MRC TM-196 User manual

RF three-Axis
Field Strength Meter
TM-196
User’s
Manual
PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION
3, Hagavish st. Israel 58817 Tel: [phone], Fax: [phone]
[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

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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!

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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”.

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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

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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.

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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.

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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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7 Identifying Parts
1. RF three-Axis Sensor.
2. Liquid-crystal LCD.
3. Hold /ALARM / Up Button.
4. MAX / AVG/ Right Button.
5. UNIT / ENTER Button.
6. XYZ / MEM / Down Button.
7. Power Button.
8. REC/ time / Leftward Button.
9. SET Button.
10. Tripod mounting screw.
11. Battery Cover.

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8 LCD Description
1. Primary Display
2. Hold symbol
3. Analogue bar graph
4. MAX symbol
5. AVG symbol
6. Low battery symbol
7. x1x10x100 unit
8. X.Y.Z unit
9. ALARM sound
10. mV/m, V/m (E)
11. µA/m , A/m unit (H)
12. µW/m2/ µW/cm2unit
13. E Symbol
14. Auto power off symbol
15. Time unit
(month: day)
(hour: minute)
(second)
16. MEM reading
symbol
17. SET symbol
18. REC symbol
19. CAL symbol
20. Secondary
Display
21. BUZZER symbol
22. Decimal point

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9 Specifications
9.1 General specifications
Display type:Liquid-crystal (LCD), 4-1/2 digits maximum reading
19999.
Measurement method：Digital, Tri axis measurement.
Directional characteristic: Isotropic, Tri axis.
Measurement range selection: one continuous range.
Display resolution : Display
resolution:0.1mV/m, 0.01V/m, 0.1µA/m, 0.1mA/m,0.001µW/ m2,
0.01mW/ m2, 0.001µW/cm2
Setting time: typically 1.5s (0 to 90%measurement value.)
Sample rate: 1.5 times per second.
Sample rate: 3times per second.
Audible alarm: Buzzer.
Units: mV/m, V/m, µA/m, mA/m, µW/m2, mW/m2, µW/cm2
Display value: Instantaneous measured value, maximum value,
average value, or maximum average value.
Alarm function : adjustable threshold with ON / OFF

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Calibration factor CAL: adjustable
Manual data memory and read storage:
200 data sets.
Batteries : 9V NEDA 1604, IEC 6F22 or
JIS 006P
Battery life: Approximate 15 hours.
Auto power off: Default time 15 minutes.
Adjustable threshold 0~99 minutes.
Operating temperature range: 0°C to +
50°C.
Operating humidity range : 25% to 75 %
RH
Storage temperatures range: -10°C to
+60°C.
Storage humidity range: 0% to 80% RH.
Dimensions: 370 (L)x80(W)x80(H) mm.
Weight (including battery): Approx.400g.
Accessories: User’s manual, 9V battery,
Carrying case.
EMC
This tester was designed in accordance
with EMC Standards in force and its
compatibility has been tested in
accordance with EN61326-1 (2006).

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9.2 Electrical specifications
Unless otherwise stated, the following
specifications hold under the following
conditions:
The meter is located in the far field of a
source; the sensor head is pointed
towards the source.
Ambient temperature: +23 °C ±3°C.
Relative air humidity 25%~75%
Sensor type: electrical field (E).
Frequency range: 10MHz ~ 8 GHz.
Specified measurement range:
CW signal (f >50MHz): 38mV/m to
11.00 V/m, 53.0uA/m to 28.64mA/m
0.1uA/m2to 309.3mW/m2,0uW/cm2to
30.93mW/cm2
Dynamic range: Typically 75dB
Absolute error at 1V/m and 2.45GHz:
± 1.0 dB.
Frequency response:
Sensor taking into Account the typical
CAL factor:
±2.4dB(50 MHz to 1.9 GHz，3.5
GHz to 8GHz).
±1.0dB(1.9 GHz to 3.5GHz).
Isotropy deviation: Typically ± 1.0 dB
(2.45GHz).

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Overload limit: 0.083 mW/cm2,(17.7
V/m) per axis.
Overload limit: (0 to50°C): ± 0.2dB.
9.3 Units of measurement
The meter measures the electrical
component of the field; the default units
are those of electrical field strength (mV/m
or V/m). The meter converts the
measurement values to the other units of
measurement, i.e. the corresponding
magnetic field strength units (µA/m or
mA/m) and power density units (µW/m2,
mW/m2 or µW/cm2) using the standard
far-field formulate for electromagnetic
radiation.
The conversion is invalid for near-field
measurements, as there is no generally
valid relationship between electrical and
magnetic field strength in this situation.
Always use the default units of the sensor
when making near-field measurements.
9.4 Result modes
The bar graph display always shows the
instantaneous measured dynamic range
value. The digital display shows the result

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according to one of three modes, which
can be selected.
Instantaneous: The display shows the last
value measured value measured by the
sensor, no symbol is displayed.
Maximum instantaneous (MAX):
The digital display shows the highest
instantaneous value measured, the “MAX
“symbol is displayed.
Average (AVG): The digital display shows
the average value measured, the “AVG”
symbol is displayed.
Instantaneous mode is the default setting
when the meter is turned on. The following
graph shows of Instantaneous (actual),
MAX (hold), AVG and
MAX/AVG:
Measurement Procedures and
Preparation
Battery loading: Remove the battery cover

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on the back and put a 9V battery inside.
Battery replacement: When the symbol of
“” appears on the LCD display, the
battery should be replaced with a new
one.
The battery symbol will be displayed on
the LCD, this is a battery low indicator.
9.5 POWER key：
Press “ ” key turn ON the meter.
Press “ ” key again to turn power
OFF.
9.6 Data hold key:
Press the “ ” key to go into hold mode,
and “HOLD” appears on the screen to
allow you to read the data.
Press “ ” this key once again to
deactivate it.
>> >>> >

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9.7 Units key:
Change units with the “UNITS” key as
follows Electric field strength (V/m)
Computed magnetic field strength (mA/m).
Computed power density (mW/m2 ).
Computed power density (μW/cm2 ).
Press “ ” key to change the units:
mV/m, V/m, µA/m, mA/m, µW/m2,mW/m2,
µW/cm2.
9.8 MAX / AVG Record:
Press “ ” key to switch to the next
display. The display switches from MAX to
AVG to MAX/AVG and back to MAX.
Press and hold “ ”key for 3 seconds to
disable this function.
The maximum storage is up to 99 minutes
and 99 seconds
After this period of time, updating will be
completed automatically and then the LCD

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displays .
9.9 Manual data memory storing
Press“ ” key, the meter will save the
current measured result, and REC with a
number 001~200 will appear.
Manual data memory Storing: 200 data
sets.Over load Indication: “OL”.
9.10 XYZ/CALL:
Press “ ” this key to change sensor
axis selector :” All axis ”→“ X axis “→“ Y
axis ”→“ Z axis ”.
9.11 Alarm ON/OFF Setup
Press hold “ ” and “ ” key to
switch the alarm function on The “ALARM”
symbols in the display indicates that the
alarm function is on. Press hold “ ”
and“ ” key to turn off the alarm