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Model 3430

2-1

CHAPTER 2

THEORY OF OPERATION

This chapter contains a brief description of the theory of operation
of the Model 3430 Surface Moisture-Density Gauge. The direct
transmission and backscatter modes of operation are illustrated
along with a brief explanation of the cesium-137 source, americium-
241:beryllium or californium-252 source, and detector geometry.

CONTENTS

Density ........................................................................................... 2-2

Moisture ......................................................................................... 2-5

O

P

E

RAT

IO

N

T

H

EO

R

Y

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Содержание 3430-M

Страница 1: ...430 and Model 3430 M Surface Moisture Density Gauge Troxler Electronic Laboratories Inc 3008 Cornwallis Rd P O Box 12057 Research Triangle Park NC 27709 Phone 1 877 TROXLER Outside the USA 1 919 549 8...

Страница 2: ...photocopying recording or information storage and retrieval systems for any purpose without the express written permission of Troxler Electronic Laboratories Inc Fantastic is a trademark of Dow Consum...

Страница 3: ...er it appears in this manual or on safety signs affixed to the machine this is to make all aware of the potential for personal injury and to be cautious when these images are present Always observe al...

Страница 4: ...e IL 60515 Fax 630 261 9341 Western Regional Branch Office 11300 Sanders Drive Suite 7 Rancho Cordova CA 95742 Fax 916 631 0541 Southwestern Branch Office 2016 East Randol Mill Road Suite 406 Arlingto...

Страница 5: ...ere are no user serviceable components inside Note that components behind the cover can have voltage potentials in excess of 50 volts during normal operation of the gauge Appendix A Radiation Theory a...

Страница 6: ...lations SI 1992 No 2372 by a UK appointed Competent Body namely Interference Technology International Limited 41 42 Shrivenham Hundred Business Park Shrivenham Swindon Wiltshire SN6 8TZ Certificate Nu...

Страница 7: ...follows CAUTION Indicates conditions or procedures that if not followed correctly may cause personal injury or equipment damage NOTE Indicates important information that must be read to ensure proper...

Страница 8: ...he Gauge On 3 6 Gauge Parameter Setup 3 7 Taking the Standard Count 3 10 Site Preparation Gauge Positioning 3 12 Taking a Measurement Soil Mode 3 15 Taking a Measurement Asphalt Mode 3 17 CHAPTER 4 AD...

Страница 9: ......

Страница 10: ...OUBLESHOOTING AND SERVICE Troubleshooting C 2 Battery Charging C 8 Mechanical Maintenance C 10 Leak Testing C 15 Replacement Parts C 16 Returning the Gauge for Service C 26 Troxler Service Centers C 2...

Страница 11: ...ons 3 4 3 3 Standard Count Position 3 11 3 4 Drill Rod Positioning 3 12 3 5 Marking the Test Area 3 13 3 6 Voids Illustration 3 16 A 1 Diagram of an Atom A 2 A 2 Variation of Radioactive Emission A 4...

Страница 12: ...ST OF TABLES Table Title Page 3 1 Model 3430 Keypad Functions 3 3 4 1 K Values for Thin Lift Overlays 4 13 A 1 Radiation Profile for Model 3430 Gauge A 9 A 2 Radiation Profile for Model 3430 M Gauge A...

Страница 13: ...code must be entered before these functions may be used For more information on using the access code refer to the specific function in Chapter 5 The ACCESS CODE for this gauge is 4678 This page shou...

Страница 14: ...xii NOTES...

Страница 15: ...ace Moisture Density Gauge and its applications Also included are a list of the gauge parts and accessories instructions for unpacking and inspecting the system and guidelines for site selections CONT...

Страница 16: ...oils and soil like materials Hydrogen water in the material slows neutrons emitted from an americium 241 beryllium source or californium 252 in the Model 3430 M Helium 3 detectors located in the gauge...

Страница 17: ...ed reading for all operators and potential operators If these sections are not completely understood users should seek assistance from Troxler an appointed Troxler representative or others designated...

Страница 18: ...gauge adjustment to compensate for sourcedecay 3 The Scraper Plate Drill Rod Guide is used to prepare the test site and aid in guiding the drill rod into the soil 4 The Drill Rod is used to prepare a...

