RADIATION MONITOR РМ5000Р

Transcription

1 RADIATION MONITOR РМ5000Р Models: РМ5000Р РМ5000Р-01 РМ5000Р-02B РМ5000Р-03B OPERATION MANUAL 1

2 CONTENTS 1 Description and principle of operation Purpose and applicable scope Delivery kit Technical specifications Monitor design and operation General Monitor configuration Operation modes Designated usage Instructions on installation, start and regulation General notes Safety provisions Getting ready for installation Preparatory construction-and-assembling operations Unpacking instructions and delivery kit check-up External examination Monitor installation Guidelines for monitor turning on Troubleshooting Working with the monitor Functionality check Working in control mode Technical maintenance Technical maintenance of the monitor General notes Safety provisions Routine technical maintenance Preventive maintenance Technical maintenance of monitor modules Disassembly and assembly Verification test Introduction Procedures and tools Safety requirements Test conditions Test background Test procedure Verification protocol Package Storage Transportation Manufacturer warranty Appendix A Overall Monitor dimensions Appendix B Monitor components arrangement Appendix C Monitor unpacking procedure Appendix D Monitor installation

3 Current Operation Manual includes instructions on installation, set-up and adjustment, as well as a start-up certificate and an equipment certificate. The Operation Manual describes the structure, design and operation of the Radiation Monitor PM5000Р (further monitor ). Polimaster manufactures four models (versions) of the monitor. They are listed in Table 1.1. Detectable quantities of the radioactive and nuclear materials are listed in Table 1.2. This Operation Manual describes principal technical data and specifications of the monitor, operating instructions, maintenance recommendations as well as other data required for correct monitor exploitation and full employment of its capacities. During production of the monitor some modifications can be introduced into its electric circuit and design that do not affect the technical and metrological parameters that is why they are described in the present manual. Installation, setup and adjustment shall be performed by representatives of the manufacturer or by specialists trained by the manufacturer to perform such works. 3

4 1 Description and principle of operation 1.1 Purpose and applicable scope Radiation Monitor PM5000Р is designed to detect radioactive and nuclear materials (RNM) including special nuclear materials transported through a control zone. The monitor is used to detect RNM in vehicles and luggage, as well as on pedestrians and their possessions. The monitor is not intended to be operated in explosion and fire hazard zones. The monitor is not a measuring instrument. The monitor is suitable both for indoor and outdoor installation. It may be used at various check points: vehicular, railway and pedestrian border crossings and customs check points, check points of nuclear power plants (NPPs), nuclear industry facilities, nuclear waste disposal and storage sites, check points in banks, offices, etc. The monitor is designed to work under the following conditions: ambient temperature range.. from minus 30 up to +50 С relative air humidity at 40 C and colder... up to 100 % atmospheric pressure from 84 up to kpa 1.2 Delivery kit The monitor delivery kit is described in Table

5 Table 1.1 Name Designation Quantity Note Radiation Monitor РМ5000Р Radiation Monitor GDA detection assembly (GDA) Annunciator unit Occupancy detector Personal computer (PC) - 1 Operation manual User guide. Software for Radiation Monitor operation CD 1 Assembly kit - 1 Package - 1 Radiation Monitor РМ5000Р-01 GDA detection assembly (GDA) Supplied separately upon the request of the user Active pillar (with a controller) GDA1 detection assembly (GDA1) Passive pillar Annunciator unit Occupancy detector Personal computer (PC) - 1 Supplied separately upon the request of the user Operation manual User guide. Software for Radiation Monitor operation CD 1 - Assembly kit Package - 1-5

6 Table 1.1 continued Radiation Monitor РМ5000Р-02В GNDA3 detection assembly (GNDA3) Annunciator unit Occupancy detector Personal computer (PC) - 1 Supplied separately upon the request of the user Operation manual User guide. Software for Radiation Monitor operation CD 1 - Assembly kit Package Radiation Monitor РМ5000Р-03В GNDA3 detection assembly (GNDA3) GNDA2 Neutron-radiation detection assembly (GNDA2) Annunciator unit Occupancy detector Personal computer (PC) Active pillar: (with a controller) Passive pillar Supplied separately upon the request of the user Operation manual User guide. Software for Radiation Monitor operation CD 1 - Assembly kit Package Technical specifications The monitor at set speed detects the minimum quantities of nuclear and radioactive materials in the control zone (see Table 1.2), with 0.8 probability at confidence probability no less than false operation rate 1/1000 at natural gamma radiation background no more than 0.1 μsv/h and activates light (red light if a gamma radiation source is detected and blue light if a neutron radiation source is detected) and sound alarms. Note If γ-radiation background level is increased, the minimum detectable quantity of nuclear and radioactive substances must increase in background ambient dose equivalent rate. times, where *(10) gamma Quantity of false alarms is no more than 1/ The monitor registers gamma radiation. PC display indicates average count rate of impulses after the monitor is connected to PC. Sensitivity of each GDA, GDA1 gamma radiation detection assembly to gamma-radiation is given in Table 1.3. Sensitivity of each GNDA2 and GNDA3 gamma radiation detection assembly to gammaradiation is given in Table

