CORNET Microsyslems
ED-25G Electrosmog meter is a
dual
mode
device
for quick
measurement
of
both High
frequency
(RF) Electromagnetic wave
field
strength/power density level
and
Low
frequency
(LF) Magnetic
field
(Gauss, Tesla)
for
living
environments.
lt is an excellent
device
for
individual or company
with
Electromagnetic
wave
safety
concerns.
lt
has RF bandwidth
of
100MHz to 3GHz useful
detection
range, high sensitivity
of
1
.Suw/m' to 0.58w/m2, and
LF
bandwidth of 50Hz
to
1SKHz, sensitivity of 0.1uT to
60uT(1
mG
to
600mG). Also with very fast
response time.
Applications:
-
High
frequency
RF Electromagnetic wave
field strenglh and
power
density
measurement
- Low
frequency
LF Magnetic
field
measurement (Gauss meter function)
-
Mobile phone base station antenna radiation power
density
measurement
- Wireless communication
applications
(AM/FM,
TDMA,
cSM,
DECT, CDMA)
- RF power measurement for transmitters
- Wireless LAN (Wi-Fi),
Bluetooth,
Ultra-wide-band
detection,
installation, optimization
- Spy camera, wireless bug
finder
- Cellular/Cordless phone radiation safety level measurement
-
AC
power line, High voltage
tower,
power
Transformer,
motors and small
appliance
EMF
-
Microwave oven leakage detection
- Personal living
environment
EMF safety evaluation
Usage guide:
Put the 9V battery in
the
ED25G, Handle
the
unit
with
right hand in
vertical
direction, and
push the power switch button to turn on
the
power,
it
will come up
with
RF
meter mode.
The
RF sensor is located in the left hand side of
the
ED25G; the LF
sensor
is located
in
the
right hand top
ofthe
ED25G, please do not cover the sensor area
with
hand or other objects.
There are
two
push button below the power
switch:
"Mode" button and "Hold" button.
"Mode" button is used
to switch
in between RF mode
and
LF mode.
The
"Hold" button is used
to freeze the data reading of
the
ED25G
ln
RF mode,
measured
RF
field
strength/power
density
is
shown on the
digital
LCD display
(with dBm and
mw/m2).
8 LED lights.
With
Red, Yellow, and Green color on the right hand
side of LCD
window
is used for
quick
RF signal
level
indications.3 Red LEDs
are
used to
indicate the 3
safety
range.
The
power level of
each
LED can be
found
in the table on the
ED25G
front
panel.
ln
LF mode,
measured
LF magnetic field
strength
is shown on the
digital
LCD display (with uT
and
mcauss).
8 color LED lights
are
used to show
the
relative strength of
the
magnelic fleld.
Histogram of previous 30 signal level readings
are
recorded and shown
as
moving graph
on the LCD display
for
both RF
and
LF mode.
"Hold" button can be used
to
halt the data
measurement
of
the
ED25G, a "HLD" mark
will be shown on
the
LCD screen
to
indicate
the
"Hold"
condition.
Push
the
"Hold" button
again ED25G will exit from the "Hold" condition.
ln
LF mode,
the
Maximum value of the magnetic
field
measured since
the
last power-on
or mode change is shown on
the
LCD display, this can be used
to
record
the
maximum
magneticfield
automatically
inthe
area.
(9)
Most high
frequency
RF
antenna
such as Mobile phone base
siation
is
vertical
polarized
(in vertical direction),
therefore while in
RF
mode,
the
ED25G is normally used
in
vertical
direction.
ForLFmode,theLFsensorislocatedin theToprighthandoftheED25Gandthe
meter is normally
used
in
Horizontal position
in
LF
mode.
Please rotate
the
meter to find the
maximum reading
direction
in either
case.
The
maximum reading will also increase as you
approach the
source.
ED25G can be used to find
the
location of signal source.
(10)
Most
of
moderh communication
devices
(Mobile phone,
Wireless
LAN, Wi-Fi, etc.,) use digital
communication technology
with
burst RF signals.
When
measuring this
type of
RF signals,
several LED lights
will
blinking
at
the same
time.
This is normal
and
it can
be
used as
an
indication of burst type
of
RF
signals.
For continues
waves
(AM/FM) signals, the LED light will
stable.
ED25G measures peak power density of signal with very fast response
time.
lt is more
accurate than the needle style of readout
which
only shown the average value of signal power
most of the time.
(1
1)
While in
LF mode magnetic
field
measurement, please hold
the
ED25G steady
to
get the
good stable reading, avoid
fast
moving of
the ED25G to
prevent the sudden change of the
reading
caused
by the Earth magnetic field.
(12) To turn-on/turn-off
the
LCD backlight,
go
into hold mode
first,
then toggle the mode switch to
turn-on/turn-off
the
LCD backlight. Remember to turn-off
the
the
LCD backlight
to
reduce the
battery
current
consumption.
- the "SENSOR" mark on the bottom of
the
back enclosure is not used
in
ED25G
(1)
(2)
(3)
(4)
(5)
(b)
(7)
(8)
RF
tGn30t
aeta
LEO
rignal
level
lable
Field
strength/power density readout:
ED25G use 8 high brightness LED
to
indicate the
indications.
measured power density
with
3 safety
@2007
CORNET
Microsystems
lnc.,
1400 Coleman Ave
#C28
Santa Clara
www.cornetmicLo-com
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LED
color
Power
level
RF
Power
density
LF
level
Indication
Aclion
RED3
-5 dBm
ltn
0.'18 w/m'?
30uT
lto
Italy RF safety standard
Caution!
RED2
-10 dBm
0.058
w/m'?
20uT
Swiss RF satety standard
{0 04w/m2)
Caution!
REDl
'15
dBm
0.018
w/m'?
1
0uT
Russian RF safety standard
Caution!
YELLOW3
-20 dBm
5.8
milm2
5uT
safe
YELLOW2
-25 dBm
'1.8
mw/m?
2uI
safe
YELLOWl
-30 dBm
0.58
milm'z
0.5uT
safe
GREEN3
-35 dBm
0.18
mvm'?
0.2uT
WiFi Wireless LAN
typically
in
this
ranoe
safe
GREEN2
-40 dtsm
down
0.06
mw/m'?
v,zu
I
down
Some signal source around
safe
CA
95050
USA
Tel:
(408)9690205
ED25GV2.'1
12tO412008
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