Страница 19: ...Model 3430 1 5 Figure 1 1 Model 3430 Gauge and Accessories INTRODUCTION...

Страница 20: ...ther location or back to the factory save the box and any packing material For shipping instructions and regulations please see Appendix D Check to see if the following literature and components have...

Страница 21: ...nse The handle should be locked and the gauge stored in its transport case It is recommended that the gauge and transport case be storedat least 15 ft 5 m from work areas preferably in a locked closet...

Страница 22: ...1 8 NOTES...

Страница 23: ...ation of the Model 3430 Surface Moisture Density Gauge The direct transmission and backscatter modes of operation are illustrated along with a brief explanation of the cesium 137 source americium 241...

Страница 24: ...detectors in the gauge With the rod locked in the first notch below the SAFE position the source and detectors are in the same plane referred to as the backscatter position Photons emitted from the s...

Страница 25: ...Model 3430 2 3 Figure 2 1 Direct Transmission Geometry Figure 2 2 Backscatter Geometry OPERATION THEORY...

Страница 26: ...2 4 Figure 2 3 Backscatter Surface Density Effects Top Layer Effect Curves...

Страница 27: ...tains a helium 3 neutron detector that is sensitive to thermalized neutrons This detector is insensitive to non thermalized or fast neutrons and as a result the counts obtained are directly proportion...

Страница 28: ...2 6 Figure 2 4 Effect of Moisture on Depth of Measurement...

Страница 29: ...d density measurements are included CONTENTS The Keypad 3 2 Source Rod Positions 3 4 Daily Inspection 3 5 Turning the Gauge On 3 6 Gauge Parameter Setup 3 7 Setting Measurement Units 3 7 Setting the C...

Страница 30: ...s not heard when a key is pressed the keystroke was not recognized and should be repeated The ON YES and OFF NO keys are used for responses to specific questions displayed on the screen and to turn th...

Страница 31: ...splay up Scrolls the display down MA PR Allows entering or enabling of a Proctor or Marshall value 3 9 TIME Allows the operator to change the count time 3 8 STD Use to access the Standard Count mode 3...

Страница 32: ...4 SOURCE ROD POSITIONS Figure 3 2 shows the available positions of the source rod NOTE The source rod should always be in the SAFE position when the gauge is not in use Figure 3 2 Source Rod Position...

Страница 33: ...ring the gauge Refer to the Mechanical Maintenance section of Appendix C for instructions on cleaning the tungsten sliding block If a radiation survey instrument is available verify that the radioacti...

Страница 34: ...charging and gasket replacement To turn the gauge on press ON YES The gauge performs a test of its liquid crystal display LCD After the 300 second self test the gauge will enter the Ready mode In thi...

Страница 35: ...UNITS The 3430 gauge allows measurement results to be displayed in either metric or US units To set the measurement units first access the Special function menu by pressing SPECIAL Press the down arro...

Страница 36: ...ss START ENTER SETTING THE DEPTH To change the depth of measurement press DEPTH Use the up and down arrows to scroll through the available measurement depths When the desired depth is displayed press...

Страница 37: ...or value or vice versa use the arrow keys To activate the displayed value press OFF NO To change the displayed value press ON YES The first digit of the value will flash Use the arrow keys to scroll t...

Страница 38: ...a reference standard block for taking the standard count Place the reference standard block on a dry flat surface at least three meters 10 ft from any large vertical surface and at least ten meters 3...

Страница 39: ...four days of operation of a new or recalibrated gauge compare the daily standard count to the factory calibrated values After the first four days of operation or after taking four standard counts comp...

Страница 40: ...nce soil surface conditions are critical to accurate measurements locate a level site free from any large holes cracks or debris Smooth the surface by moving the scraper plate in a back and forth moti...

Страница 41: ...craper plate mark the test area using the drill rod as shown in Figure 3 5 Carefully pick up the scraper plate and place the gauge on the surface prepared by the plate Insert the source rod into the h...

Страница 42: ...er reading provides an accurate measurement of asphalt density Find a smooth level location on the asphalt The operator may want to fill the voids on open mixes with sand or cement Take care to leave...

