Sper-scientific 840024 Digital Radiation Meter Manual do Utilizador descarregar pdf (Página 14)

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CHECKING AN OBJECT

1. Establish background level (p.11)

2. Press the button

3. Select measurement scale: or

4. Hold the meter with the GM tube

side positioned as close as possible

to the object without allowing

contact. If the object is radioactive,

the radiation level will be highest at

a close distance and will decrease

proportionately as the distance from

the source increases. (For example,

a reading taken at a distance of six

inches (152mm) from the object will

be approximately one-fourth of the

reading taken at a distance of three

inches (76mm) following the inverse

square law.)

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Sper-scientific 840024 Digital Radiation Meter Manual do Utilizador Página 14