terra manual en

8/3/2019 TERRA Manual En

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NOTES


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4 CERTIFICATE OF ACCEPTANCE ......... ......... .......... ......... ..........5 PACKING CERTIFICATE............................................................6 WARRANTY................................................................................7 REPAIR.........................................................................................

8 STORAGE.....................................................................................9 SHIPPING.....................................................................................10 DISPOSAL...................................................................................APPENDIX A ..................................................................................APPENDIX B ..................................................................................


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APPENDIX B

4

3

1

2

5

4

Figure B.1 Front view of the dosimeter


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1 DESCRIPTION AND OPERATION OF THE DOSIMETER

1.1 Purpose of use

The MKS-05 TERRA dosimeter-radiometer (hereinafter ca

designed to measure ambient dose equivalent (DE) and ambient dose e

gamma and X-ray radiation (hereinafter called photon-ionizing radia

particles flux density.

The dosimeter is used for dosimetry and radiometry control a

ecology research; apartment, building, and construction control; grounvehicles control; personal radiation safety; visual aids for educational e


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APPENDIX A

nisotropy of the

dosimeter-radiometer

MKS-05

(vertical plane)

-100

-80

-60

-40

-20

0

| c

1

900

1500

1800

00

2700

300

1200

3600

600

3300

3000

2400

2100

-241

Cs - 137

Co-60

Figure A.1


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Table 1.1 (continued)1 2

Measurement range of photon-ionizing radiation DE mSv

Main relative permissible error limit of photon-ionizing radiation DE measurement with 0.95

confidence probability

%

Energy range of registered photon-ionizing radiation MeV

Energy dependence of the dosimeter readings atphoton-ionizing radiation DER and DE measurementin the energy range of 0.05 MeV to 1.25 MeV

%


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9 SHIPPING

9.1 Packed dosimeters may be shipped by any kinds of closed tranconditions (specified in provision 4) (with temperature limitation in

+ 55 ) and in conformance with the rules and standards effective for ea

9.2 The dosimeters in shipping container should be placed andensure their stable position and to avoid shocks.

9.3 The dosimeters in shipping container endure:

- influence of temperature from - 25 to + 55 ;

- influence of relative humidity (953) % at temperature + 35 ;- shocks with acceleration of 98 m/s2, a shock pulse duration of 16

1000 10 in each direction).9.4 Canting is forbidden.


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Table 1.1 (continued)1 2

Measurement range of surface beta-particles flux density

part./(cm2min)

Main relative permissible error limit ofbeta-particles flux density measurementwith 0.95 confidence probability

%

is a

measurin

Energy range of registered beta-particles MeV


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7.2 All claims are registered in Table 7.1.

Table 7.1

Date of failure Claim summary Action taken


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Table 1.1 (continued)1

General operating supply voltage of the dosimeter from twobatteries

Useful current of the dosimeter at operating supply voltage of3.0 V under natural background radiation and switched off displaybacklight, not more than

Additional permissible error limit at measurement caused by supplyvoltage deviation from nominal value in the range of 3.2 to 2.4 V

for all measured physical values

Additional permissible error limit at measurement caused byambient air temperature changes from - 20 to + 50 oC, per each10

oC deviation from 20

oC for all measured physical values


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6 WARRANTY

6.1 The warranty period of the dosimeter use shall terminate and b

less than 18 months after the date of putting it into operation, and no

after the manufacture date.

6.2 The warranty period of storage of the dosimeter is 6 months aft

6.3 Free of charge repair or replacement during the warranty perio

the producer enterprise provided that the customer observed the guideli

and storage.

6.4 If the defect (according to the claim) is eliminated, the warranty

the time when the dosimeter was not used because of the detected defec6.5 The battery failure is not a reason for claim, after the warranty

finished.


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1.2.4 Threshold level values of surface beta-particles flux densi

9999103part./(cm

2min) with discreteness of 0.0110

3part./(cm

2min)

dosimeter.1.2.5 The dosimeter sends a one-tone audio signal if gamma quan

to the detector, and a two-tone audio signal if the programmed DE

particles flux density threshold levels have been exceeded.