Страница 43: ...pening is not completely closed by the sliding block the sliding block may require cleaning Refer to Appendix C for cleaning instructions Place the gauge over the test site Release the gauge handle an...

Страница 44: ...alue in kg m3 or pcf MOIST Percent moisture Air Void See description below Void Ratio See description below MOIST CR Moisture count ratio DENS CR Density count ratio M Count Moisture counts as read by...

Страница 45: ...ir voids only as a percentage of the total volume The following formulas are used to calculate the air voids and void ratio values AIR VOIDS 100 1 Vs Vt Vw Vt where Vs Volume of Soil Vt Total Volume V...

Страница 46: ...by the sliding block the sliding block may require cleaning Refer to Appendix C for cleaning instructions Place the gauge over the test site Release the gauge handle and push it into the backscatter...

Страница 47: ...pcf MOIST Percent moisture VOIDS 100 1 WD VOIDLESS 100 MA Value given by subtracting the percent Marshall value from 100 MOIST CR Moisture count ratio DENS CR Density count ratio M Count Moisture cou...

Страница 48: ...3 20 NOTES...

Страница 49: ...here the gauge may require an offset or special calibration This chapter also explains the procedure for using the gauge to measure thin layers of asphalt CONTENTS Offsets 4 2 Density Offset 4 3 Moist...

Страница 50: ...s Density offsets are common when the material being measured is outside the range of 70 to 170 pcf 1121 to 2723 kg m3 or if the material composition varies from average soil asphalt on which the fact...

Страница 51: ...fset function press ON YES Input the difference between the gauge and actual density readings To input a minus sign for a negative offset press the down arrow first To scroll through the numerals pres...

Страница 52: ...nt determined by a gauge reading To determine the offset factor use the following procedure Take a gauge reading at the site Record the reading MGAUGE Remove a sample from the measurement site then us...

Страница 53: ...n press ON YES The first digit will flash To input a minus sign for a negative offset press the down arrow first To scroll through the possible values for each digit press the arrow key To select the...

Страница 54: ...the same distance from the wall as the anticipated readings Do not take another standard count Set the count time to four minutes With the source rod in the SAFE standard count position take a four m...

Страница 55: ...can provide a procedure for recalculating the B value for manual entry see page 4 8 to accurately measure the soil density This calculation requires in depth knowledge of the gauge geometry and the d...

Страница 56: ...te the recalibration press OFF NO If entering a new known B value see the following explanation For gauge calculated special calibration see page 4 9 ENTERING A NEW B VALUE To change the value of the...

Страница 57: ...press START ENTER To scroll through the numerals for the depth of the measurement press the up and down keys To select the next field and or exit press START ENTER If calibration counts have not been...

Страница 58: ...alibration by entering the density press ON YES To change the value of a digit press the up and down arrows To select the next digit press START ENTER After the density value is entered the special ca...

Страница 59: ...layer density K Effect of top layer thickness on the gauge To use the above method of overlay measurement follow the procedure below Determine the density of the bottom layer underlying material DB A...

Страница 60: ...5 kg m3 142 0 135 0 38235 1 0 38235 DT 146 3 pcf or DT 2275 2162 0 38235 1 0 38235 DT 2345 kg m3 NOTE The majority of the backscattered gamma rays reaching the detectors are the result of interactions...

Страница 61: ...527 49 0 17850 50 0 17172 2 0 51 0 16495 52 0 15556 2 1 53 0 14617 54 0 14038 Thickness inches Thickness mm K 55 0 13459 2 2 56 0 12880 57 0 12078 2 3 58 0 11275 59 0 10781 60 0 10285 2 4 61 0 09790 6...

Страница 62: ...4 14 NOTES...

Страница 63: ...nsity Gauge or directs the reader to the appropriate section dealing with a particular function CONTENTS Recall 5 2 Offset 5 2 Stat Test 5 2 Drift Test 5 5 Special Calibration 5 7 Specific Gravity 5 7...

Страница 64: ...lity test or stat test may be performed to validate the normal operation of the gauge Erratic readings or readings that seem to fluctuate may indicate a problem with the gauge In the event the reading...

