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ECOTEST MKS-05 TERRA Operating Manual

Other manuals for MKS-05 TERRA: Operating Manual
Manual is about: dosimeter-radiometer

Summary of MKS-05 TERRA

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    Mks-05 “terra” dosimeter-radiometer operating manual ВІСТ.412129.006-04 НЕ.

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    1 contents 1 description and operation of the dosimeter..........................................4 1.1 purpose of use.......................................................................................................4 1.2 technical specifications.....................................................

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    2 4 certificate of acceptance ............................................................................56 5 packing certificate ..........................................................................................57 6 warranty.....................................................................

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    3 this operating manual (hereinafter called the om) is intended to inform the user about the theory of operation and rules of application of the mks-05 “terra” dosimeter- radiometer. The manual contains all information necessary for proper use of the dosimeter and full realization of its technical p...

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    4 1 description and operation of the dosimeter 1.1 purpose of use the mks-05 “terra” dosimeter-radiometer (hereinafter called the dosimeter) is designed to measure ambient dose equivalent (de) and ambient dose equivalent rate (der) of gamma and x-ray radiation (hereinafter called photon-ionizing rad...

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    5 1.2 technical specifications 1.2.1 key specifications are presented in table 1.1. Table 1.1 – key specifications name unit of measurement standardized values according to the technical specifications 1 2 3 measurement range of photon-ionizing radiation der μsv/h 0.1 - 9999 main relative permissibl...

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    6 table 1.1 (continued) 1 2 3 measurement range of photon-ionizing radiation de msv 0.001 - 9999 main relative permissible error limit of photon- ionizing radiation de measurement with 0.95 confidence probability % ± 15 energy range of registered photon-ionizing radiation mev 0.05 – 3.00 energy depe...

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    7 table 1.1 (continued) 1 2 3 anisotropy of the dosimeter at gamma quantum incidence at solid angle of 30 o to 150 o relative to the main axis of the detector and from the side of the main measurement direction for: - 137 cs and 60 co isotopes - 241 am isotopes note. Anisotropy charts are given in a...

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    8 table 1.1 (continued) 1 2 3 measurement range of surface beta- particles flux density part./(cm 2 ·min) 10 - 10 5 main relative permissible error limit of beta-particles flux density measurement with 0.95 confidence probability % 200 20 , β φ is a numeric value of the measured surface flux density...

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    9 table 1.1 (continued) 1 2 3 measurement range of de accumulation time with measurement resolution of 1 min h 100 absolute permissible error limit at operator’s de accumulation time measurement during 24 hrs min ± 1 time of the dosimeter operating mode setting, not more than min 1 battery life (aaa...

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    10 table 1.1 (continued) 1 2 3 general operating supply voltage of the dosimeter from two batteries v 3.0 useful current of the dosimeter at operating supply voltage of 3.0 v under natural background radiation and switched off display backlight, not more than ma 0.5 additional permissible error limi...

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    11 table 1.1 (continued) 1 2 3 mean time to failure, not less than h 6000 average life of the dosimeter to the first major overhaul, not less than h 10000 average service life of the dosimeter, not less than year 6 average shelf life of the dosimeter, not less than year 6 dimensions, not more than m...

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    12 1.2.4 threshold level values of surface beta-particles flux density in the range of 0 to 9999·10 3 part./(cm 2 ·min) with discreteness of 0.01 10 3 part./(cm 2 ·min) are programmed in the dosimeter. 1.2.5 the dosimeter sends a one-tone audio signal if gamma quantum or beta-particle gets to the de...

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    13 - temperature from - 20 to + 50 oc; - relative humidity up to (95±3) % at + 35 oc; - atmospheric pressure from 84 to 106.7 kpa. 1.2.9 the dosimeter is resistant to the following external factors: - high frequency sinusoidal vibration in the range of 10 - 55 hz; - shocks with a shock pulse duratio...

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    14 1.3 delivery kit 1.3.1 the delivery kit consists of the dosimeter and the maintenance documentation presented in table 1.2. Table 1.2 - delivery kit of the dosimeter type item quantity notes bict.412129.008 mks-05 “terra” dosimeter-radiometer 1 pc. Bict.412129.006-04 he operating manual 1 pc. Bic...

