RADIOACTIVITY DETECTOR RADEX RD1008 User manual 2011
The radioactivity detector RADEX RD1008 (hereinafter – the product) is designed to detect the presence of ionizing radiation and estimate the values of the ambient dose equivalent, the ambient equivalent of photon (gamma and X-ray) ionizing radiation dose rate and the flux density of beta particles.
CONTENTS 1. Description and operation of the Product 4 1.1 Application of the Product 4 1.2 Technical specification 4 1.3 Structure and principle of operation 5 1.4 Marking and sealing 21 1.5 Packaging 21 2. Utilization 22 2.1 Utilization restrictions (safety measures) 22 2.2 Preparation of the Product for operation 24 2.3 Utilization of the Product 25 2.4 Possible malfunctions and their elimination 27 2.5 Actions under extreme conditions 27 3. Maintenance 27 4. Repair 28 5.
1. DESCRIPTION AND OPERATION OF THE PRODUCT 1.1 Application of the Product Radioactivity detector RADEX RD1008 evaluates the radiological situation according to the value of the ambient dose equivalent H * (10) of ionizing photon (gamma - and X-ray) radiation (hereinafter - the dose rate), the value of the flux density of beta- radiation (hereinafter referred to as the flux density) and acumulates the ambient dose equivalent of gammaradiation (hereinafter - the dose). 1.
1.3 Structure and Operation 1.3.1 Exterior of the Product The product is designed as a portable handheld device with autonomous power supply. The buttons and icon fields of these buttons on the display are shown below. 1. LCD display. 2. Button A and the icon of its function on the display.
5. Slot for the audio alarm. It is located in the upper part of the product. Functions of the buttons in various modes and settings sections change, the button icons on the same display fields change accordingly. The icons prompt the user the functions of the buttons, thereby making the use of the product more convenient. The instruction to press a button with a particular icon means pressing the respective button on the product’s cover.
1.3.2 Display formats 1.3.2.1 When switching the product on, the «screen RD1008» with icons of the buttons, manufacturer’s or individual settings opens on the display, and in some time the detection of gamma-ray or beta-particle (hereinafter - the quantum) icon appears. RD1008 1 2 ■ ●MENU 3 6 OFF● 4 5 1. Symbol marking of the product; 2. « » – The icon of gamma-quantum or beta-particle detection; 3. The icon of the button A - the «MENU» (see art. 1.3.1.2); 4. « » – The icon of vibra signal.
3. « » – Indication of the number of cycles of gamma-radiation measurement carried out (the full glass» equals to 8 cycles of measurements -« »). Cycle duration of gamma-and beta-radiation measurement may not be identical, so this icon of gamma- radiation may not coincide with an icon of beta- radiation according to the number of cycles. 4. « » – The icon of quantum registration. 5.
«0,30» – The icon of the alarm threshold for gamma-radiation. For example, « 0,30», if the alarm threshold is 0,30 µSv/h. The threshold can be set in a range from 0,05 to 1,20 µSv/h. If the threshold is off, there is no icon. 17. «BKG 0,20» – The value of the background dose rate in µSv/h. (Only in the mode «MEASURE» taking the background into account). 18. «GAMMA » – Type of radiation indicator. 1.3.2.
1.3.2.4 The display when executing the «DOSE» function. A short pressing the button «DOSE» in the modes «MEASURE» and «SEARCH» makes the accumulated dose values appear an the display. 1 :: DOSE 1 ::::::::::::::::: 2 8,29 ■ 3 4 1. 2. 3. 4.
In the mode «SEARCH» the calculation of particles detected with the gammadetector and the beta-detector is carried out and the total number of impulses, calculated during the measurement period appears on the display. The «SEARCH» profile allows you to locate the source of radiation according to the change of the detected particles frequency and the indications on the display. The «SEARCH» has the twice smaller evaluation cycle than the «MEASURE».
B) In the mode «MEASURE» taking the background into account the dose rate and flux density evaluation is executed. But the display for each type of radiation output at the same time shows two indications: for gamma radiation - the dose excess above the background dose rate and the background dose rate value for beta-radiation – this is the flux density excess over the flux density of the background and the flux density of the background value.
The mode «SEARCH» with the background is switched on in the section «BACKGROUND» (see art. 1.3.3.3) of the «MENU». This option can be switched off and on again, and the background values get saved and can be used in the future. We remind once again, that the display shows not the absolute values in this mode, but the excess of the background value. The mode «SEARCH» should be used for the locating the radiation contamination source. 1.3.3.
a) Section «MODE» The section allows you to choose either «MEASURE» profile or evaluative «SEARCH» profile. ► MODE THRESHOLD BACKGROUND SETTINGS CALIBRATION ●SELECT ● ▼ ► √ RETURN● MEASURE SEARCH ● CHANGE ● ▼ RETURN ● Move the cursor by pressing « ». Switch on the mode with the button «SELECT» and it is accompanied by the setting of a tick « » in front of the desired line. Press of «RETURN» returns you to the main «screen» of the menu.
To set the threshold enter the «MENU», select the section of «Threshold» (screen 1), choose the type of radiation, for which the set threshold (screens 2, 3), and enter the screen setup of the threshold value (screen 4). The threshold is set by pressing «5» and «-5» (screen 6). Each press of the respective button increases or decreases the set value by 5. Starting from the threshold value 50, a change step increases to 10, and buttons icons are changed to «+10» (screen 7).
