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SPECTROSCOPIC PERSONAL RADIATION DETECTOR

РМ1704

OPERATION MANUAL

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Содержание PM1704

Страница 1: ...SPECTROSCOPIC PERSONAL RADIATION DETECTOR 1704 OPERATION MANUAL...

Страница 2: ...ory Setting Mode 33 11 1 6 3 Alarms On Off 33 11 1 6 4 Display Settings Configuration 34 11 1 6 5 Select Battery Type 34 11 1 6 6 Set Instrument Date and Time 35 11 1 6 7 Set Volume of Sound Alarm 35...

Страница 3: ...key technical specifications of the instrument operation and maintenance guidelines metrological examination as well as other necessary information on correct instrument operation and full utilizatio...

Страница 4: ...t is more expanded as one of PM1704 Instrument belongs to the family of portable measuring instruments of ionizing radiation that can be operated in laboratories and field conditions Instrument can be...

Страница 5: ...Personal Radiation Detector 1704GN 1 Spectroscopic Personal Radiation Detector 1704 1 Battery1 1 1 1 Certificate 1 1 1 Quick start 1 1 1 Data storage Operation Manual2 User Guide 1 1 1 Package 1 1 Ba...

Страница 6: ...field 1704 from 0 1 to 100 Sv h from 0 1 Sv h to 10 0 Sv h 3 4 Limits of permissible main relative DER measurement error 1704 1704GN referred to 662 keV of 137 Cs in collimated gamma field 1704 30 30...

Страница 7: ...25 10 180 40 70 5 20 10 30 5 20 5 15 15 60 20 60 5 15 15 90 30 90 10 30 10 30 120 20 70 5 20 10 40 150 20 70 10 5 Table 3 3 Angle of detection relative to direction of calibration deg Gamma energy MeV...

Страница 8: ...coefficient equal to 4 5 during 1 hour of continuous operation at n coefficient equal to 3 5 3 21 Average time of 1704GN operation located on phantom no more when detecting quickly generated radiatio...

Страница 9: ...inuous operation at gamma background level no more than 0 25 Sv h detect gamma sources with probability of 0 95 according to Table 3 5 3 27 Communication information exchange with PC USB port 3 28 Ran...

Страница 10: ...quality functioning 3 32 Instruments meet drop test against the concrete surface from the height 1 5 m 3 33 Operating supply voltage 1 5 V 3 34 Time of continuous instrument operation till the symbol...

Страница 11: ...ma radiation source activity kBq uCi 55 0 1 5 100 0 2 7 50 0 1 35 Speed source instrument m s 0 5 0 05 0 5 0 05 0 5 0 05 Distance between the source and sensitive detector surface m 0 2 0 005 0 2 0 00...

Страница 12: ...el bears mini USB connector protected by the terminator removable lid of battery compartment battery is placed in it LED of light alarm boozer audio signaling device and microphone Instrument s back p...

Страница 13: ...rocess of radionuclide isotope composition turn on LCD backlight Key is used to call MODE command to switch between two main instrument operation modes MEASUREMENT and quick identification IDENTIFICAT...

Страница 14: ...signs keypad blockage connected to the USB battery charge level audio alarm on off search mode 2 area to display instrument operation modes 3 analogue scale 4 screen menu buttons sign of USB connectio...

Страница 15: ...Select instrument operation modes and program instrument with the help of 4 keys keypad and LCD Measurement results and instrument operation modes are displayed on color LCD Internal nonvolatile instr...

Страница 16: ...16 Figure 6 2 Geometric centers of gamma detector and neutron detector and 1704GN direction of calibration Figure 6 3 Geometric center of gamma detector 1704 direction of calibration...

Страница 17: ...ive sources must be done according to local radiation safety norms and sanitary rules of radiation safety When radioactive sources are detected observe corresponding norms and rules of working with ra...

Страница 18: ...s firmware consistency check Then instrument switches to test mode At being switched on and while operating in any mode the instrument continuously checks battery charge level Battery charge level is...

Страница 19: ...of battery type Use keys to select the required battery type Alkaline non rechargeable battery nominal voltage 1 5 V NiMH rechargeable battery nominal voltage 1 2 V Press OK to apply settings Figure...

Страница 20: ...ge is approximately 8 hours As soon as the battery is fully charged green LED is activated 9 3 1 Instrument connection to PC USB Connector The instrument being connected to PC automatically enters PC...

Страница 21: ...moval selection through USB Mass Storage Device unlock the keypad and activate all its operation modes When the battery is fully charged or in order to stop powering the instrument from external sourc...

Страница 22: ...lled and then starts software self check Then the instrument switches to test mode Press and hold the key during 5 s to switch on the instrument during operation Figure 4 1 Instrument switches to test...

Страница 23: ...cks its main modules while in test mode At first it tests battery charge level If the battery charge level decreases till permissible minimum less than 1 2 V on the LCD during 5 s is displayed the str...

Страница 24: ...ld is calculated individually for gamma and neutron radiation Coefficient n influences alarm threshold The lower n coefficient is the lower threshold value is and the higher instrument sensitivity is...

Страница 25: ...ement Mode Instrument automatically enters gamma radiation DER measurement mode when calibration is over as well as when user switches between instrument operation modes by pressing MODE key While in...

Страница 26: ...splayed in red color At that event that DER threshold LO HI was exceeded Figure 11 5 is recorded into instrument s non volatile memory Figure 11 5 Instrument activates audio monotonous double signals...

Страница 27: ...ing process At that every 0 25 s quantity of pulses for the last new interval is added to current sum and the quantity of pulses during the first the oldest interval is being subtracted from pulses to...