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    15 1.4 design and theory of operation 1.4.1 general information the dosimeter is a mono-block construction with a built-in detector of gamma and beta radiation, a printed-circuit board equipped with a circuit of the anode voltage formation, digital processing, control, and indication, and batteries....

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    16 - measurement of de accumulation time and real time; - generation and stabilization of the detector’s anode voltage; - operating modes control; - measurement results indication. The power for operation is supplied by two batteries of aaa type. 1.4.2 design description the dosimeter is designed as...

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    17 the circuit board (10) is located inside the unit, where all elements of the electric circuit, with an exception of a loudspeaker, are located (5). The loudspeaker is fixed to the upper cover (1) and electrically connected with the circuit board (10) by spring contacts. The latter (10) is screwed...

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    18 1.5 labeling and sealing 1.5.1 the upper cover of the dosimeter is inscribed with the name, the symbol of the device, the trademark of the producer, the ingress protection rating of the dosimeter, and the approval pattern of measuring instruments. A factory number and a manufacture date are inscr...

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    19 2 proper use of the dosimeter 2.1 operating limitations operating limitations are presented in table 2.1. Table 2.1 - operating limitations operating limitations limitation parameters ambient air temperature from - 25 to + 50 o c relative humidity up to 95 % at + 35 o c, non-condensing photon-ion...

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    20 2.2 preparation of the dosimeter for operation 2.2.1 scope and order of external examination 2.2.1.1 before using the dosimeter, unpack it and check if the delivery kit is complete. Examine for mechanical damages. 2.2.2 rules and order of examination for operational readiness 2.2.2.1 examine the ...

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    21 2.2.3 guidelines on switching on and testing the dosimeter 2.2.3.1 prepare the dosimeter for operation by doing the following: - unpack the dosimeter; - open the battery compartment and insert two batteries of aaa type, observing the polarity. 2.2.3.2 press shortly the mode button to switch the d...

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    22 2.2.3.4 press shortly the mode button and make sure the dosimeter has entered the mode of surface beta-particles flux density measurement, which is indicated by the blinking light- emitting diode opposite the appropriate mnemonic symbol below the lcd, and by audio signals following the detection ...

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    23 2.2.3.7 hold the mode button pressed for six seconds to switch the dosimeter off. 2.2.4 list of possible troubles and troubleshooting 2.2.4.1 the list of possible troubles and troubleshooting is presented in table 2.2. 2.2.4.2 at failure to eliminate the troubles presented in table 2.2, or at det...

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    24 table 2.2 - list of possible troubles and troubleshooting trouble probable cause troubleshooting 1 the dosimeter is not switched on after the mode button is pressed 1 the battery is discharged 2 no contact between the batteries and the battery compartment clamps 3 one of the batteries is out of o...

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    25 2.3 use of the dosimeter 2.3.1 safety measures during use of the dosimeter the dosimeter contains no external parts exposed to voltages hazardous for life. It is not dangerous for the service personnel, and is environmentally friendly. A special protection jacket is used to prevent accidental con...

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    26 - programming of audio alarm threshold levels of photon-ionizing radiation de; - surface beta-particles flux density measurement; - programming of audio alarm threshold levels of surface beta-particles flux density; - indication of operator’s de accumulation time; - indication and correction of r...

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    27 2.3.3.2 measurement of photon-ionizing radiation der the mode of photon-ionizing radiation der measurement is entered automatically after the dosimeter is switched on. The mode is indicated by the blinking light-emitting diode opposite the appropriate mnemonic symbol below the lcd. The results of...

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    28 consider the arithmetic mean of five last measurements after the lcd stops blinking as the der measurement result. Every registered gamma quantum will be followed by an audio signal. Measurement intervals and subranges will be set automatically, depending on the measured radiation intensity. Note...

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    29 to start programming, press the threshold button and hold it pressed (circa six seconds) until the low-order digit starts blinking on the lcd. Set the necessary value of the low-order digit by successive pressing and releasing the threshold button. Press shortly the mode button to program the nex...

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    30 when the threshold button is pressed for more than four seconds, the low-order digit starts blinking, indicating that a new threshold level value can be programmed. A two-tone audio signal indicates that the programmed der threshold level has been exceeded. Note. The der threshold level value of ...

