MRC TM-196 Скачать руководство пользователя страница 35

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EN-32

incorrectly evaluated and tend to be underrated.

Before using field strength measuring devices, you

should thus be certain that all field components to

be measured lie in the specified frequency range of

the measuring device.

17 End of life

Caution

this symbol indicates that equipment and

its accessories shall be subject to a separate
collection and correct disposal

Содержание TM-196

Страница 1: ...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 mrc mrclab com MRC 3 20 ...

Страница 2: ...f electromagnetic fields 4 5 Application 5 6 Features 6 7 Identifying Parts 8 8 LCD Description 9 9 Specifications 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...

Страница 3: ... 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 INFORM...

Страница 4: ...ht 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 n...

Страница 5: ... 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 ...

Страница 6: ...us even if our sense organs perceive nothing 4 Electric field strength E A field 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 A field vector that is equal to the magn...

Страница 7: ...istic 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 fie...

Страница 8: ... 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 rad...

Страница 9: ...een 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 a...

Страница 10: ...opic 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 ...

Страница 11: ... 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 ...

Страница 12: ...attery 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 m 2 µW cm2 unit 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 ...

Страница 13: ...ontinuous 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 3 times 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 Al...

Страница 14: ...d 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 ac...

Страница 15: ... 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 m2 to 309 3mW m2 0uW cm2 to 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...

Страница 16: ...agnetic 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...

Страница 17: ...tal 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 c...

Страница 18: ...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 ...

Страница 19: ... 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 ...

Страница 20: ...r 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 ...

Страница 21: ...e the next or previous records Press key to close the setup exit the mode 9 12 Cancel the automatic power off on The default setting is auto power off the time is set for 15 minutes Press hold key and press key to disable the automatic power off the symbol of will be disappeared on the LCD display Press hold key and key again to enable the automatic power on ...

Страница 22: ... of the Year Month Date hour and Second This meter s clock uses 24 hour time setting Default time mode setting is 2010 01 07 00 02 00 10 Setup Mode Press hold key first and button to enter the Setup Mode Press key to change setup function Setup function see Note1 Push key to save setup data Note1 you can set up 6 different functions in setup mode Clock Setup ALARM setup 2 Clear data logger memory ...

Страница 23: ... Clock Setup 1 Press hold key first and key to enter the Setup Mode Press or key to select option adjust Press or key to change the date and time hour day month year minute Press key to save and exit This meter clock is 24 hour time setting Date Time default Format 2009 12 21 12 12 Year Format 2000 2099 display as 00 99 ...

Страница 24: ...edited in the displayed V m unit The ALARM setting range is from 0 001 to 999 9V m ALARM default is set at 999 9V m Alarm limit function is only used for total three axial value Comparator Press hold key first and key to enter the Setup Mode Press key again to enter the alarm setting mode Press key to move decimal Press key to select the desired setting value Press key and key to change digit ...

Страница 25: ... store the new setting value and exit 10 3 DEL data logger memory setup 3 Press hold key first and key to enter the Setup Mode Press key twice to enter the default display Press or key to select Press key to delete the memory and exit Press or key to ...

Страница 26: ...key to enter the Setup Mode Press key for three times to enter the analogue bar graph setting mode The graph unit is flashing displayed X1 X10 X100 Press or key to select the value X1 X10 X100 Press key to save and exit 10 5 Auto Power Off Time function setup 5 Press hold key first and key to enter the Setup Mode ...

Страница 27: ...key to change the 00 99 minutes Press key to save and exit 00 Auto power off disable 99 Maximum auto power off time 10 6 Setting the calibration factor CAL 6 Press hold key first and key to enter the Setup Mode Press key for five times to display the CAL SET the default factor The CAL setting range is from 0 10 to 9 99 ...

Страница 28: ... multiplied by the value of CAL that has been entered and the resulting value is displayed The CAL setting range is from 0 10 to 9 99 The CAL factor is often used as a means of entering the sensitivity of the field sensor in terms of its frequency response in order to improve measurement accuracy The following effect will be noted with all field strength meters If the sensor is moved quickly exces...

Страница 29: ...1 2 Short term measurements Procedure Hold the meter at arm s length Make several measurements at various locations around your work place or the interested areas as described above This is particularly important is the field conditions are unknown Pay special attention to measuring the vicinity of possible radiation sources Apart from active sources those components connected to a source may also...

Страница 30: ...nts at those points where parts of your body are nearest to the source of radiation Note Use the Average or Max average modes only when the instantaneous measurement values are fluctuating greatly You may fix the meter to a wooden or plastic tripod 12 Battery replacement waring If the symbol appears on the LCD please replace the battery immediately Turn off the instrument Remove the battery cover ...

Страница 31: ...EN 28 13 External DC Power External AC to DC adapter Voltage 9VDC 8 14VDCMax Supply current 300mADC Socket pin Positive Ground Casing External Diameter 6 3mm internal Diameter 2 0 mm ...

Страница 32: ...ing the instrument use a soft dry cloth Never use a wet cloth solvents or water etc Operation Altitude Up to 2000M Operating Environment Indoors use This instrument has been designed for being used in an environment of pollution degree 2 ...

Страница 33: ...s the meter is switched on Change the battery if the symbol is displayed In the case of prolonged storage it is preferable to remove the battery from the meter Avoid shaking the meter particularly in the measurement mode The specified limits outside and improper handling may adversely affect the accuracy and function of the meter ...

Страница 34: ...rs e g reflective objects such as a metallic fence can cause a local amplification of the field Be aware that the field strength in the near vicinity of radiators increases proportionally to the inverse cube of the distance This means that enormous field strengths can result in the immediate vicinity of small radiation sources e g leak in wave guides inductive ovens Field strength measuring device...

Страница 35: ...suring devices you should thus be certain that all field components to be measured lie in the specified frequency range of the measuring device 17 End of life Caution this symbol indicates that equipment and its accessories shall be subject to a separate collection and correct disposal ...

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