Lutron Electronics EMF-839 Bedienungsanleitung

3 axis

100 KHz to 3 GHz Radio Frequency Radiation Meters

Electromagnetic Field strength measurement

RF ELECTROMAGNETIC

FIELD METER

Model : EMF-839

Your purchase of this RF

EMF METER marks a

step forward for you

into the field of

precision measurement.

Althou

h this METER is

a complex and delicate

instrument, its durable

structure will allow

many years of use if

proper operatin

techniques are

developed. Please read

the followin

instructions carefully

and always keep this

manual within easy

reach.

OPERATION MANUAL

TABLE OF CONTENTS

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

2. APPLICATIONS........................................................... 2

3. SAFETY INSTRUCTIONS..............................................

4. SPECIFICATIONS........................................................4

5. FRONT PANEL DESCRIPTION.......................................7

6. MEASUREMENT CONSIDERATION................................8

7. MEASURING PROCEDURE............................................9

7-1 Buttons instructions..............................................9

7-2 Symbols & units of display....................................

7-3 Unit Selection...................................................... 11

7-4 Frequency Team Of Selection................................11

7-5 To see the individual axis' measurin

EMF value.....

7-6 Alarm Limit Settin

and Alarm start.......................

7-7 Data Hold............................................................

7-8 Data Record (Max., Min. readin

)..........................

7-9 Peak Hold............................................................13

7-10 Data Lo

er.......................................................13

7-10-1 How to recordin

data.................................14

7-10-2 How to sendin

data...................................15

7-10-3 How to show sample time...........................

7-10-4 How to show date and time.........................18

8. INTERIOR SETTING MODE.......................................... 19

8-1 Check Memory Space.............................................20

8-2 Clear Memory........................................................20

8-3 Date/Time Settin

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

8-4 Sample Time Settin

..............................................21

8-5 Auto Power Off Default Settin

...............................21

8-6 Escape from the SETTING function.........................21

9. RS232 PC SERIAL INTERFACE......................................

10. BATTERY REPLACEMENT............................................24

11. SYSTEM RESET......................................................... 24

12. OPTIONAL ACCESSORIES...........................................25

1. FEATURES

* 3 Axis probe.

* Radio frequency electromagnetic field tester.

* Wide measuring frequency ranges, 100 KHz to 3 GHz.

* EMF-839 is used for broadband devices of monitoring

the wide range radio frequency electromagnetic field

value.

* For precision measurement consideration, the meter

is included two probes :

EP-04L ( Low frequency Probe, 100 KHz to 100 MHz )

EP-03H ( High frequency Probe, 100 MHz to 3 GHz )

* Unit : V/m, W/m^2, mW/cm^2.

* Alarm setting function can warn the user if the

measuring antenna is too near the strong radiation

sources, the buzzer will sound to remind the user.

* Peak hold function to latch peak value.

*Data hold function to lock the current reading.

* RS232 computer interface.

* Real time data logger, build in clock ( hour-MIN-sec.,

year-month-date ).

* Auto or manual data record, 16,000 Data logger no.

* Wide sampling time adjustment range from one second

to 8 hours 59 minutes 59 seconds.

* Heavy duty hard carry case.

* Large size LCD with contrast adjustment, which can fit

best viewing angle.

* Microcomputer circuit provides special function & offers

high accuracy.

* Powered by 006P DC 9V battery or DC 9V adapter.

2. APPLICATIONS

This meter is specially developed for measuring or

monitoring electromagnetic field, for example:

cell-phone station, hospital equipment, radar ,

micro-wave oven, radiation work, TV antenna , Radio

station , welding equipment , baking- equipment,

television , computer , factory, laboratory , and other

environment...etc.

3. SAFETY INSTRUCTIONS

Danger

* For worker's safety, be aware that persons with

electromagnetic implant ( e.g. cardiac-pacemarker ) are

subject to especial danger in some case.

* Particular to observe the local safety regulations of the

operator of the equipment.

* Before using the device, it need to know that how to

setting " alarm-limit " value ( refer to page 12 ).

Attention

* Claims by some scientists that long term exposure to

electromagnetic field may be the cause of childhood

leukemia & other forms of cancer.

* Complete answers to any of these and related

questions are not currently available. At the present

time the most common practice is to avoid excess

exposure over long period of time.

* Complete answers to any of these and related

" Prudent Avoidance " as stated by the Environmental

Protection Agency(EPA) USA is recommended.