7 1.3.4 Energy range of the registered gamma radiation is from 0.02 to 3.0 MeV The monitor registers neutron radiation. PC display indicates average count rate in cps after the monitor is connected to the PC. Average count rate of every neutron radiation detection unit (GNDA2, GNDA3) measured with the neutron radiation source 252 Cf enabling neutron/s flux is no less than 8 cps. The source is located at (1.5 ± 0.01) m distance from the point on the detection unit surface against the detector geometrical center Sensitivity drift of the monitor over height (vertical profile of the monitor) for 137 Cs and 252 Cf is no more than ± 40 % The operation modes of the monitor are as follows: - background registration mode; - detection mode; - management and control mode (information exchange) using PC In the background registration mode the monitor enables the PC to display the registration results and renews them at time interval no longer than 3 s. 7

8 Table 1.2 Model Parameters of Maximum the control zone speed, km/h * L x H, m 1x2 241 Am, MBq, (µci) 0.4 (11) 137 Cs, MBq, (µci) 0.08 (2) РМ5000Р 5 1,5x2 0,7 0,13 (19) (3.5) 1x (3.2) (0.59) РМ5000Р ,5x (4.75) (0.88) 1x (20) (3.2) РМ5000Р-02В 5 1,5x (35) (5.6) 1x (5.5) (0.87) РМ5000Р-03В 5 1,5x (8.75) (1.3) * L passage width, H passage height of the control zone Minimum detectable quantities of the radionuclide and radioactive materials 60 Co, MBq, (µci) 0.04 (1.1) 0.07 (1.9) (0.32) (0.475) 0,65 (1.8) 0.11 (3) (0.47) (0.71) 133 Ba MBq, (µci) 0.05 (1.25) 0.08 (2.16) (0.36) 0.02 (0.54) (2) 0,13 (3.5) 0.02 (0.55) 0.03 (0.8) 238 U, g 235 U, g 239 Pu, g , Pu, g (4 cm Pb) 252 Cf, neutron/s Position of the detection units Type of the registered radiation - - G - - G G-N G-N 8

9 Table 1.3 Sensitivity of each GDA, GDA1 detection assembly to gamma-radiation, no less than Source (included into РМ5000Р and РМ5000Р-01 monitors) At 1.5 m distance (cps)/mbq (cps)/(nsv/h) 241 Am Co Cs Co Ba Table 1.4 Sensitivity of each GNDA2. GNDA3 detection assembly to gamma-radiation, no less than. Source (included into the РМ5000Р-02В and РМ5000Р-03В monitors) At 1.5 m distance (cps)/ MBq (cps)/( nsv/h) 241 Am Co Cs Co ,5 133 Ba The monitor enters detection mode by a command from the occupancy detector. Detection results in this mode are updated on the PC every 3 s or less The monitor enters management and control mode by a command from PC. In this mode, the monitor enables the user to change the set parameters as well as data read-out from the controller of the monitor The monitor has a further function a continuous measurement function (Long dwell scan). The function is meant to analyze a nonmoving object in the control zone. Continuous measurement is initiated by a command from the operator. The monitor working with this function does the following: - calibration measurement to detect gamma- and neutron background level; - main measurement to analyze an object. Operator sets measurement time within from 10 to 600 s intervals. The monitor updates intermediate measurement results on the PC s LCD every 3 s or less. The measurement results will be displayed after the calibration or main measurement is completed Monitor PC connection is enabled through the Ethernet port by means of a cable up to 100 m in length If any detection assembly registers background value beyond the upper or lower thresholds, light alarms are triggered (yellow light - gamma background, white light neutron background) and a message on the background increase/decrease is indicated on the PC display The monitor performs according to its technical specifications stated in the present manual, once the time allowed for setting an operation mode (equal to 5 min after the monitor is turned ON) is up. 9

10 Additional change of sensitivity of each gamma-detection assembly (GDA) or count rate of each neutron radiation detection assembly (NDA) during gamma- and neutron radiation registration is no more than ± 15 %: - when ambient air temperature changes from minus 30 to +50 С; - at ambient air relative humidity 100 % at 40 С and colder, without condensation; - at exposure of sinusoidal vibration within from 10 to 55 Hz frequencies range Instability of the monitor count rate readings in the background registration mode during continuous 24 hour operation (using AC power supply) and during 8 hour operation period (if battery powered) no more than 5 % In the detection mode the monitor with GNDA doesn t trigger the neutron alarm indicating detection of a neutron source when a 60 Со or a 137 Cs gamma source producing 100 μsv/h dose rate in the monitor s geometric center, is transported through the control zone The monitor stores the following information (with date and time): - when the monitor is On; - background values (in set time interval); - tamper condition; - alarm events, including readings of each detection assembly and background values of each detection assembly, that triggered initiating the alarm; - background values from each detection assembly when these values exceed upper or lower background threshold levels; - profile (after alarm, if ON). The monitor provides accumulation of information (without date and time) on the monitor s switching off events The monitor is resistant against climatic effects under the following environmental operating conditions: - ambient air temperature range: from minus 30 up to 50 С; - relative humidity: 100 % at 40 C and colder, no moisture; - atmospheric pressure from 84 до kpa The monitor is resistant to sinusoidal vibrations within the frequency range from 10 to 55 Hz and shift amplitudes for those below the cross-over frequency 0.35 mm The monitor corresponds to IEC :2005, IEC :2006, EN :2005 electromagnetic compatibility standards: - the monitor is resistant to industrial magnetic fields of up to 400 A/m, performance criterion А; - the monitor is resistant to electromagnetic fields (test level 4) of 30 V/m intensity in the frequency range from 80 to 1000 МHz, and 30 V/m intensity in the frequency range from 800 to 960 МHz and from 1.4 to 2.5 GHz (generated by digital radio phones), performance criterion А; - the monitor is resistant to electrostatic discharges, test level 3 according to IEC :2008 (8kV air discharge, 6 kv contact discharge), performance criterion В; - the monitor is resistant to nanosecond pulse interference with the amplitude up to 2 kv arising in the power line, test level 3 according to IEC :2006 standard, performance criterion А; - the monitor is resistant to nanosecond pulse interference with the amplitude up to 1 kv arising in the input-output circuits according to IEC :2006 standard, test level 3 performance criterion А; 10

