Dose rate measurement range μSv/h 0.01 - 9999
Dose measuring range Sv 0 - 9.99
Flux density measurement
range of beta particles
cm
-2
*min
-1
10 - 999000
Range of detectable energy
gamma radiation
beta radiation
MeV
0.05 - 3
0,1 - 3.5
Margin of error for dose rate % ± 15
Margin of error for beta-particles,
where “Р” is a measured result
% ± (20+1000 /Р)
Measurement time seconds 1
Connection type USB (TYPE-C), Bluetooth
Energy source Lithium polymer battery
Data saves in memory 500
Continuous operation time hours 100
Temperature range °F / °C -4 to +104 / -10 to +40
Unit Size in / mm 46 x 19 x 8 / 116 x 48 x 19
Weight oz / gr 2.8 / 80
The technical specications and/or any features of this device are
subject to change by the manufacturer without notice.
!
The on-screen images (icons) shown in this manual may dier
from the actual images on the screen.
!
How dangerous?
Dierent levels of ionizing radiation present dierent degrees of
danger or they may be just a natural background radiation (coming
mostly from soil and space). As a general rule, an increase in mea-
surement by 0.2 μSv/h above the established natural background
radiation is considered an excess or “elevated”. You should be
aware of where these readings are coming from.
What is on the screen
Notications and Alarms
audio alarm is ON battery power at 100%
vibration alarm is ON battery power at 80%
Bluetooth is ON battery power at 50%
connected to phone Bbattery power at 30%
11:45
current time battery power at 10%
connected to PC USB connected
saving to History
Modes of measuring
SEARCH Mode. The sum measurement of dose rate of
gamma radiation and the ux density of beta-particles, with
results shown as a graph.
MEASURE Mode. Separate measurement of gamma
radiation dose and ux density of beta particles.
EDR Mode in white means the detected radiation levels are
normal. The sum measurement of the dose rate of gamma
radiation and the ux density of beta particles.
EDR Mode showing in yellow indicates the detected radiation
levels as elevated and are higher then threshold Gamma 1
EDR Mode ashing in red means the detected radiation
levels are dangerous and are higher then threshold Gamma 2
DOSE Mode is ON for User 1
DOSE Mode is ON for User 2
DOSE Mode is ON for User 1 blinking in red means the Dose
Threshold for User 1 has been reached.
DOSE Mode is ON for User 2 blinking in red means the Dose
Threshold for User 2 has been reached.
Settings menu
www.QUARTARAD.com
INCLUDED IN THE PACKAGE
• RADEX OBSIDIAN Radiation Dosimeter device
• USB-C cable
• User manual
• Warranty replacement
TECHNICAL SPECIFICATIONS
10
0.12
Margin of Error
Descriptive estimation
Analog scale
Measurement result
Unit of measurement
10
0.12
11:45
Measured results
Modes of measuring
Notications and Alarms
Measurement result is a numerical value of level of radioactivity.
Descriptive Estimation has 3 phases: “Normal Bgnd.” / «Elevated
Bgnd.” / “Dangerous Bgnd.” (Bgnd. is short for Background).
Analog Scale displays the level of radioactivity on a logarithmic scale.
Unit of measurement displays the units of measurement selected in
the Settings: μSv/h, μR/h, CPS, CPM or their multiples mSv/h, mR/h,
R/h, KCPS, KCPM.
Margin of Error - if set to “Relative” (under Settings) then the margin
error is displayed as a percent of the nominal value. If set to “Absolute”
then the margin of error is displayed in the same units as the
measurement. If set to “Do not show” then the margin of error will not
be displayed on the screen.
Measured results