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5.2.3 Press shortly the MODE button if the batteries are already inserted into the
battery compartment. The dosimeter should enter the mode of gamma radiation DER
measurement at once, which is shown by DER measurement units expressed in
“µSv/h” that appear on the digital LCD, and by brief audio signals that follow the
detection of every gamma quantum. All the digits of the LCD will be blinking until
the completion of measurement interval.
The readings of gamma background measurement will appear on the LCD after
the measurement interval is completed.
5.2.4 Press shortly the MODE button and make sure the dosimeter has entered the
mode of gamma radiation DE indication. DE units of measurement expressed in
“mSv” should appear on the LCD.