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    31 a blinking light-emitting diode opposite the appropriate mnemonic symbol below the lcd indicates that the de measurement indication mode has been entered. Measurement units are expressed in msv. A comma after the first left digit will appear on the lcd when the dosimeter is switched on. The comma...

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    32 the value of the preset threshold level is fixed after all digits are programmed by short pressing of the mode button. To fix a new value of the threshold level, set all digits on the lcd by pressing the mode button, even if the values of the high-order digits are not changed. Double extinction o...

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    33 by the blinking light-emitting diode opposite the appropriate mnemonic symbol below the lcd. Measurement units are expressed in part./(cm 2 ·min). At first measure gamma background (for further automatic subtraction), and then measure surface beta-particles flux density. To do this, wait until th...

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    34 2.3.3.7 programming of audio alarm threshold level of surface beta-particles flux density programming of audio alarm threshold level of surface beta-particles flux density is performed in the mode of surface beta-particles flux density measurement and indication. To start programming, press the t...

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    35 press and hold the threshold button to check the value of the fixed threshold level of surface beta-particles flux density. The threshold level value will appear on the digital lcd in two seconds. When the threshold button is pressed for more than four seconds, the low- order digit starts blinkin...

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    36 it is indicated by blinking of all digits and a non-blinking comma between the two pairs of digits. The digits from the right to the left will indicate the following: the first digit indicates minutes; the second one - tens of minutes; the third one - hours; the fourth one - tens of hours. 2.3.3....

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    37 value of hours. Two digits on the left of comma start blinking at that. The hour value correction is performed likewise. Press shortly the mode button once again to exit the mode of real time correction. 2.3.3.10 switching audio signaling of registered gamma quanta and beta-particles on/off simul...

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    38 2.3.3.11 switching display backlight on/off at pressing any button of the dosimeter or changing the operating mode the display backlight is switched on for 5 seconds. Press shortly the threshold button to switch the dosimeter display backlight on without changing the operating mode. The display b...

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    39 table 3.1 - list of operations during technical maintenance tm type during list of operations everyday use periodical use (annually) during long-term storage o m i te m n o . External examination delivery kit completeness check operability check power supply switch off verification of the dosimet...

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    40 3.1.2 safety measures safety measures during tm fully comply with safety measures stated in item 2.3.1 of the present om. 3.1.3 maintenance procedure of the dosimeter 3.1.3.1 external examination external examination of the dosimeter should be performed in the following order: a) check the techni...

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    41 3.1.3.3.2 order of pre-repair fault detection and rejection use the following criteria to evaluate the necessity of sending the dosimeter for repair and type of repair: - for mid-life repair: a) deviation of parameters from reference values during the periodical verification of the dosimeter; b) ...

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    42 c) serious mechanical damages of the component parts that affect the security access to the dosimeter circuits. 3.1.3.4 power supply switch off power supply should be switched off each time the dosimeter is not in use for a long time. Do the following: - switch the dosimeter off; - open the lid o...

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    43 3.2 verification of the dosimeter the dosimeters should be tested after manufacture, repair or during maintenance (periodically, at least once a year). 3.2.1 verification operations during verification, the operations presented in table 3.2 should be performed. Table 3.2 – verification operations...

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    44 3.2.2 verification facilities the following measuring instruments and equipment should be used for verification: - testing equipment with standard sources of gamma radiation 137 cs; - flat standard sources on a hard pad, containing 90 sr + 90 y radionuclides; - low-active gamma radiation source 1...

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    45 - relative air humidity from 30 to 80 %; - atmospheric pressure from 86 to 106.7 kpa; - natural background level of gamma radiation not more than 0.30 µsv/h; - power supply voltage of (3.0± 0.2) v. 3.2.4 verification procedure 3.2.4.1 external examination during external examination the dosimeter...

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    46 3.2.4.2 testing switch the dosimeter on and program zero values of audio alarm threshold levels of each measuring channel. Afterwards switch on the mode of photon-ionizing radiation der measurement and place the dosimeter near the 137 cs gamma radiation source. Observe an increase of der readings...

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    47 perform five measurements of external background edr and register the received readings in the protocol. Place the holder together with the dosimeter in the position, where der from 137 cs source is 0.8 µsv/h. Perform five measurements of der. Register the received readings in the protocol. Calcu...

