Chapter 1 Introduction
Your UltraRadiac-Plus can measure and
display both the instantaneous radiation dose
rate (Rate), the amount of radiation being
measured at this moment, and the total
accumulated radiation dose received (Dose)
since the dose memory was last cleared.
The Alarms
The UltraRadiac-Plus’s presettable alarms for
both instantaneous Rate and cumulative Dose
can alert you to hazardous conditions. When
an enabled alarm’s threshold is exceeded, a
visual indicator will begin flashing and,
optionally, an LED will blink and/or an
audible alarm will sound. All units also
include a vibrator alarm that can be
independently set.
The Radiation Units
Depending on the model, your UltraRadiac-
Plus is factory-set to display the Rate and the
Dose in one of these units of radiation
measurement:
• R (roentgen) – a measure of radiation
exposure.
• Sv (sievert) – a measure of absorbed
dose equivalent.
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