11 - the monitor is resistant to microsecond high-energy pulse interference with the amplitude up to 2 kv arising in the power line according to IEC :2008 standard, test level 3 performance criterion A; - The monitor is resistant to electromagnetic interference from radio transmitting emission within the frequency range from 150 khz to 80 МHz, test level 3 performance criterion A (according to IEC :2008 standard), performance criterion А; - the monitor corresponds to ЕN 55022:2010 (class B) standard by level of the radiated radio Protection class of the enclosures of the monitor s detection assemblies is IP Mean time between failures is no less than hours Average service life of the monitor is no less than 8 years Average recovery time for the monitor is no more than 60 min In the shipping package the monitor is resistant to: 1) ambient air temperatures from minus 50 up to +50 C; 2) relative ambient air humidity 100 % at +40 С; 3) vibration (within the 10-55Hz frequency range and shift amplitude for the frequencies below the 0.35 mm shift frequency); 4) shocks with 98 m/s 2 acceleration and duration of shock pulse 16 ms with the number of shocks for every direction at 1000 ± Overall dimensions of the monitor components are presented in Appendix А Maximum weight of the monitor depending on the delivery kit should be within the limits listed in Table 1.5. Table 1.5 Model Designation Weight, kg PM5000Р PM5000Р PM5000Р-02В PM5000Р-03В Maximum weight of the monitor s components: - GDA 120 kg; - GDA kg; - GNDA2 130 kg; - GNDA kg; - annunciator unit 2.0 kg; - occupancy detector assembly 0.5 kg The monitor is powered by: - from 115 to 230 V industrial AC network (from 85 to 264 V range) with from 50 to 60 Hz frequency; - built-in accumulator battery, 12 V DC (back-up). The power supply unit generates output voltage within the from 13.5 to 14 V range Monitor power consumption is no more than 60 V А. 11

12 Accumulator battery enables continuous working of the monitor during 8 hours (no less than 8 hours) As regards safety requirements, the monitor conforms to the regulations of IEC :2001 MOD (protection class I). The monitor belongs to equipment permanently connected to the power supply network, installation category (overload category) III according to IEC : Electric insulation of the assembly power supply circuits insulated from the body with 230V nominal voltage carries the load of the testing voltage of almost sinusoidal form of Hz frequencies range for 1 min: V under normal conditions; V under upper value of relative humidity Electric resistance of the assembly s power supply circuits is no less than: - 20 MΩ under normal climatic conditions; - 5 MΩ under upper working temperature value; - 1 MΩ under upper value of working relative humidity Electrical resistance between the earthing terminals of the detection assemblies and their cases is no more than 0.1 OΩ. 12

13 1.4 Monitor design and operation General The monitor is a stationary system that consists of independent assemblies connected with cables. Location of the blocks depending on the delivery option is given in Figures L width of the control zone (no more than 1.5 m); 6 occupancy detector; 7 annunciator unit. Figure 1.1 Location of РМ5000P and PM5000P-02B in the control zone 13

14 L width of the control zone (no more than 1.5 m); 6 occupancy detector; 7 annunciator unit. Figure 1.2 Location of РМ5000P-01 and PM5000P-03 in the control zone The monitor provides continuous 24-hour personnel-free operation In case of power failure the monitor is automatically powered by the built-in accumulator battery and performs its functions for at least 8 hours. The accumulator battery is charged automatically after AC power is restored Monitor configuration The main components of the monitor are as follows: - gamma detection assembly (GDA) and/or gamma-neutron detection assembly (GNDA) depending on the delivery option; - occupancy detector unit (OD); - sound and light alarm assembly (SLAA); - video camera (supplied by separate order). 14