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    48 calculate main relative error of measurement in percentage. Place the holder and the dosimeter in the position, where der from the 137 cs source is 8.0 µsv/h. Perform five measurements of der, and register the received readings in the protocol. Calculate the der value in µsv/h according to the fo...

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    49 perform five measurements of der. Register the received readings in the protocol, and calculate the average value of der and main relative error of measurement in percentage. Place the holder and the dosimeter in the position, where der from the 137 cs source is 8·10 3 µsv/h. Perform five measure...

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    50 prepare the verification equipment for operation according to its operating manual. Fix the dosimeter in the holder so that the mechanical center of gamma beam coincides with the center of the detector. Place the holder and the dosimeter in the position, where der from 137 cs source is 80 µsv/h. ...

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    51 place the holder and the dosimeter in the position, where ambient der from 137 cs source is 8000 µsv/h. Fix the initial de value and simultaneously switch on the stop-watch. Register the de measurement results after 10 minutes (according to the stop-watch) of irradiation, calculate the main relat...

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    52 measure ambient gamma background with filter-covered window of the detector in the mode of photon-ionizing der measurement. Gamma background measurement is completed when the lcd stops blinking. Place the dosimeter with the open window above the 4co source surface, providing surface beta-particle...

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    53 calculate the average value of surface beta-particles flux density and the main relative error of measurement. Place the dosimeter with the open window above the 4co source surface, providing surface beta-particles flux density from 50000 to 100000 part./(cm 2 ·min), so that the work surface of t...

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    54 where β φ is a numeric value of the measured surface beta-particles flux density in part./(cm 2 ·min). 3.2.4.6 presentation of verification results 3.2.4.6.1 positive results of primary or periodic verification are registered as follows: 1) primary verification is registered in the “certificate o...

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    55 table 3.3 – primary verification of main specifications tested specification name standardized values according to the specifications actual value main relative error at measurement of photon-ionizing radiation dose equivalent rate, with 0.95 confidence probability, % 15+2/ ) ( h 10 , where ) ( h...

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    56 4 certificate of acceptance the mks-05 “terra” dosimeter-radiometer of bict.412129.008 type with _____________________________ serial number meets the ТУ У 33.2-22362867-006-2001 bict.412129.006 ТУ technical requirements, is tested and accepted for use. Date of issue ___________________ stamp her...

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    57 5 packing certificate the mks-05 “terra” dosimeter-radiometer of bict.412129.008 type with ___________________ serial number is packed by the pe “sppe “sparing-vist center” enterprise in accordance with the requirements specified in ТУ У 33.2-22362867-006-2001 bict.412129.006 ТУ. Date of packing ...

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    58 6 warranty 6.1 the warranty period of the dosimeter use shall terminate and be of no further effect not less than 18 months after the date of putting it into operation, and not more than 24 months after the manufacture date. 6.2 the warranty period of storage of the dosimeter is 6 months after it...

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    59 7 repair 7.1 in case of failure or troubles during the warranty period of the dosimeter, the user should contact the enterprise producer by e-mail (see below) to receive the address of the nearest service center: pe “sppe “sparing-vist center” tel.: (+380 32) 242 15 15; fax : (+380 32) 242 20 15;...

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    60 7.2 all claims are registered in table 7.1. Table 7.1 date of failure claim summary action taken note.

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    61 8 storage 8.1 the dosimeters should be stored in a packing box in heated and ventilated storehouses with air-conditioning at the ambient temperature from + 5 to + 40 °c and relative humidity up to 80 % at + 25 °c temperature, non-condensing. The storehouse should be free of acids, gas, vapors of ...

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    62 9 shipping 9.1 packed dosimeters may be shipped by any kinds of closed transport vehicles under the conditions with temperature limitation in the range of - 25 to + 55 оС, and according to rules and standards effective for each means of transport. 9.2 the dosimeters in shipping container should b...

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    63 10 disposal disposal of the dosimeter is performed in compliance with the general rules, i.E. Metals are recycled or melted, and plastic parts are dumped. Disposal of the dosimeter is not hazardous for service personnel, and is environmentally friendly..

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    66 appendix b 4 3 1 2 5 4 figure b.1 – front view of the dosimeter.

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    67 appendix b figure b.2 – rear panel with a removed lower cover.

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    68 notes.