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X-RAY AND GAMMA RADIATION PERSONAL DOSIMETER

РМ

1621M (PM1621MA)

OPERATING MANUAL

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Summary of Contents for PM1621M

Page 1: ...X RAY AND GAMMA RADIATION PERSONAL DOSIMETER РМ1621M PM1621MA OPERATING MANUAL 2 ...

Page 2: ...tions 16 2 3 Preparation for use 16 2 4 Use of the instrument 16 3 MAINTENANCE 26 4 TROUBLESHOOTING 27 5 STORAGE AND SHIPPING 28 6 WARRANTY 29 ATTACHMENT A Overall dimensions Effective center of the detector 30 ATTACHMENT B Diagram of instrument rotation to measure angular response 31 ATTACHMENT C Typical instrument anisotropy 32 ATTACHMENT D Typical instrument energy dependence relative to the en...

Page 3: ...e Operating Manual includes the general description specifications of the instrument as well as other information necessary for the proper operation of the instrument and understanding of device capabilities Changes may be made to the instrument electrical scheme construction design and software that do not influence the specifications and therefore may be not specified in this manual 4 ...

Page 4: ...R adapter Instruments may be used independently or as a part of a system for everyday efficient and emergency dosimetric control of personnel production facilities and units where there is a potential or real risk of exposure to external X ray and gamma radiation Customs and border officers personnel of nuclear facilities radiological and isotope laboratories officers of the emergency services civ...

Page 5: ... manual 1 Package 1 Alkaline AA type battery РANASONIC POWER LINE LR6 or similar 2 1 Accessories 1 Infrared communication kit 1 Pouch1 1 Alkaline AA type battery Energizer L91BP 2 or similar 3 1 1 Available as an option by special order 2 Used within the temperature range of minus 20 plus 60 C Usage of other batteries with similar parameters is allowed 3 Used within the temperature range of minus ...

Page 6: ...9 9 mSv h 100 200 mSv h 100 999 mSv h РМ1621MА 1 00 2 00 Sv h РМ1621MА DER analogue scale seven segments in a logarithmic gauge Number of indicated segments from left to right corresponds to the following DER threshold values on the LCD display one segment 0 1 µSv h two segments 1 µSv h three segments 10 µSv h four segments 100 µSv h five segments 1 mSv h six segments 10 mSv h seven segments 100 m...

Page 7: ...ceed values in presented in Table 1 2 when the device is rotated in the horizontal plane Attachment B figure B 1 and values in presented in Table 1 3 when the device is rotated in the vertical plane Attachment B figure B 2 Table 1 2 Energy of gamma radiation MeV Anisotropy Angle of detection relative to the direction of graduation 0 059 0 662 1 25 0 0 0 0 15 5 5 5 30 10 10 10 45 20 15 15 60 40 20 ...

Page 8: ...xceeding 10 µSv h no more than 5 s 15 Response time according to IEC 61526 when DER value is decreased more than 10 times from initial high to finite fixed low DER value exceeding 10 µSv h no more than 10 s 16 PC communication by special software using IR communication channel adapter 17 In the PC data exchange mode the instrument provides the following functions 1 permission or prohibition of the...

Page 9: ...in frequency of audible vibration and visual alarms indication the search mode ON OFF 19 In the mode of indication of the audible alarm the instrument provides the following functions turn on off the audible alarm indication of turning ON OFF of the audible alarm sound pressure level control and indication in the analog scale and digital formats from 1 to 4 20 In the mode of indication of the vibr...

Page 10: ...nt meets drop test against a concrete surface from the height 0 7 m 27 The instrument is proof against static and variable magnetic fields of strength up to 400 А m 28 The instrument is proof against the action of radio frequency electromagnetic fields in the frequency range 26 1000 MHz of strength up to 10 V m 29 The instrument in a transport package is proof against temperature from minus 50 up ...

Page 11: ...ary power supply IR transceiver Microprocessor Audible signal Control buttons LCD Radiation detector Figure 1 1 Block diagram of the instrument A Geiger Muller tube with a filter for spatial energy formation of sensitivity which converts photon radiation quanta to electric pulses is used as a radiation detector The detector has a high voltage power supply The microprocessor controls the instrument...

Page 12: ...e instrument s number indication of IR communication channel switch on off in the PC data exchange mode indication of search mode switch on off 3 digital panel of the coefficient s of variation indication in percents in DER indication mode DE accumulation time s indication in thousands of hours h in DE indication mode indication of production month and year in the instrument s number indication mo...

Page 13: ...Figure 1 2 General overview of the instrument 14 ...

Page 14: ...Figure 1 3 The PM1621M with a removable clip 15 ...

Page 15: ...r Right after inserting the battery the dosimeter performs LCD testing all the segments and graphic symbols will display for about 2 seconds and then disappear then the dosimeter should enter the measurement mode One minute after inserting the battery the dosimeter is ready for use 2 3 4 Place and fix the instrument detector outwards on a breast pocket of overalls or inside it or on the belt Atten...

