Doza DKG-07D Gebruikershandleiding - Pagina 4

Blader online of download pdf Gebruikershandleiding voor {categorie_naam} Doza DKG-07D. Doza DKG-07D 11 pagina's. Dosimeter

1.2.13 Limits of complementary measurement error due to:

deviation of the ambient air temperature from its normal value per 10 C ............... ±5 %;

increased relative humidity .................................................................... ±10 %;

change of the power supply voltage ............................................................. 5 %.

1.2.14 Degree of protection provided by casings against ingress of solid items and water

according to the IEC 529-89 ................................................................................. IP40.

1.2.15 Dosimeter is stable against short, with duration 5 minutes, overloads with value of

AEDR of gamma radiation 0.1 Sv·h

relative measurement error within normal range.

1.2.16 Dosimeter is stable against:

RF radiation in the band 80 to 1000 MHz with field strength 3 V/m in compliance with

IEC 61000-4-3:2006;

electrostatic discharges with voltage ±8 kV (contact discharge and air discharge) in

compliance with IEC 61000-4-2-95.

1.2.17 By its protection against electric shock dosimeter complies with the IEC 61010-1:2001.

1.2.18 Dosimeter withstands the exposure of decontamination solutions:

trisodium phosphate or sodium hexametaphosphate (any synthetic detergents) – water

solutions 10 - 20 g/l;

5 % citric acid solution in rectified alcohol.

1.2.19 Weight of the dosimeter, including batteries ............................................ 0.25 kg.

1.2.20 Overall dimensions of the dosimeter (lengthwidthheight) .............. 7429122 mm.

1.2.21 Mean time to failure .................................................... not less than 8000 hours.

1.2.22 Mean life time ................................................................ not less than 7 years.

1.3 Design and operation

1.3.1 All modules of the dosimeter are placed in a compact plastic case.

A liquid-crystal display (hereinafter - LCD) is provided in the upper part of the dosimeter's

front panel, controls are located in the middle part.

1.3.2 The principle of operation of the dosimeter is based on counting of pulses from GM

counter. The built-in converter provides high voltage 400 V for the counter. Data processing is carried

out by microprocessor; obtained measurement result is displayed on the LCD.

1.4.1 The following information is presented at the dosimeter's case:

trademark and name of the manufacturer (supplier);

reference designation of the dosimeter;

works number of a dosimeter according to the manufacturer's system of numeration;

degree of ingress protection against solid items and water provided by casings.

1.4.2 The dosimeter is sealed in accordance with the design documentation.

1.5.1 The dosimeter is packed into a carton which ensures protection against ingress of

atmospheric precipitations and aerosols, splashes of water, dust, sand, solar ultra-violet radiation and

also limits the ingress of water vapour and gases.

-1

. After overload the dosimeter operable and maintains basic

FVKM.412113.026RE