Mazur Instruments PRM-7000 Скачать руководство пользователя

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| PRM-7000 / 8000 / 9000 Users Guide

17. PRM-7000 Specifi cations¹

Battery Life²

Standard 9V Lithium

60,000 Hours / 6.85 Years

Standard 9V Alkaline

28,250 Hours / 3.22 Years

Measurement
Front End

Detector

LND 713 Geiger-Muller tube, Halogen-quenched Thin Wall
Beta-Gamma Detector (Made in The USA)

Radiation Detected

beta, gamma and x-radiation

Energy Sensitivity

beta / gamma / X-rays: min 35 keV

gamma sensitivity: 450 CPM/mR/hr
calibrated to Cesium-137 (Cs137)

Accuracy

±10% Typical, ±15% Maximum

Measurement Ranges

0.001 to 500 mR/hr
0.01 to 5,000 uSv/hr
1 to 500,000 uR/hr
1 to 225,000 CPM (450 CPM/mR/hr)
0 to 3,750 CPS (7.5 CPS/mR/hr)
Total Count: 0 to 4,294,967,295 (32 Bit Integer)

Measurement Statistics

Continuous availability of Average, Minimum and Maximum
dose rate measurements in
either uR/hr, mR/hr, uSv/hr, CPS or CPM

Time stamp on new maximum

Dose Rate Alarm

Alarm can be set in mR/hr or uSv/hr to any value within the
measurement range.

Internal Data Logging

Storage

100,000 Bytes non-volatile memory

Logging Intervals

Every Minute or Every Hour

Maximum Capacity

91,466 Minutes or Hours
(90% Normal Background, 10% Full-Scale)

Minimum Capacity

32,656 Minutes or Hours
(100% Full-Scale Measurement Levels)

Logging Output Format

Standard Comma Separated Value (CSV) with time stamp
and CPM Data (1000 CPM/mR/hr)

Содержание PRM-7000

Страница 1: ...PRM 7000 8000 9000 Nuclear Radiation Monitor Users Guide Rev 1 2 Jan 2017...

Страница 3: ...e and Date 11 4 8 Elapsed Time 12 5 Navigating the Menu System 13 6 Performing a Timed Measurement Timed Measure 14 6 1 Perpetual Timed Measurements 15 7 Changing the Units of Measurements Set Units 1...

Страница 4: ...the User Interface Language Language 25 13 Replacing the Internal Battery 26 14 Fundamental Measurement Procedures 27 14 1 Determining Background Radiation 27 14 1 1 About Background Radiation 27 14 1...

Страница 5: ...nt in the PRM Instrument This symbol indicates that additional caution should be exercised by the user Notify your local environmental and or hazardous material authorities if you have concerns that y...

Страница 6: ...ED Indicator C Back Key D External Audio and Data Jack E External DC Power Input Jack F Up Key G Down Key H Sound Port I Select Power On Key J Geiger M ller Pancake Tube Window PRM 9000 Only K Geiger...

Страница 7: ...00 feet a typical reading would be in the vicinity of 0 400 mR hr or approximately 180 beeps per minute for the PRM 7000 400 beeps per minute for the PRM 8000 or 1 400 beeps per minute for the PRM 900...

Страница 8: ...ain Menu 3 4 Setting Time and Date 1 If the Display is off power saving mode press any key to wake up the PRM Instrument 2 Press to display the Main Menu 3 Press two times to display the Settings menu...

Страница 9: ...de the user with a complete as sessment of the radiation level of the environment where the monitor is located While powered on and even in sleep mode the PRM Instrument is constantly record ing this...

Страница 10: ...Measurement display 4 2 Average Measurement This display indicates the Average dose rate level that has been measured since the de vice was turned on or since the Average Maximum Minimum Total and Ela...

Страница 11: ...e At higher levels the Maximum and Minimum are determined by measurements recorded every second 4 5 Total Count Measured This display indicates the total number of pulses from the Geiger tube recorded...

Страница 12: ...sed Time This screen displays the elapsed time in days hours minutes and seconds since the last reset of the Elapsed Time registers The Elapsed Time shows the time frame durin which the Average Minimu...

Страница 13: ...as the control over the averaging performed at low dose rates 4 Utilities This sub menu includes functions to reset the measurement counters Average Minimum Maximum Total and Elapsed Time perform a h...

Страница 14: ...30 60 or 90 minutes To take a timed measurement set the desired length and start the measurement as follows 1 From the Home Screen press to activate the Main Menu 2 Press again to select the Timed Mea...

Страница 15: ...e Screen press to activate the Main Menu 2 Press once to move to Set Units 3 Press key to select the Set Units menu 4 The current units will be displayed and pressing the key will change the setting 5...

Страница 16: ...larm dose rate level is exceeded NOTE Once an alarm condition is present the alarm will continue to sound until the measurement is no longer greater than the threshold level 8 4 Setting Alarm Threshol...

Страница 17: ...ion the unit will enter a sleep mode in order to conserve battery power Once any key is pressed the LCD will resume normal opera tion In the Lowest setting the backlight will be turned off after 15 se...

Страница 18: ...lay and operations continue normally until the inactivity threshold of the selected Power Setting is exceeded 8 9 Low AvWin This setting allows the user to specify the time in seconds or window over w...

