MRC EMF-840 Manuel utilisateur

RF and LF measurement

RF Strength, LF Magnetic Fields/Electric Fields Meter

Your purchase of this Personal

Multi-Field EMF Meter Strength

Meter 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

Multi-Field EMF Meter

Model : EMF-840

PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION

3, Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529

[email protected]

MRC. 3.20

TABLE OF CONTENTS

1. FEATURES..................................................................................................................................

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

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

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

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

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

4-1 Measurement LFMagnetic Fields/Electric Field, RF EMF Strength

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

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

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

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

4-4 LCD brightness select...............................................................................................................

4-5 Sound Alert Table ...............................................................................................................

5. ADVANCED SETTING..........................................................................................................

5-1 Auto power OFF management...........................................................................................

5-2 Set beeper sound ON/OFF ................................................................................................................

5-3 Set LF UNIT ........................................................................................................................................

5-4 Set EMF UNIT...............................................................................................................................................

6. POWER SUPPLY ...................................................................................................................................

7. BATTERY REPLACEMENT................................................................................................................................................

1. FEATURES

* RF application :

For electromagnetic field strength measurement including mobile phone

base station antenna radiation, RF power measurement for transmitters,

wireless LAN ( Wi-Fi ) detection/ installation, wireless communication

applications ( CW, TDMA, GSM, DECT ) and microwave leakage.

* RF power measurement Range/Resolution :

Frequency range : 50 MHz to 3.5 GHz.

30.00 mV/m to 11.00 V/m, 0.001,0.01, 0.1 mV/m,V/m.

0.02 uW/cm2 to 32.09 uW/cm2, 0.01 uW/cm2.

0.02 µW/m2 ~ 320.9 mW/m2, 0.001,0.01 , 0.1 µW/m2,mW/m2

0.02 mA/m to 29.17 mA/m, 0.01 mA/m.

* LF application :

The EMF tester ( LF ) is designed to provide user a quick reliable and easy

way to measure

electromagnetic field radiation levels around power line , home appliances

and industrial devices.

* Magnetic Fields Measurement range/Resolution:

Frequency range : 50 Hz to 60 Hz.

mG : 200.0 to 2000, 0.1 mG, 1 mG.

uT: 20.00 to 200.0, 0.01 uT, 0.1 uT.

* Electric Fields Measurement range/Resolution :

Frequency range : 50 Hz to 60 Hz.

50 V/m to 2000 V/m, 1 V/m.

* 2.4" TFT LCD display to easy reading.

Light weight and small size case design are suitable for handling with

one hand.

* Wristlet design provides extra protection to the

instrument especially for user one hand operation.

* Built- in microprocessor circuit assures excellent performance and accuracy.

* Concise and compact buttons arrangement, easy operation.

* Memorize the maximum and minimum value with recall.

* Hold function to freeze the current reading value

* Power Supply DC 1.5V, UM4-AAA battery x 3 PCs.

2. SPECIFICATIONS

2-1 General Specifications

Display LCD view size : 2.4" TFT LCD.

Measurement EMF ( Electromagnetic field tester. )

Band width RF:50~3.5 MHz, LF: 50/60 Hz

Number Axes Single Axis.

Operating Max. 80% RH.

Humidity

Operating 0 to 50 ℃ ( 32 to 122 ℉ )

Temperature

Over Input Indication of "- - - - "

Display

Data Hold Freeze the display reading.

Memory Recall Maximum & Minimum value.

Sampling Time Approx. 1 second.

of Display

Power Supply DC 1.5V ,UM4-AAA battery X 3 PCs ( DC 4.5 V battery )

Power Approx. DC 26 mA ~ 49 mA

Consumption (0-3rd-order LCD Backlight brightness)

Power off Auto shut off saves battery life or

manual off by push button.

Weight 160g (battery included)

Dimension HWD 107 x 45 x 20 mm (4.2 x 1.8 x 1.2 inch).

Standard

Instruction Manual.............................................................................

1 pc

Accessory

Optional Soft carrying case, CA-05A.

Accessories

2-2 Electrical Specifications (23±5

℃

, 25% ~ 75 % RH)

RF EMF tester METER

Unit Range Resolution Absolute error

mV/m,V/m 30.00mV/m ~ 11.00 V/m 0.001,0.01 , 0.1 1.0dB

µW/cm2 0.02 ~ 32.09 µW/cm2 0.01 , 0.1 @

µW/m2,mW/m2 0.02 µW/m2 ~ 320.9 mW/m2 0.001,0.01 , 0.1 at 1 V/m & 900 MHz

mA/m 0.02 ~ 29.17 mA/m 0.01 , 0.1

LF - Magnetic Fields tester METER

Unit Range Resolution Accuracy

µT20.00 ~ 200.0 µT 0.01 µt , 0.1 µT ±12% rdg +5 dgt

( micro Tesla) @ at 50 Hz or 60 Hz

mG 200.0 ~ 2000 mG 0.1 mG , 1 mG

( milli Gauss)

