MAINTENANCE, CALIBRATION,AND OPERATION OF ISOKINETICSOURCE-SAMPLINGEQUIPMENT The and purpose operation of this of the Details of Isokinetic Testing Branch This interested which has sampling includes gas the velocity electrical controls and box. using the train has four nozzle, major an orifice (4) the A representation maintenance and calibration be followed in the shop cord, Construction Emission Protection presented Agency. as a guide and box sample to assist train preparation the is for a dry for gas which sample shown each tube which assembly, connects assembly, a pitot pump, box described pitobe assembly, a vacuum sampling in (1) the probe, meter which procedure laboratory glass meter, of the or is in by the Environmental components: (3) the umbilical described equipment. (2) the sampling; calibration, as performed and a heated sampling; maintenance, equipment Programs, satisfactorily in for the Equipment1 of Air used during of manometers, meter been to explain -sampling source Office probe system glassware; is Source-Sampling personnel The ing isokinetic of the procedure publication in of the each box Figure for consists of a meter, and contains the with the 1. The components sampling monitor- test. should MAINTENANCE PITOBEASSEMBLY Preliminary Disassembly To disassemble 7) except for the removed in the the pitobe, welded field nut and first (8) as shown carried the remove in Figure separately. Figure 2. Swagelok* 2. The Check Pitobe union for nozzle (parts 2 through (1) is broken glass usually chips. assembly. Probe Remove broken or the glass fractured is within l-1 rear. Some fractures rubber stopper for shorts tion or tape variable tions burned spots and check in the *Mention by the plug the way shown touch the variable and front end are of checking the cord set over hard to see entire or rating for twist Then Shorts are product Agency. name does 3 glass probe probe the for the (11) The and visible cord probe If the and for loose by partial constitute and insula- power minutes. indicated not sec- from tape 55 volts. voltage wire. fractured high-temperature plug in a few proper for of the the of the at about length or because of the (15). visually 3 inches system darkening check of broken approximately electrical transformer Nichrome area is to gently power its (9) and and connection the company Protection sheath common by uniform power to the (15) back the most the Inspect and of a specific Environmental from One sounds. warm heat, inches (14). from The on the transformer become not /2 grating (ll), (10) sections. tions listen probe into a should probe does connecheating endorsement in the rear portion ohmmeter of the or probe grease from the water, then the Breaks a battery-light If the acetone probe. and order, Nichrome proceed Clean deionized allow procedure good joint. distilled, the wire can be checked with an system. is in ball in it to dry the with probe cleaning internally water followed air, Inspect in the the process. Wipe by brushing, by acetone. visually first Rinse for the the using probe cleanliness tap with and repeat if necessary. Pitot-Probe Sheath Remove A drop quick connects of penetrating Use should oil compressed be wiped openings the the for tube helps air according in the with good water tube (16) working tube. and and, procedure pitot pitot misalignment, to the the them out clean and from keep to blow or washed damage (17) the dried. in the Calibration (5), nut (2), ferrules pitot them tube Inspect if necessary, given wipe clean. condition. Both air and and the repair pitot and section sheath tube recalibrate of this report. Swagelok Union Clean O-ring the stainless (6) by acetone; steel scrubbing. air union Rinse with distilled, (3, 4, 7), deionized water, and and rubber then with dry. Assembly After except the the stopper about flush in use or, if the nut from the front. Cover contamination. onto front the open probe ends sheath. and cord can welded of the should assemble the sheath, The front welded union of 500° not inspected, into of the Swagelok of a wrench the the the excess (8) was and probe end Asbestos on backwards. The the against Replace temperatures 4 the pushing