QUARTA RADEX RD1008 User manual

2011
RADIOACTIVITY DETECTOR
RADEX RD1008
User manual

2
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.
The product can be used for estimating the radiation level on the ground and in the
residences, for estimating the contamination of products, objects, money, materials, food
and others with the sources of gamma - and beta - radiation.
The product has the following features:
¾simultaneous evaluation of the ambient dose equivalent of the photon ionizing ra-
diation and the flux density of beta-particles;
¾evaluation of the ambient dose equivalent values for the two users;
¾the continuous estimation with the result adjustment;
¾fast, automatic restart after a sudden change in dose or radiation flux density;
¾display message of the received background values;
¾display message of the measured dose rate or flux density excess above the
background values;
¾time of measuring is reduced as the dose rate increases;
¾increasing the number of measurement cycles leads to an increase in data
precision;
¾change the alarm threshold for gamma- and beta- radiation;
¾measuring gamma-radiation dose with registration of measurement time;
¾in the alarm a sound or a vibra-call signal is used;
Application conditions: the ambient temperature from minus 20 to +50°C and relative
humidity of 80% at +25°C.
Results obtained using this product can not be used for official conclusions about the
radiological situation and the extent of contamination.

3
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
1.5Packaging 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. Transportation and storage 28

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 gamma-
radiation (hereinafter - the dose).
1.2 Technical specifications
oRange of dose rate, µSv/h ….…………………………..……..……………..from 0,1 to 999
oRange of flux density measurement, 1/(cm2* min) …..……….……………. from 6 to 999
oRange of dose measurement ................................................. from 0,01 µSv to 350 mSv
oRange of energies of registered:
1) photon ionizing radiation, MeV ………………………….………….. from 0,05 to 3,0
2) beta radiation, MeV……………………………….……….…..………from 0,05 to 3,5
oRandom error at a confidence probability of 0,95 (reproducibility of results)
1) dose rate, not more,% ……………………………………….…………...... ± (15+3/H)
where H - the dose rate in µSv/h.
2) flux density, not more,% ………………………………………………… ± (20+200/P)
where P - the flux density, 1/cm2* min.
3) the dose, not more,% ………………………..……………………………………..... 15
oRange of audio alarm thresholds
1) dose rate, µSv/h …….……………………………..…………………. from 0,2 to 1,20
2) flux density, 1/(cm2* min) ….……………………..…………………... from 10 to 120
oTime of measurement:
1) dose rate, s …………………………………………………..…………..…from 2 to 21
2) flux density, s..…………………….……………………….…….……………..…….. 21
oPower supply: battery «AA» type …………………….…………….…….…………….. 1 pc.
oTime of continuous work h, minimum ………….……..…………..….….………………..950
oProuct dimensions height x width x thickness, mm, ……………………………140x64x26
oWeight (without batteries), kg, max ……………….……….……………….…….........0,175
¾The measurement time depends on the dose rate. Increase of the number of
measurement cycles leads to the increase of reliability of indications.
¾Time of continuous operation of the product specified for the battery with a capacity
of 3100mAh, with the natural background level not more than 0,30 µSv/h, not more than
5 1/(cm2* min), and factory settings of the product.
Factory settings:
Profile - «MEASURE»;
Dose rate threshold – «0,30 µSv/h»;
Flux density threshold – «10 1/cm2* min»;
Background –«OFF»;
Options: AUDIO – «QUIET»;
VIBRA-CALL– «OFF»;
DOSE – «OFF».
1.2.1 Customization tools:
¾«MEASURE» or «SEARCH» modes
¾setting of the alarm threshold, above which the alarm call or vibra signal turns on;
¾calculation of the background values of dose rate of gamma-radiation and the flux
density of beta-particles;
¾indication of background values on the display;
¾indication on the display of excess of the measured values above background;
¾accumulation of gamma-radiation dose during the observation period for two users;
¾turning on / off the alarm;
¾turning on/off audio;
¾turning on/off vibra signal;
¾turning on/off the display backlighting.
4

