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Summary of Contents for Tenmars TM-195
- Page 1 RF three-Axis Field Strength Meter TM-195 Strength Meter User’s Manual HB2TM1950009...
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Page 2: Table Of Contents
Contents Axis RF Meter Quick Start Guide ..........1 Introduction ................. 2 Simple a method of operation ..........2 Fundamentals ..............3 Electric field strength (E): ..........3 Magnetic field strength (H): ......... 3 Power density (S): ............4 The characteristic of electromagnetic fields(S): ..4 Application ................ - Page 3 15 Safety Information ............. 27 16 Safety Information ............. 28 17 Battery replacement ............29 18 Safety Precaution .............. 29 19 Product Disposal ............... 29...
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Page 5: Axis Rf Meter Quick Start Guide
TM-195 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: Insert 9V battery. -
Page 6: Introduction
TM-195 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. Simple a method of operation Press “ ” button to power on. To change measuring unit (mV/m), push “... -
Page 7: Fundamentals
TM-195 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... -
Page 8: Power Density (S)
TM-195 3.3 Power density (S): Power per unit area 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 3.4 The characteristic of electromagnetic... -
Page 9: Application
TM-195 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... -
Page 10: Electromagnetic Safety Reference Standard
TM-195 electromagnetic safety reference standard 1W/m² =0.1mW/Cm² =100uW/Cm² 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. - Page 11 TM-195 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. ...
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Page 12: Identifying Parts
TM-195 Identifying Parts RF three-Axle Sensor. Liquid-crystal LCD. MAX / AVG / R Button. Record / Time / L Button. Power Button. UNIT / ENTER switch Button. Hold / ALARM on/off / Up Button. Backlight/Set. X.Y.Z / MEM / Down Button. -
Page 13: Lcd Description
TM-195 LCD description 1. Primary Display 13. E symbol 2. Hold symbol 14. Auto power off 3. Analogue bar graph symbol 4. MAX symbol 15. Time unit (month:day) 5. AVG symbol (hour: minute) 6. Low battery symbol (second) 7. x1x10x100 unit 16. -
Page 14: Specifications
TM-195 Specifications 9.1 General specifications Display type : Liquid-crystal (LCD), 4-1/2 digits maximum reading 19999. Measurement method : Digital, triaxial measurement. Directional characteristic : Isotropic (triaxial). Measurement range selection: one continuous range. Display resolution : 0.1mV/m, 0.1µA/m, 0.01µW/m... -
Page 15: Electrical Specifications
TM-195 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. ... -
Page 16: Units Of Measurement
TM-195 Specified measurement range: CW signal (f >50MHz) : 38mV/m to 11.00 V/m, 53.0uA/m to 29.28mA/m , 0.1uW/m to 323.3W/m², 0.001uW/cm ~32.33 uW/cm Dynamic range : Typically 75dB. Absolute error at 1V/m and 2.45GHz : ±1.0 dB. -
Page 17: Result Modes
TM-195 field strength units (µA/m or mA/m) and power density units (µW/m , mW/m or µW/cm ) using the standard far-field formulae for electromagnetic radiation. 9.4 Result modes The bar graph display always shows the instantaneous measured dynamic range value. -
Page 18: Measurement Procedures And Preparation
TM-195 10 Measurement Procedures and Preparation Battery loading : Remove the battery cover on the back and put a 9V battery inside. Battery replacement: When the low battery symbol of ” ” appears on the LCD display, the battery should be replaced with a new one. -
Page 19: Units Button
TM-195 Press the “ ” button once again to deactivate it. 10.3 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 (μW/cm Press “... -
Page 20: Manual Data Memory Storing
TM-195 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 10.5 Manual data memory storing ”button, the meter will save the current... -
Page 21: Backlight Display And Reading In The Dark
TM-195 10.6 Backlight Display and Reading in The Dark. Press “ ” key backlight light on. Again Press “ ” button to power off. Backlight light turns off automatically after 30 seconds. 10.7 XYZ: Press ” ” this key to change sensor axis selector : ”All axis”... -
Page 22: Viewing Data Records
TM-195 sounds, the display shows 10.9 Viewing Data Records Press hold “ ” button and press “ ” button to view the saved data records Use “ ” or “ ” button to see the next or previous records Press “... -
Page 23: Setup Mode
TM-195 11 Setup Mode While the meter is on, press hold “ ” button and “ ” button to enter the setup mode. Press “ ” button to scroll through the setup function. Push “ ” button to save setup data. -
Page 24: Setting The Alarm Limit Value (Alarm)-2
TM-195 Use “ ” or “ ” to select the digit you want to adjust. Press “ ” button to save the setting. Date/Time default format : 2009/12/21 12:12. Year format : 2000~2099 display as 00 ~ 99. 11.2 Setting the alarm limit value... -
Page 25: Del Data Logger Memorysetup-3
TM-195 Mode. Press “ ” button 1 more time to enter the alarm setting mode, the readout value is flashing and ”V/m” unit is displayed. Press “ ” key to move decimal. Press “ ” key to select the desired digit. -
Page 26: Analog Bar Graph Setup-4
TM-195 data logger memory mode (3.SET). will show on the display. To exit without clearing memory, press “ ” key To clear the memory, press “ ” then press “ ” 11.4 Analog bar graph setup-4 While the meter in ON, press hold “... -
Page 27: Auto Power Off Time Function Setup-5
TM-195 11.5 Auto Power Off Time function setup-5 While the meter is on, press and hold “ ” button and press “ ”，button to enter the auto power off Setup Mode. Press “ ” button 4 more times. Press “... - Page 28 TM-195 appropriate for most situations. Use “ ” or “ ” to select the desired digit. Press “ “ and “ ” button to change the digit Press “ ” key to store the new setting value and exit. Calibration factor (CAL)
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Page 29: Making Measurements
TM-195 12 Making measurements Important : The following effect will be noted with all field strength meters: 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. -
Page 30: Long-Term Exposure Measurements
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. -
Page 31: Safety Information
TM-195 15 Safety Information CAUTION Before making a measurement, check if the ” is shown on the low battery symbol” 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. -
Page 32: Safety Information
TM-195 16 Safety Information 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. -
Page 33: Battery Replacement
TM-195 17 Battery replacement WARNING If the symbol “ ” appears on the LCD, please replace the battery immediately Turn off the instrument. Remove the battery cover Replace the battery. Install the battery cover. Be sure to turn unit off after use to conserve battery life. - Page 36 TENMARS ELECTRONICS CO., LTD 6F, 586, RUI GUANG ROAD, NEIHU, TAIPEI 114, TAIWAN. E-mail: service@tenmars.com http: //www.tenmars.com...
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