15 Gamma radiation detection unit (GDA). Two types of GDA are used in the assembly: GDA and GDA1. The structural scheme of GDAs is given in Figures , and location schemes of GDA components are given in the Appendix B, Figures B.1. B.2. Each GDA includes: procession unit G (BО-G), scintillation unit (SU) and tamper detector (TD). GDA being the controlling unit of the monitor includes as well: controller (C); load switching module (LSM); power supply unit (PU) and accumulator battery (AB) Scintillation unit is made on the basis of the organic plastic scintillator with cm 3 sensitive volume in GDA, GDA1. The scintillation unit includes a photoelectric multiplier. To decrease the influence of natural gamma background the plastic scintillator is covered with protection lead screens (three sides except the face side). The scintillation unit transforms the gamma quantum energy into electrical impulses which are further applied to the signal amplifier input BO-G includes the following: - high voltage unit (HVU). HVU generates 1100 V high voltage used to power the scintillation unit photoelectric multiplier; - signal amplifier (SA). SA amplifies and forms the signals coming from the scintillation unit photoelectric multiplier output into the signals of quasi-gaussian form; - control unit (CU). CU processes signals coming from SA, OD and tamper detector and sends them every 0.2 s (discretization interval) to the Controller in the GDA by the RS 485 serial interface. CU as well switches SLAA on the command from the Controller Controller (C) included into GDA does the following: - calculates (according to the introduced algorithm) background values, operation threshold and (if the detection conditions are met) generates signals to be applied to SLAA; - stores information on the occurring events in the memory: Monitor switching On/Off, opening the GDA doors, background values (at set time interval), Monitor detection events; - indicates on the controller indicator information given in the Table 1.6. Table 1.6 Indication Parameter name Comments CAL Calibration GDA calibration to the gamma radiation background level AL.G Response Sound and light alarms are activated if gammaradioactive substances are detected in the monitor control zone Occ. Occurrence (presence) Tested object presence in the monitor detection area and switching to the detection mode LO G Hi G Low gamma background level High gamma-background level The gamma background level gets lower (screening of GDA) than permissible level in the gamma background registration mode The gamma background level gets higher (GDA is contaminated with radiation) than permissible level in the in the gamma background registration mode Nor Normal Normal operation of the monitor in the gamma background registration mode In the background registration mode, the controller processes signals coming from BO-G, and calculates gamma radiation background (count rate is calculated in pulses per second). Count rate values are stored in the controller and used to calculate corresponding threshold values, they being further applied while the monitor is entering the detection mode. In the monitor detection mode the controller: 15

16 - does not take the account of count rate values for the current discretization interval (0.2 s) while calculating the background; - starts calculation of quantity of the impulses coming from GDA every 0.2 s; - compares calculation results to the T R threshold values. To do it: the T R threshold value is calculated by the background value B using the entered parameters N I ( quantity of intervals ) and n coefficient (sigma) TR = 0,2 B N I + n 0, 2 B N I. (1.1) Current count rate values are calcualted every 0.2 s by the moving-average method. At that the data recieved during N I discretization intervals (every by 0.2 s) will be taken into account. Calculations are done for signals from the scintillation unit of every GDA and sum of the signals of all switched GDAs. If the T R threshold is exceeded, controller sends a corresponding signal to SLAA. Controller receives/transfers information from/to the PC Power supply unit transforms mains voltage power (~ V) into constant voltage 12V and powers all the modules of the detection assemblies. Power supply unit voltage is applied to the load switching module Load switching module controls power voltage of all the modules. The lead-acid storage battery (AB) powers the modules if there is a short-time emergency shutting down of the mains power. Since the AB depletion is impermissible, the load switching module will completely switch the monitor off after the voltage gets lower than 10.5V (permissible level) AB powers the monitor if there is no mains power. AB enables continuous operation of the monitor during no less than 8 hours Gamma neutron detection unit (GNDA). Two types of GNDA: GNDA2 and GNDA3 are used in the assembly. Structural schemes of GNDAs are presented in Figures Every GNDA includes procession units (N and G) BO-N, BO-G, scintillation unit (SU), neutron detector (ND) and tamper detector (TD). GNDA3 acting as control units in the assembly as well includes: controller (C); load switching module; power supply unit (PU) and accumulator battery (AB) Sensitive volume of the scintillation unit is 6600 cm 3 in GNDA2, GNDA The neutron detector is based on the one solid-state detector ( 10 B/ZnS(Ag)) in a retarder polyethylene chamber. 16

17 V To GDA1 Power supply unit (PU) /12 V U power Load switchin g module (LSM) 12 V 12V Accumula tor battery (AB) RS 485 Procession unit G (BО-G) Scintillation unit (SU) To PC (LAN) To GDA1 RS 485 Controller Tamper detector (TD) Occupancy detector (OD) Sound and light alarm assembly (SLAA) Figure 1.3 Structural scheme of GDA 17

18 from GDA U power from GDA RS 485 Procession unit G (BО-G) Scintillation unit (SU) Tamper detector (TD) Occupancy detector (OD) Figure 1.4 GDA1 structural scheme 18

19 GNDA2 from GNDA3 U power Procession unit G (BО-G) Scintillation unit (SU) from GNDA3 RS 485 Procession unit N (BО-N) Neutron detector (ND) Tamper detector (TD) Occupancy detector (OD) Figure 1.5 Structural scheme of GNDA2 19

20 V To GNDA2 To PC (LAN) To GNDA2 RS 485 GNDA3 Power unit (PU) /12 V Controller (C) U power RS V 12V Load switchin g module (LSM) Procession unit N (BО-N) Procession unit G (BО-G) Accumulator battery Neutron detector (ND) Scintillation unit (SU) Tamper detector (TD) Occupancy detector (OD) Sound and light alarm assembly (SLAА) Figure 1.6 Structural scheme of GNDA BO-N does the following: Processes signals coming from ND, OD, and TD, and sends them every 0.2 s via RS485 interface to the controller in GNDA Controller included into GNDA3 does the following: - calculates (according to the set algorithm) background values, operation threshold and generates signals if the operation condition is met. These signals will be sent to PC; - stores information on ongoing events in the memory: switching the assembly on/off, tamper of BDN doors, background values, monitor detection events; - indicates information according to Table