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 Aand the icon of its function on the display.
The button has the next options:
¾«MENU» - entering the «MENU»;
¾«SELECT» - the selection of section in the «MENU»;
¾«CHANGE» – changing the settings in different modes;
¾«RESET» - resetting the accumulated dose value;
¾«+5», «+10» - increasing the threshold value with the fixed step;
¾«EVALUATE» - background evaluation;
¾«▲» - in calibration for the coefficients setting.
3. Button Band the icon of its function on the display.
The button has 4 main functions:
¾turning off the display backlighting in the modes «MEASURE» and «SEARCH».
Pressing the button makes the backlighting activate for 2 seconds. There is no
icon of the backlight function on the display;
¾« » - Move the cursor « ». Each press moves the cursor one position down,
from the bottom-most position the cursor returns to the top;
¾«-5», «-10» - reduction of the threshold with a fixed step;
¾«MAX» - the maximum threshold value.
4. Button Cand the icon of its function on the display.
The button has 7 functions:
¾switching on the product;
¾«OFF» - switching off the product with a long press in «MEASURE» or
«SEARCH» modes;
¾«RETURN» - exit from the «MENU»; a return to the previous screen;
¾«DOSE» – switching on the accumulated dose indication;
¾«BKGND» - exit from the background evaluation;
¾«SAVE»- saving in the threshold;
¾«ENTER» - enter the calibration code.
5

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.
On the back side of the product there are:
¾beta - detector window, which is closed with a rolling shutter;
¾cross marked center of gamma-detector;
¾battery compartment cover;
¾battery compartment;
¾shutter latch, using which you can move the shutter.
6

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.
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. If the vibra signal is off, there is no icon.
5. « » – The call icon. If the call is off, there is no icon.
6. The icon of the button C: «OFF» or «DOSE», if dose accumulation function is
switched on (see art. 1.3.1.4);
1.3.2.2. The display format in the mode «MEASURE»
After the first measurement cycle (21 seconds) the screen «MEASURE» with the
measurement results appears on the display.
The two variants of the mode «MEASURE» are possible: tacking the background into
account without the background. The picture of the display below shows the location of the
18 fields and the icons appearance of which is possible in these fields for two variants of
the mode «MEASURE».
Note - Not all of the icons shown on the picture may appear on the display simultane-
ously.
1. Battery indication icon:
¾« » - full charge of the battery;
¾« » - partially discharged battery;
¾« » - low battery;
¾« » - completely discharged battery.
2. – Digital readout of dose rate in µSv/h;
– Digital readout of the dose excess above background values, in µSv/h (only in
«MEASURE» taking the background into account;
10 11
45
RD1008
■
●MENU OFF●
1
2
3 6
789
::: GAMMA: BKG 0,20
8.88 B0,30
■:::: BETA :::: BKG 10
888 B10
●MENU OFF●
16
15
14
13
18
12
17
5
2
1
4
6
3
7

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. « » – Indication of the number of measurements cycles of beta-radiation carried
out (the full «glass» corresponds to 8 cycles of measurements -« »). Cycle
duration of gamma-and beta-radiation measurement may not be identical, so this
icon of beta- radiation may not coincide with an icon of gamma-radiation
according to the number of cycles.
6. «MENU» – The icon of button Afunction (see art.1.3.1.2). Pressing the button
takes you to the mode «MENU».
7. – Digital readout of the flux density in 1/cm2* min;
– Digital readout of the flux density excess above the background values,
in 1/cm2* min (only in the «MEASURE» taking the background into account;
8. « »- The turned on vibra signal icon. If the vibra signal is not off, there is no
icon.
9. « » – The turned on call signal icon. If the call is not off, there is no icon;
10. « » – Icon of exceeding the upper limit of flux density range (999). There is no
icon if the limit is not exceeded.
«» – The icon indicates that the measured flux density is less than the flux
density of the background (only in the mode «MEASURE» taking into ac-
count the background). In this case, the value «0» is shown in the field 6 on
the display.
11. «OFF» – The icon of button Cfunction (see p.1.3.1.4). In this field the icon
«DOSE» is possible, if you've enabled the «DOSE» function. A short press-
ing the button takes you to the screen with the indication of the accumu-
lated dose. A long pressing the button of about 4 seconds (until the display
becomes dim) results in switching the product off.
12. « B 10 » – The icon of alarm threshold and its value for beta radiation in the
«MEASURE» taking the background into account. The threshold in this
mode is set for the difference between the measured value and the value
of the background. If the alarm threshold for a given type of radiation is
disabled, there is no icon.
« 10 » – The icon of alarm threshold and its value for beta radiation. For ex-
ample, «10» means that the threshold alarm is 10 1/cm2* min. The alarm
threshold can be set within the range of 5 to 120 1/cm2* min. If the alarm
threshold is off there is no icon.
13. «BKG 10» – The value of the background flux density in 1/cm2* min (only in the
mode «MEASURE» taking the background into account).
14. «BETA» – Type of radiation indicator.
15. « » – The icon of the upper limit of measured dose rate range excess. If the
range limit is not exceeded, there is no icon.
«» – The icon indicates that the measured dose rate is less than the dose rate
of the background (only in the mode «MEASURE» taking the background
into account). In this case, the value «0,00» is shown in the field 2 on the
display.
16. « B 0,30» – The icon of the set alarm threshold in the mode «MEASURE»
taking the background into account and its value for gamma-radiation.
The threshold in this regime is set for the difference between the
measured value and the value of the background. If the alarm for a given
type of radiation is off, there is no icon.
8

