Manual TM-195
Contents
1. You may fix the meter to a wooden or plastic tripod 25 TENMARS 14 Safety Information TM 195 CAUTION Before making a measurement check if the low battery symbol is shown on the display as soon as 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 atmospheric condition outside specified limits and improper handling may adversely affect the accuracy and function of the meter 26 TENMARS 15 Safety Information A DANGER In some cases work in the vicinity of powerful radiation sources can be a risk to your life Be aware that persons with electronic implants e g cardiac pacemakers are subject to particular dangers in some cases Observe the local safety regulations of the facility operation Observe the operating instructions for equipment which is used to generate conduct or consume electromagnetic energy Be aware that secondary radiators e g reflective objects such as a metallic fence can cause a local amplification of the field Be aware that the field strength in proximity to 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 strength2. If the sensor is moved quickly excessive field strength values could be displayed This effect is caused by electrostatic charges Recommendation Hold the meter steady during the measurement TM 195 12 Short term measurements Application Use either the instantaneous or the Max instantaneous mode if the characteristics and orientation of the field are unknown when entering an area exposed to electromagnetic radiation 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 if the field conditions are unknown and possibly dangerous Pay special attention to measuring the vicinity of possible radiation sources Apart from active 24 TENMARS TM 195 sources those components connected to a source may also act as radiators For example the cables used in diathermy equipment may also radiate electromagnetic energy Note that metallic objects within the field may locally concentrate or amplify the field from a distant source A 13 Long term exposure measurements Location Place the meter between yourself and the suspected source of radiation Make measurements 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
3. 1 0 dB 1 9 GHz to 3 5GHZ e isotropy deviation Typically 1 0 dB f 2 45GHZ e Overload limit 0 42 mW cm 11 V m per axis e Overload limit 0 to 50 C 0 2dB 8 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 11 TENMARS TM 195 field strength units uA m or mA m and power density units W m mW m or uW cm using the standard far field formulae for electromagnetic radiation 8 4 Result modes The bar graph display always shows the instantaneous measured dynamic range value The digital display shows the result according to one of three modes which can be selected Instantaneous The display shows the last value measured by the sensor no symbol is displayed Instantaneous mode is the default setting when the meter is turned on Maximum instantaneous MAX The digital display shows the highest instantaneous value measured so far the MAX symbol is displayed Average AVG The digital display shows the average value measured the AVG symbol is displayed The following graph shows of Instantaneous actual MAX hold AVG and MAX AVG T TM 195 9 Measurement Procedures and Preparation Battery loading Remove the battery cover on the back and put a 9V
4. Battery pami as 28 9 3 Units Of measure aTe A ake enan i K Sany PESONN aie otiasis menase n 28 G4 Rasut MOG ee E In k n 18 End of life SA 28 9 Measurement Procedures and Preparation T 8 1 PENVEN DO verre AE E 13 Te Dun T Eai 13 We OS ig eer ie kisoi tir akote 14 94 MAK AVS ROCHE naa 14 9 5 Manual data memory storing cce 15 9 6 Backlight Display and Reading in The Dark 16 ee KON Sn a 16 er ii 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 TENMARS TM 195 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 50Mz 3 5 GHZ 2 Simple a method of operation Press O button to power on To change measuring unit mV
