Lutron Electronics EMF-8218SD Manuale utente
SD card real time datalogger, RS232/USB
EMF Strength Meter
Model : EMF-8218SD
Your purchase of this
Personal EMF
Strength Meter
with SD CARD
DATALOGGER marks a
step forward for you
into the field of
precision measurement.
Although this METER is
a complex and delicate
instrument, its durable
structure will allow
many years of use if
proper operating
techniques are
developed. Please read
the following
instructions carefully
and always keep this
manual within easy
reach.
OPERATION MANUAL
TABLE OF CONTENTS
1. FEATURES..................................................................................................................................
1
2. SPECIFICATIONS........................................................................
...................................................
2
3. FRONT PANEL DESCRIPTION..................................................................
...........................
5
4. MEASURING PROCEDURE....................................................................
...........................
6
4-1 EMF Strength Function selection and measurement
..............................................................
6
4-2 Data Hold..........................................................
...........................................................
7
4-3 Data Record ( Max., Min. reading )...............................................................................................................
7
5. DATALOGGER................................................................................
......................................................
8
5-1 Preparation before execute datalogger function...............................................................................
8
5-2 Auto Datalogger ( Set sampling time ≧ 1 second ).......................
...........................
9
5-3 Manual Datalogger ( Set sampling time = 0 second )....................
...........................
10
5-4 Check time and sampling time information..........................................................................................................
10
5-5 SD Card Data structure..................................................................................................
11
6. Saving data from the SD card to the computer..................................................................
12
7. ADVANCED SETTING...............................................................................
...........................
14
7-1
SD memory card format....................................................................................................
14
7-2 Set clock time ( Year/Month/Date, Hour/Minute/ Second )........................................
15
7-3 Set sampling time ................................................................................................................
15
7-4 Auto power OFF management .....................................................................................
16
7-5 Set beeper Sound ON/OFF............................................................................................
16
7-6 Decimal point of SD card setting................................................................................................
17
8. POWER SUPPLY from DC ADAPTER.....................................................
...........................
18
9. BATTERY REPLACEMENT..............................................................................................
18
10. RS232 PC serial interface.................................................................................
...........................
18
11. PATENT.................................................................................................................................................
20
1. FEATURES
* Each axis (X, Y, Z direction )electromagnetic field measurement.
* Sum of XYZ electromagnetic field measurement.
* Range : 20/200/2000 micro Tesla.
200/2000/20000 milli-Gauss.
* Measurement Bandwidth : 30Hz to 300Hz.
* Non-directional (isotropic) measurement with three-channel
(triaxial) measurement probe
* Microcomputer circuit provides intelligent function and high accuracy.
* Real time SD memory card Datalogger, it Built-in Clock
and Calendar, real time data recorder, sampling time set
from 0 second to 3600 seconds.
* Manual datalogger is available ( set the sampling
time to 0 second ), during execute the manual datalogger
function, it can set the different position ( location ) No.
( position 1 to position 99 ).
* Innovation and easy operation, computer is not need to
setup extra software, after execute datalogger, just take
away the SD card from the meter and plug in the SD card
into the computer, it can down load the all the measured
value with the time information ( year/month/date/
hour/minute/second ) to the Excel directly, then user can
make the further data or graphic analysis by themselves.
* SD card capacity : 1 GB to 16 GB.
* Can default auto power off or manual power off.
* Data hold, record max. and min. reading.
* Microcomputer circuit, high accuracy.
* Power by UM3/AA ( 1.5 V ) x 6 batteries or DC 9V adapter.
* RS232/USB PC COMPUTER interface.
* Heavy duty & compact housing case.
1
2. SPECIFICATIONS
2-1 General Specifications
Circuit Custom one-chip of microprocessor LSI
circuit.
Display LCD size : 52 mm x 30 mm
Measurement Digital, triaxial measurement.
method
Range Manual
Datalogger Auto 2 to 3600 seconds
Sampling Time
Setting range @ Sampling time can set to 1 second,
but memory data may loss.