9
«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.
1.3.2.3 The display format in the mode «SEARCH»
In the mode «SEARCH» the total number of particles detected with gamma-detector
and the beta-detector (hereinafter - the number of particles) for the measurement period
and the threshold set for this profile are indicated on the display.
Execution of the mode «SEARCH» is possible in two variants: without the
background and taking the background into account.
The figure of the display below shows the location of the 6 fields and the icons
appearance of which is possible in these fields for two variants of the mode «SEARCH».
Note - Not all the icons shown on the picture may appear on the screen simultane-
ously.
1. «SEARCH» – The mode index.
2. The total number of particles detected with gamma-detector and the beta-detector
divided by 100.
3. «
» –Indication of the number of cycles of gamma and beta radiation evaluation
carried out (the full « glass » corresponds to 8 cycles of measurement – « »).
4. « »– The icon of the upper limit of measurement range excess (999). If the limit
is not exceeded, there is no icon.
«» –The icon indicates that the evaluated value is less than the background
(only in the mode «MEASURE» taking the background into account). In this
case, in the value «0» in the field 2 appears on the display.
5. « 0,30» – The icon of the alarm threshold. The threshold can be set in a range
from 0,05 to 1,20. If the threshold is off, there is no icon.
« B 0,30» – The icon of the set alarm threshold in the mode «SEARCH» taking
the background into account. The threshold in this profile is set for the
difference between the measured value and the value of the background. If
the alarm threshold for a given type of radiation is off, there is no icon.
6. « BKG 0,20» – The value of the background.
The meaning of the remaining icons is explained above (see art. 1.3.2.2).
::: SEARCH
::::::::::::::::::::::::::::: BKG 0,20
■0,12 B 0,30
●MENU OFF●
2
1
3
5
4
6

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. The indicator of one of two accumulated doses: «DOSE1 » or «DOSE 2»;
2. The value of the accumulated dose of gamma-radiation in µSv or mSv;
3. the period of dose accumulation: months, days, hours;
4. «RESET» - the icon of button Afunction - clearing the accumulated dose value;
The meaning of the remaining icons is explained above (see art. 1.3.2.2).
1.3.2.5 The display in the mode «MENU».
1. The list of the MENU sections.
2. «►» – the cursor icon. The current cursor position indicates the pre-selection of
the menu section.
3. «SELECT» – the icon of button Afunction – entering the section indicated by the
cursor.
4. « » - the icon of button Bfunction. When you press the button the cursor moves
down the ring.
5. «RETURN» – the icon of button Cfunction. When you press the button the prod-
uct enters the mode «MEASURE»
1.3.3 Operation modes and the function
The product has three modes: «MEASURE», «SEARCH», «MENU» and the
«DOSE» function.
The mode «MEASURE» is set automatically when switching the product on, the
screen «RD1008» appears on the display. In this profile the evaluation of dose rate, flux
density and appearance of the data on the display is executed. Each detected quantum of
radiation displayed as an icon « ». The «MEASURE» profile has two options: evaluation
without the background and evaluation, taking the background into account.
►РЕЖИМ
ПОРОГ
ФОН
НАСТРОЙКИ
ПОВЕРКА
●ВЫБОР ВЫХОД●
●
▼
►MODE
THRESHOLD
BACKGROUND
SETTINGS
CALIBRATION
●SELECT RETURN ●
●
▼
1
2
3
4 5
:: DOSE 1 :::::::::::::::::
8,29 µSv
■MONTHS: 0
DAYS: 10
HOURS: 12
●RESET DOSE ●
1
2
3
4
10