Страница 65: ...s START ENTER The gauge will display the stat test count progress as shown below Upon completion of the stat test the gauge displays the pass fail status If the stat test fails repeat the test twice m...

Страница 66: ...5 20 D xxxx M xxxx Use keys Moist R xxxx to view data Moist Avg xxxx to view data...

Страница 67: ...density or 1 for moisture the drift test fails NOTE The gauge should not be turned off between the stat test and drift test The stat test must be current In addition the gauge must not be moved betwee...

Страница 68: ...ve been completed the display is To view the stat test data use the up and down arrow keys 5 D xxxx M xxxx Use and keys D PASS M PASS to view data D Drift xxxx to view data Dens Avg xxxx to view data...

Страница 69: ...aterial into the gauge This value SG is used in the calculation of Air Voids and Void Ratio see Chapter 3 To access the Special functions press SPECIAL To access the Specific Gravity feature press the...

Страница 70: ...lculation To access the Special functions press SPECIAL To access the Voidless Density feature press the down arrow six times and press START ENTER To change the value of the flashing digit use the up...

Страница 71: ...Calibration Constants feature press the down arrow key eight times and press START ENTER This feature requires the input of the access code found in the front of this manual Using the up and down arr...

Страница 72: ...s and multiplied by 1000 before they are entered into the gauge A more direct method is to multiply the B and F values by 62 4298 then enter the resulting products into the gauge MEMORY RESET NOTE Thi...

Страница 73: ...this feature requires the input of the access code found in the front of this manual Using the up and down arrow keys to select the correct number for the flashing digit enter the access code To accep...

Страница 74: ...of the access code found in the front of this manual Using the up and down arrow keys to select the correct number for the flashing digit enter the access code To accept the flashing value and select...

Страница 75: ...heory along with a brief explanation of radiation statistics and radiation terminology CONTENTS Radiation Theory A 2 Atomic Structure A 2 Radiation Terminology A 3 Radiation Theory A 3 Radiation Stati...

Страница 76: ...ture The atom consists of protons neutrons and electrons Figure A 1 The protons and neutrons are grouped together in the nucleus The electrons orbit the nucleus An atom is normally electrically neutra...

Страница 77: ...n biological tissue the roentgen equivalent man rem or more appropriate for Troxler operators the millirem is used when measuring radiation dose The unit rem is derived by multiplying the radiation ab...

Страница 78: ...tribution predicts the probability that any given count rate will fall within a selected region about the mean Normal Distribution Figure A 2 Variation of Radioactive Emission Using the average of a l...

Страница 79: ...l charge and travel at the speed of light Photons are energetic and penetrating Dense materials such as lead tungsten and so on provide the best shielding against photon radiation Neutron radiation al...

Страница 80: ...around a radioactive source to a minimum If time is cut in half then exposure is cut in half provided all other factors remain constant Distance Distance is another effective means to reduce radiation...

Страница 81: ...be designated an authorized user To verify that occupational exposures do not exceed the regulatory limits authorized users may be monitored using personnel dosimeters The most common methods of perso...

Страница 82: ...del 3430 gauge Table A 2 shows the profile for the Model 3430 M gauge Each table lists the radiation dose equivalent rates in mrem hour for each side of the gauge and transport case shown in Figure A...

Страница 83: ...GE Front 10 0 0 7 10 7 5 0 0 7 5 7 1 2 0 45 1 6 0 25 0 25 Back 7 0 0 8 7 8 3 0 0 8 3 8 0 8 0 25 1 1 0 1 0 1 Left Side 0 3 0 1 1 4 0 25 0 1 0 35 0 1 0 1 0 2 Right Side 5 0 3 0 8 0 2 0 3 0 5 0 0 6 0 75...

Страница 84: ...m 18 0 16 0 34 0 0 7 3 0 3 7 0 2 0 4 0 6 TRANSPORT CASE WITH GAUGE Front 10 0 1 9 11 9 1 4 0 6 2 0 0 3 0 2 0 5 Back 6 0 1 5 7 5 1 2 0 3 1 5 0 2 0 2 Left Side 8 0 5 0 13 0 0 8 1 6 2 4 0 2 0 3 0 5 Right...

