Doza DROZD Kullanıcı Kılavuzu - Sayfa 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
3.1 General notes
Maintenance is performed with the purpose of ensuring reliable, long-term operation of
dosimeters.
No special qualification or workplace arrangement is required.
3.2 Safety precautions
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 Maintenance routine
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
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