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MODEL 43-37 AND MODEL 43-37-1

GAS PROPORTIONAL DETECTORS

December 2016

Serial No. 086152 and Succeeding

Serial Numbers

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Summary of Contents for 086152

Page 1: ...MODEL 43 37 AND MODEL 43 37 1 GAS PROPORTIONAL DETECTORS December 2016 Serial No 086152 and Succeeding Serial Numbers ...

Page 2: ...MODEL 43 37 AND MODEL 43 37 1 GAS PROPORTIONAL DETECTORS December 2016 Serial No 086152 and Succeeding Serial Numbers ...

Page 3: ...ranted 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 purchase use or inability to use the product RECEIVING CONDITION EXAMINATION Be sure to verify that the shipping carton is received in good condi...

Page 4: ...tional Detectors December 2016 page i TABLE OF CONTENTS 1 GENERAL 1 2 SPECIFICATIONS 1 3 PRELIMINARY INSTRUCTIONS 2 4 HOOK UP 2 5 FLUSH 2 6 DETECTOR PERFORMANCE 3 7 STATIC OPERATION 3 8 RECHARGE 4 9 PARTS LIST 4 DRAWINGS DIAGRAMS 5 ...

Page 5: ...Model 43 37 43 37 1 Gas Proportional Detectors December 2016 page ii ...

Page 6: ...ethane 90 argon is recommended Other counting gasses are also acceptable GAS RECHARGE Expected time of operation on static charge with 39 inch cable Gross counting mode 15 hours or longer Alpha beta mode 5 hours or longer OPERATING VOLTAGE Alpha Typically 1100 1400 volts Beta Gamma Typically 1700 1800 volts COUNTER THRESHOLD SETTING Typically 4 mV for scaler or gross counting instrument BACKGROUND...

Page 7: ...choose the appropriate Repair and Calibration division where you will find a link to the form 4 HOOK UP NOTE Plastic dust caps should always be in place on detector gas connectors when gas lines are disconnected except during a fast flush Dust caps prevent dust and other materials from interfering with the function of the check valves and should be in place when the detector is operating on a stat...

Page 8: ...sure that each section reading is within 10 of the average of the readings If the count is not statistically uniform check for light leaks in the window and repeat flush procedures BETA GAMMA PLATEAU Determine the plateau region in the background and beta gamma source counting curves for the applied voltage range of 1500 volts to 1900 volts or from 1500 volts to when either the source or backgroun...

Page 9: ...robe 47 2243 Body Model 43 37 7304 007 Body Model 43 3 1 7304 036 1 EA Detector Cover Face Model 43 37 7304 010 1 EA Detector Cover Face Model 43 37 1 7304 028 1 EA Hex Screen Model 43 37 7304 011 1 EA Hex Screen Model 43 37 1 7304 025 1 EA Holding Ring Model 43 37 7304 012 1 EA Holding Ring Model 43 37 1 7304 030 1 EA Series C Connector 13 7751 2 EA Quick Disconnect Fitting Stem 13 7912 2 EA Quic...

Page 10: ...Model 43 37 43 37 1 Gas Proportional Detectors December 2016 page 5 DRAWINGS DIAGRAMS Assembly View Model 43 37 Drawing 304 x 18 Assembly View Model 43 37 1 Drawing 304 x 41 ...

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