Страница 85: ...e americium 241 beryllium in the Model 3430 or californium 252 in the Model 3430 M is compressed and then welded inside stainless steel capsules The photon gamma source cesium 137 is sealed in a welde...

Страница 86: ...and or source Do not touch or move the gauge Immediately cordon off an area around the nuclear gauge and or source A radius of fifteen feet 5 m will be sufficient Do not leave the area unattended Keep...

Страница 87: ...from the gauge If you are unable to reach the RSO then call your regulatory agency name and number given at the beginning of this section Follow the instructions of the RSO The RSO should report the...

Страница 88: ...A 14 NOTES...

Страница 89: ...the Model 3430 and Model 3430 M Surface Moisture Density Gauges CONTENTS Measurement Specifications B 2 Density at 2000 kg m3 B 2 Moisture at 240 kg m3 B 2 Density at 125 pcf B 3 Moisture at 15 pcf B...

Страница 90: ...8 100 mm 25 min 1 min 4 min Precision kg m3 16 0 8 00 4 00 Composition error kg m3 40 0 40 0 40 0 Surface error kg m3 75 0 75 0 75 0 100 Void MOISTURE AT 240 KG M3 25 min 1 min 4 min Precision kg m3 1...

Страница 91: ...Composition error pcf 1 25 1 25 1 25 Surface error pcf 1 06 1 06 1 06 100 Void Backscatter 98 4 inches 25 min 1 min 4 min Precision pcf 1 00 0 50 0 25 Composition error pcf 2 50 2 50 2 50 Surface erro...

Страница 92: ...ium 241 beryllium Model 3430 M 2 22 10 MBq 60 10 Ci californium 252 Source Type Sealed Source Special Form Source Housing Stainless Steel Shielding Tungsten Lead and Cadmium Surface Dose Rate See Radi...

Страница 93: ...Power 15 watt hours Battery Recharge Time 14 to 16 hours Gauge Charging 12 V dc 500 mA minimum Requirements Liquid Crystal Display 2 line x 16 character alphanumeric Keypad 10 key sealed membrane Powe...

Страница 94: ...mm for 12 rod 19 25 in 489 mm for 8 rod Transportation Case 29 5 14 0 17 0 in 74 9 35 6 43 2 cm Weight 29 lb 13 kg Shipping Weight 86 lb 39 kg Operating Temperature Ambient 14 to 158 F 10 to 70 C Sur...

Страница 95: ...Troubleshooting C 2 Possible Malfunction Indicators C 6 Error Messages C 7 Battery Charging C 8 Alkaline Battery Use C 8 Mechanical Maintenance C 10 Inspecting the Source Rod C 10 Cleaning C 10 Sourc...

Страница 96: ...surface of the gauge base without extending the source rod A maximum reading of 10 20 mrem hr is normal and indicates the source is present However if the maximum reading is less than 1 mrem hr or if...

Страница 97: ...ee hours Remove any foreign objects from inside the gauge Ensure the hardware mounting screws are tight and in place Check count time a four minute count will give the highest precision with a repeata...

Страница 98: ...bility stat test record the results and contact the nearest Troxler Service Center GAUGE TURNS OFF AFTER IT IS TURNED ON The gauge automatically turns off after five hours if no keys are pressed Try t...

Страница 99: ...to ground The AC charger may be defective Check voltage output of charge with a voltmeter or use the DC charger to charge the batteries SATISFACTORY COUNTS BUT RESULTS ARE IN ERROR Ensure the measurem...

Страница 100: ...ay Test Fails Gauge Doesn t Turn Off Beeper Stops or is erratic Gauge Does Not Turn On When Charger Is Connected Preamp Board No Moisture or Density Counts Batteries Do Not Recharge Gauge Fails Tube T...

Страница 101: ...ERROR MESSAGES The following error messages are not user serviceable Contact Troxler Customer Service for more information KEY PAD TEST ERROR GM TUBE TEST ERROR HELIUM TUBE TEST ERROR DISPLAY TEST ERR...

Страница 102: ...batteries have a memory and repeated unnecessary recharging will shorten the battery life If possible run the batteries down before recharging NOTE Batteries should not be recharged unless the Batter...

