JUNCTION BOX (SPLICES) CONCRETE CONDUIT TO T ANKGARO , , MINI-VAPOR SENSOR PIN Q8260a MINI-LlOUID SENSOR PIN Q82607 Figure A-S. Double Wall Tank Application A-5 ¡I ill I I¡I ¡I il I \1 ¡I :1 I :1 ! ,I \ I I I i I - , I I i I I I Appendix A, TANKGARoRlnstallation Applications TANKGARcflLeak Detection System . 2) If the inside wall develops a leak, gasoline or any other contents of the tank will enter the annular space of the tank, and both the vapor and the liquid sensors will alarm. Installation Procedure 1. Mark the end of the cable to identify the sensor type. 2. The sensor wires are long enough to reach a wiring junction box at the surface of most double-wall tanks. However, if additional wire length is needed, mark each wire to identify the type of sensor associated with the wire inside each cable, A-6 and splice the appropriate wire to the sensors. Follow all applicable codes. 3. Lower the liquid sensor into the annular space of the tank until it reaches the bottom of the tank. 4. Lower the vapor sensor into the annular space of the tank, and place it mid-way around the circumference of the tank. 5. Ensure that no water or other contaminants enter the space between the walls of the tank, since this may cause one of the sensors to alarm the control uniL 6. Discretely wire the sensors to the control unit. " I , f~", i y< 1", 1\,;" .~ '" 'Vi .ú;'::,::, ,~.;: rI:X< 1;"~' ·tii.: ?,r, ~~~t .. ':~ : .... . . ~. "f· ;I~ : :1::;, ::~:~. ';~r:r . ., : ~ ..:1 .',j; Of}' " . , , ,t'. " ,,' ',' , , !, . " ',:f' t:t:' l'_' '\. 'I'· , :;:' ::.¡ r ,¡, {~è: ~~:ï ~r:; 'j,' ~ ..!~. ii r: ", ,~ I,~ ~ ~ .,:\, 'l .:. .~!¡. h; , '1~'~ ,1 ~~!~':. ,~~.~ , Ii ,; .~'; 1¡" i' ¡, t /" L " 'I \1 \1 il i ¡I I i:1 I I \ I I i I I I I I I I I I I I I - ~ I .. ! . . I I ~ . : i , ,Manufactured by ~ MINE SAFETY APPLIANCES COMPANY ~ PITTSBURGH. PENNSYLVANIA, U.S.A. 15230 - - - «I ,I r '" II II I I II MSA TANKGARD WARRANTY I I I I I , I I II I ' II I I I I ' I ,I I, ¡I I I \... ~ I MAY 13 '93 12:48 FROM MINE SAFETY INST PAGE.eøl/Gøl I II II il il II ;1 II 'ii II 'I , !I i il il I ,I I I I TO 181353222659 œ-1~~ ~1ine Safety AppIia1'1ces Company . lost~ment Division· P.O. Sox 427 . Pittsburgh, PA 15230 Tel~phone: (412) i'i6.8600 \\ lITERS DIRECT DlA~ ~o HSA TANRGARD WARRANTY MSA warrants that the tANXGARD or TANXGARD VIII control moãule'is free from mechanical defects or faulty workmanship for a period of one ye~r from date of installation or eighteen months from date of shipment, whichever comes first, with proof of purchase. MSA warrants that any of the TANXGARD sensors, either liquid or vapor, are free from mechanical detects or faulty workmansbip for a period of two years from date of purchase, with proot of purchase. The warranty tor either the control module or the sensors mentioned above will be honored provided these items have been installed and maintained in accordance with MSA's instructions and/or recommendations contained in the instruction book delivered with the equipment. Those items which after examination by MSA are proven to be defective, will at KSA discretion be repaired or replaced without charqe F.O.Ð. MSA's Plant. Fu (I 3 t:)S ~L:S9 Fa~ It -- --0' ~_._,_._- .'.--.. lOCA.TIO:'\': Walden Road-Çranberry Th'p. . Mars, PA "16046 /