In the mode «SEARCH» the calculation of particles detected with the gamma-
detector 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 fre-
quency and the indications on the display. The «SEARCH» has the twice smaller evalua-
tion cycle than the «MEASURE».
In the mode «MENU» you can set the mode «MEASURE» or «SEARCH», select
one of two variants of these modes, set the alarm threshold value, carry out the
background evaluation, to turn on the audio alarm or vibra signal, to set the calibration
coefficients for the gamma- and beta-detectors. All individual settings made in the menu
get saved after switching the product off.
When the function «DOSE» is on, the product accumulates and memorizes the
dose received by one of the two users.
1.3.3.1 The mode «MEASURE»
The simultaneous evaluation of gamma-radiation and flux density of beta particles,
and averaging with the results of previous cycles, the output of the data on the display is
executed in this mode.
The time of measurement cycle depends on the dose and can vary from 21 seconds
to 2 seconds. For the dose values from 0,005 to 100 µSv/h the measurement time is
21 seconds, for the values more than 100 µSv/h the measurement time gradually
decreases and reaches the minimum equal to 2 seconds for the value of 999 µSv/h.
The time of the flux density measurement cycle does not change and equals to
21 seconds.
In the mode «MEASURE» the button B(see p.1.3.1.4) performs the function of the
display backlighting turning on. When you press it shortly the backlighting turns on for 2 s.
The backlight allows you to see the measurement results in the twilight and darkness.
Under bright lighting the backlighting effect is invisible.
Note - You should remember that the turning on the backlight greatly reduces the
time of the product continuous one battery operation.
Your product provides two versions of the mode «MEASURE», they are: evaluation
without taking the background into account and evaluation, taking the background into
account
A) In the mode «MEASURE» without the background the dose rate and flux density
evaluation is executed and the results for each type of radiation appear on the display.
The icons of the completed measurement cycles « » (see art. 1.3.2.2, fields 3, 5)
allow us to visually determine the number of measurement cycles and are very useful for
locating the place and the moment of a fast change in dose or flux density of beta-
radiation, as in this case the icon « » changes into the icon, « » what is easy to notice. In
this case the measurement starts automatically from the first cycle and there is no averag-
ing of the results with the previous measurement cycles` results. The subsequent data are
averaged according to the accepted method.
::: GAMMA ::::: ::::::::::::
0,12 0,30
■::: BETA ::::::::::::::::::::::
910
●MENU OFF●
11

12
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.
Dose rate of the background and the background flux density are calculated in ad-
vance during the evaluation of the background (see art.). In other respects these variants
are the same.
This variant is very convenient during performing the inspection inside premises
when you need to know how much the measurements results inside differ from the ones
outdoors or how much the results of the target differ from the natural radiation background
in the workplace, for example, during the radiation control of money.
The mode «MEASURE» with the background is turned on in the section
«BACKGROUND» (see art. 1.3.3.3) of the «MENU». This option can be 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.
1.3.3.2 The mode «SEARCH»
In the mode «SEARCH» the summary evaluation of gamma- and beta-radiation, and
the averaging with the results of previous cycles and the output of the results onto the
display are conducted.
The display shows the total number of particles detected with the gamma-detector
and the beta-detector during the evaluation and threshold set for this mode.
Execution of the mode «SEARCH» is possible in two variants: without the
background and taking the background into account.
a) In the mode «SEARCH» without the background the summary gamma- and beta-
radiation evaluation is executed and the output of one result onto the display - the
summary amount of particles detected with the gamma-detector and the beta-detector
during the evaluation period.
b) In the mode «SEARCH» with the background the summary evaluation of gamma-
and beta-radiation is executed. But the display shows two results: – the excess of the dose
rate above the background dose rate and the summary amount of particles detected with
the gamma-detector and the beta-detector during the background evaluation.
This option is useful when you carry out the inspecting of premises when you need to
know how much the measurements results inside the building differ from the results in the
open space or how much results of the controlled target differ from the natural radiation
background in the workplace, for example, during the radiation control of money.
::: GAMMA:: BKG 0,10
0,12 B 0,30
■::: BETA :::BKG 30
9B 10
●MENU OFF●

