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1. Introduction
If you don't read anything else in this manual, read Chapter 2,
Basic Functions
, and Chapter 3,
Controls and Indicators
. These cover the basics of using the UltraRadiac(TM) Personal Radiation
Monitor.
Note: Operational procedures are the responsibility of the UltraRadiac's users. Instructions provided in this
manual are "how to's", not procedural recommendations.
Your UltraRadiac 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’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. Some units also include a vibrator alarm.
The Radiation Units
Depending on the model, your UltraRadiac 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.
Gy (gray) – a measure of absorbed dose.
Sv(sievert) – a measure of absorbed dose equivalent.
Most illustrations in this manual show the radiation units asμR (microroentgens, one millionth of a roentgen).
The units are defined in
Specifications
.
file:///C:/Documents and Settings/Buzz/Desktop/radstuff/Dosimeters & ch...
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