cleaned Insert properly with stopper. tight. are nozzle. seats (5) from is parts chipping cause cracks probe with with within serum that the union sheath, caps that the cracks or similar the the rear O-ring l/2 rubber should prevents rubber ferrule about (7) stack be only inch be union when (5) should first the probe or unseating for the component glass This sure The the sure (8). substituted expected. pitobe of the end making F are square nut the (2-7), be making end union the finger of the probe 1-l inches covers /2 to avoid A sample of pitobes check of the list is desired shown length for in Figure each There 3. sample box Date should with each Probe No. be at least pitobe two sets identified. Probe Glass probe Rubber stopper Insulation Power tape cord Heating extension system Clean Pitot-probe sheath Quick connects Pitot tube Sheath and welded nut Clean Calibration Swagelok (pitot tube) union Probe side Rear ss ferrule Rubber (backwards) O-ring Asbestos cord Union Nozzle side Front Rear ss ferrule ss ferrule Clean General Note: 25-foot Initial each remarks: Nichrome item when wire on particulate checked Figure 3. and write Suggested probes. in pitobe any remarks. assembly check list 5 NOZZLES Inspect the recalibrate the the nozzle acetone; by air dry. or There l/16 separate and nozzle to the rinse the damage on the knife with If damaged, in the Calibration deionized water, serum caps or repair and section. and similar Clean then covers with to avoid edge. of nozzles two shank damage. procedure ends be a selection with for with’distilled, open to the increments be etched of the according Cover should -inch should nozzle edge scrubbing contamination in knife or ranging three of each sets of the from of each nozzles and l/8 to l/2 size. all The the inch in diameter exact nozzles diameters kept in a box. METERBOX ASSEMBLY Casing Remove sary the meter box casing, check the general condition, and make neces- repairs. Pump Oil and Filter Change pump filter the pump (27). The lubricating parts oil are (28), identified if in dirty; Figure fill to mark; and clean 4. (27) PUMP FILTER (8) VACUUM GAUGE (24) ORIFICE \ AIR TIGHT PUMP (5) DRY TES.T METER Figure 6 4. Pump-meter assembly. the Thermometers Check against the room dry-gas-meter thermometers temperature using The (25). -in-glass a mercury temperature should thermometer as the check standard. Quick Connects keep Wipe the quick them in good (31 FILL connects working (9) clean (Figure A drop 5). of penetrating helps condition. PLUG SCRE (41 VALVE oil / 111 DUAL MANOMETER SWITCH (51 DRY GAS METER 16, FINE ADJUST 171 COARSE ADJUST bP 1231 DRAIN (221 i8i 191 MANOMETER 1101 SAMPLE ,111 VACUUM QUICK PORT QUICK AMF’HENOL GAUG-’ CONNECT 1 SCREWS PLUNGER -tZli PUMP SWITCH -1201 PROBE -t19\ HEAT SWITCli .(I81 FAN SWITCH AND LIGHT -1171 VARIABLE TRANSFORMER CONTROL SWITCH AND LIGHT AND LIGHT AND LIGHT CONNEC CONNEC 1151 TIMER 1121 141 POWER SYSTE CORO ill0 Vi (16) 1131 TIMER INDICATOR/ LIGHT Figure 5. Front panel of meter box. LEVELING SCREW Dual Manometer Visually fluid. check the pitot and orifice Check for leaks, (23) shown in Figure 5. necessary. Wipe the dual manometer compressed air screws the dual red the is used a similar device red manometer for the for sure connected, be filled meter is can level with the fluid zeroed, that is faded. and manometer fluid-level the the for check screw plunger and drain O-rings, if be cleaned and wiped fluids the If manufacturer. are orifice with clean. by the of color-coded: manometer (or field. ports the box be free can Manometer yellow in and back or as recommended manometer by removing the clean of reading the from should (22) plunger The be removed if it They plunger fluid-level (1) clean. manometer ease lines. fluid-level the dirty, tube the Replace fluid, pitot making can around is unusually combination) After lines or the manometer Replace especially manometer (2) are open fluid level. the (3) on the should have left about and the The side. l/4- manometer manometer When to the mano- l/2-inch travel inward. Pitot-Tube lines Blow The sealing ment through the balls in these The of air. pitot-tube quick quick pitot-tube connects