21 Table 1.7 Indication Parameter name Comment CAL Calibration Monitor is being calibrated to the gamma- and neutron background AL.G Detection Sound and light alarms are activated if gammaradioactive substances are detected in the monitor control zone AL.n Detection Sound and light alarms are activated if neutron radioactive substances are detected in the monitor control zone Occ. Occupation Detection of the controlled object in the control zone and switching on the detection mode LO G LO n Hi G Hi n Low level of gammabackground The gamma-background level gets lower (GDA is shielded) than allowed level in the gamma- background registration mode Low level of neutron The neutron background level gets lower than allowed background level in the neutron background registration mode High level of gammabackground contaminated with radiation) than allowed level in the The neutron background level gets higher (GDA is gamma-background registration mode High level of neutron background The neutron background level gets higher (NDA is contaminated with radiation) than allowed level in the neutron background registration mode Nor Normal Normal operation of the assembly in the neutron background registration mode Occupancy detector (OD) is a functionally complete and packaged assembly. The OD is designed to detect the presence of the object in the monitor control zone. The occupation is detected through the modification in the infrared picture structure that is formed with the objects in the control zone. OD can be located on the left as well as on the right side of the monitor Sound and light alarm assembly SLAA (light column) is used to produce light and sound alarm in cases of the monitor response in the detection mode ( ), as well as to produce light alarm when count rates registered by the detector assemblies exceed upper or lower threshold limits (chapter 10). Annunciator unit is equipped with red and yellow lights. SLAA is additionally equipped with blue and white lights for РМ5000Р-02В and РМ5000Р-03В models. If there is and object with radioactive and (or) nuclear substances in the control zone, then the alarm light will be red (a gamma source is detected) and blue (a neutron source is detected). Signals will be stopped after 5 s (nearly) after object leaves the control zone. If background count rate values registered by the detection units exceed the upper or lower background levels (chapter 10), the annunciator unit will light a yellow light (gamma-background) or white light (neutron background) PC is used for remote configuration of the monitor parameters and operation modes, as well as for reading information from the monitor operation memory. The monitor is connected to the PC by the LAN local network (Ethernet) by means of a cable up to 100 m long. Detailed information on working with the monitor and PC are given in the user guide on the supplied CD. 21

22 1.4.3 Operation modes The operation modes of the monitor are as follows: - background registration; - detection; - management and control (information exchange) using PC Background registration mode. The monitor operates in this mode when the control zone is not occupied. The monitor will automatically switch to the background registration mode after calibration or switching on or after detection mode exit. The monitor in the background registration mode does the following: - registers and indicates on the PC the gamma radiation background count rate; - indicates current state of the monitor (normal operation or detection unit tamper condition); - stores current events (monitor on/off; detection unit tamper condition; background count rate of the detection unit- at set time intervals) Detection mode. The monitor automatically enters this mode after the Occupancy detector(s) produces a signal confirming that the control zone is occupied. In the detection mode the monitor does the following: - compares in accordance with the operation algorithm the results of current measurement of count rate with a threshold value; - generates alarm signals in case of a threshold exceeding; - stores information on alarms (date, time, detection unit count rate, gamma and neutron radiation background). Alarm signals of the monitor are audible and light (red) signals generated by SLAA if the monitor detects the presence of radioactive and/or nuclear materials in the control zone. Alarm signals stop approximately in 2-10 s after the object leaves the control zone and the Occupancy detector gives a corresponding signal; the monitor reenters the background registration mode. If the thresholds are not exceeded, then the alarm signals will not be generated. The monitor will return to the background registration mode after the object leaves the control zone Management and control mode Management and control mode is implemented by means of the PC and enables user the following: changing operation parameters and functions of the monitor: - connection and disconnection of the detection unit; - lower and upper thresholds of the comparators; - operation threshold setting parameters; - upper and lower level of the background count rate; - quantity of 0.2 s intervals which are used for calculations in the detection mode; - duration of a view before and a view after ; - real date and time; radiation situation monitoring of the control zone displayed on the PC LCD: - on-line indication of the detection unit count rate of the assembly; - indication of the current operation mode of the assembly; reading information to the PC, the information is read from the non-volatile controller memory: - count rate value of background at time intervals (set in parameters); - time and date of switching Monitor On/Off; - time, date, current GDA background count rate value at which the alarm occurred; - time, date, count rate value which caused the alarm; 22

23 - time, date, current background count rate value if the set the set upper (Hi) or lower (LO) limits of every GDA count rate are violated; - tamper events of the detection assemblies doors. See detailed information on the control and management mode in the user Guide on the supplied CD. Detection mode is not available when operation parameters and settings of the monitor assembly are being edited, i.e. there is no control over movement of radioactive and nuclear materials. 23