Страница 28: ...calculated by instrument in mode of calibration by background level If autocalibration in instrument is switched on instrument will automatically take into account slow background changes and calibra...

Страница 29: ...d In DER mode the whole range is a logarithmic scale from 0 01 Sv to the second DER alarm threshold In search mode it is a multiplication factor of search threshold Rate of coming signals is constant...

Страница 30: ...ew background level To do it press MENU key and select CALIBRATION tab keeping the same distance to object if possible Instrument will switch to mode of calibration by background level Instrument will...

Страница 31: ...Set volume of sound alarm 11 1 6 7 Search function on off in measurement mode Select measurement units 11 1 6 8 Set identification parameters 11 1 6 9 Threshold setting mode 11 1 7 Scintillation spec...

Страница 32: ...ntification information Then press SELECT key to open the tab Figure 11 9 LCD will display instrument identification information Instrument version 1704GN 1704 or 1704 S N instrument serial number Use...

Страница 33: ...will replace old events Press key and numerical value will be marked blue Figure 11 10 Use keys to set numeric value of interval and flag unflag Loop Mode check box Press NEXT key to go to the next o...

Страница 34: ...igure 11 12 To go to the next option press NEXT key Use keys to adjust brightness and switch backlight timeout in off and adjust its duration BRIGHTNESS adjust display brightness BATTERY backlight tim...

Страница 35: ...D Date set instrument current date Time set instrument current time Press OK when all settings are configured to save them Figure 11 13 11 1 6 7 Set Volume of Sound Alarm Use keys to select 7 Sound op...

Страница 36: ...rement units Units R h or Sv h Press OK when all settings are configured to save them Figure 11 15 11 1 6 9 Set Identification Parameters Use keys to select 9 Identification option while in SETTINGS m...

Страница 37: ...ip timeout min time in minutes for instrument to stop its attempts to identify radionuclide isotope composition and switch to DER measurement mode or search mode Press OK when all settings are configu...

Страница 38: ...t for gamma channel N coefficient setting range is from 1 to 9 9 s with 0 1 discreteness Recommended value is 5 3 For PM1704GN n coefficient defining neutron alarm threshold minimum detection level of...

Страница 39: ...tra registration mode Figure 11 19 Scintillation spectra registration mode enables the following scintillation spectra accumulation tab New 11 1 8 1 view saved scintillation spectra tab Load 11 1 8 2...

Страница 40: ...istance must be 5 cm or more Accumulate the spectrum at least 600 s then do accumulated spectrum identification according to the procedure given in the Chapter 11 1 8 1 1 Identification results must s...

Страница 41: ...y scintillation detection block be within 100 500 cps and then press START key LCD during spectrum accumulation will indicate the graph of accumulated spectrum in progress and time in seconds passed f...

Страница 42: ...in instrument s MENU SETTINGS 9 Identify tab 11 1 6 9 Identified radionuclides are classified into categories Special nuclear materials SNM 233 U 235 U 238 U 237 Np 239 Pu Medical MED 67 Ga 51 Cr 75 S...

Страница 43: ...n results saving When pressing keys STOP or EXIT the instrument will exit and go into scintillation spectra registration mode tab SPECTRUM line New Figure 11 25 11 1 8 1 3 Restart Accumulation To rest...

Страница 44: ...ter view mode of saved scintillation spectra Then press SELECT key Figure 11 28 Use keys to select from the saved spectra list the name of scintillation spectrum that will be loaded and press OK Figur...

Страница 45: ...to correct instrument calibration coefficients in case of their drifts The coefficient drift criterion is regarded to be the difference of the spectrum line measured energy of the reference source fro...

Страница 46: ...initial values by more than 25 means that the performed procedure failed In case the program gives error message when the autocalibration by the accumulated spectrum of the reference source is over th...

Страница 47: ...ctrum generated by the program Type Matrix material This option is used when considering the dependence of absorption in the energy range for the selected material Library Represents nuclides list wit...

Страница 48: ...for gamma channel is exceeded Open instrument s MENU SETTINGS 9 Identify tab 11 1 6 9 to switch on Start timeout sec option This option enables user to set time in seconds for instrument automaticall...

Страница 49: ...val events are recorded into instrument s non volatile memory edit DER threshold values HI LO edit gamma channel alarm threshold by changing n coefficient of gamma detector CsI edit neutron channel al...

Страница 50: ...ry is missing Battery is dead or misplaced Replace or place the battery again observing its polarity LCD displays sign Battery is dead Replace the battery or charge rechargeable battery ERROR 01 is in...

Страница 51: ...rformance characterization 14 7 3 1 Verification unit with 137 Cs source according to local government standards Certified uncertainty of verification unit must be no more than 5 at confidence probabi...

Страница 52: ...rument s surface there is no dirt and mechanical damages that can influence instrument operation 14 7 2 Do the following when testing check instrument operability according to Operation Manual 14 7 3...

Страница 53: ...test point Sv h oj H reference DER value in the reference test point Sv h 11 calculate confidence limits of permissible main relative error of DER measurement at confidential probability 0 95 by the f...

Страница 54: ...trument is considered suitable for operation If 1704GN instrument sensitivity to fast neutrons is 0 07 counts cm2 the instrument is considered out of spec 14 7 3 3 Check of radionuclides isotope compo...

Страница 55: ...apors alkaline and acid vapors and gases and other harmful corrosive impurities 15 2 Transportation Originally packed switched off instruments must be transported in any enclosed vehicle with the ambi...

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