connects should manometer should (9) to check for be removed to allow obstructions. for free move- respond. Solenoid Valve light Plug the (12) should solenoid does and not meter-box go on and valves moving occur, check solenoid The power valve switch which contains and one is valves close and the flow opens while to allow the pump shown three open 8 power (4), usually zeroed the into should a llO-volt The be heard. position shown source, in plug, The outlet. click Figure power 6. cord power is the If the and indicator sound of the clicking sound connections, bulb, valve. assembly, valve a click into the cord closed. the into the pressure is running. in Figure 5, 2-way solenoid When the manometer to equalize. valve operates the valves (Figure switch is is blocked This solenoid 6). turned and allows the the valve Two on, the closed manometer are two open solenoid to be TOPUMPSWITCH SOLENOIDVALVES NORMALLYOPEN NORMALLY CLOSED NORMALLY OPEN TOMANOMETER Figure pitot The solenoid tube manometer, on the meter assembly 6. Solenoid operates the pitot assembly only tube on the lines can diagram. orifice manometer. be disconnected To at the zero quick the connects box. Lights and Switches Turn the coarse-adjust adjust valve (6). heater light should not Turn check function, valve on all (7) to the switches not go on until for defective -off position (18 ‘through the fan parts, and 21) switch is including open to check also on. switches, fully the the fine- lights. If any lights, The of the lights fuses, and do wiring. Orifice Meter Lines Turn (4) and off carefully manometer the all adjust should solenoid switches except the or the pump to valve the pump switch coarse-adjust respond valves the orifice and fine-adjust controls. meter Turn (21). on the The valves. If no movement valve is switch orifice meter observed, check system. Timer Leaving when supply x time the pump or periods is a worn or on. on, check iMalfunction synchronous cycles, the but of the motor. the timer most system timer The commonly timer (15), can be caused has used which should by decreased different is operate 5 minutes. cams for Check only voltage various the 9 timing for at least end of the specified the notch two cycle. on the The cycles. The timer. Turn buzzer duration the pump and timer of the buzz light can (13) be should go on at the regulated by adjusting off. Amphenol Outlet and Variable Transformer leads Check the Amphenol to the different terminals the transformer, outlet voltage with a voltmeter (Figure 7). meter or check Figure 7. Meter quick connect or When light check light connected should box wiring by connecting across respond the the variable correspondingly. diagram. Vacuum System Insert Figure a plugged Make 5. Turn the The vacuum male sure that coarse-adjust pressure valve gauge gas find and meter metering the valves, switch read about leak and If leakage or Parts leaks. sample (4) is off and 27 inches Check a watch. the -on position of mercury. (5) and correct valve to the (8) should of 30 inches dry the into the and close port (lo), then activate fully the fine-adjust for a barometric of mercury leakage rate using exceeds 0. 02 cubic to check are the shown the the foot pump. valve. reading per pump, in on the minute, vacuum gauge, pipes. Calibration After shown in procedure all Figure 10 5 and in the A sample Figures systems 8 and are the functioning orifice Calibration check 9. For list meter calibrate properly, (24) shown in Figure the dry gas meter 4 according (5) to the section. and recording a calibration purposes, and calculation the meter sheet box should are shown be numbered in Dry Box No. Date Pump oil Quick and gas meter No. filter connects Dry-gas Dual meter thermometers manometer Pitot-tube system lines Solenoid valve---.