13
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.
1.3.3.3 The mode «MENU»
The mode «MENU» is used when it is necessary to change the settings and set the
new calibration coefficients.
¾In the «MENU» you can:
¾Switch on the «MEASURE» or «SEARCH»
¾Set the alarm threshold value for each type of radiation,
¾Turn on the alarm and adjust its volume
¾Activate the vibra signal,
¾To measure the background,
¾Switch on the function of gamma-radiation accumulation for the one of the two
independent users.
When you enter the «MENU», the accumulation of dose is not interrupted, and the
dose rate and flux density evaluation stops until the return to the mode «MEASURE».
To switch from «MEASURE» or «SEARCH» to the «MENU», press and release the
button «MENU» (see art. 1.3.1.3). The «main» screen » of the menu appears on the dis-
play.
When any of the menu screen appears the icon « » is always placed in the top line, in
this case it is pointed to the section «MODE».
Move around the screen can be executed with the button B(see art. 1.3.1.4,), its icon
on the «MENU» screen corresponds to « ». Pressing the button « » moves the cursor
down with switching to the upper line from the lowest position.
Selection of the desired section of the menu can be executed by pressing «SELECT».
Return to the previous menu screen can be executed by pressing the «RETURN» (see
art. 1.3.1.2).
The switching from the «MENU» to the «MEASURE» or «SEARCH» can be executed
by pressing «RETURN». In this case the radiation evaluation starts from the first cycle.
All individual settings made in the menu get saved even after switching the product off
and they are automatically used next time.
::: GAMMA :::::::::::::::::::
0.12 0,30
■:::: BETA ::::::::::::::::::::::
010
●MENU OFF●
►MODE
THRESHOLD
BACKGROUND
SETTINGS
CALIBRATION
●SELECT RETURN●
●
▼

a) Section «MODE»
The section allows you to choose either «MEASURE» profile or evaluative
«SEARCH» profile.
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.
b) Section «THRESHOLD»
The section «THRESHOLD» allows you to set the value of dose rate and flux
density above which the alarm gets activated.
The threshold alarm should be switched on if the call signal or vibra signal re-
quired only after exceeding a specified value of measurement. The user sets the alarm
threshold within the range of the threshold value from 0,05 to 1,20 µSv/h and from
5 to 120 1/cm2*min personally.
Note-The factory settings are:
dose threshold – « 0,30 µSv/h»,
flux density threshold - «10 1/cm2* min»
→
1 2 3
4 5 6
7 8 9
►√MEASURE
SEARCH
●CHANGE RETURN ●
●▼
►GAMMA
BETA
●SELECT RETURN ●
●▼
MODE
►THRESHOLD
BACKGROUND
SETTINGS
CALIBRATION
●SELECT RETURN ●
●▼
►OFF
√ON
10 1/cm2*min
●CHANGE RETURN ●
●▼
OFF
ON
√10 1/cm2*min
●+ 5 SAVE ●
●- 5
OFF
ON
√50 1/cm2*min
●+ 10 SAVE ●
●- 10
OFF
ON
√120 1/cm2*min
●RESET SAVE●
●- 10
OFF
ON
√0 1/cm2*min
●+ 5
●МАХ SAVE ●
OFF
√ON
►10 1/cm2*min
●CHANGE RETURN●
●▼
►MODE
THRESHOLD
BACKGROUND
SETTINGS
CALIBRATION
●SELECT RETURN●
●
▼
GAMMA
►BETA
●SELECT RETURN ●
●▼
14