Страница 103: ...es Do not remove the connector with the red jumper Loosen the battery pack screw closest to the baseboard This screw does not have to be completely removed in order to remove the pack To remove the ba...

Страница 104: ...he gauge base use a putty knife to scrape away any built up accumulations of soil or asphalt Be careful not to damage the gauge base After removing any large accumulations wipe the gauge base with a c...

Страница 105: ...ce a rag or cloth under the vent valve located below the grease fitting on the source rod tower NOTE The vent valve was not installed on earlier gauges Instead an Allen head screw was located beneath...

Страница 106: ...sliding block may require cleaning if the source rod becomes difficult to lower into the measure position or if a click is not heard when the source rod is raised to the SAFE position An improperly op...

Страница 107: ...d surface of the block Do not apply grease to any other surface on the sliding block or in the sliding block area Replace the wiper ring in the bottom plate Re install the bottom plate Do not over tig...

Страница 108: ...replacing To replace the control panel gasket loosen the four screws in the corners of the panel and remove the panel from the gauge topshell Use care in removing the panel and ribbon cable Gently pe...

Страница 109: ...e gauge model number and serial number onthe wipe disk Remove the control panel from the gauge topshell Locatethe yellow radiation label on the top surface of the base Place two drops of leak test sol...

Страница 110: ...t Depth Strip Hole 1 5 104149 3430 Battery Assembly w case 1 6 105298 High Voltage Cover Box 1 7 100989 Gasket Molded for Base Post 1 8 106068 3430 Topshell 1 9 105300 3430 Nameplate 1 10 104122 Radia...

Страница 111: ...Model 3430 C 17 Figure C 2 3430 Gauge Assembly MAINTENANCE...

Страница 112: ...11 012759 Seal Oil ID 5 8 ID 2 12 013200 Fitting 3 16 Grease w Serrated Shank 1 Alemite 1728B 13 001006 4090 Screw 5 16 18 x 3 8 Set Screw 3 14 101603 0510 3 32 Dia x 5 16 L Roll Pin 2 15 012789 Lubri...

Страница 113: ...Model 3430 C 19 Figure C 3 3430 Gauge Base Mechanical Assembly Figure C 4 3430 Source Rod Handle Assembly MAINTENANCE...

Страница 114: ...Preamplifier Mech Assembly 1 6 104136 Interface PC Board Bracket 1 7 000206 1400 Screw 4 40 x 3 8 PHMS Phil 2 8 104098 GM Tube Interface PC Board 1 9 100156 Geiger Mueller GM Tube 2 10 000001 1001 Wa...

Страница 115: ...Model 3430 C 21 Figure C 5 3430 Gauge Preamplifier Assembly MAINTENANCE...

Страница 116: ...el 3430 1 4 106369 Front Panel Gasket 1 5 105832 PCB Assembly 3430 CPU 1 6 105294 Washer 2 7 102888 Cable 3400B front panel to base 1 8 105295 Nut 1 9 106525 Assembly Metal Cap w lug 1 10 000001 0401...

Страница 117: ...Model 3430 C 23 Figure C 6 3430 Gauge Scaler Assembly MAINTENANCE...

Страница 118: ...ish Overlay 106852 0004 Kit 3430 Language Mod Chinese Mainland Overlay 106852 0005 Kit 3430 Language Mod Chinese Taiwan Overlay 107472 LCD Display 012751 Seal for Bearing T S 625 012754 Ring Scraper 0...

Страница 119: ...l Spanish 105305 0004 3430 Operator Manual Chinese Mainland 105305 0005 3430 Operator Manual Chinese Taiwan 100421 Drill Rod 102111 3400 Scraper Plate Drill Rod Guide 103484 Standard Assembly 3400 Ref...

Страница 120: ...y Please ask for special 2 day air shipment rates Please have the following information available when calling System model and serial number Part number serial number if applicable Is system still un...

Страница 121: ...lephone please write Confirming Order on any follow up written requests NOTE Returning a 3430 gauge requires special handling and shipping procedures Follow the instructions in Appendix D Please conta...

Страница 122: ...ve IL 60515 Fax 630 261 9341 Western Regional Branch Office 11300 Sanders Drive Suite 7 Rancho Cordova CA 95742 Fax 916 631 0541 Southwestern Branch Office 2016 East Randol Mill Road Suite 406 Arlingt...