- Lights and switches Orifice-meter lines Timer Amphenol outlet Variable transformer Vacuum system Metering valve Vacuum Leak gauge check Calibration inches at (orifice General remarks Initial each and item when of mercury - leakage = meter) checked Figure and write 8. Suggested in any remarks. meter box assembly check list. SAMPLE BOX ASSEMBLY Ice Bath Fill the ice bath (4) with water and check for leaks (Figure ll), plug into a IlO-volt 10). Electrical System Using and heater source, an Amphenol should a poor go on. connection, adapter Failure (Figure to operate a defective fan, may or be caused a defective source. by a faulty heating element. The fan electrical The 11 Date Box No. Barometric pressure, Rb =-in. Hg Dry gas meter I-10. TemDerature Orifice manometer setting, intHl;20 4.0 10 6.0 10 8.0 10 Average ii__ Calculations Y AH@ + 460) VW Pb (td AH - AH 0.5 vd(Rb 13.6 / 0.0737 ) 2.0 / 0.147 1 I 1 8.0 1 0.588 / y = Ratio of AH@ = Orifice inches wiring diagram accuracy the is shown in the thermostat the about can probe wet test meter differential in. H20. Suggested 20 to 30° Check of 9. thermometer fluctuate 12 + 460) I pressure of mercury, Figure but (tw 0.0368 1.0 dial + &) orifice in the heater and dry gas meter 12. Check section average be adjusted plug dry test meter. that gives 0.75 cfm Tolerance - f 0.15 Figure heated to after to the with it of calibration box. The a voltmeter at operation temperature stabilizes. setting air and calculation thermostat of the Tolerance The usual = + 0.01 70" F and 29.92 form. by inserting will setting a generally is 250° desired. or with a IlO-volt check light. F, (1) THERMOSTAT \ (2) AMPHENOL CONNECTOR _ (3) PROBE PLUG L Figure 10. Sample box. Figure A sample the box should ing the glassware ferably more, of several cleaned runs sets while have been check list is shown be numbered. for each depending increases the second 11. in At least meter box, on the number efficiency run is being Amphenol Figure two 13. sets should made Again, of the for required the test or the since trains recording sample-box be on hand of runs during adaptor. for purposes, assembly, a stack in a day. test The the sample can be cleaned train includand pre- availability can after be all completed. 13 110-V PLUG AMPHENOLCONNECTOR Figure 12. Amphenol wiring Box No. Date Ice diagram., bath Electrical system Heater Blower Probe receptacle Thermostat for Setting Temperature General remarks Initial each item average temperature variation-OF when checked of-OF ? OF and write in any remarks. . Figure 14 13. Suggested sample box check list. POLLUTANTCOLLECTOR Glass Parts Wipe (4), the glass grease connectors cleaning detergent. solution. Rinse Reassemble with the the (5), openings to avoid of the impingers distilled, parts deionized portions on the upper of the (1) and shown use water, using half cyclone (3), hard-to-clean impinger grease joints and For stopcock a thin taper in rlask Figure 14. dichromate and coat (Z), filter Wash sulfuric then acetone; (Figure with acid air glass cleaning dry. of acetone-insoluble joints holder silicone 15). Cover all exposed contamination. (4) Fl,LTER HOLDER HEATEDAREA - from -.-,-. i\ i (5) GLASS CONNECTORS I II i i i i I i i i ?Iil i i ./ // :’ -.-.-.-.-.-.-.-.-.-.-.-.m. T ICEBATH -.-.-.-.-.-.-.-.-.-*-.-.-.-.-.-. Figure 14. Sample box glassware A assembly. Glass Frit If the trated air HCl for If the dry. H2SO4 glass plus frit (7), 0. 5 hour. frit a few still drops shown in Figure Rinse with does not of sodium 16, distilled, appear clean, or potassium is dirty, place deionized boil nitrate. for water, 2 hours Rinse it in boiling, and in well then concenacetone; concentrated with distilled, 15 LUBRICATE INDICATED AREA (6) BAdK HALF / (1B) F:ONT HALF \ (9) RUBBER GASKET (7) GLASS FRIT Figure Figure deionized with water, new frits. Assemble shown the in pump 15. and the Glass filter holder acetone; air filter-holder filter Figure 17 (see on and adjust flow This assembly holder dry dry. gas is and components meter and on the orifice procedure shown in Figure for orifice should a pressure-drop meter manometer under to AH@. INLET Q 0 -g 0--I \ \ --z Figure N _ 17. UMBILICAL -----4 Glass frit pressure ‘\ ,’ drop check. be followed check Calibration). If the FILTER HOLDER VACUUMGAUGE also 16. METER BOX 16 assembly. Impinger. then The 16. vacuum as Turn gauge on the and meter box should reads higher be replaced than or is 2 inches dirty and of mercury, should the be cleaned and frit either checked is too fine again. Greenburg-Smith Impinger Orifice Fill drain the