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).
When the maximum threshold value (120 1/cm2*min) is set, the button Aicon is
changed to «RESET» (screen 8). Pressing the «RESET» resets the threshold to 0, and
buttons icons are changed to «+5» and «MAX» (screen 9).
Pressing the «MAX» sets the maximum threshold of 120.
When you press «SAVE» the set threshold value is saved and you return to the
threshold control screen (screen 4).
The setting of the alarm threshold for gamma radiation can be executed in the same
way. The difference lies in the fact that, in accordance with the maximum possible value of
a threshold equal to 1,20 µSv/h, a threshold change step is 0,05 µSv/h or 0,10 µSv/h, and
button icons« +5 », « -5 »,« +10 »,« -10 » remain unchanged.
Double pressing «RETURN» executes a return to «main screen» menu.
To exit the «MENU» press the button «RETURN». The «screen RD1008» appears,
after the first cycle the screen «MEASURE» or «SEARCH» appear with the set icons and
thresholds values.
In the mode «SEARCH» (see art.1.3.3.2) the alarm threshold value can be set inde-
pendently of the thresholds set in the «MEASURE» mode. When switching the profiles the
set threshold values are saved and used when re-activate the selected profile.
The selection of alarms: a call and / or a vibrating alert is carried out in
«SETTINGS» (see art.1.3.9.4). If the dose or flux density rate recorded during one
monitoring exceed the set alarm threshold, one of two things or both alarms are switched
on:
- If AUDIO is on, the registration of each of the next gamma-ray will be accompanied
with a single beep that signals the threshold excess, when the threshold is exceeded for
beta-radiation there will be one beep at the end of the measurement cycle.
- If the VIBRO-CALL is on, then the registration of each of the next gamma-ray will be
accompanied with a vibrating alert, which signals the threshold excess, when the threshold
is exceeded for beta-radiation there will be one vibra signal at the end of the measurement
cycle.
If the threshold is off the sound call or vibra signal accompanies each detected
gamma quantum. Detection of the beta particles is accompanied by a call or vibra signal at
the end of the measurement cycle.
The example of changing the alarm threshold for the beta - radiation from
10 1/cm2* min to 70 1/cm2* min is shown below.
• To change the threshold from the «MEASURE» switch to the «MENU». The display
shows «main screen» of the menu - (screen 1).
• Press « », cursor moves to the line «THRESHOLD» (screen 2).
1 2 3
►MODE
THRESHOLD
BACKGROUND
SETTINGS
CALIBRATION
●SELECT RETURN●
●▼
MODE
►THRESHOLD
BACKGROUND
SETTINGS
CALIBRATION
●SELECT RETURN●
●▼
►GAMMA
BETA
●SELECT RETURN●
●▼
15

4 5 6
→
7 8 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.
• Press the button « » once, the cursor is directed to the appropriate line (screen 4);
• Press «SELECT». The screen for setting the threshold for beta radiation (screen 5)
appears on the display.
• Double-press of the button « » makes the cursor move to the line of the threshold
value setting.
• Press the button «CHANGE» to confirm the selection (screen 6), which is accompa-
nied by the installation of a tick « » in front of the selected line.
• When setting the threshold, its value is set by pressing «+5» and «-5» (screen 6),
each pressing of these buttons increases (decreases) the set value by 5. By pressing
«+5» for 8 times we set the threshold value equal to 50 1/ cm2*min (screen 8). Starting
from the threshold value 50, a change step increases to 10, and the button icon changes
to «+10» (screen 7). By pressing the «+10» for 2 times we set the threshold value equal to
70 1/ cm2* min (screen 8).
• To memorize the set value press the button «SAVE».
When you press «SAVE», the set threshold value is memorized and you return to the
screen of thresholds control (screen 9).
Twofold pressing the button «RETURN» returns you to the «MENU».
c) Section «BACKGROUND»
In this section you can control the options of the mode «MEASURE»: taking the
background into account or not and determine the value of the background dose rate and
the flux density of the background.
In the mode «MEASURE» the background values are calculated for both gamma - and
beta-radiation, in the mode «SEARCH» the background value is calculated for the
cumulative effect of gamma - and beta-radiation. To set up a mode «MEASURE» taking
the background into account, you must first carry out the background level evaluation.
•To enable the evaluation of the background level you should switch from
«MEASURE» to «MENU», to do this press the «MENU» button (screen 1). The display
shows the «main screen» menu - the screen 2.
GAMMA
►BETA
●SELECT RETURN ●
●▼
OFF
√ON
►10 1/cm2*min
●CHANGE RETURN ●
●▼
OFF
ON
√10 1/cm2*min
●+ 5 SAVE ●
●-
5
OFF
ON
√50 1/cm2*min
●+ 10 SAVE ●
●-
5
OFF
ON
√70 1/cm2*min
●+ 10 SAVE ●
●- 1
0
►OFF
√ON
70 1/cm2*min
●CHANGE RETURN ●
●
▼
16