Страница 123: ...Atomic Energy Agency IAEA The IAEA recommendations have been codified in the International Air Transport Association IATA Dangerous Goods Regulations International customers should consult their local...

Страница 124: ...e www troxlerlabs com A copy of the results of the Type A package testing must be kept on file Hazmat employee training records must be kept on file An Emergency Response Information document must be...

Страница 125: ...s during the course of transportation including loading unloading and temporary storage in which fire breakage spillage or suspected contamination occurs involving shipment of radioactive materials Ha...

Страница 126: ...ulations TPRM apply any time a nuclear device used in commerce is transported by any means in Canada For training and accident notification requirements consult the Transportation Of Dangerous Goods R...

Страница 127: ...ARD COUNT LOG Use the form in this appendix as a guide when recording the daily standard counts To verify gauge stability compare the daily standard count to the average of the last four recorded stan...

Страница 128: ...E 2 Date MS DS Date MS DS STANDARD COUNT LOG Gauge Serial Number...

Страница 129: ...Model 3430 E 3 Date MS DS Date MS DS STANDARD COUNT LOG Gauge Serial Number STANDARD COUNT LOG...

Страница 130: ...E 4 Date MS DS Date MS DS STANDARD COUNT LOG Gauge Serial Number...

Страница 131: ...he shipper to convert the activity on the Bill of Lading from curies to becquerels GBq Until everyone is accustomed to the SI units it is permitted to follow the SI units with the English units in par...

Страница 132: ...0 3048 m 1 pcf 16 02 kg m3 1 pcf 1 6 10 2 g cm3 RADIOLOGICAL UNITS 1 rem 0 01 Sv 1 Ci 37 GBq 1 mCi 37 MBq 1 Ci 37 kBq The following table is provided to assist the operator in converting from millicur...

Страница 133: ...7 ASTM standards 1 2 Atomic structure A 2 B Backscatter Geometry 2 3 Mode 2 2 Base mechanical assembly C 18 Battery Alkaline use C 8 Charging C 8 Bequerel A 3 C Calibration Constants 5 9 Special 4 7 C...

Страница 134: ...uages 5 11 Dosimetry A 7 A 11 Drift test 5 5 E Effect of top layer 4 11 Electrical specifications B 5 Emergency response Information D 2 Telephone number D 3 Encapsulation A 11 G Gasket replacement C...

Страница 135: ...C 10 Sliding block C 12 Source rod bearing C 11 Supplies C 25 Malfunction indicators C 6 Marshall value entering 3 8 Marshall Proctor MA PR Mode 3 8 mCi A 3 Measurement Asphalt mode 3 17 Converting u...

Страница 136: ...ffset 4 2 4 4 Moisture measurement theory 2 5 O Offset 4 2 Density 4 2 4 3 Moisture 4 2 4 4 Trench 4 2 4 6 Operation Advanced 4 1 General 3 1 Special functions 5 1 Temperature B 6 Theory 2 1 Optional...

Страница 137: ...sphalt 3 17 Soils and base courses 3 15 Recall 5 2 Reference standard block 1 4 3 10 5 3 Replacement Gaskets C 14 Parts C 16 Returning the gauge for service C 26 S Safe position 3 4 Scaler assembly C...

Страница 138: ...5 7 Specifications B 1 Electrical B 5 Measurement B 2 Mechanical B 6 Radiological B 4 Standard count 3 10 Log E 1 Standards ASTM 1 2 Stat test 5 2 Limits 5 2 STD function 3 3 3 10 Storage site 1 7 T T...

Страница 139: ...sportation regulations D 2 Trench offset 4 2 4 6 Troubleshooting C 2 Tungsten sliding block maintenance C 12 U V W Units 3 7 Converting F 1 Unpacking and inspection 1 6 Viewing data 5 2 Voidless densi...

Страница 140: ...Index 8 NOTES...

Страница 141: ...Model 3430 Warranty 1 NOTES WARRANTY...

Страница 142: ...reement THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF AND THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED AND TROXLER NEITHER ASSUMES N...

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