1.2.6 Low battery status is indicated by the dosimeter.1.2.7 DER, DE and surface beta-particles flux density values as

surface beta-particles flux density threshold level values appear on th

the correspondence of information. The values of DER and DER thres

in Sv/h, the values of surface beta-particles flux density and surdensity threshold level are expressed in 103

part./(cm2min), and the

threshold level are expressed in mSv.

1.2.8 The dosimeter performs measurements under the following c


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4 CERTIFICATE OF ACCEPTANCE

The MKS-05 TERRA dosimeter-radiometer of BICT.4_____________________________ serial number meets the 3BICT.412129.006 technical requirements, is tested and accepted fo

Date of issue ___________________

Stamp here Representative of Quality Control Department: __(s

Verification Mark here State Verification Officer: __(s


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1.3 Delivery kit1.3.1 The delivery kit consists of the dosimeter and the main

presented in Table 1.2.Table 1.2 - Delivery kit of the dosimeter

TYPE Item Quantity

BICT.412129.008MKS-05 TERRAdosimeter-radiometer

1 pc.

BICT.412129.006-04 HE Operating manual 1 pc.

BICT.412915.001 Package 1 pc.

ENERGIZER

Battery of AAA

1.5 V type 2 pcs

Other A

oltage aSupplied

Leather case 1 pc.


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where is a numeric value of the measured surface beta-pa

part./(cm2min).

3.2.4.6 Presentation of verification results.

3.2.4.6.1 Positive results of primary or periodic verification are reg

1) primary verification is registered in the CERTIFICATE OF AC

2) periodic verification is registered in the issued Certificate of the

Primary verification results are registered in Table 3.3.

3.2.4.6.2 The dosimeters that do not meet the requirements of thare not allowed for manufacture and use, and get the Certificate of Inad


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- measurement of DE accumulation time and real time;- generation and stabilization of the detectors 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 a flat square plastic body with roundeThe housing (Figure B.1, B.2) consists of the upper (1) and lower

is located in the middle of the upper cover (1); two keys (4) of contrand to the right above the LCD, and a loudspeaker (5) in the upper part

The battery compartment and the window (7) for surface bet

measurement are located in the lower cover (2). The battery compartm(7) have covers (8) and (9) correspondingly, fastened due to the e

materials.


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Measure ambient gamma background with filter-covered windowmode of photon-ionizing DER measurement. Gamma background mewhen the LCD stops blinking.

Place the dosimeter with the open window above the 4CO source su

beta-particles flux density from 50 to 150 part./(cm2min), so that the wo

is placed completely over the active surface of the source. Perform five beta-particles flux density. Register the received readings in the protocol

Calculate the average value of surface beta-particles flux densityerror of measurement.

Place the dosimeter with the open window above the 4CO sousurface beta-particles flux density from 1000 to 10000 part./(cm

2

surface of the detector is placed completely over the active surface of measurements of surface beta-particles flux density. Register the

protocol.


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1.5 Labeling and sealing1.5.1 The upper cover of the dosimeter is inscribed with the na

device, the trademark of the producer, the ingress protection rating ofapproval pattern of measuring instruments.

A factory number and a manufacture date are inscribed on the lowe1.5.2 Sealing is performed by the producer.The device is sealed with a special film seal located in the b

covering the screw heads, whereas the screws fasten the lower cover.Removal of seals and repeated sealing is performed by the comp

and verification.

1.6 PackingThe dosimeter kit (the device and the operating manual

cardboard box. Cardboard and polymer (blister) combination is


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Prepare the verification equipment for operation according to its opFix the dosimeter in the holder so that the mechanical center of

with the center of the detector.Place the holder and the dosimeter in the position, where DER from

Fix the initial DE value and simultaneously switch on the stop-watcRegister the DE measurement results after 60 minutes (accordin

irradiation, calculate the main relative error of measurement in percvalues in the protocol.

Place the holder and the dosimeter in the position, where DER800 Sv/h.

Fix the initial DE value and simultaneously switch on the stop-watc

Register the DE measurement results after 30 minutes (accordinirradiation, calculate the main relative error of measurement in perc

values in the protocol.


