RADIATION MONITOR RADEX RD1706 OPERATING MANUAL
RADEX and РАДЭКС are the registered brands of QUARTA-RAD Ltd.
Radiation monitor RADEX RD1706, hereinafter referred to as the device, is designed for detection and evaluation of the level of ionizing radiation hereinafter referred to as irradiation. The device evaluates radiation environment by the magnitude of the ambient equivalent of dose rate Н*(10) of gamma radiation (hereinafter referred as a dose rate) with taking into account gamma radiation and the pollution of objects by sources of beta particles.
TABLE OF CONTENTS Precaution measures.................................. Physical configuration............................... Display format in monitoring and background modes..................................... Operating mode......................................... Monitoring mode....................................... Menu mode................................................ LEVELS.................................. BACKGROUND..................... SETUP..................................... SERVICE.......
Precautionary measures Do not use, place or storage the device for a long time under the impact of intense direct solar light or height temperature, for example on an instrument board or in a trunk. The impact of the sunlight or temperature can lead to electrolyte leakage from power elements, their overheating or explosion and therefore to arson, burn and other injuries. High temperature can also cause malformation of the device's frame. Do not storage the device in damp and dusty places.
In order to prevent damages to the unit do not use it if a condensate has appeared. If it is so extract power batteries from the unit and wait for a while till a condensate evaporates. It is possible to use the device after a complete vaporization of a condensate only. Extract power batteries if the device is not being used for a long time and keep the unit in dry and cool conditions. It is not recommended to keep the unit in places like labs where chemical agents potentially may cause corrosion.
Physical configuration The unit is designed as a portable and handheld device with a self-contained power supply. 1 4 2 3 1. LCD 2. «MENU» button and its function icon (on display). The button responds to five functions: - «MENU» – responds in «Monitoring» and «Background» modes; - «SELECT» – responds in «Menu» mode; - «CHANGE» – responds in «Menu» mode; - «START» – responds in «Menu» mode; - « » – shifting the cursor of an altering figure in «Menu» mode. 3.
4.«OFF» button and its function icon. The button has six functions: - switches on the device; - «RETURN» – sends you one level back in «Menu» mode; - «EXIT» - transfers you from «Menu» to «Monitoring» or «Background» modes; - «END» – responds in «Menu» mode; - «SAVE» - responds in «Menu» mode; - «OFF» - switches off the devise in «Monitoring» and «Background» modes. The icons suggest to user the functions of buttons making it easier to operate. Further in the text only icons of buttons will be pointed out.
Display format in «Monitoring» and «Background» modes After activating the unit displays a screen of RD1706 with button icons and individual or manufacture settings. Location of 14 fields and possible icons are shown on two display pictures below. 10 9 1 2 8 3 7 6 4 5 1.Icon of battery charge: « « « » - complete battery charge; »- partly discharged battery; »- completely discharged battery 2.Conventional symbol of the unit. 3. « »- icon of quantum registration. 4.Icon of «MENU» button.
« « 5.Icon of «CURSOR» button (page 7). This field contains one of the following icons: » - switching on backlight in «Monitoring» and «Background» modes; » - moving cursor and altering value of a threshold in «Menu» mode. 6.Icon of « OFF » button (page 7).
After a short cycle of observation the screen with read outs appears. 11 12 13 14 11.Digital readings of a dose rate in μSv/h; 12.Icon of the number observations performed: « » - corresponds to the short (half of the complete) cycle of observation « » - corresponds to one complete cycle of observation; « » - corresponds to two complete cycles of observation; « » - corresponds to three complete cycles of observation; « » - corresponds to four and more complete cycles of observation. 13.
Operating mode There are three operating modes in the unit: «Monitoring», «Background» and «Menu». The «Monitoring» mode is set automatically at start of unit's functioning. This mode gives estimation of a dose rate and indications output to the LCD. The time of a dose rate estimation varies from 24 sec when a dose rate is less than 3,5 μSv/h till 1 sec when a dose rate exceeds 72,0 μSv/h. The button «CURSOR» in «Monitoring» mode (page 7) fulfills the function of turning on/off backlight of the display.
Monitoring mode This mode gives the value of a dose rate displaying indications on the LCD. Every registered quantum is displayed on LCD as « » icon. Blinking frequency of « » icon is proportional to the strength of a radiation dose rate. A short cycle of observation is introduced in order to reduce a waiting time of the first reading.
Menu mode In «Menu» mode you can arrange the magnitude of a threshold signal, turn on/off alarm and vibra-call, enable «Background» mode, estimate the background radiation and also receive reference information. Switching to «Menu» mode ceases monitoring of a dose rate. In order to switch from «Monitoring» to «Menu» mode press and release «MENU» button (page 7). The main menu displays on the screen.
«LEVELS» section Exceeding of a threshold dose rate value which can be set in «LEVELS» section provokes to alarm signal actuation. A threshold signal should be switched on when it is necessary to receive alarm or vibra signals in case of a fixed radiation dose rate exceeding. User himself sets a value of a threshold signal (range from 0,1 up to 99,0 μSv/h). Choosing the type of a signal (audio or vibra signal) is made in «SETUP» section (page 22).
To change the level of a threshold switch from «Monitoring» to «Menu» mode (screen 1). The main menu displays on the screen (screen 2).