1 2 3
→
4 5 6
7 8 9
10 11 12
a
b
c
d
13 14
►MODE
THRESHOLD
BACKGROUND
SETTINGS
CALIBRATION
●SELECT RETURN ●
●▼
MODE
THRESHOLD
►BACKGROUND
SETTINGS
CALIBRATION
●SELECT RETURN ●
●▼
►√OFF
ON
EVALUATE
●CHANGE RETURN ●
●▼
:::: GAMMA:::::::::: BETA::
1 1
2 2
3 3
4 4
5 5
●EVALU
A
TE BKGND ●
:::::EVALUATE ::::::
■
RETURN ●
:::: GAMMA :::::::::: BETA::::::
1 0,13 1 0
2 2
3 3
4 4
5 5
●EVALU
A
TE BKGND ●
:::: GAMMA :::::::::: BETA::::::
1 0,13 1 0
2 0,12 2 7
3 0,11 3 11
4 0,12 4 9
5 0,12 5 0
●EVALU
A
TE BKGND ●
√OFF
ON
►EVALUATE
●CHANGE RETURN ●
●▼
::: GAMMA :::::::::::::::::::
0,12 0,30
■:::: BETA ::::::::::::::::::::::
010
●MENU OFF●
::: GAMMA :::::::::::::::::::
0,13 0,30
■:::: BETA ::::::::::::::::::::::
010
RETURN ●
::::EVALUATE::
■
RETURN ●
►OFF
√ON
EVALUATE
●CHANGE RETURN ●
●▼
►MODE
THRESHOLD
BACKGROUND
SETTINGS
CALIBRATION
●SELECT RETURN ●
●▼
::: GAMMA ::: BKG 0,11
0,02 B 0,30
■::: BETA ::::: BKG 0
0B 10
●MENU OFF ●
17

• 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). The screen 6 with an empty
table appears, where the figures «1», «2», «3», «4», «5» determine the number of obser-
vation points, where you need to estimate the background.
Now you need to choose the first observation point and place the product there, in
accordance with the instructions given in the art. 2.3.3 and 2.3.4.
• Press the «EVALUATE» button, the screen 7 appears on the display and the
background measurement cycle starts. After the first cycle the screen will conform to the
mode «MEASURE» (screen 8). To get the accurate results of the background
measurement you need to carry out 8 cycles of measurement with averaging of the
results. After about 4 min. the background estimation in the first point is complete. The
display shows the screen 9 with the results in the first line: in the left – column the value
of the background dose rate in the first measuring point, in the right column – the flux
density value.
Note - You can stop the cycle of background measuring. To do this, press «RETURN»,
and the background measurement cycle is interrupted, the screen 6 appears.
• Move the product to the second point of measurement.
Press «EVALUATE» and wait the completion of the cycle «EVALUATE». The numbers
in the second line – are the results in the second point of measurement.
To obtain the accurate results of the background you need to perform the similar
observations at 5 points (screen 11).
Note - You can reduce the number of measurement points, for this you should press
the «BKGND» without waiting for the fifth cycle of measurement. But this reduces the
results accuracy.
• Get 5 readings, press «BKGND» the screen 12 appears on the display.
• To return to the «main screen» of «MENU» press «RETURN», the screen 13 appears
on the display.
• Press «RETURN», the screen RD1008 appears on the display and the «MEASURE»
taking the background into account.
• After completing the first cycle of the mode «MEASURE» taking the background into
account the, screen 14 appears on the display, where
a) background dose rate, calculated on the points of the background evaluation;
b) the difference between the dose rate and dose rate of the background;
c) the background flux density, calculated on points of the background estimation.
d) the difference between the current flux density and flux density of the background;
In the subsequent cycles, the current values are averaged in accordance with the
algorithm of the product operation.
If the background evaluation was carried out under the mode «SEARCH», then instead
of the screen 6 the screen 15 will appear turn with an empty table for the estimation results,
but there will be one column with the numbers in it, not two ones. This table will be filled
during the background evaluation (screen 16).
….
15 16
:::::::::: BACKGROUND :::
1
2
3
4
5
●EVALU
A
TE BKGND ●
:::::::: BACKGROUND:::
1 0,09
2 0,12
3 0,10
4 0,10
5 0,12
●EVALU
A
TE BKGND●
18