5. battery inside Battery replacement When the low battery symbol of 1 4 appears on the LCD display the battery should be replaced with a new one 9 1 POWER button Press OO button to power on Press O button to power off 9 2 Data hold button Press the AB button to go into hold mode and HOLD appears on the screen to allow you to read the data 13 ke a ON TENMARS Press the A button once again to deactivate it TM 195 E HOLD 4 FALL 0808 San a 9 3 Units button Change units with the UNITS key as follows Electric field strength V m Computed magnetic field strength mA m Computed power density MW m Computed power density uW cm Press SW button to change the unit Possible units mV m V m A m mA m LW mi mW m uW cm Tada nn ALNAS LIAS DI LIYO LI LAA LILI LI z am XYZ w m DOBE ngg ODB8 9 4 MAX AVG Record Press a key to switch to the next display The display switches from MAX to AVG to MAX AVG 14 TENMARS TM 195 and back to MAX 33904399013338 330 LOU UBU HiH 99 39 Press and hold key for 3 seconds to disable this function The maximum averaging storage is up to 99 minutes and 99 seconds After this period of time updating will stop automatically and the LCD displays E 9 5 Manual data memory storing Push button the meter will save the current measured result and REC with a number 001 200
6. A W 10 Setup Mode While the meter is on press hold O gt button and 8 button to enter the setup mode Press W button to scroll through the setup function Push Qt button to save setup data Note 1 you can set up 6 different functions in setup mode Default Clock Setup setup 1 Setting the alarm limit value ALARM setup 2 Clear data logger memory setup 3 Analogue bar graph x1 x10 x100 setup 4 Auto Power Off Time setup 5 Setting the calibration factor CAL 10 1 Clock Setup 1 Press hold O gt button and press Cz button first to enable Clock Setup This meter clock is 24 hour time setting 18 TENMARS TM 195 Use P or TE to change digit Hour gt day gt Month gt year gt Minute Use O or 8 to select the digit you want to adjust Press r button to save the setting Date Time default format 2009 12 21 12 12 Year format 2000 2099 display as 00 99 EFE iii idii OS eo 1 MA quad ic c 09 38 2009 09 38 2009 89 38 CUJI 10 2 Setting the alarm limit value ALARM 2 The alarm limit value determines the level at which the alarm wil sound The alarm limit value can be edited only in the V m unit The ALARM setting range is from 0 001 to 999 9 V m ALARM default is set at 999 9 V m Alarm limit function is only used for total three axial value 19 TENMARS TM 195 While the meter in ON press and hold O button and press gt butto
7. TENMARS RF three Axis Field Strength Meter TM 195 User s Manual CE HB2TM1950005 B Aa ONOFF SON nosenie 16 Table of Contents 9 8 Alarm ON OFF Setup 59 Viewing Data Recois sainan 17 T TEARS ni kav siek opa ae 1 9 10 Clock LCD Display c cccccsssssscccsccccesssssssssceseeees 17 SIS NEYE GASTON ess 16 St Modiana ancesens 18 3 Fundamentats bestessan nannan tan tan aaa ena nannan 3 10 1 Clock Setup 1 ccccccccccssssscessscssssssssesssesssssseeeseees 18 31 Electric field strongih EE kwoasi ananenansa patan es 3 10 2 Setting the alarm limit value ALARM 2 19 3 2 Magnetic field strength H rrrrrrreerrerrere 3 10 3 DEL data logger memorysetup 3 20 3 3 Power density oi desann avan pk AAA AA A A 10 4 Analogue bar graphsetup 4 cssccsssssssssse0n 24 3 4 The characteristic of electromagnetic fields 4 10 5 Auto Power Off Time function setup S 29 PNT tk kana kk kk a W n e ee RON 9 10 6 Setting the calibration factor CAL 6 29 RAG Opener eects NN G A ki otan 6 14 Making measurements sccsssvcccssccevccessssscececeseeeees 24 S Benino Finnan R 7 oy SPE LANE AAA E A ala ni sona 24 f EOD CRS TTI veni kos m a zots pet k 8 13 Long term exposure MGaSUreMENS 25 Do no yo DO A 9 14 SAFETY INFORMATION n 26 8 1 General specifications 9 15 SAFETY INFORMATION cc ccccccccscccesccceccccssecesees 27 aae e la 16
8. and read storage 200 data sets e Batteries 9V NEDA 1604 IEC 6F 22 or JIS 006P 9 TENMARS TM 195 e Battery life Approximate 15 hours Auto power off Default time 15 minutes Adjustable threshold 0 99 minutes e Operating temperature range 0 C to 50 C e Operating humidity range 25 to 75 RH fie Storage temperatures range 10 C to 60 C e Storage humidity range 0 to 80 RH e Dimensions GO L X60 W X195 H mm e Weight including battery Approx 200g e 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 8 2 Electrical specifications e Unless otherwise stated the following specifications hold under the following conditions e The meter is located in the far field of a source the sensor head is pointed towards the source e Ambient temperature 23 C 3 C Relative air humidity 25 75 3 e Sensor type electrical field E Frequency range 50MHz 3 5GHz 10 TENMARS TM 195 m Specified measurement range e CW signal f gt 50MHz 38mV m to 20 00 V m 53 0uA m to 53 74mA m 0 1uW m to1 089W m 0 001uW cm 108 9uW cm Dynamic range Typically 75dB Absolute error at 1V m and 2 45GHz 1 0 dB m Frequency response e Sensor taking into account the typical CAL factor 2 4dB 50 MHz to 1 9 GHz