Страница 19: ...re the factory default calibration see the Load Defaults command below 9 3 Powering Down the Unit Power Down The PRM Instrument is designed to be Always On and the internal battery life in sleep mode...

Страница 20: ...or the 20mR hr first calibration point 6 Press any key to go to the second calibration point The exposure level for the second calibration point is PRM X000 model depen dent as follows PRM 7000 500 mR...

Страница 21: ...e six digit CPM value as well as the text CPM to indicate the units For Example 10 30 00 04 08 2011 000025 CPM CR Baud rate is fixed at 57 6K baud 8 bits no parity 2 stop bits Using a terminal emulato...

Страница 22: ...ata currently in logging memory will be erased Press to continue and start log ging or any other key to cancel logging and return to the Home Screen NOTE Turning the PRM Instrument off or performing a...

Страница 23: ...d to make sure the user intended to stop the log Press to stop the log 11 4 Sending Uploading Data to a PC or Mac The following steps can be used for uploading log data to a PC More detailed instruc t...

Страница 24: ...left clicking on it once d Choose OK and or Next and the computer should install the Driver software Go to Step 2 above 5 Once you have your COM port use a terminal emulator such as Tera Term Users c...

Страница 25: ...Open Office or other application program to analyze and plot the data 14 NOTE The CPM data stored in the log can be converted into mR hr or uSv hr using the following PRM Instrument calibration relat...

Страница 26: ...ent 4 Disconnect the 9 Volt battery clip by moving the 9 Volt battery down in its bracket so that it covers the Mazur Instruments logo and then removing the clip from the battery 5 From the terminal s...

Страница 27: ...an made radionuclides that could be in the environment are Cesium 137 137Cs Strontium 90 90Sr and various isotopes of Plutonium Prior to the 1963 Limited Test Ban Treaty fallout from atmospheric nucle...

Страница 28: ...diation is also responsible for the production of radioactive elements called cosmogenic radionuclides These radionuclides are produced from collisions between the highly energetic cosmic radiation wi...

Страница 29: ...the area If increased radiation indicating prior contamination is suspected in a particular region within the area take timed measurements of the same duration Compare results with the normal backgrou...

Страница 30: ...acers or shims to isolate the PRM Instrument from the surface and if any contamination is found dispose of the spacers appropriately 14 5 Measuring Food Measuring food for radiation typically requires...

Страница 31: ...across the item in an even and steady manner while maintaining the same sensor distance from the item Note any obvious increases in the beep or LED blink rate of the PRM Instrument 6 If desired use a...

Страница 32: ...asure the contents of a filter that has been in use for a reasonable amount of time to filter the air of interest Examples include whole house heating and cooling filters HEPA Filters and automobile c...

Страница 33: ...ntgen R and in SI coulomb kilogram C kg Absorbed dose describes the amount of radiation absorbed by an object or person That is the amount of energy that radioactive sources deposit in materials throu...

Страница 34: ...e Health Physics Society http hps org documents environmental_radiation_fact_sheet pdf states Each year a resident of the United States receives an average total dose from background radiation of abou...

Страница 35: ...adiation Protection Division http www epa gov radiation United States Nuclear Regulatory Commission NRC http www nrc gov 16 2 Additional Reading Cember H Introduction to Health Physics 4th ed McGraw H...

Страница 36: ...000 uR hr 1 to 225 000 CPM 450 CPM mR hr 0 to 3 750 CPS 7 5 CPS mR hr Total Count 0 to 4 294 967 295 32 Bit Integer Measurement Statistics Continuous availability of Average Minimum and Maximum dose...

Страница 37: ...or media player headphones Jack can also be provisioned by the user for pulse output or as a USB Interface for logging data by PC or transferring internal data logging memory requires optional cable...

Страница 38: ...001 to 200 mR hr 0 01 to 2000 uSv hr 0 to 3 333 CPS 16 66 CPS mR hr 0 to 200 000 CPM 1000 CPM mR hr Total Count 0 to 4 294 967 295 32 Bit Integer Measurement Statistics Continuous availability of Ave...

Страница 39: ...or media player headphones Jack can also be provisioned by the user for pulse output or as a USB Interface for logging data by PC or transferring internal data logging memory requires optional cable...

Страница 40: ...001 to 125 mR hr 0 01 to 1 250 uSv hr 1 to 125 000 uR hr 1 to 437 500 CPM 3 500 CPM mR hr 0 to 7 291 CPS 58 33 CPS mR hr Total Count 0 to 4 294 967 295 32 Bit Integer Measurement Statistics Continuous...

Страница 41: ...s or media player headphones Jack can also be provisioned by the user for pulse output or as a USB Interface for logging data by PC or transferring internal data logging memory requires optional cable...

Страница 42: ...or neglect STATEMENT OF REMEDY In the event that the product does not conform to the war ranty at any time while this warranty is effective Mazur Instruments will repair the defect and return the ins...

Страница 43: ...s will not accept contaminated instruments for repair under warranty or otherwise NOTE Before using the PRM 7000 PRM 8000 and or PRM 9000 for the detection measurement and monitoring of nuclear radiat...

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