Doza DKG-07D Panduan Pengguna - Halaman 7

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Press the "START" (increment) or "MODE" (decrement) button for correction of the

conversion factor so that to obtain required readings (reference value).

Holding this button pressed allows fast selection of required setting.

Next pressing on the "SOUND" button stores the entered value into memory. This is

acknowledged by "K = ok" message.

2.4.4 Return to the normal mode

Dead time and conversion factor, which were corrected but were not stored in memory, remain

unchanged.

To return to the normal mode of operation turn the dosimeter off and after at least 10 seconds

on again.

3 MAINTENANCE

Maintenance is performed with the purpose of ensuring reliable, long-term operation of

dosimeters.

No special qualification or workplace arrangement is required.

3.2.1 Before beginning to work with dosimeter familiarize yourself with this User Manual.

3.2.2 During all operations with dosimeter follow occupational and radiation safety

requirements of current safety instructions in the company (enterprise).

3.2.3 DANGEROUS HIGH VOLTAGE is generated in the dosimeter. A person performing

service operations of a dosimeter shall be familiar with rules for working with equipment with voltages

up to 1000 V and be especially cautious during repair works.

3.3.1 Maintenance is divided into routine and periodic.

3.3.2 Routine maintenance

3.3.2.1 Routine maintenance is carried out during regular operation; it includes inspections of a

dosimeter for timely detection and elimination of factors which can compromise their operability and

safety and replacement of batteries.

3.3.2.2 The following main types and periodicity of routine maintenance are recommended:

visual inspection ................................................................... every month;

cleaning of external surfaces (decontamination) .............................. every month.

3.3.2.3 Decontamination of a dosimeter is performed in accordance with work schedule at the

company (facility), but at least once a year.

Decontamination procedure:

decontaminate external surfaces of dosimeters using clothes moisten with solutions 1) or 2)

of the 1.2.18;

wash surfaces using clothes moisten with distilled water then dry with filter paper.

Dry cleaning can be performed with any periodicity.

3.3.3 Periodic maintenance

Periodic maintenance consists of calibration of dosimeter in accordance with section 4.

FVKM.412113.026RE