LF- Electric Field tester METER

Unit Range Resolution Accuracy

V/m 50 V/m ~ 2000 V/m 1 V/m ±7% rdg + 20 dgt

@ at 50 Hz or 60 Hz

@ 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. 3-10 Wristlet

3-2 Power Button 3-11 Electric Field detector

3-3 Hold Button 3-12 RF detector

3-4 REC (Enter) Button 3-13 LF detector

3-5

▲

Button ( SET Button)

3-6

▼

Button

3-7 Tripod Fix Nut

3-8 Battery Cover Screws ( Logger Button)

3-9 Battery compartment/Cover

4. MEASURING PROCEDURE

4-1 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 UNIT select .

LF Unit select please refrence 5-3 ( Page 9)

EMF Unit select please refrence 5-4 ( Page 10)

LF-Electric Field Measuremen value

The Meter measures the electric field (Electrical Power)

in the atmosphere of the sensor’s surroundings

Remark:

* Hold the meter at arm’s length.

* The sensor measur orientation please refrence meter case back.

* According the indicated direction of the electric field sensor

to Perform test, refrrence figure 2.

figure 2.

LF - Magnetic Field Measuremen value (Magnetic field)

Point the front section of the meter to ward the desired electromagnetic

field to take a measurement.

The meter can simultaneously displays the electromagnetic field readings

of individual (X,Y,Z) and the aggregated Magnetic field readings.

remark:

* If the meter is moved quickly, may be field strength values will be displayed

which do not reflect the actual field conditions.

Measurement Note:

* Hold the meter at arm’s length.

* during the measurement please keep the meter steady .

* If the test field conditions are unknown, please Make several measurements

at various locations in the work place or other areas of interest ,

this is particularly important.

RF strength meter Measuremen value

Point the front face of the meter toward the desired RF field to take

a measurement.

remark:

* If the meter is moved quickly, may be field strength values will be displayed

which do not reflect the actual field conditions.

Measurement Note:

* Hold the meter at arm’s length.

* The meter sensoring area, Point toward signal source, refrence figure 3.

* during the measurement please keep the meter steady .

* If the test field conditions are unknown, please Make several measurements

at various locations in the work place or other areas of interest , this is

particularly important.

figure 3.

4-2 Data Hold

During the measurement, press the " Hold Button " ( 3-3,

Fig. 1 ) once will hold the measured value & the " HOLD Symbol " indicator

will be light, Press the " Hold Button " once again will release the data

hold function , ( 3-3, Fig. 1) red led indicator 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,

red led indicator will be quenched

4-4 LCD brightness select

Depending on the brightness of the environment, can use the "Backlight Button "

( 3-2, Fig. 1 ) select from 3rd-order LCD Backlight brightness.

4-5 Sound Alert Table

Magnetic Fields

Electrical Fields RF Strength lcdbar color indicator

Low ≦ 10 ≦ 500 V/m ≦ 0.9 mW/m^2 green

Medium >10 mG >500 V/m >1 mW/m^2 yellow

High >100 mG >1000 V/m >10 mW/m^2 red

Note:

* Alarm beeper sounds when readings enter the red region

* Alert Table for reference

5. ADVANCED SETTING

Under do not execute the Datalogger function,

press the " SET Button " ( 3-5, Fig. 1 ) continuously at

least 1.5 seconds will enter the " Advanced Setting " mode.

then press the " SET Button " ( 3-5, Fig. 1 ) once a while display will show :

POFF........

Auto power OFF management

BEEP........

Set beeper sound ON/OFF

LF UNIT............

Set LF unit .

EMF UNIT........ Set EMF unit .

Remark :

During execute the " Advanced Setting " function,if press

" Power Button " ( 3-2, Fig. 1 ) once will exit the " Advanced

Setting " function, the lcd display will return to normal screen.

5-1 Auto power OFF management

When the " AUTO POWER OFF " text is mark (white color)

1) Press "Enter(REC button)" into the setting function,then use the

▲

Button" ( 3-5, Fig. 1 ) or "

▼

Button " ( 3-6, Fig. 1 ) to select the

upper value to " Yes " or " No ".

Yes - Auto Power Off management will enable.

No - Auto Power Off management will disable.

2) After select the upper text to " Yes " or " No ", press the

" Enter(REC Button) " ( 3-4, Fig. 1 ) will save the setting

function with default and Return to the previous leve.

3) After press the " Power Button " ( 3-2, Fig. 1 )

will back to nomal measurement

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