* According to ICNIRP of reference levels to time-varying

electromagnetic fields, The E-field strength levels are:

General public

Frequency range e-field strength (V/m)

3 to 150 kHz 87

0.15 to 1 MHz 87

1 to 10 MHz 87/f^1/2

10 to 400 MHz 28

400 to 2000 MHz 1.375 x f^1/2

2 to 300 GHz 61

Occupational

Frequency ran

e e-field strength (V/m)

65 to 1000 kHz 610

1 to 10 MHz 610/f

10 to 400 MHz 61

400 to 2000 MHz 3 x f^1/2

2 to 300 GHz 137

4. SPECIFICATIONS

4-1 General Specifications

Circuit Custom one-chip of microprocessor LSI

circuit.

Display LCD size : 58 mm x 34 mm.

Measurement V/m, mW/cm^2, W/m^2.

Unit

Accuracy < 2 dB.

Probe structure 3 Axis.

Probe Type EP-03H : 100 MHz to 3 GHz.

Selection EP-04L : 100 kHz to 100 MHz.

Probe Input 50 OHM

Impedance

Frequency EP-03H: 900 MHz, 1 GHz, 1.8 GHz,

Selection 2.4 GHz, 2.45 GHz, 3 GHz.

Points EP-04L: 100kHz, 200kHz, 500kHz, 1MHz,

10MHz, 13.56MHz, 100MHz.

Sensor Semiconductor

Structure

Sampling Time Manual Press the data logger button

of Data Logger once will save data one time.

* Set the sampling time to

0 second

Auto 1 sec to 8 hour 59 min. 59 sec.

Data Hold Freeze the display reading.

REC Function Record Maximum & Minimum value.

Power off Auto shut off saves battery life or

manual off by push button.

* Can default auto power off or manual

power off.

* When default auto power off ,

power will off automatically after

10 min. if no button be pressed.

Peak Hold To latch the peak measurement value.

Alarm Setting Buzzer will sound when display over the

setting value.

Sampling Time Approx. 1 second.

Low Battery When display show Low battery

Indicator Indicator, it should chan

e the batteries.

Data Output RS 232 PC serial interface.

Operating 0 to 50 .℃

Temperature

Operating Less than 80 %RH.

Humidity

Power Supply DC 9 V battery ( 006P )

* Heavy duty or Alkaline type.

DC 9V adapter input.

Power Current Approx. DC 5.95 mA

Weight 523 g/ 1.16 LB.

Dimension

Main instrument :

200.0 x 76.2 x 36.8 mm

Probe :

70 mm ( diameter) x 290 mm ( length)

Accessories Instruction manual.........................1 PC

Included EP-03H Probe.............................. 1 PC

EP-04L Probe................................

1 PC

Memory card for EP-03H................

1 PC

Memory card for EP-04L.................1 PC

Hard carrying case.................. 1 PC

DC 9V power adapter.....................1 PC

Optional RS232 cable, UPCB-02.

Accessories USB cable, USB-01.

Data Acquisition software, SW-U801-WIN.

4-2 Electrical Specifications ( 23 ± 5 )℃

Strength Range Resolution Effective Value

0 to 200.00 V/m 0.01 V/m > 1 V/m

0 to 99.999 W/m^2 0.001 W/m^2 > 0.03 W/m^2

0 to 9.9999 mW/cm^2 0.0001 mW/cm^2 > 0.0003 mW/cm^2

Frequency Range Accuracy Test Point Probe NO.

400 KHz to 100 MHz < 2 dB 30 V/m EP-04L

50 MHz to 2.5 GHz < 2 dB 60 V/m EP-03H

Remark:

* Measurement under other frequency range ( below

400 KHz and over 2.5 GHz ), the reading value just

for reference only.

* For precision measurement consideration, it should

select the " Frequency Team point " near the

frequency value of measuring object.

5. FRONT PANEL DESCRIPTION

Fig. 1

5-1 Display 5-11 Probe Input Socket

5-2 Power Button 5-12 Probe Memory Card

5-3 Hold / Esc Button 5-13 DC Adapter Input Socket

5-4 REC / Enter Button 5-14 RS-232 Output Terminal

5-5 Freq. Team Select Button 5-15 LCD contrast adj.

5-6 Unit Button 5-16 Battery Cover

5-7 Peak Hold Button 5-17 Stand

5-8 Alarm Set / Start Button 5-18 Reset Button

5-9 Time / Send Button 5-19 Probe Sensing Head

5-10 Logger / Set Button 5-20 Probe Plug

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