9. ea normal perpendicular to the direction of propagation usually expressed in units of Watts per square meter W m or for convenience units such as mill Watts per square centimeter mW cm TM 195 3 4 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 A 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 TENMARS TM 195 4 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 W
10. i Fi detection installation Spy camera wireless bug finder Cellular Cordless phone radiation safety level Microwave oven leakage detection Personal living environment EMF safety TENMARS TM 195 5 Features The meter is a broadband device for monitoring high frequency radiation in the range from 50MHz to 3 5GHz The non directional electric field antenna and high sensitivity also allow measurements of electric field strength in TEM cells and absorber rooms The auto ranging units 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 Non directional isotropic measurement with three axis measurement sensor High dynamic range due to three channel digital results processing Configurable alarm threshold and memory function 5 7 Easy amp safe to use Low battery detector FH Over load indication OL TENMARS TM 195 TENMARS TM 195 6 Identifying Parts 7 LCD description HOLD MAX AVG ALARM ak KIKI ETEN o WELLL A S OXYZ aliea aa a unaa e oDd BBBITBRRE 1 Prima
11. m push D button to change the unit Electric field strength V m Computed magnetic field strength mA m Computed power density MW m Computed power density uW cm Press EA this key to change sensor axis selector All axis X axis gt Y axis gt Z axis TENMARS 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 TM 195 3 1 Electric field strength E A field vector quantity that represents the force F on an infinitesimal unit positive test charge q ata 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 3 2 Magnetic field strength H A field 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 calculate the magnetic field from the electric field value This meter can display the calculated magnetic field strength 3 TENMARS 3 3 Power density S Power per unit ar
12. measuring devices can underrate pulsed signals Particularly with radar signals significant measurement errors can arise All field strength measuring devices have a limited specified frequency range Fields with spectral components outside of this frequency range are generally 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 TM 195 27 TENMARS 16 Battery replacement WARNING If the symbol l appears on the LCD please replace the battery immediatel Turn off the instrument Remove the battery cover Replace the battery Install the battery cover TM 195 Be sure to turn unit off after use to conserve battery life 17 Safety Precaution e For cleaning the instrument use a soft dry cloth Never use a wet cloth solvents or water etc e Operation Altitude Up to 2000M e Operating Environment Indoors use This instrument has been designed for being used in an environment of pollution degree 2 18 End of life Caution this symbol indicates that equipment and its accessories shall be subject to a separate collection and correct disposal 28 e A m ken ti Gin net e TENMARS ELECTRONICS CO LTD 6F 586 RUI GUANG ROAD NEIHU TAIPEI 114 TAIWAN E mail service tenmars com http Awww tenmars com
13. n to enter Setup Mode Press GS button 1 more time to enter the alarm setting mode the readout value is flashing and V m unit is displayed Press gt key to move decimal Press KOU key to select the desired digit Press TO and E button to change digit Press D key to store the new setting value and exit 3989 9955 9999 Vim XYZ 9999 3333 998 999 10 3 DEL data Sager memorysetup 3 While the meter in ON press and hold on O gt button and press GE button to enter Setup Mode 20 TENMARS TM 195 Press yn button 2 more times to enter clear data logger memory mode 3 SET 588 will show on the display To exit without clearing memory press Gitta key To clear the memory press amp then press ai 10 4 Analog bar graph setup 4 While the meter in ON press hold O gt button and press gt button to enter Setup Mode Press GS button 3 more times to enter analogue bar graph setting mode The graph unit is flashing Current setting of x1 x10 or x100 is displayed at bottom of graph X1 is normal setting X10 is 10 times more sensitive x100 is 100 times more sensitive Press OP Or TE to select the desired value gonm menn SHH Eed o 21 TENMARS TM 195 Press D key to store the new setting value and exit 10 5 Auto Power Off Time function setup 5 While the meter is on press and hold O button and press gt button to enter the auto