24 2 Designated usage 2.1 Instructions on installation, start and regulation General notes Only manufacturer representatives or properly trained persons (by the manufacturer representatives) are allowed to make installation, start up and regulation works. Neither Monitor nor its units must be additionally configured after installation Location requirements. User determines the monitor installation site. However, the following conditions should be met: - all the objects (pedestrians, luggage, vehicles) being under control should pass though the control zone; - observe all measures (organizational or administrative measures) enabling movement of the controlled objects through the monitor control zone without stop in the control zone. FAILURE TO MEET THIS REQUIREMENT WILL LEAD TO CONSIDERABLE INCREASE OF FALSE ALARM CASES! The monitor must be installed onto a concrete floor indoors or onto special concrete basement (basement) Protective guard (fence) For monitor damage control it is recommended to fence an installation. Fencing should be strong enough to protect the monitor body from mechanical impacts. The fence should not interfere with the door opening Requirements to installation site Preparatory construction-and-assembling operations should be done at the site prior to monitor installation Safety provisions Electro security measures should be taken while power cable ( V) mounting and connection as well as while adjustment and testing activities implementation. The monitor is related to the equipment permanently connected to the power supply network of the mounting category (overload category) III Getting ready for installation Preparatory construction-and-assembling operations Preparatory construction-and-assembling operations should be performed by a user prior to monitor installation. As a rule the hanging tube for cable is mounted at height no less than 2 m if the monitor will be used for pedestrian control. The monitor being installed on the concrete foundation, both conduit ends should crop it up under the detector assemblies. As regards its mechanical strength and frost-resistance, concrete mark should be chosen with the account of the operating conditions. While construction-and-assembling works, additional ground loop should be prepared in accordance with the present technical and legal texts and national standards. The following can be used for earthing: - existing ground wires; - direct buried metal water pipes and casing pipes of the water wells; - metallic and reinforced concrete (earth conductor is welded) building structures with good ground. ATTENTION! Do not use gas pipes and pipes with flammable liquids for earthing. 24

25 If a ground bus is not available, man-made ground wires should be made, e.g.: - steel bars, at least 10 mm; - steel rectangular cross-section strips or angle bars with wing width at least 4 mm; - pipes having wall width at least 3.5 mm. Earth-contacting ground wires surfaces should not have paint-and-lacquer coating. Below please find recommended variants of man-made ground wires with local soil frost penetration up to 0.7 m: - deepen 3 bars (no less than 1.5 m in length) into the earth for their whole length right near the foundation of the monitor assembly. Distance between bars shall be no less than 1 m; - connect deepened bars with wire, at least 6 mm (or with the strip 3x25 mm, 4x25 mm) by welding; - measure the ground wire resistance (resistance to current spreading) with the earthometer of the МС-08 type. It should not exceed 30 Ω. Weld the earth cord to the bars. Use the wire steel 3 6 or stripes 3x25 mm made from annealed low-carbon steel as the cord. Zinc-coated cord is also allowed. Supply the ground to the center of the upper foundation surface of the monitor assembly. The wire should end with the welded steel plate (approximate dimensions 50x50x3 mm) with the 8.5 mm hole for further connection with the screw M Unpacking instructions and delivery kit check-up Monitor should be unpacked at the installation site. Each detector assembly is shipped individually wrapped. The monitor delivery kit is given in chapter 1.2 of the present manual and in the packing list together with the assembly kit. Monitor assemblies should be unpacked as follows (Figure C.1. Appendix C): - check seals to be undamaged; - remove the seals; - release four latches, position 3; - remove the lid moving it up; - remove the polyethylene case; - unscrew six М6 nuts, position 1; - take the block off the pallet, moving it up, position 7; - open the package with assembly kit and tools; - disassemble brackets, position 2; - place plastic caps (6 pcs.) (included into the assembly kit) into the assembly brackets openings External examination The monitor being unpacked, immediate external examination should be performed. Monitor assemblies should not have any mechanical damages. To examine modules and components inside the detection assemblies, the door should be opened with a special wrench (included into the delivery kit). All modules and assemblies of the monitor should be firmly fixed Monitor installation The monitor must be installed on a concrete floor in the room or onto a special concrete basement as follows: - assemble the basement (the basement is delivered nonassembled); - using the perforator, drill holes in the concrete floor to mount the monitor base; Holes coordinates are presented at Fig. D.1 Appendix D; - fix the base to the concrete floor with anchor bolts; - using the lifting gear, mount the detector assembly at the base and fix it with bolts, included into the base delivery kit; 25