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. After completing the measurement cycle the display shows the absolute results
regardless of the background.
When you switch off the mode «MEASURE» with the background, the values
obtained during the background evaluation get saved and are reused when switch to the
mode «MEASURE» with the background, if a new background evaluations was not
performed.
The rules and procedure of background dose evaluation are described in the articles
2.3.3., 2.3.4.
d) Section «SETTINGS»
In the «SETTINGS» there are three options: «AUDIO», «VIBRA-CALL» and
«DOSE», which can be turned on or off.
• OPTION «AUDIO»
The option «AUDIO» is intended to regulate the volume and to mute the ringer – the
signaling.
In the option «AUDIO» you can set the ringer volume to the «QUIET», «MEDIUM»,
«LOUD» or switch it off.
Below you see an example of call switching from «QUIET» into «OFF».
1 2 3
4 5 6
In the «MENU» press « » 3 times, the cursor « » move to the section
«SETTINGS» (screen 2).
Press «SELECT», the screen 3 appears on the display.
Press «SELECT», the screen 4 appears on the display.
Press «CHANGE», the screen 5 appears on the display, where the tick « » will be
placed next to the line « OFF ».
To return to the screen «MENU» press «RETURN».
To return from the «MENU» to «MEASURE» press «RETURN», the display will show
«RD1008» screen (screen 6), and then the screen «MEASURE» with the icon« », and
the icon « » will be off.
►AUDIO
VIBRA-CALL
DOSE
●SELECT RETURN
●▼
►OFF
√QUIET
MEDIUM
LOUD
●CHANGE RETURN●
●▼
►MODE
THRESHOLD
BACKGROUND
SETTINGS
CALIBRATION
●SELECT EXIT●
●▼
MODE
THRESHOLD
BACKGROUND
►SETTINGS
CALIBRATION
●SELECT RETURN●
●▼
►√OFF
QUIET
MEDIUM
LOUD
●CHANGE RETURN●
●▼
RD1008
■
●MENU OFF●
19

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.
• Option «VIBRA-CALL »
The option «VIBRA-CALL» is used to turn on and off the vibra call signal.
The control algorithm is similar to that described above the call control algorithm.
If VIBRA-CALL is on, then the registration of each of the next gamma-quantum will
switch on the vibrating alert, which signals the threshold is exceeded; when the threshold
is exceeded for beta-radiation the vibrating alert will be switched one time at the end of the
measurement cycle.
If the alarm threshold is off the vibra signal accompanies each detected gamma
quantum. Beta particles detection is accompanied by one vibra signal at the end of the
measurement cycle.
In the modes of «MEASURE» and «SEARCH» the switched on vibra signal is indi-
cated on the display as the icon - « ».
When the vibra signal is off, there is no icon.
Notes:
1) In the quiet places, office or apartment we recommend you to use the vibr a signal
with the set threshold value.
2) You should remember that the use of vibra signal greatly reduces the time of
continuous operation of the product.
• Option «DOSE».
The option «DOSE» is used for the control of the «DOSE» function: the switching on
of the accumulated dose of gamma radiation counting and the measuring of the period
during which it was accumulated, selection of one of two options «DOSE 1» or «DOSE 2»
or switching off this function. Your product provides for the accumulation and saving of the
doses for two independent users
To enable the accumulation of gamma-radiation dose it is necessary to enter the
«MENU», go to «SETTINGS», place the cursor in front of the line «DOSE» and press
«SELECT». The screen of the «DOSE» control function appears: switching the profile off
and selection of one of two possibilities of accumulation «DOSE 1» and «DOSE 2».Next,
you need to move the cursor to the desired line «DOSE 1» or «DOSE 2» and click
«CHANGE». The icon « » confirms the setting.
Exit from the control screen: double click «RETURN» to return to «MENU» and
«RETURN» to switch to «MEASURE».
When selecting one of the doses its value is accumulated and the value of the other
dose is saved. When you specify a previously saved dose, its value is added to the
previously memorized result. This option allows you to estimate the doses accumulated in
different conditions, at different time, for different people, etc.
20