Greenburg-Smith through required the for orifice new impinger tube in 6 to 8 seconds, with it water. should If the water be replaced. does This is not only impingers. Filter-Holder Gasket Clean the filter-holder and then acetone; water, gasket air by washing. Rinse with distilled, connects clean deionized dry. UMBILICAL CORD Quick Connects Wipe A drop the vacuum of penetrating line oil and on each pitot line (l-2) helps keep (4). The quick them in good working (Figure 18). condition. Thermometer Check temperature the dial when thermometer a mercury-in-glass temperature thermometer Figure 18. Umbilical should is used check as the against room standard. cord. 17 Electrical lines Check light the system. electrical Make there is no continuity is the not lines sure in problem, (3) for that the any leads of the replace the continuity are lines, using an ohmmeter connected check the to the or proper Amphenol a battery- prongs. If connections. If this cord. Check Valve Disconnect the the joint at the check valve (5) and add a drop the inlet with of lubricating oil on valve. Vacuum and Pitot lines Test Connect noted, the vacuum the line check all cause is not using soapy the vacuum one and side. 18 leaks box by blocking and check for and then, if necessary, first identified, slightly leakage pressurize the plugged as before. the line ball joint. If leakage check the tubing. and check for is If the leaks end check of the Pull for If leakage pitot-tube line a vacuum leaks is to a 36-inch of at least by noting noted, the check 10 inches, mercury the U-tube seal mercury the manometer. tubing the same way manometer tubing at the Do the same as for the line. A sample umbilical meter connections device. end, other for water. a similar pump to the readily Connect or line cord check list is shown should be numbered. in Figure 19. For recording purposes, the for CALIBRATION NOZZLEDIAMETER Using 0. 001 and obtain the not inscribed the Make inch. should measure a micrometer, 10 separate average exceed inside diameter measurements or, inch. If the etch if new, The nozzle the of the using of the measurements. 0.002 value the value different largest is satisfactory, of the inside at the same nozzle to the diameters deviation each time the average from polish off diameter the on the nearest old outside of nozzle. PITOTTUBE Measure of a straight from for any the the run point range direction for legs each only in both for tube The S-type pitot the second a cross 2 diameters and the the pitot Make pitot tube be calibrated calibration. Determine upstream S-type should section tube twice, at least coefficient for as: those pitot tubes directions, this pitot during within and a standard direction. %) Use point downstream velocities. of the determinations each with of gas direction AP, (8 diameters of disturbance) the three pressure, of ductwork desired reversing velocity since in which the = o.99jbP-=T=$X the average nomograph used coefficient, with the Cp, sampling equals 0.85 train f 0. 02 is designed test meter is a Run the number. DRY 6AS METERAND ORIFICEMETER Connect the components as shown l-cubic-foot-per-revolution about the 15 minutes pump wetted. Calculate AW@. meter with to warm Then 7, the up and to permit the information gather the If an average orifice ratio of accuracy Y of 1.0 + 0.01 in with Figure f 1 percent manometer set the interior is not wet test obtained, 21 The wet accuracy. at about 0. 5 inch surface as requested of the 20. of the on the meter the data to the dry gas wet of water test sheet dry pump in test meter for to allow meter to be Figure 9. meter, and should be b 0 i:ll U-TUBE MANOMETER . . . . / \ -- WET TEST METER H’ Z-I- METER BOX Figure adjusted until the on top plate Since within of the the the should inches the specification. gas meter nomograph 0. 25 inch obtained, AH@ Y meets is not vary adjusting designed for of water opening should by more than If the of water. Calibration This and of 1. 84 inches orifice 20. can be the linkages. a AH@ is accomplished be adjusted k 0. 15 over by of 1. 84 inches or the the record orifice range a value in this range replaced. on the is In of operation AH@ removing of water, If a value desirable. is acceptable, AH@ setup. not addition, of 0. 