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1.2.5.4 The values of threshold levels of surface alpha-particles flux density are
programmed in the range from 0 part./(cm
a resolution of 0.01·10
1.2.5.5 The values of threshold levels of surface activity of alpha-emitting
radionuclides are programmed in the range from 0 Bq/cm
a resolution of 0.01 Bq/cm
1.2.5.6 The values of threshold levels of pulse count rate from alpha, beta,
gamma counter are programmed in the range from 0 cps to 9999 cps with a
resolution of 0.01 cps.
1.2.5.7 The programmed values of threshold values are stored in the non-
volatile memory of the radiometer and remain unchanged when the radiometer is
turned on/off and its batteries are replaced.
1.2.6 The radiometer alarms about exceeding of the programmed threshold
levels with a two-tone sound signal and a red flashing ALARM LED. In this case,
the measurement result blinks on the liquid crystal display (hereinafter referred to
as LCD).
·min).
3
2
part./(cm
2
.
·min) to 999.9·10
2
2
15
·min) with
3
2
part./(cm
to 9999.99 Bq/cm
2
with
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