Manual Push the data logger button
once will save data one time.
@ Set the sampling time to
0 second.
@ Manual mode, can also select the
1 to 99 position ( Location ) no.
Data error no. ≦ 0.1 ％ no. of total saved data typically.
Memory Card SD memory card. 1 GB to 16 GB.
Advanced * SD memory card Format
setting * Set clock time ( Year/Month/Date,
Hour/Minute/ Second )
* Set sampling time
* Auto power OFF management
* Set beep Sound ON/OFF
* Decimal point of SD card setting
2
Over Indication Show " - - - - ".
Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
Sampling Time Approx. 1 second.
of Display
Data Output RS 232/USB PC computer interface.
* Connect the optional RS232 cable
UPCB-02 will get the RS232 plug.
* Connect the optional USB cable
USB-01 will get the USB plug.
Power off Auto shut off saves battery life or
manual off by push button.
Operating 0 ~ 50 ℃
Temperature
Operating Less than 85% R.H.
Humidity
Power Supply * Batteries( UM3, AA ) x 6 PCs, or equivalent.
* AC/DC power adapter .
(adapter is optional ).
Power Current Normal operation :
( w/o SD card save data) :Approx. DC 24 mA.
( w/o Backlight ) :Approx. DC 18 mA.
When SD card save the data : Approx. DC 50 mA.
Weight 480 g/1.05 LB ( meter & probe ).
Dimension 178 x 68 x 45 mm
(7.0 x 2.7x 1.8 inch)
Accessories *
Instruction manual......................................
1 PCS
Included
Optional * SD Card ( 4 GB )
Accessories * USB cable, USB-01.
* RS232 cable, UPCB-02.
* Data Acquisition software,
* SW-U801-WIN., SW-E802.
AC to DC 9V adapter.
3
2-2 Electrical Specifications (23±5
℃
, 25% ~ 80 % RH)
Frequency bandwidth 30Hz to 300Hz
Units mGauss, µTesla.
measurement range and 20μTesla (0.01) and 200mGauss (0.1)
resolution: 200μTesla (0.1) and 2000mGauss (1)
NOTE: 1 μTesla = 10 mGauss 2000μTesla (1) and 20,000mGauss (10)
Accuracy ± (4%FS + 3 digits)
(stated for 50/60Hz) @ 20 micro Tesla range
@ 200 milli Gauss range
± (5%FS + 3 digits)
@ 200 micro Tesla range
@ 2,000 milli Gauss range
± (10%FS + 3 digits)
@ 2000 micro Tesla range
@ 20,000 milli Gauss range
* Spec. accuracy tested under 50 Hz
or 60 Hz.
Sensor (with typical CAL factors) coil
Overload limit 20000mGauss
Thermal response (0 to 50°) 0.5 Sec.
@
Above specification tests under the environment RF Field Strength
less than 3 V/M & frequency less than 30 MHz only.
4
3. FRONT PANEL DESCRIPTION
Fig. 1
3-1 Display.
3-2 Power Button
3-3 Hold Button
3-4 REC Button
3-5 ▲ Button (X,Y,Z,XYZ Function,UNIT Button)
3-6 ▼ Button ( RANG Button )
3-7 Time Button (SET Button ) 3-15 Battery compartment/Cover
3-8 Enter Button ( Logger Button) 3-16 Tripod Fix Nut
3-9 SD card socket 3-17 EMF probe input.
3-10 RS-232 output terminal 3-18 EMF probe sensing head .
3-11 Reset Button 3-19 EMF probe handle.
3-12 DC 9V adapter socket 3-20 EMF probe plug.
3-13 Stand
3-14 Battery Cover Screws
5
4. MEASURING PROCEDURE
E-field sensors
The tester meter that measures and displays EMF in Gauss and
Tesla units with a frequency bandwidth of 30 to 300Hz. The 3 axis
sensor allows for three component (xyz) measurement coverage.