5 to 8 front of the meter box. HEATINGPROBECALIBRATION If the Figure are 21 may not graphs can at about constructed cubic as outlined the per probe or a calibration by using various foot as outlined to determine be constructed at the 0.75 are be used constructed temperatures 22 probes variable minute. a heat in Reference heat setting of the source transformer and 1, the required. probes is measuring settings graphs while in If the required, the inlet passing probes similar and air outlet through FIELD OPERATION Preparing most the difficult site part so that the port is not to be a useful tool must use near for can Scaffolding of sampling. sample equipment a catwalk or sampling must other be positioned is frequently occasionally The structure. small-diameter be stacks. the erected duorail when has At many been sites the found the sampler distance from e his In the ingenuity selecting probe the to the ment was allow easier to get site, bottom designed the sampling sample into 2-l/2-inch and equipment sampler of the to fit entrance the should box is keep without approaches vary, sample in mind about nicking the Although been the port. that 13 inches. it has holes, removal to the found nozzle the that equip- 3-inch or picking holes up deposited dust. Because sampling isokinetic sampling assembly of the once the probe equipment components, is positioned will the description be confined and adjustment at the desired to the of the use flow sampling of the operation of the nomographs, rate of the to isokinetic conditions point. NOMO6RAPHS The (Figure correction 23) isokinetic To factor have been sampling determine is first designed rate the nomograph for (Figure use adjustments correction factor, moisture, 70 H20. with and 22) the for C, and sampling selection on the the operating train nomograph as aids for of a convenient nomograph, the rapid nozzle following size. information required: 1. Percent or 2. presurvey, Orifice calibration calibration 3. Meter (see section because An estimate the factor, temperature, temperature ence. or before This may sample AH@, be determined from a previous from the test run. This is determined laboratory on Calibration). T,. of the within Temperature pump 10” and at the can F (approximately 25 easily meter be rises estimated + 1 percent above with error) ambient experiis all REF 1 % HI0 0 I /--- ==STEP -- ’ EXAMPLE T, -50 j that is necessary perature 4. has Stack been Nomograph i 10 Ps/P, = 1.05 initial estimate This site is near the is measured exit of the To obtain correction factor, 1. Draw line from AH@ to 2. Draw line from point “A” to % H20 (REF 2). Draw line from point “B” to the calculated and to set the following 1. the nozzle select information C factor. Same stack, Pm. To F above size T, is obtained to the ambient sample atmospheric as atmospheric C (Figure is first This 25” before pressure, C. C. tem- used). P,. factor, factor of about Meter tion 5 C : LO for correction 5. 3. the (an pressure, sampling 22. : 100a~ % H*O FIND Figure 1.8 AH,a: run; or if the pressure is used. pressure. 22): obtain “A” point to obtain on reference point value K-factor “B” 1 (REF on reference P,/P, on the line to obtain operating 1). line 2 correc- nomograph, required: from the correction-factor nomograph (Figure 22). 2. 3. Stack traverse to within Average velocity nary 26 temperature, pitot traverse, T,. !L 25” pressure, using This is determined F before the aP. This the average sample in “F by a rough temperature run. is determined of minimum by a rough and maximum prelimiAP’s in CORRECTION FACTOR, PITOT c -2.0 ORIFICE READING, AP K FACTOR READING, AH REF REF A- STEP -, 0 -0 P Lo II -0 7 1 B --.. . . STEP 2 --*-..-., -..... . . .. 1. .-...._, STACK TEMPERATURE, TS SLIDING SCALE :UT ALONG LINES 84’ 1”. Hz0 : * dlme”s,onle! ..9= Figure inches 4. Exact 23. procedure select (Figure in selecting nozzle C : 1.0 size and setting K factor. of water. available available To Usa of the nomograph EXAMPLE nozzle sizes, D. This is obtained from calibration of nozzles. the nozzle size and to set the K-factor pivot point, use the following 23): 27 CORRECTION FACTOR. PITOT C LO ORIFICE K FACTOR READING, READING, AP 0 00, 1 , 5 REF A TIP 05 PROBE DIAMETER. D 2500 .