26 - set the annunciator unit (position 7, Appendix B, Figure B.1) and connect it according to the electric schematic diagram (Appendix E, Figure E.1) Connect the monitor to the additional ground loop ( ). To do this, with the screw and the screw nut M8 ensure reliable connection of the monitor ground bus (CABLE N3) with the supplied outlet of the additional ground loop. Wire termination point is shown in Figure B All cables are recommended to be supplied through the bottoms of the detector assemblies, each assembly body being equipped with special cable entries (Figure D.1). Communication cables between the assemblies located at either side of the control zone shall be laid in a dedicated channel (pipe). Cable laying is performed according to schematic circuit diagrams, Appendix E, Figure E.1). Cables should be connected between the blocks for the PM5000P-01 and PM5000P-03B models. Connection should be made as follows: 1) Connect to the system ground: - cables N2, N3 (Figure E.1); 2) Connect the communication cable N1 between the blocks (Figure E.1) as follows: - white wire (+12 V) connect to the terminal 12 of the connector X2 (X2.12) of the detection assembly (position 5 - (Figure B.1 - B.4); - brown wire (GND) connect to the terminal 15 of the connector X2 (X2.15) of the detection assembly (position 5 - (Figure B.1 - B.4); - green wire (D+) connect to the terminal 1 of the connector X2 (X2.1) of the detection assembly (position 5 - (Figure B.1 - B.4); - yellow wire (D-) connect to the terminal 2 of the connector X2 (X2.2) of the detection assembly (position 5 - (Figure B.1 - B.4); - cable screen E (black wire) connect to the terminal 19 of the connector X2 (X2.19) of the detection assembly (position 5 - (Figure B.1 - B.4); - secure the cables beyond the external insulation by means of the coupling RCV-100 to the bracket fixing the wires located near the ground terminal (position 20, Figure B.1 - B.4) To ensure the monitor power supply ~ V, Hz, a separate flexible three-wire cable with a wire section mm 2 (phase L, neutral N, ground E) should be led from the distribution board to the monitor. Recommended power cable type for monitor connection is LAPP KABEL OLFLEX CLASSIC 100 U0/U: 300/500V 3 X 2.5 P/N Another cable with similar specifications is also possible. Note Power cable is not included into the delivery kit. A separate double-pole automatic network switch (power automaton) for 10 A current should be installed into the distribution board. Recommended type is EKF ВА type B 10А, mcb b or Circuit Breaker 5SX Siemens. Different automatic switch with similar specifications is also possible. ATTENTION! Cable may be connected to the distribution board only after being connected to the monitor. Prior to that, make sure the distribution board is de-energized. Welding operations on the assembled and powered-up monitor, as well as within 10 m from the monitor connected to the mains, are strictly prohibited. Connect power cable to the monitor. To do it: open the case door of the monitor. Insert the power cable through the cable entry inside the monitor. Cut the cable end providing minimum core length 150 mm. Connect yellow and green wire to the clamp (E) ground, blue wire to the clamp (N) neutral and brown wire of the power cable - to the clamp (L) phase of terminal block 1 (Figure B1). Fix the power cable with the external insulation, using the coupling CCRV-100. Connect the power cable to the distribution board. 26

27 Connect the PC to the NS205 commutator of the monitor (12 in the Figure B1) by means of the Ethernet cable Seal the cable ends with a neutral silicone sealer Guidelines for monitor turning on Before initial switch-on of the monitor, check wiring of the cables carefully, as it may have been damaged during transportation Connect the accumulator battery to the monitor. Observe the battery polarity. Connect the clamp with red wire to the (+) outlet of the battery, clamp with black wire to the (-) outlet of the battery Supply the power to the monitor (turn the automatic circuit breaker on at the distribution board). Green LED on the power unit (position 4, Figure B.1) will light on. Move the switch on the load switching module (position 15. Figure B.1) to ON position. Red LED on the load switching module will light on, if voltage is supplied and the power unit operates normally. The monitor display being ON, the controller screen (positions 9 and 10. Figure B1) will display the software version, then the monitor will switch to the calibration mode and CAL will be displayed. Calibration being completed, the monitor will enter the background mode and the display will show nor. The monitor is ready for operation. Monitor enables round-the-clock work. 27

28 2.1.6 Troubleshooting The list of possible problems and their solutions are specified in Table 2.1. Table 2.1 Trouble Possible cause Solution The LED on the load switching 1 Power failure ~ V 1 Supply ~ ~ V voltage module is off when the switch is in ON position 2 The power supply unit is faulty 2 Replace the power supply unit. Repaired by the manufacturer 3 Load switching module failed 3 Replace the load switching module. No indication on the controller LCD when the load switching module is on and power supplied Low count rate of one or several GDAs or NDAs High count rate of one or several detection assemblies The monitor does not enter the detection mode when the controlled object moves through the control zone 1 Open circuit in the controller (12 V) Repaired by the manufacturer 1 Eliminate the defect 2 Controller failed 2 Replace the controller. Repaired by the manufacturer 1 The GDA shielding by 1 Eliminate shielding external shield 2 Discrimination levels for 2 Adjust the levels according to gamma or neutron radiation initial values indicated in Start-up are adjusted incorrectly certificate 3 Scintillation unit or neutron detector failed 4 Electronic modules of the monitor failed 1 The radiation source is in control zone. 2 Discrimination levels for gamma or neutron radiation are adjusted incorrectly 3 Scintillation unit or neutron detector failed 4 Electronic modules of the monitor failed Occupancy detector failed 3 Send scintillation block or neutron detector to be replaced by the manufacturer. 4 Replace the modules. Repaired by the manufacturer 1 Localize and remove the radiation source using the search radiometer. 2 Adjust the levels according to initial values indicated in Start-up certificate 3 Replace the scintillation unit or neutron detector. Repaired by the manufacturer 4 Replace the modules. Repaired by the manufacturer Replace the occupancy detector. Repaired by the manufacturer. 28