Press « SELECT » button and the screen 3 will appear. A double-click on « » button (screens 4 and 5) moves the cursor « » to « 0,30 μSv/h ». Press «CHANGE» button and the icon « » will be placed opposite to « 0,30 μSv/h » and a digit 3 becomes underlined (screen 6); A double-click on « » button establishes « 0,30 μSv/h » value (screens 7 and 8). Press « » button and the underlined figure moves one position left (screen 9).
«BACKGROUND» section «Background» mode can be turned on in this section. It calculates an average value of a background dose rate. To activate «Background» mode switch from «Monitoring» mode to «Menu» mode (screen 1).Amain menu displays (screen 2). Press « » button and cursor « » places opposite to «BACKGROUND» section (screen 3). Press «SELECT» button and screen 4 appears. Double-click on « » button and cursor « » places opposite to «BACKGROUND» (screens 5 and 6). Press «CHANGE» button.
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Press «START» button and wait till completion of the cycle of «BACKGROUND» estimation (screen 13).Avalue in the second line is the evaluation of a dose rate in the second sighting point (screen 14). In order to receive accurate estimation of a background it is necessary to conduct similar observations in 5 sighting points (screen 15). Note. A number of sighting points can be reduced by clicking « END » button without waiting for ending of the fifth cycle of estimation.
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«SETUP» section Two types of signal can be chosen in «SETUP» section: «AUDIO» and «VIBRA-CALL» which can be turned on/off by placing « » icon opposite to a correspondent choice. Example of activating a vibra signal instead of an audio one is demonstrated below. To activate a vibra signal switch from «Monitoring» to «Menu» mode by pressing «MENU» button (screen 1). Press « » button two times, the cursor « » will be displaced opposite to «SETUP» section (screen 2). Press «SELECT» button, screen 3 appears.
1 2 3 4 5 6 7 8 From this moment a vibra signal turns on if the value of a dose rate exceeds the installed threshold of alert when a threshold function is not turned off (page 15). A vibra signal starts functioning in a pulse-mode till the end of an observation cycle. Note. Using a vibra call shortens sharply the device's non stop operating time. Setting an audio signal is similar to modifying a vibra call.
«SERVICE» section In «SERVICE» section the following is mentioned: * phone number of an organization where a radiation monitor RADEX RD1706 can be acquired, * phone number of the QUARTA-RAD Ltd. Company, which sells wholesale a radiation monitor RADEX RD1706; * internet address www.quarta-rad.ru, where you can find news about a radioactive situation in Russia, get acquainted with radioactivity safety norms and other normative documents. Place a pointer « » opposite to «SERVICE» with «CURSOR» button.
«Background» mode This mode is convenient for examining inside the buildings. In «Background» mode the estimation of the radiation dose rate is similar to the one in «Monitoring» mode (page 13), yet the display gives not just one but two indications. One stands for exceeding of a dose rate over background dose rate, the second is for a background dose rate. This mode is convenient for examining inside buildings, when it is necessary to know how indications indoors differ from the ones outdoors.
Preparations for using Before actuating the device read the operation manual and functions of operating controls carefully (page 7). Installation of power elements 1.Take off the cover of a battery compartment. 2.Install into the battery compartment one or two power elements size " AAA" abiding polarity of contacts. 3. Install the cover of a battery compartment.
Device using Switching on the device To switch on the device press «OFF» button (page 7) and the screen «RD1706» will be displayed. The sequence of survey After switching on the device the examination of the radioactive environment starts. During the time of observations every registered quantum of radiation is accompanied by a displayed presentation « » icon (page 9) and a short audible signal, if the sound is switched on and the threshold is off.
Icons « »- corresponds to one complete cycle of observation; « »- corresponds to two complete cycles of observation; « »- corresponds to three complete cycles of observation; « »- corresponds to four and more complete cycles of observation.
Radiation control in quarters and public buildings. According to modern ideas about danger of small doses of radiation, the defensive measures of ngabited buildings should be conducted if a dose rate of gamma radiation inside a building exceeds a dose rate outside for more than 0,20μSv/h.
Marking and Sealing On the frame of the device are marked: - trade mark of the manufacturer; - trade mark - RADEX. Conventional designation of the monitor - RD1706 appears on display at its turning on. The assembly number of the device is on the main menu screen. The device is not sealed up by the manufacturer. Packing Packing ensures the safety of the device during the transportation.
Technical service The maintenance of the unit involves: 1) dusting off the unit from an outboard surface; 2) power elements should be replaced if the message « » displays; 3) power elements should be expelled from battery compartment in case of a long term of interruption (more than one month); 4) wipe the display only with a soft tissue. During cleaning the device should be off. Do not let smaller articles penetrate the device through a perforation.
Actions in extreme conditions CAUTION! IF THE ITEM HAS DISPLAYED A DOSE RATE MORE THAN 1.20 μSv/h IT IS NECESSARY TO LEAVE THIS ZONE URGENTLYAND APPLY TO A STATE SANITARY - EPIDEMIOLOGICAL OFFICE FOR CONDUCTING A DETAILED RADIATIVE EXAMINATION.
Technical specifications Range of dose rate indications, μSv/h ……………. 0,05 to 999 Range of registered energy: 1) gamma radiation, MeV …….................... 0,1 to 1,25 2) X-ray radiation, MeV ………….....…….. 0,03 to 3,0 3) beta radiation, MeV …..….……...... from 0,25 to 3,5 Reproducibility of indications (at confidential probability 0.95),%…………..….….......… 7+6/Р P is a doze rate in μSv/h . Threshold levels, μSv/h …………………..………..….. 0,1 to 99,0 Time of calculation, s……....…………………….....……..
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