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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 d

Examine for mechanical damages.2.2.2 Rules and order of examination for operational readiness.2.2.2.1 Examine the control buttons before switching the dosimeter2.2.2.2 Open the battery compartment and make sure the two

connections are reliable, and there is no leakage of salts after durable s

In case there is a salt leakage, remove the batteries. Clean them, if poInsert the batteries and close the battery compartment.

2.2.2.3 The batteries should be replaced if the dosimeter is switchethe chosen mode the indication PO3P with a two-second interval is bbatteries are discharged).


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Calculate main relative error of measurement in percentage.

Place the holder and the dosimeter in the position, where DER f

8.0 Sv/h.

Perform five measurements of DER, and register the received read

Calculate the DER value in Sv/h according to the formula (1).

Calculate main relative error of measurement in percentage.

Place the holder and the dosimeter in the position, where DER f

80.0 Sv/h.

Perform five measurements of DER, and register the received read

Calculate the DER value in Sv/h according to the formula (1).

Calculate main relative error of measurement in percentage.Place the holder and the dosimeter in the position, where DER f

8102

Sv/h.


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2.2.3.4 Press shortly the MODE button and make sure the dosime

of surface beta-particles flux density measurement, which is indicate

emitting diode opposite the appropriate mnemonic symbol below t

signals following the detection of every beta-particle or gamma quantu


of operators DE accumulation time indication, which is shown by bli

non-blinking comma between the two pairs of digits. The last right dig

per one unit.


of real time indication, which is indicated by a one-second blinking c

pairs of digits.


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3.2.4.2 Testing.

Switch the dosimeter on and program zero values of audio alarm

measuring channel. Afterwards switch on the mode of photon-i

measurement and place the dosimeter near the137

Cs gamma radiat

increase of DER readings on the LCD upon the background level

registration of every gamma-quantum by the detector.

3.2.4.3 Calculation of main relative error of photon-ionizing DER m

Prepare the verification equipment for operation according to its op

Prepare the dosimeter for photon-ionizing DER measurement acco

the OM.Fix the dosimeter in the holder so that the mechanical center of

with the center of the detector.


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Table 2.2 - List of possible troubles and troubleshooting

Trouble Probable cause

1 The dosimeter is notswitched on after the MODEbutton is pressed

1 The battery is discharged2 No contact between thebatteries and the batterycompartment clamps3 One of the batteries is out oforder

1 2 bean3 ba

2 A dischargesymbol is displayed on theLCD after the batteries have

been replaced when thedosimeter is switched on

Poor contact between thebatteries and the batterycompartment clamps

Conba


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3.2.2 Verification facilities.The following measuring instruments and equipment should be use

- testing equipment with standard sources of gamma radiation137

C

- flat standard sources on a hard pad, containing90

Sr +90

Y radionu

- low-active gamma radiation source137

Cs;

- stop-watch.

All verification facilities should obtain valid Control Certificat

Qualification.

Note. Use of other standard measuring equipment that meets th

allowed.

3.2.3 Verification conditions.Verification should be performed in compliance with the following

- ambient air temperature range (205) C;


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- programming of audio alarm threshold levels of photon-ionizing radia- surface beta-particles flux density measurement;- programming of audio alarm threshold levels of surface beta-particles- indication of operators DE accumulation time;- indication and correction of real time;- switching audio signaling of registered gamma quanta and beta-partic- switching display backlight on/off.

2.3.3 Operation procedure of the dosimeter.

2.3.3.1 Switching the dosimeter on/off.

Press shortly the MODE button to switch the dosimeter on. The in

the LCD, blinking of the light-emitting diode below the LCD and registered gamma quanta show that the dosimeter is on. Press the M

and hold it pressed for six seconds to switch the dosimeter off.


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c) serious mechanical damages of the component parts that affect t

dosimeter circuits.

3.1.3.4 Power supply switch off.

Power supply should be switched off each time the dosimeter is no

Do the following:

- switch the dosimeter off;

- open the lid of the battery compartment;- remove the batteries;- examine the battery compartment, check the contact clamps acc

compartment from contamination and contact clamps from oxides;- make sure there is no humidity, no salt spots on the surface

damages of the insulated coating.