29 2.2 Working with the monitor Functionality check The daily functionality check is to be performed by the user. It is recommended to be performed by the personnel responsible for operation of the monitor once per shift. Follow the below-described procedure Inspect the monitor for mechanic damage In the background registration mode (PC is running) take the count rate readings from the PC display. At normal operation of the monitor count rate values should not differ more than ± from 40 to 60 % from the background count rate values, registered in the Start-up Certificate (Chapter 10 of the present manual) Initiate the occupancy detector by moving an object through the control zone. When the occupancy detector turns on the green LED will be on in the detector window. The PC will indicate Occ (Occupation) Check current time and date indicated on the PC. If the time differs from the current more than ± 5 min, it is necessary to enter the management and control mode (see comments on Software disc) and set an accurate time. The monitor is serviceable if it performs all functions given in Chapters If the monitor does not meet the requirements described in then do the following with the PC running: - enter the management and control mode and make sure that the set parameters correspond to those stated in the Start-up certificate (chapter 10); - if the background values are low: make sure the detection assemblies are not shielded; - if the background values are high: use the searching hand-held rate meter for detection of radioactive contamination of the control zone or a definite detector assembly. If the actions as stated in item are not successful, turn the monitor off and call the technical staff of the manufacturer or their representative Working in control mode Switch the PC of the monitor into the radiation environment monitoring mode (Online mode), see Chapter Detailed information on working with the PC is provided in the User's guide on CD (included into the monitor delivery kit) If an object with fissionable/radioactive material appears in the control zone, then the monitor will respond with audible and light alarm and alarm signal on the PC If alarm was actuated: a) remove the object being controlled from the control zone for a distance at least 5 m from the pillars till the alarm is over; b) pass the object through the control zone again; c) if the alarm being actuated repeatedly or passage of the object through the control zone is impossible, then the object should be examined with a search gamma or gamma-neutron instrument (e.g. РМ1710GNА, PM1703MO-1, PM1703GN or radiation detectors PM1401K-3 / РМ1410); d) in cases when nuclear and fissionable materials are not detected upon re-examination, the alarm is considered false. The presence of two or more objects within the control zone is not allowed. Note Acceptable rate of false alarms is presented in Chapters

30 3 Technical maintenance 3.1 Technical maintenance of the monitor General notes The monitor maintenance is performed for the purpose of ensuring its constant serviceability and reliability for a long period of exploitation. Maintenance can be daily and preventive Safety provisions The monitor conforms to IEC :2001 (equipment of class I) as regards electrical shock protection. All procedures on set-up, calibration, repair, maintenance and verification that require use of radioactive sources should be performed in a strict accordance with sanitary regulations and radiation safety guidelines Routine technical maintenance Routine technical maintenance is performed by the personnel responsible for the operation of the monitor. This should include: - visual inspection of the monitor assemblies for mechanical damage; - optical occupancy detectors surface should be preserved clean; - remove dust and dirt from the surfaces of the monitor modules; - functionality check in accordance with Chapter Preventive maintenance Preventive maintenance should be performed by the technical personnel of the manufacturer or the specialists who has passed special training at the manufacturer. Preventive maintenance should be performed at least once a year (12 months) and includes: - procedures, performed according to routine daily maintenance; - checking the parameters and functions for their compliance with the values stated in the Start-up certificate, Chapter 10; - checking the monitor parameters and characteristics according to Chapter Technical maintenance of monitor modules Disassembly and assembly The disassembly of the monitor modules should be performed in the following order: 1) disconnect the monitor from AC; 2) disconnect the battery; 3) disconnect the wires from the module being replaced; 4) unscrew the fastening screws; 5) remove the module to be replaced. The assembly of the monitor s modules should be performed in the following order: 1) put new module in place; 2) tighten fastening screws; 3) connect the wires to the replaced module; 4) connect the battery; 5) connect the monitor to AC. 30

31 4 Verification test 4.1 Introduction Current verification method applies to РМ5000Р, РМ5000Р-01, РМ5000Р-02В, РМ5000Р- 03В radiation monitors. Verification test should be performed by the local division of metrological service of the State standard organization. Verification should be performed after repairs and every 12 months of the monitor use and storage. 4.2 Procedures and tools During verification, the procedures below should be followed and using verification tools with parameters stated in Table 4.1. Table 4.1 Procedure External examination Testing: - functionality check; - capability to detect radioactive materials while the object is in the control zone Testing monitor sensitivity to gammaradiation and registration of average count rate of impulses coming from a neutron source Paragraph No. (item) Reference and auxiliary measurement tools and materials Gamma-radiation 137 Cs source with 210 kbq activity Gamma-radiation source 137 Cs, with 210 kbq activity. Neutron radiation source 252 Cf enabling neutron/s flux. Uncertainty is no more than 8 % Barometer. Scale is 1 kpa. Measurement range is from 60 to 120 kpa Thermometer. Scale is 0.1 С. Measurement range is from 10 to 30 С Humidity meter. Measurement range is from 30 to 90 %. 4.3 Safety requirements The following safety requirements should be met during verification testing: - all procedures that require radioactive sources must be performed according to radiation safety and sanitary regulation norms; - verification procedures should be referred to as special working conditions. 4.4 Test conditions Verification must be performed under the same environmental conditions as at the monitor installation site if the conditions correspond to monitor operation conditions. 4.5 Test background Prior to testing study this operation manual (Chapter 2) and prepare the monitor for operation according to the manual. 31