GAMMA BETA ► OFF √ ON ► ● SELECT ● ▼ RETURN ● 10 1/cm2*min ● CHANGE ● ▼ 4 OFF ON 2 √ 10 1/cm *min RETURN ● ●+5 ● -5 5 OFF ON 2 √ 50 1/cm *min SAVE ● 6 OFF ON 2 √ 70 1/cm *min ► OFF √ ON 2 70 1/cm *min → ● + 10 ● -5 SAVE ● 7 ● + 10 ● - 10 SAVE ● 8 ● CHANGE ● ▼ RETURN ● 9 • Press «SELECT», the screen 3 appears on the display, where you choose the type of radiation, in our example - «BETA» for which the alarm threshold is set.
► ::: GAMMA ::::::::::::::::::: 0,12 0,30 ■ :::: BETA :::::::::::::::::::::: 0 10 ●MENU OFF● MODE THRESHOLD BACKGROUND SETTINGS CALIBRATION ●SELECT ● ▼ 1 ●SELECT ● ▼ RETURN ● 2 ► √ OFF ON EVALUATE ● CHANGE ● ▼ RETURN ● ● CHANGE ● ▼ :::: GAMMA:::::::::: BETA:: 1 1 2 2 3 3 4 4 5 5 ■ ● EVALUATE :::: GAMMA :::::::::: BETA:::::: 1 0,13 1 0 2 2 3 3 4 4 5 5 :::: BETA :::::::::::::::::::::: 0 10 RETURN ● 7 RETURN ● ● EVALUATE 8 ::::EVALUATE:: ■ RETURN ● 10 ●SELECT ● ▼ RETURN ● 13
• Press « » twice, the cursor « » move to the section «BACKGROUND» (Screen 3). • Press «SELECT», the screen of background control appears on the display (screen 4). Button « » moves the cursor « » to the position «OFF», «ON», «EVALUATE». The «CHANGE» button switches on the appropriate function, what is shown by the «tick» « ». • To carry put the background estimation you need to move the cursor to « » to the line «EVALUATE» and press the «CHANGE» button (screen 5).
To switch the «BACKGROUND» off and turn the product to the mode «MEASURE» without the background it is necessary to switch to the «MENU» (screens 1, 2), select the section «BACKGROUND» (screen 3), enter the background control screen, set the icon « » approximately there nearby «OFF» (screen 4). To return to the «main screen» of the «MENU» press the button «RETURN» 2 times, the screen «MENU» appears on the display. Press «RETURN». The «screen RD1008» appears and the mode «MEASURE» starts.
When the call is switched on and the threshold off the call will accompany each registered quantum. In the modes «MEASURE» and «SEARCH» the turned on alarm is displayed as the icons on the display. « » - The call is on If you turn the call off, there is no icon. Notes: 1) The «LOUD» call is usually switched on in noisy places or on the street. 2) In the quiet places, in the office or in an apartment we recommended you to use «QUEIT» call with the set up threshold value.
► √ OFF DOSE 1 DOSE 2 ●CHANGE ● ▼ OFF DOSE 1 DOSE 2 ► √ RETURN ● ●CHANGE ● ▼ RETURN ● When the dose accumulation is switched in the field of button C in the «MEASURE» and «SEARCH» profiles the icon «DOSE» is set, it indicates that the accumulation is being executed. e) Section «CALIBRATION». The mode «CALIBRATION» should be used only by trained personnel in certified organization, when in the process of checking the product the new calibration coefficients should be set up.
2 Utilization 2.1 Utilization restrictions (safety measures) Before using this product make sure to read and understand the following safety measures. Strictly follow the rules of the product handling. The following safety precautions allow you to ensure the safe and correct operation of the product in order to prevent injury of the user, as well as to avoid damaging of the product. 2.1.1 Precautions Keep the product out of reach for small children.
2.1.2 Safety measures You should not use, keep or store the product in locations exposed to intense sunlight or high temperatures, such as the dashboard or in the trunk of the car. The impact of sunlight or heat may cause leakage of electrolyte from the batteries, overheating, or explosion, and as a consequence of fire, burns and other injuries. High temperatures can also cause deformation of the product case. Do not store the equipment in humid or dusty areas.
10) Do not leave the device for a long time under direct sunlight and fluorescent light. This can cause damage to LCD display and detector. 11) Do not touch the electrical contacts of the battery compartment. This can lead to corrosion of contacts and disrupt the normal operation of the product. 12) The rapid transfer of product from the cold into a warm room on it and on the internal parts can cause condensation. To prevent it place the product in a closed plastic bag.
2.2.4 Recommendations on targets inspection. 2.2.4.1 When evaluating the radiation environment remember, that the ionizing radiation has a statistical stochastic nature, so even in the same conditions the readings of the product for a short measurement period will be slightly different from each other.
2.3.2 Inspection procedure. During the inspection you should use the «Guidelines for objects survey» (see art. 2.2.4). After switching on the product the radiological situation estimation starts. During the measurement period each detected quantum of radiation is indicated on the display with the icon « » and a short beep if the sound is turned on and the threshold is off. Frequency of this icon indication is proportional to the dose rate or flux density of beta particles.
2.3.4 Methods of radiation monitoring and estimation procedures of controlled values Before starting the radiation monitoring of currency the natural background radiation in the workplace is measured. Estimation of natural radiation background in the workplace shall be carried out not less than in 5 points located at a distance of from 0, 5 to 1,0 m from the money taking point and not closer than 0,2 m from each other. Measuring points should be chosen in the workplace without radioactive contamination.
4. Repair Repair of the detector can be performed at the factory «Quarta - Rad» Ltd. at: 2 Building, 3, Podol'skikh Kursantov, Moscow, 117545, Russia tel / fax +7(495) 316-96-33 E-mail: quarta@quarta-rad.ru http://www.quarta-rad.ru 5. Transportation and storage a. Transportation of the product in the manufacturer's packaging may be performed by all types of transport and for any distance.
