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Ludlum Measurements 240 Series Скачать руководство пользователя страница 4

Model 240 Series

User’s Manual

Table of Contents

Introduction

1

Getting Started

2

Unpacking and Repacking

2-1

Gas Bottle Installation

2-1

Specifications

3

Operating Procedures

4

Maintenance

5

Gas Proportional Detectors

5-1

Scintillation Detectors

5-1

Safety Considerations

6

Environmental Conditions for Normal Use

6-1

Warning Markings and Symbols

6-1

Cleaning and Maintenance Precautions

6-2

Recycling

7

Drawings

8

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Содержание 240 Series

Страница 1: ...LUDLUM MODEL 240 SERIES FLOOR AND WALL MONITOR USER S MANUAL October 2020 ...

Страница 2: ...LUDLUM MODEL 240 SERIES FLOOR AND WALL MONITOR USER S MANUAL October 2020 ...

Страница 3: ...ny implied warranty of merchantability or fitness which extend beyond the description of the face there of If the product does not perform as warranted herein purchaser s sole remedy shall be repair or replacement at the option of Ludlum Measurements In no event will Ludlum Measurements be liable for damages lost revenue lost wages or any other incidental or consequential damages arising from the ...

Страница 4: ...1 Gas Bottle Installation 2 1 Specifications 3 Operating Procedures 4 Maintenance 5 Gas Proportional Detectors 5 1 Scintillation Detectors 5 1 Safety Considerations 6 Environmental Conditions for Normal Use 6 1 Warning Markings and Symbols 6 1 Cleaning and Maintenance Precautions 6 2 Recycling 7 Drawings 8 ...

Страница 5: ...Detector to surface spacing is adjustable and detectors are positioned for no dead zones when scanning Gas proportional models come with a gas regulator flowmeters and gas lines but the P 10 gas bottle is not included The cart also provides two holders for spare detectors to provide for replacement if a detector becomes damaged T Section 1 The left photo shows the gas proportional version without ...

Страница 6: ...ls The laptop display makes it easy to view all 12 detectors simultaneously and provides setup wizards to help with establishing operating points for the detectors See the Model 240 Software Manual for more information The system initially measures radiation background from the detector array allowing the operator to see net counts during scanning While scanning a rolling average is checked on all...

Страница 7: ...s regulator input output and space purge flowmeter no P 10 gas bottle provided Model 240S Scintillation Floor and Wall Monitor part 48 4131 includes 12 Model 43 93 scintillation 100 cm2 detectors and Toughbook laptop Model 240 1 Floor Monitor part 48 4122 gas proportional system as above floor version only Model 240 1S Scintillation Floor Monitor part 48 4132 scintillation system as above floor ve...

Страница 8: ... Repair and Calibration division where you will find a link to the form Gas Bottle Installation When using the gas proportional version of the Model 240 you will need to use a bottle of P 10 gas not included As given in the Specifications section the maximum gas bottle size is 22 9 cm 9 in diameter by 66 cm 26 in tall The following is the procedure to install the gas bottle 1 The instrument typica...

Страница 9: ...ting Finger tight is sufficient 5 Cut the subbing to the desired length to reach the top of the box on the handle of the cart that has the flowmeters Remove the existing nut from the fitting on the quick disconnect above the IN flowmeter Insert the other end of the vinyl tubing into one of the plastic nuts and screw the nut onto the fitting Finger tight is sufficient 6 Proceed to the operating pro...

Страница 10: ...ically 1 2 mg cm2 three layers of metallized polyester for alpha beta detection Efficiency 4π approximately 20 for both alpha and beta see detector manauls data sheets for more specific details Speed Resolution 0 25 cm 0 1 in per second Quick Connects Swagelock brand 1 8 mpt to OD tubing Gas Consumption approximately 35 cc min Flowmeters both IN and OUT 0 100 cc min Flow Rate 35 cc min after purgi...

Страница 11: ...rs Series C type is default others available Temperature Range 15 to 50 C 5 to 122 F Maximum Gas Cylinder Size 22 9 x 66 cm 9 x 26 in Dia x H 17 0 L 0 603 ft capacity Size model specific but approximately 198 x 53 3 x 122 cm 78 x 21 x 48 in H x W x L Weight model specific but approximately 68 kg 150 lb ...

Страница 12: ...The high pressure regulator should show the supply pressure from the gas bottle Turn outlet regulator valve clockwise to register between 3 and 5 psi Open the flowmeter valve on the cart s input flowmeter Adjust the input flowmeter to 100 cc min to flush the air out of the detector After flush flow may be reduced to 35 cc min Allow 10 minutes to purge the system Note The outlet flow indicator on t...

Страница 13: ...ments Inc Page 4 2 October 2020 Connect the detector to the counting instrument High voltage is preset at the factory to read alpha and beta Background count will read approximately 1000 1400 cpm Adjust the height of the detector for optimum performance ...

Страница 14: ...ate a gas leak in the system Any holes in the window will allow counting gas to escape causing degradation of detector efficiency If the window needs replacing in the detector the detector should be checked for both gas leaks and high voltage shorts before replacing the detector on the cart Indication of a broken wire is low or erratic high voltage reading Foreign particles wire tails on the stand...

Страница 15: ...rial or construction sites Not certified for use in an explosive atmosphere Warning Markings and Symbols Caution The operator or responsible body is cautioned that the protection provided by the equipment may be impaired if the equipment is used in a manner not specified by Ludlum Measurements Inc The Model 240 is marked with the following symbols CAUTION per ISO 3864 No B 3 1 designates hazardous...

Страница 16: ...cling for further information The CE mark is used to identify this instrument as being acceptable for use within the European Union Cleaning and Maintenance Precautions The Model 240 may be cleaned externally with a damp cloth using only water as the wetting agent Observe the following precautions when cleaning or performing maintenance on the instrument 1 Turn the instrument OFF and remove the ba...

Страница 17: ...ther but simply desires to inform its consumers of the range of recyclable materials present in its products so that the user will have flexibility in following all local and federal laws The following types of recyclable materials are present in Ludlum Measurements Inc electronics products and should be recycled separately The list is not all inclusive nor does it suggest that all materials are p...

Страница 18: ...tion8 Ludlum Measurements Inc Page 8 1 October 2020 Drawings Model 240 Dimensions Drawing 304 x 193K Model 240S Dimensions Drawing 304 x 300F Model 240 1 Dimensions Drawing 304 x 279 Model 240 1S Dimensions Drawing 304 x 306 Section 8 ...

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