‘ooo ,500 ,000 . . . 800 600.. 500 100 I 0 STEP 2 ,:~-A.. . . . . .._ ‘.. .. . ... . STACK TEMPERATURE, T S SLIDING SC*iE JT -- ALONG LINES EXAMPLE c : 1 0 Ts : 300 9 AP: 0 5 I”. H-j0 IJ : D In.. 0.375 In. Figure inches 4. Exact 23. procedure select (Figure in selecting nozzle size is obtained and setting K factor. of water. available available To Use of the nomograph nozzle This D. sizes, from calibration of nozzles. the nozzle size and to set the K-factor pivot point, use the following 23): 27 1. Set correction factor, C, 2. Align T, average AP, exact nozzle 3. Align T, with 4. Align the AP To factor with factor pivot obtain the pivot point size probe to the tip reference diameter mark, on D scale, “A. and ‘I select with size selected and reference mark, “B”, obtain a value on AH on the scale, and scale. AP set the K- the K- point. orifice meter has been the pitobe 2. Read the pitot 3. Align the AP 4. Obtain The nomograph use the nozzle for isokinetic following at the conditions procedure sampling after (Figure 24): pivot point point. AP. through the adjust K-factor metering assumes not AH, setting, set, tube AH and does scale to it. nozzle value Position T, note closest exact 1. 1. on sliding the change pivot valves. following more point. than once 25” the K-factor for T, < 1000” does not vary F or 50” for is T, set: > 1000“ F. 2. D is not changed 3. T, estimated 4. Percent 5. P, was H20 and Pm during the test. correctly remains and constant, remain within constant, within more than 10”. + 1.0%. + 1. 0%. SAMPLECOLLECTIONASSEMBLY Pitobe Assembly After selecting a suitable of the stainless union contains a stainless ring, and the 2). If the asbestos 28 that stack cord. steel union nozzle temperature probe on the steel side probe back has remove length, inserted a stainless is above Ensure sheath. ferrule 500” steel F, the replace cover that from the backwards front and the probe and back Viton the nozzle side side of the a Viton A O- ferrule A O-ring (Figure with PITOT&R;ADING, 0.001 K FACTOR 1 PROBE DIAMETER, D TIP STACK TEMPERATURE, TS UT Figure 24. Nomograph the cover from Remove nomograph), union. shank joint and insert Avoid and on the sampling the could the use cause glass probe is about the of wrenches glass covered to begin. LINE! operation nozzle the SI.IDING SCALE ALONG to obtain shank in the end probe as this probe until Mark desired of the selected sheath union, tvould to crack. the the orifice bind assembly probe of the with nozzle equipment heat-resistant (obtained finger ferrules the settings. nozzle and the Keep meter from tighten to the tip and is tape the the nozzle the ball complete or by 29 PITOTz;ADING, 0.001 K FACTOR 1 7 REF. A.- QVOT - ..:\ POINT --k \ 0 STACK TEMPERATURE, TS SLIDING SCALE ALONG UT -_3 AH i 4”. LINE H20 c : dlmenslcm* Ts nomograph), union. shank Nomograph the cover from . joint and insert Avoid and on the sampling AP 24. Remove the could the use cause glass probe is about 0 : I”. :oF Figure operation the nozzle of wrenches the glass covered to begin. EXAMPLE I AP AH : 0.6 = 1.2 EXAMPLE 2 AP AH : 0.6 : 1.53 K : dmlenslonless : I”. to obtain shank in the end probe as this probe until Mark H20 desired of the selected sheath union, would to crack. the the orifice bind assembly probe of the with nozzle equipment heat-resistant (obtained finger ferrules the settings. nozzle and the Keep meter from tighten to the tip and is tape the the nozzle the ball complete or by 29 some other method sampling the a temperature sensor should extends be with denote proper distance into the stack or duct for each point. Attach the to the beyond about gas probe 1 inch the from to the probe the metal tip pitot sheath and tube does and of the not sampling touch probe any nozzle probe metal. to so Its that position avoid interference filter number flow. Sample Box Assembly Place data the the sheet. tared filter Tighten rubber in the the clamps filter holder around the and filter record the holder to prevent on the leakage around gasket. Assemble the requirements collection