MRC TM-196 Manual de usuario

RF three-Axis

Field Strength Meter

TM-196

User’s

Manual

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

Axis RF Meter Quick Start Guide .................... 1

1Introduction ............................................... 2

2Simple a method of operation.................. 2

3Fundamentals............................................ 3

4Electric field strength (E).......................... 3

4.1Magnetic field strength (H)......................... 3

4.2Power density (S) ...................................... 4

4.3The characteristic of electromagnetic fields

.............................................................……….4

5Application................................................. 5

6Features ..................................................... 6

7Identifying Parts ........................................ 8

8LCD Description........................................ 9

9Specifications.......................................... 10

9.1 General specifications............................. 10

9.2 Electrical specifications........................... 12

9.3 Units of measurement............................. 13

9.4 Result modes.......................................... 13

Measurement Procedures and Preparation . 14

9.5 POWER key............................................ 15

9.6 Data hold key.......................................... 15

9.7 Units key: ................................................ 16

9.8 MAX / AVG Record ................................. 16

9.9 Manual data memory storing .................. 17

9.10 XYZ/CALL............................................. 17

9.11 Alarm ON/OFF Setup ............................ 17

9.11.1 Viewing Data Records........................ 18

9.12 Cancel the automatic power off/on........ 18

9.13 Clock LCD Display ................................ 19

10 Setup Mode.............................................. 19

10.1 Clock Setup-1 ....................................... 20

10.2 Setting the alarm limit value (ALARM)-2

……………………………………….......21

10.3 DEL data logger memory setup-3 ......... 22

10.4 Analogue bar graphsetup-4................... 23

10.5 Auto Power Off Time function setup-5... 23

10.6 Setting the calibration factor (CAL)-6 .... 24

11 Calibration factor is important for the

measurements......................................... 25

11.1 Short-term measurements..................... 26

11.2 Short-term measurements..................... 26

11.3 Long-term exposure measurements...... 27

12 Battery replacement................................ 27

13 External DC Power.................................. 28

14 Safety Precaution.................................... 29

15 SAFETY INFORMATION.......................... 30

16 SAFETY INFORMATION.......................... 31

17 End of life................................................. 32

EN-1

Axis RF Meter Quick Start Guide

This meter has many capabilities,

including memory, alarm, date/time,

average etc. which will require some study

of the manual to use properly. However,

you can quickly and easily begin making

measurements right out of the box. Just

follow these simple steps:

1. Insert 9V battery.

2. Turn meter on with GREEN button.

3. Press XYX/MEM button until all three

(XYZ) letters are displayed on the

screen (to the left of the main number.

4. Press UNIT/ENTER button until the

desired units are displayed below the

main number (we recommend using

mV/m… and we recommend a

maximum level of 614 mV/m for

prolonged exposure).

You are now ready to make your first

measurements!

EN-2

1 Introduction

This meter is designed for measuring and

monitoring Radio–Frequency

electromagnetic field strength. The meter

is calibrated precisely over the frequency

range of 10MHz~8GHZ.

2 Simple a method of operation

Press “power” button on.To change

measuring unit (mV/m), push UNIT”button to

change the unit.Electric field strength

(V/m).Computed magnetic field strength

(mA/m).Computed power density

(mW/m2).Computed power density

(μW/cm2).

Press "xyz” this key to change sensor axis

selector:

“All axis ” →“X axis” →“Y axis” →“Z

axis”.

EN-3

3 Fundamentals

Electromagnetic pollution

This meter is used to indicate electromagnetic

pollution generated artificially. Wherever there

is a voltage or a current, electric (E) and

magnetic (H) fields arise. All types of radio

broadcasting and TV transmitters produce

electromagnetic fields, and they also arise in

industry, business and the home, where they

affect us even if our sense organs perceive

nothing.

4 Electric field strength (E)

Afield vector quantity that represents the force

(F) on an infinitesimal unit positive

test charge (q) at a point divided by that charge.

Electric field strength is expressed in units of

volts per meter (mV/m). This meter measures

electric field strength directly.

4.1 Magnetic field strength (H)

Afield vector that is equal to the magnetic flux

density divided by the permeability of the

medium Magnetic field strength is expressed in

units of amperes per meter

(A/m). In far field situations, one can

EN-4

calculate the magnetic field for the electric

field value. This meter can display the

calculated magnetic field strength.

4.2 Power density (S)

Power per unit area normal to the direction

of propagation, usually expressed in units

of watts per square meter (W/m2) or, for

convenience, units such as mill watts per

square centimeter (mW/cm2)

4.3 The characteristic of electromagnetic

fields

Electromagnetic fields propagate as

waves and travel at the speed of light (C).

The wavelength is proportional to the

frequency.

λ(wavelength) = C (speed of light) /

f (frequency)

If the distance to the field source is less

than three wavelengths, then we are

usually in the near field. If the distance is

more than three wavelengths, the far-field

conditions usually hold.

In near field conditions, the magnetic field

value cannot be calculated from the

electric field value. This meter is designed

for reliable far field measurements only.

EN-5

5 Application

Quite often routine, maintenance and

service work has to be done in areas

where active electromagnetic fields are

present, e.g. in broadcasting stations,

etc. Additionally, other employees may

be exposed to electromagnetic radiation.

In such cases, it is essential that

personnel be not exposed to dangerous

levels of electromagnetic radiation, such

as:

High frequency (RF) electromagnetic

wave field strength measurement.

Mobile phone base station antenna

radiation power density measurement.

Wireless communication applications

(CW, TDMA, GSM, DECT).

RF power measurement for transmitters.

Wireless LAN (Wi-Fi) detection,

installation.

Spy camera, wireless bug finder.

Cellular /Cordless phone radiation safety

level.

Microwave oven leakage detection.

Personal living environment EMF safety.

EN-6

6 Features

The meter is a broadband device for

monitoring high- frequency radiation in

the range from10MHz to 8GHz

The non-directional electric field antenna

and high sensitivity also allow

measurements of electric field strength in

TEM cells and absorber rooms.

The unit of measurement and the

measurement types have been selected

to expressed in units of electrical and

magnetic field strength and power

density.

At high frequencies, the power density is

of particular significance. It provides a

measure of the power absorbed by a

person exposed to the field. This power

level must be kept as low as possible at

high frequencies.

The meter can be set to display the

instantaneous value, the maximum value

measured or the average value.

Instantaneous and maximum value

measurements are useful for orientation,

e.g. when first entering an exposed area.

EN-7

For isotropic measurements of

electromagnetic fields.

Non-directional (isotropic) measurement

with three-channel measurement

sensor.

High dynamic range due to three-

channel digital results processing.

Configurable alarm threshold and

memory function.

Easy & safe to use

Low battery detector “ ”.

Manual data memory storing: 200 data

sets.

Memory Over load indication “OL”.

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