14. power off Setup Mode Press GS button 4 more times Press TE and TE button to change the value Auto power off time default setting is 15 minutes Maximum auto power off time 99 minutes Set value to 00 to disable auto power off Press e key to store the new setting value and exit The symbol is displayed Ge SET 10 6 Setting the calibration factor CAL 6 Press hold O gt button and press GE button to 60 set 8 O enter Setup Mode 22 TENMARS TM 195 Press GS button 5 more times to enter the calibration factor setup mode The CAL setting range is from 0 10 to 9 99 Default is 1 00 which is appropriate for most situations Use a Or Ss to select the desired digit Press TE and TE button to change the digit Press ED key to store the new setting value 3 33 CAL and exit rar ie LOLS KOLA W Calibration factor CAL The calibration factor CAL serves to calibrate the display for a specific frequency when the frequency of a single signal is known The field strength value measured internally is multiplied by the value of CAL that has been entered and the resulting value is displayed 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 23 TENMARS 11 Making measurements Important The following effect will be noted with all field strength meters
15. ry Display 13 E symbol 1 RF three Axle Sensor 2 Hold symbol 14 Auto power off 2 Liquid crystal LCD 3 Analogue bar graph symbol a MAX AVG R Button 4 MAX symbol 15 Time unit month day 4 Record Time L Button 5 AVG symbol hour minute 5 Power Button 6 Low battery symbol second 6 UNIT ENTER switch Button 3 7 xXix10x100 unit 16 MEM reading symbol 7 Hold ALARM on off Up Button a AE api Y DO te a saber 8 Backlight Set on symbo 9 XYZ MEM D Button 10 mV m V m E 19 CAL symbol NE ER 11 pA m mA m unit H 20 Secondary Display Ke Ge TONOJ SA 12 pWim pW cm unit 21 BUZZER symbol 11 Battery cover 22 Decimal point f 8 TENMARS TM 195 8 Specifications 8 1 General specifications e Display type Liquid crystal LCD 4 1 2 digits maximum reading 19999 Measurement method Digital triaxial measurement e Directional characteristic ISotropic triaxial e Measurement range selection one continuous range e Display resolution 0 1mV m 0 14A m 0 001uW m 0 001 W cm e Setting time typically 1 5s 0 to 90 measurement value e Sample rate 3 times per second e Audible alarm Buzzer e Units mV m V m pA m mA m pW mi mW m pW cm e Display value Instantaneous measured value maximum value average value or maximum average value e Alarm function adjustable threshold with ON OFF e Calibration factor CAL adjustable Manual data memory
16. will appear Manual data memory storing 200 data sets Over load indication OL REC on f REC DA REC 15 TENMARS TM 195 9 6 Backlight Display and Reading in The Dark Press GE key backlight light on Again Press gt button to power off Backlight light turns off automatically after 30 seconds 9 7 XYZ Press this key to change sensor axis selector All axis gt X axis m Y axis Z axis vannnannnaannAannn ou menti alae EA BaN Oad PaA w Ja m n ome dws D 9 8 Alarm ON OFF Setup Press and hold YO then press TE key to switch the alarm fun tion on The ALARM symbols in the display indicates that the alarm function is on Press and hold and key to turn off the alarm function When the Alarm 16 TENMARS TM 195 sounds the display shows I Bag asi 988 7 B888 9 9 Viewing Data Records Press hold O button and press Gi button to view the saved data records si 6 Use or button to see the next or previous records Press w key to close the setup exit the mode DW giogo D DBDn DJ 9 10 Clock LCD Display Press hold O gt and O button to select the display method 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 OO 02 00 17 TENMARS TM 195 IDA COT E ARDIE A E DO E AE LOLO
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