Doza DKG-05D Betriebshandbuch - Seite 9

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2 INTENDED USE

2.1 Operational limits

2.1.1 The dosimeter keeps its operational abilities under conditions given by 1.2.

2.2 Preparation for operation

2.2.1 Dosimeter switching on/off

2.2.1.1 Dosimeter switching on is done by single push of the button MODE. After

switching on, the dosimeter will start self-testing mode, when whole electric circuits of the

dosimeter are tested including indicator and detectors. In case of electric circuit failure the

message Е-(01, 02, 04, 05) would be indicated and the dosimeter will be automatically switched

off. It will also switch off with the sound signal, if the battery power voltage is below 3,3 V. If

the power voltage is below 3,52 V, the dosimeter will switch on, but the preventive sound of 3 s

duration will occur and battery discharge symbol will be indicated. Such signal will be always

given, if the voltage is below 3,6 V during the operation.

It should be noted, that if the short time (less than 1 s) push is done when switching on

the dosimeter, indicator and battery test results will be indicated; the longer push will result to

exclusion of these indications to save time for operational mode start.

During dosimeter self-testing, sound and light signals will be given (red light diode glow)

as well as all segments and symbols of the indicator to give the opportunity of indicator, sound

and light workability visualization. At the end of the self-testing battery voltage is displayed and

the dosimeter enters to operational measurement mode.

2.2.1.2 Dosimeter switching off is done as follows.

Under dose indication mode, to push and keep the button MODE until second sound

signal. To release the button after the second sound. OFF reading will be indicated. Within next

5 s the button should be pressed and released. The dosimeter will be switched off with long

sound. If the button is not pressed within 5 seconds after OFF indication, the indication will

continue to indicate dose. The consumed electric current under switched on state does not exceed

the self-discharge current of the accumulator battery.

2.3 Intended use

2.3.1 Choice of operational mode

The dosimeter is operated in any of three measurement modes with direct indication of

measurement results:

measurement of rate of personal gamma radiation dose equivalent

measurement of single personal gamma radiation dose equivalent

automated EPROM recording is carried out for the accumulated dose at specific time intervals;

measurement of cumulated personal gamma radiation dose equivalent

Mode selection and other operations are carried out by the button MODE push. The

command execution is confirmed by the sound. Radiation danger symbol blinking indicated to

the measurement in progress.

Under TOTAL DOSE mode, the dose accumulated within the whole operational time or

from the moment of last erasure (if any) will be indicated.

To call cumulated dose to the indicator, the button should be pressed until the second

sound under dose rate measurement mode. After the sound, the button should be released and the

message SUM (value of cumulated dose) will be indicated. Upon 3 s the indicator will be back

automatically to the rate of

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mode indication.

ФВКМ.412113.005РЭ

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