The tester Meter is specifically designed to determine the magnitude of
electromagnetic fields generated by power lines, televisions,
computers electric appliances and many other similar devices.
This tester meter is shipped fully tested and calibrated and,
with proper use, will provide years of reliable service.
4-1 EMF Strength Function selection and measurement
1) Turn on the meter by pressing the " Power Button "
( 3-2, Fig. 1 ) > 1.5 seconds continuously.
*Pressing the " Power Button " ( 3-2, Fig. 1 )
continuously and > 1.5 seconds again will turn off the
meter.
2) measurement Function select
pressing and hold the " Function Button "( 3-5, Fig. 1 ),
to select X axis,Y axis, Z axis, and XYZ axis measurement Function.
3) measurement UNIT select
pressing the " UNIT Button "( 3-5, Fig. 1 ),
to select …1. mGauss 2. µTESLA .
3) measurement Range select
pressing the " Range Button "( 3-6, Fig. 1 ),
to select …
1. 200.0 2. 2000 3. 20000 mGauss, or
1. 20.00 2. 200.0 3. 2000 µTesla.
4) measurement Procedure
1. Probe plug "(3-20 Fig1) into the meter "(3-17 Fig1) probe input.
2. Make several measurements at various locations around the work place
or the interested areas as described above. This is particularly important
if the field conditions are unknown.
6
3. Pay special attention to measuring the neighboring vicinity for possible
radiation sources. Apart from active sources, those components connected
to a source may also act as radiators. For example, the cables used in
diathermy equipment may also radiate electromagnetic energy. Note
that metallic objects within the field may locally concentrate or amplify the
field from a distant source.
4-2 Data Hold
During the measurement, press the " Hold Button " ( 3-3,
Fig. 1 ) once will hold the measured value & the " HOLD " symbol
will be light, Press the " Hold Button " once again will release the data
hold function , HOLD symbol will be quenched
4-3 Data Record ( Max., Min. reading )
1) The data record function records the maximum and minimum readings.
Press the " REC Button " ( 3-4, Fig.1 ) once to start the Data Record
function and there will be a " REC " symbol indicator "
will be light.
2) With the " REC " Symbol is light on the display :
a) Press the " REC Button " ( 3-4, Fig. 1 ) once, the "
REC and MAX Symbol indicator will be light ,
and the maximum value will appear on the display.
b) Press the " REC Button " ( 3-4, Fig. 1 ) again, the
" REC and MIN " Symbol indicator will be light ,
and the minimum value will appear on the display.
c) To exit the memory record function, just press the
" REC " button for 1.5 seconds at least. The display will
revert to the current reading,
7
5. DATALOGGER
5-1 Preparation before execute datalogger function
a. Insert the SD card
Prepare a " SD memory card " ( 1 G to 16 G, optional ),
insert the SD card into the " SD card socket " ( 3-9, Fig. 1).
The front panel of the SD card should face against
the down case.
* It recommend use memory card
≦
4 GB.
b. SD card Format
If SD card just the first time use into the meter, it
recommend to make the " SD card Format " at first. ,
please refer chapter7 & 7-1, ( page 14 ) .
*
It recommend strongly, do not use memory cards that
have been formatted by other meter or by other installation
(such as camera…) .
Reformat the memory card with your meter.
*
If the SD memory card exist the trouble during
format by the meter use the computer to
reformat again can fix the problem .
c. Time setting
If the meter is used at first time, it should to adjust the
clock time exactly, please refer chapter7 & 7-2 ( page14 & 15 ).
d. Decimal for the numerical data structure of SD card is
default used the " . " as the decimal, for
example "20.6" "1000.53" . But in certain
countries ( Europe ...) is used the " , " as the
decimal point, for example " 20, 6 "
"1000,53". Under such situation, it should
change the Decimal character at first, details
of setting the Decimal point, refer to Chapter7 &
7-6, page14 & 17.
8
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