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Consider the arithmetic mean of five last measurements after the

the DER measurement result. Every registered gamma quantum will b

signal. Measurement intervals from 1 to 70 seconds and subranges w

depending on the measured radiation intensity.

Note. The statistical processing of data can be rerun forcibly to perf

of the radiation level. To do this, press the THRESHOLD button and h

seconds. Rough evaluation of gamma background level can be performe

2.3.3.3 Programming of audio alarm threshold level

radiation DER.

Programming of audio alarm threshold levels of DER is performedionizing radiation DER measurement.


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3.1.2 Safety measures.Safety measures during TM fully comply with safety measures sta

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 a) check the technical condition of surface, inspect for integrit

scratches, traces of corrosion, surface damages of the dosimeter;b) check the condition of clamps in the battery compartment.3.1.3.2 Delivery kit completeness check.Check if the delivery kit is complete according to Table 1.2.3.1.3.3 Operability check of the dosimeter.3.1.3.3.1 Operability check of the dosimeter is performed accord

present OM.


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When the THRESHOLD button is pressed for more than four seco

starts blinking, indicating that a new threshold level value can be pr

audio signal indicates that the programmed DER threshold level has be

Note. The DER threshold level value of 0.30 Sv/h is set a

dosimeter is switched on.

2.3.3.4 Indication of photon-ionizing radiation DE measuremen

Press shortly the MODE button to switch on the mode of D

indication. This mode follows the mode of photon-ionizing radia

(switched on automatically as soon as the dosimeter is on). Photon

measurement starts right after the dosimeter is switched on, and is pemodes, except for surface beta-particles flux density measurement.


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2.3.3.11 Switching display backlight on/off.At pressing any button of the dosimeter or changing the

display backlight is switched on for 5 seconds. Press shortl button to switch the dosimeter display backlight on without cmode. The display backlight will switch off automatically in 5 s

3 TECHNICAL MAINTENANCE

3.1 Technical maintenance of the dosimeter

3.1.1 General instructions.The list of operations performed during technical maintenance (

dosimeter, the order and the peculiarities of operational phases are pres


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The value of the preset threshold level is fixed after all digits arpressing of the MODE button. To fix a new value of the threshold leLCD by pressing the MODE button, even if the values of the hichanged. Double extinction of the LCD will indicate that the programm

Press and hold the THRESHOLD button to check the value of

level. The threshold level value will appear on the LCD in tw

THRESHOLD button is pressed for more than four seconds, the

blinking, indicating that a new threshold level value can be program

signal indicates that the programmed DE threshold level has been exce

Note. A zero value of the threshold level is set automatically

switched on indicating that the DE threshold alarm system is off.

2.3.3.6 Surface beta-particles flux density measurement.This mode follows the mode of photon-ionizing radiation DE mea


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It is indicated by blinking of all digits and a non-blinking comma digits. The digits from the right to the left will indicate the followingminutes; the second one - tens of minutes; the third one - hours; the fou

2.3.3.9 Indication and correction of real time.

Press shortly the MODE button to initiate the mode of real timfollows the mode of indication of operators DE accumulation time.

It is indicated by a one second blinking comma between the two paThe digits from the right to the left show the following: the first

the second one - tens of minutes; the third one - hours; the fourth one - Press the THRESHOLD button and hold it pressed until two d

comma start blinking to correct the value of real time, and then releas

values of units and tens of minutes are fixed by further preTHRESHOLD button. Press shortly the THRESHOLD button to corrEach pressing will change the value per unit. Press shortly the MOD


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2.3.3.7 Programming of audio alarm threshold level of

flux density.

Programming of audio alarm threshold level of surface beta-p

performed in the mode of surface beta-particles flux density measurem

To start programming, press the THRESHOLD button and ho

seconds) until the low-order digit starts blinking on the LCD. Set the

low-order digit by successive pressing and releasing the THRESHOL

the MODE button to program the next digit, which will start blinking

programmed likewise.

The value of the preset threshold level is fixed after all digits ar

pressing of the MODE button. To fix a new value of the threshold le

LCD by pressing the MODE button, even if the values of the hi

changed. Double extinction of the LCD will indicate that the programm

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