of the reactive) on the system, test, using lower half box as a very of all shown light the in coat male ball Figure of 1 or silicone joints as dictated grease (Figure by (acetone the non- 15). LEAK TEST Place the meter and connect the vacuum the outlet joint of the stopper in adjust valve slowly until gauge reads flow on the meter and impingers to the check is exceeds leak turn forced the check and the must vacuum backward into the foot per found the plug filter and the and port box and the ball coarsevalve until the for minute from This Check fine-adjust meter test meter Turn gas the box. valve dry be from of the sample open pump. thz feet inlet fine-adjust remove the 200 leakage. position leaks first off of the 0. 02 cubic or to to the possible close complete, immediately being -off then meter the cord for Partially gas up impinger of mercury; dry from umbilical cyclone box pressure, the the opened. the When cyclone, to 10 inches gauge of the position Greenburg-Smith inlet fully a convenient line the through mercury last in vacuum flow. at If the 10 inches of corrected. the inlet prevents to the water from the cyclone. FINAL SAMPLINGTRAIN ASSEMBLY Remove half of the sure that probe 30 by the ball the joint rubber tightening cover from with silicone stopper the the probe is ball joint grease snug holding on the (Figure in the clamps. opening probe, 15), in lightly and the connect sample grease the the probe. box. Secure lower Make the Make able all necessary transformer obtained F or on the (use Figure at the desired meter box. on the before starting desired ice periodically last impinger meter box Allow test pitot-tube so that Turn the and the Set temperature. box the and 21 as a guide). the sample Fill electrical sample make line desired the box and periodic probe thermostat on the to heat and and for box at 250” probe at least adjustments vari- is sample blower, probe the temperature on the heater, checks Set connections. switches 15 minutes to assure the temperature. impinger during at less section of the testing to maintain than 70” sample box the with ice and temperature a little of the water. Add leaving the gas F. SAMPLERUN Record data all sheet in Figure coarse-adjust valve timer the cam first and valve The and limit the traverse adjustments recorded run impingers when open the fine-adjust cover from the nozzle tip read AP off the the the set point. such time, the nomograph AH on the shown as shown meter box the number at the top of the reading. Turn valve, and off the and place on the sample the pitot set the pitobe tube at mano- previously. first by adjusting the coarse- valve. consider to about rule of thumb 20 percent pressure hold. as that clock A good of traverse to follow of the drop across Generally the filter the filter length points and is to collect weight. and the of sampling a weight The upper amount time the of conat each 10 minutes. traverse except on the the when orifice regular AP the should sample made Besides fully plan can is 5 or pump box, meter fine-adjust by the the meter the set the gas from equal During dry Record matter point turning sary. then is usually densate initial on and at each of particulate the AH pump time including point. sample sampling data Remove determine the initial on the to zero. Turn adjust 25, sampling meter, . necessary changes time pitobe is moved changing meter interval by more ports. with the The aid point AP should of the recordings, than from a set to point without be monitored nomograph of readings when and neces- should be 20 percent. 31 SHUTDOWN When pitobe testing from and probe nozzle sample. probe the heat tip has stack, and switches as soon box and for cleanup the cover inlet the completed, take and the remove last the in from cyclone. impinger set enough probe to the turn a final as it is cool Disconnect and been the the vacuum of readings. probe from the to avoid cyclone inlet The the probe pump, Turn order Disconnect outlet. off off the sampling port. cover umbilical sample the heater, blower, Cover contamination and and remove or loss both cord box the end the of of the from the sample are then ready c and the analytical procedure. 33
