RADEX MR107 User manual

20 years of experience in developing radiation detection
technology for consumers and government agencies.
RADEX MR107 Quick Start
Thank You for purchasing the RADEX MR107 Radon
Gas Detector. This unit is designed to detect and mea-
sure the Equivalent Equilibrium Volume Activity (EEVA)
of the Rn-222 (radon) in the air, as well as volumetric
activity of its decay products commonly called “daugh-
ters of radon”.
RADEX MR107 can detect dynamic changes in gas con-
centration, sound an alarm when the gas levels are no
longer safe, transfer data onto a PC for analysis.
Features and capabilities:
• measuring the volume activity of radon in the air
(EEVA); relative humidity and air temperature
• adjustable audio alarm that reacts to excessive
EEVA levels of radon
• tracking of dynamic changes in radon EEVA, air
temperature and relative humidity.
• calculating minimal, median and maximum values
of radon EEVA. Air temperature and relative
humidity.
• storing gathered data in internal memory
• transferring stored data to PC.
• working with data via PC software
GETTING STARTED
This device does not require any special preparations
or a warmup and is ready as soon as is activated.
The device draws power from an internal battery or
from an external power source of 5V. To connect to an
outside power source use the micro-USB port located on
the back side of the device.
PLACING THE DEVICE
The proper placement of the radon gas detector
should be roughly at the same height as a person’s head
(breathing), ie – on the oor of a game room; on a table
at an o󰀩ce; on a nightstand in a bedroom.
Radon detector uses highly delicate sensors, hence it
is strongly recommended to avoid exposing ventilation
holes on the device to direct sunlight, as well as keeping
the device away from sources or strong electromagnet-
ic radiation such as cell phones, computers, radios and
high-power electronic devices.
In the case of dangerously high radon levels it is neces-
sary to fully and properly ventilate the venue and prefera-
bly to locate the source of the gas leak and to remove it if
possible. Another option is to seal o󰀨 the leak.
TURNING THE DEVICE ON AND OFF
To turn the device ON
1. Activate the device using the “Power” switch
located on the back side. The device will go into
Waiting mode.
2. Press on the front side.
3. The device will switch into Measuring mode.
Turning the device OFF.
1. Press and hold the button on the front side of
the device for 5 seconds. The device will switch
from Measuring mode to Waiting mode.
2. For extended storage or transporting please use
the “Power” switch on the back side.
OPERATING THE DEVICE
As the device is activated, the model name appears
on its screen and after 5 seconds the device is in Mea-
suring mode. At the same time there is a status bar and
information about the latest measurements.
To save battery power while operating unplugged, the
device will turn o󰀨 the screen after some time. Mean-
while the measuring continues which is indicated by the
blinking “work in progress” light.
To turn on the screen press the on the front panel of
the device. If the device is plugged in the screen remains
always on.
IMPORTANT: To achieve the highest possible
accuracy we strongly recommend to measure
continuously for no less than 72 hours.
screen
On / O󰀨 / Switch information
on the screen
Work in
Progress
light
USB port to link to a PC or to charge the battery
Power OFF
switch
Front
Back

MEASUREMENT RESULTS
Information displayed on the screen is switched either
in the re-set order or by pressing the button.
1.57 pCi
L3
х1000 MAX
►
The status bar shows the following information:
• The sound alarm for elevated Radon EEVA is either
ON or OFF
• linked to a PC via USB
• ... battery charge remaining
• blinking – the devices is plugged-in to
external power source and charging
•
always on – plugged-in, battery is fully charged
• ►measuring in progress
• measuring stopped
1.57 pCi
L3
х1000 MAX
►
The screen might also display any the following:
• 0.5
pCi
L3level of Radon EEVA in the air
• 86°F air temperature
• 30%humidity in the air
• MAX maximum level detected
• MED medium level of those detected
• MIN lowest level detected
• x1000 result shown need to be multiplied by 1000
TECHNICAL SPECIFICATIONS
Detection range of EEVA radon pCi/L30.8 to 999
Audio alarm thresholds of EEVA pCi/L30.8 to 999
Measuring cycle h 4
Battery run time in measuring
mode h 140
Maximum stored data points 1000
Data transfer method USB
Battery type internal Li-Ion battery
Operating temperature range °F +50 to +95
Dimensions in 6 x 3 x 2
Weight oz 10
COMPONENTS INCLUDED
• device RADEX MR107
• battery
• USB cable
• brief instructions manual
• warranty card
Quarta-Rad, Inc.
1201 Orange St, Suite 700
Wilmington, DE 19801 USA
Customer Service
[email protected]
www.quartarad.com
DYNAMIC CHANGES
►
927
237
pCi L3
• pCi L3graph of dynamic changes in Radon EEVA
• °F graph of dynamic changes in air temperature
• %graph of dynamic changes in air humidity
• 927 maximum detected value (at the top)
• 237 lowest detected value (on the bottom)
SETTINGS
All operation modes on the device are set through PC
software Radex Data Center via USB connection to a
PC. To download visit www.quartarad.com.
CHARGING BATTERY
The internal battery is charged automatically anytime
the device is plugged via USB cable to an outside power
source. If the battery is running low, the charge icon with
a plug starts blinking. Once the charge is critically low,
the screen shows the charge icon only and goes blank
after 3 seconds.
NOTE If the battery is completely drained the device
will not turn on. It would need to be plugged-in and fully
charged rst.
NOT RECOMMENDED to ever allow for the battery to be
completely drained – that may break the device.
REQUIRED in case the battery has been completely drained
and then charged, the device clock needs to be synchro-
nized through Radex Read Software by connecting to PC.
ABOUT RADON GAS
Radon is an odorless, invisible gas that is naturally radio-
active. It comes from soil and as part of its decay, tiny ra-
dioactive particles called “daughters of radon” are formed
that attach themselves to smoke and dust in the air. These
can get trapped in your lungs and may result in a very se-
rious health issue by emitting radiation that causes cancer.
When outdoors, the radon gas is quickly diluted and is
generally between 0.2 pCi/L - 1.0 pCi/L, with an average
level of about 0.5 pCi/L.
If the gas enters a home through cracks in the foundation
and remains concentrated in the basement, it creates a
risk of long-term exposure which may result in cancer.
The EPA of the U.S. Government has estimated that there
are between 5,000 and 30,000 radon-related cancer
deaths each year and the radon is the primary cause of
lung cancer among non-smokers.
Level Detected Recommended
Less than 4 pCi/L3
Do additional long-term
check. Even levels below
4 pCi/L pose some health
risk. Most homes can be
reduced to 2 pCi/L or less.
Equal to or greater
than 4 pCi/L3but
less than 10 pCi/L3
Dо a follow-up long-term
test. EPA recommends
you x your home if the
average of rst and sec-
ond tests is 4 pCi/L or
higher.
Equal to or greater
than 10 pCi/L3
Follow up with immediate
short-term test. If the av-
erage is 4 pCi/L or higher,
x your home.