Page 16: ...dication Mode On Figure 1 2 Item 2 DE values output Figure 1 2 Item 3 Output of DE accumulation time values in thousands hours symbol h is indicated at DE accumulation timeless than a thousand hours Figure 1 2 Item 4 Output of DE accumulation time values in hours On Figure 1 2 Item 4 Output of values of time remaining for staying at the working place Off Thresholds setting enable On DE reset On Au...

Page 17: ...The first method recommended In the beginning of measurement the DE should be reset using the keys or the PC and the program System of date collection and processing for the 1621 device Then the dose displayed at the end of the period will be the dose accumulated over the period of measurement The second method The dose value in the beginning of the period of measurement should be deducted from th...

Page 18: ...E history hereinafter history DER accumulation events of exceeding the preset DE and DER threshold values event of DE reset trough IR communication channel using the buttons Selection of the events to be stored in the history and frequency of these recordings is performed using software History data are inaccessible without IR adapter internal or external The instrument performs data transmission ...

Page 19: ...holds Interval of DER history and DE accumulation recording Current time and date for forming DE accumulation history Official information 2 4 8 Search mode In search mode instrument can detect and locate the gamma radiation source For this purpose it is necessary to turn on the search mode How to turn on the search mode shown in Figure 2 1 When the first DER alarm threshold is exceeding source de...

Page 20: ...n the vibration alarm indication mode Fig 2 1 the instrument provides the following functions turn On Off vibration alarm indication of turning On Off of the vibration alarm 2 4 11 Partial or critical battery discharge indication mode The instrument checks battery discharge once every 10 minutes If the battery has been partially discharged approximately 1 1 V the LCD will flash the symbol bat In c...

Page 21: ...Figure 2 1 Choice of operating mode indication of the instrument 22 ...

Page 22: ...Figure 2 2 Setting the DE threshold values 23 ...

Page 23: ...hreshold number flashing flashing press button SET press button SET flashing press button SET flashing press and hold button for 5s SET flashing flashing press button SET threshold number flashing press button SET press button SET flashing press button SET flashing press and hold button for 5s SET Figure 2 3 Setting the DER threshold values 24 ...

Page 24: ...Figure 2 4 Audio control mode control of the sound volume 25 ...

Page 25: ...lacement unscrew and remove the cover of the battery compartment remove the old battery insert the battery into the compartment making sure that the positive end of the battery is inserted first replace the battery compartment cover After the battery is replaced the LCD will display all segments and then the instrument should enter the measurement mode All the previous measurements and parameters ...

Page 26: ... the battery correctly 3 The device does not respond to pressing a button the LCD indicates incorrect symbols Microprocessor error condition Remove the battery and insert again after 5 minutes 4 The LCD indicates Er1 Er7 Instrument failure Return instrument for repair Note If a defective battery is used the Er1 Er7 message may appear A t t e n t i o n When the Er1 Er7 message appear press any butt...

Page 27: ... should be placed in sealed compartments 5 5 Devices should be stored in the manufacturer s package at an air temperature ranging from 15 to 50 C and relative temperature ranging from 15 to 50 C and relative humidity up to 95 at a temperature of 35 C 5 6 Devices without package should be stored at an air temperature from 10 to 35 C and relative humidity up to 80 at a temperature of 25 C 5 7 The st...

Page 28: ...ate of sale 6 3 Warranty and after warranty repair is carried out by the manufacturer or the institutions that have a permission of the manufacturer 6 4 Warranty does not cover the devices without the operating manual in case of their unauthorized opening with mechanical damages if the requirements of exploitation and storage were not satisfied 6 5 The warranty period of use is prolonged for a per...

Page 29: ...TACHMENT A reference OVERALL DIMENSIONS EFFECTIVE CENTER OF THE INSTRUMENT DETECTOR 72 mm 87 mm Effective center of the detector 35 mm Graduation direction to radiation source 41 7 mm 15 mm Figure A 1 30 ...

Page 30: ...e DIAGRAM OF INSTRUMENT ROTATION TO MEASURE ANGULAR RESPONSE α α α α radiation beam radiation beam Figure B 2 Diagram of instrument rotation in vertical plane Figure B 1 Diagram of instrument rotation in horizontal plane 31 ...

Page 31: ...ration direction 0o Figure C 1 for horizontal installation at the phantom rotation in vertical plane 1 241 Am 59 5 keV 2 137 Cs 662 keV 3 60 Co 1250 keV Figure C2 for vertical installation at the phantom rotation in horizontal plane 1 241 Am 59 5 keV 2 137 Cs 662 keV 3 60 Co 1250 keV 32 ...

Page 32: ...3 1 10 4 1 10 5 0 0 2 0 4 0 6 0 8 1 1 2 1 4 E keV E keV 12 16 20 24 33 48 59 5 65 83 100 118 164 205 248 662 1250 6000 20000 Hp 10 E Hp 10 662 keV 1 11 0 79 0 81 0 86 1 11 1 10 1 07 1 02 1 0 99 0 98 0 97 0 92 0 89 1 1 19 0 94 0 88 Figure D 1 Typical instrument energy dependence relative to the energy 662 keV of 137 Cs gamma radiation Hp 10 E Hp 10 33 ...

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