Lutron Electronics EMF-8218SD User manual

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..................................................................................................................................

2. SPECIFICATIONS........................................................................

...................................................

3. FRONT PANEL DESCRIPTION..................................................................

...........................

4. MEASURING PROCEDURE....................................................................

...........................

4-1 EMF Strength Function selection and measurement

..............................................................

4-2 Data Hold..........................................................

...........................................................

4-3 Data Record ( Max., Min. reading )...............................................................................................................

5. DATALOGGER................................................................................

......................................................

5-1 Preparation before execute datalogger function...............................................................................

5-2 Auto Datalogger ( Set sampling time ≧ 1 second ).......................

...........................

5-3 Manual Datalogger ( Set sampling time = 0 second )....................

...........................

5-4 Check time and sampling time information..........................................................................................................

5-5 SD Card Data structure..................................................................................................

6. Saving data from the SD card to the computer..................................................................

7. ADVANCED SETTING...............................................................................

...........................

7-1

SD memory card format....................................................................................................

7-2 Set clock time ( Year/Month/Date, Hour/Minute/ Second )........................................

7-3 Set sampling time ................................................................................................................

7-4 Auto power OFF management .....................................................................................

7-5 Set beeper Sound ON/OFF............................................................................................

7-6 Decimal point of SD card setting................................................................................................

8. POWER SUPPLY from DC ADAPTER.....................................................

...........................

9. BATTERY REPLACEMENT..............................................................................................

10. RS232 PC serial interface.................................................................................

...........................

11. PATENT.................................................................................................................................................

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.

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

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.

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.

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

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.

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,

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.

Table of contents

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