Doza DKG-05D Operation Manual - Page 10

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2.3.2 Dosimeter operation description in the complex with УС-05С reading device

2.3.2.1 The УС-05С reader is able to transmit data to the information communication

channels and provides the access to the processed information via communication lines arranged

according to TCP/IP protocol (Ethernet interface).

The description of operation of the reading device УС-05С is in operation manual

ФВКМ.467669.002РЭ.

2.3.3 Dosimeter operation description in the complex with КЗУ-27 cassette charger

2.3.3.1 As already mentioned in 2.2.1, if the power voltage is below 3,52 V, the

preventive sound of 3 s duration, which signal will be repeated each 15 min of the operation

and the battery discharge symbol will be indicated.

ATTENTION! IN SUCH CASE, IT IS NECESSARY TO CHARGE THE ACCUMULATOR

BATTERY, BECAUSE THE DOSIMETER WILL BE AUTOMATICALLY SWITCHED OFF IN

SEVERAL HOURS OF OPERATION, WHEN THE VOLTAGE WILL DECREASE TO 3,3 V.

2.3.3.2 The switching on the device will be only possible after the battery charge.

The accumulator battery charging is provided by КЗУ-27 charger. КЗУ-27 is able to

charge 27 dosimeters simultaneously.

КЗУ-27 is the steel made casing fixed on the wall and it contains 220 V AC power

supply and 27 contact sets connected in parallel to the power supply output. To charge the

battery, КЗУ-27 has to be connected to 220 V mains and the dosimeter has to be fixed in КЗУ-

27 contact set. Dosimeter indicator will show the battery voltage and red light diode will

operate.

2.3.3.3 Charging process is arranged as follows. Immediately after 5 V application to the

charging contact set placed in the dosimeter casing, the processor will stop the measurement

and connect the load resistor to the battery poles, where 100 mA current will be applied for 3 s.

Upon 3 s under the load, the battery voltage is measured. If the measured voltage is above

3,52 V, the forced discharge will be stopped and time-unlimited will be at most 15 mA current

charging will be started. In such case, the battery is considered to be normally charged and the

dosimeter can be operated at any time. If the measured voltage is below or equal to 3,52 V, the

forced discharge will be continued until the voltage decrease to 3.3 V. thereafter, the normal

charging by 90 to 100 mA will be initiated for 12 hours. Three variants of charging light

indication are present:

In case of forced discharge the light diode blinks with 2 Hz frequency,

Under normal charging by 90 to 100 mA the light diode blinks with 1 Hz frequency,

Under permanent charging by 15 mA (storage mode) the light diode is permanently

illuminated.

3 MAINTENANCE

3.1 General

3.1.1 Dosimeter maintenance implies periodical visual examination for the purpose of

absence of damages and check of operability according to 2.2. No additional requirements to

personnel qualification and workplaces are needed.

3.1.2 Basic parameters are checked according to the procedure in section 4.

3.2 Safety measures

3.2.1 The present operation manual should be learnt before dosimeter operation.

3.2.2 When operating the dosimeter, Basic Sanitary Rules of Radiation Safety СП

2.6.1.799-99 (ОСПОРБ-99) and Radiation Safety Standards СП 2.6.1.758-99 (НРБ-99) should

be kept.

ФВКМ.412113.005РЭ