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Summary of Contents for HTC EMF-523
- Page 1 EMF-523 RF three-Axis Field Strength Meter User’s Manual...
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Page 2: Table Of Contents
Table of 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:....4 Application.................5 Features ................6 Identifying Parts..............7 LCD description..............8 Specifications ..............9 General specifications ..........9... - Page 3 Viewing Data Records ..........17 9.10 Clock LCD Display ........... 18 10 Setup Mode ..............18 10.1 Clock Setup-1............19 10.2 Setting the alarm limit value (ALARM)-2....20 10.3 DEL data logger memorysetup-3 ......21 10.4 Analog bar graph setup-4 ......... 21 10.5 Auto Power Off Time function setup-5 ......
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Page 4: Axis Rf Meter Quick Start Guide
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 5: Introduction
EMF-523 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 6: Fundamentals
EMF-523 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 7: Power Density (S)
EMF-523 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 8: Application
EMF-523 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 9: Features
EMF-523 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 10: Identifying Parts
EMF-523 Identifying Parts RF three-Axle Sensor. Liquid-crystal LCD. MAX / AVG / R Button. Record / Time / L Button. Power Button. UNIT / ENTER switch Button. Hold / Up Button. Backlight/Set. XYZ / MEM / Down Button. Tripod mounting screw. -
Page 11: Lcd Description
EMF-523 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) (second) 6. Low battery symbol 16. MEM reading symbol 7. -
Page 12: Specifications
EMF-523 Specifications 8.1 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, 0.001µW/m , 0.001µW/cm Setting time : typically 1.5s (0 to 90%... -
Page 13: Electrical Specifications
EMF-523 Battery life : Approximate 15 hours. Auto power of f : 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. -
Page 14: Units Of Measurement
EMF-523 Specified measurement range: • CW signal (f >50MHz) : • 0.01V/m~ 20.0 V/m. • 0.1mA/m ~ 532.6mA/m, 0.01W/m ~106.94mW/m 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 : ±... -
Page 15: Result Modes
EMF-523 density units (µW/m , mW/m or µW/cm ) using the standard far-field formulae 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. -
Page 16: Measurement Procedures And Preparation
EMF-523 average value measured, the “AVG” symbol is displayed. The following graph shows of Instantaneous (actual), MAX (hold), AVG and MAX/AVG: Measurement Procedures and Preparation Battery loading : Remove the battery cover on the back and put a 9V battery inside. -
Page 17: Data Hold Button
EMF-523 9.2 Data hold button: Press the “ ” button to go into hold mode, and “HOLD” appears on the screen to allow you to read the data. Press the “ ” button once again to deactivate it. 9.3 Units button : Change units with the “UNITS”... -
Page 18: Max / Avg Record
EMF-523 9.4 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. -
Page 19: Manual Data Memory Storing
EMF-523 9.5 Manual data memory storing Push“ ”button, 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”. 9.6 Backlight Display and Reading in The Dark. -
Page 20: Alarm On/Off Setup
EMF-523 9.8 Alarm ON/OFF Setup Press and hold ” ” then press ” ” key to switch the alarm function on. The “ALARM” symbols in the display indicates that the alarm function is on. Press and hold ” ” and “... -
Page 21: Clock Lcd Display
EMF-523 9.10 Clock LCD Display Press hold “ ” and “ ” 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 00: 02”... -
Page 22: Clock Setup-1
EMF-523 setup 4 : Auto Power Off Time. setup 5 : Setting the calibration factor (CAL) 10.1 Clock Setup-1 Press hold “ ” button and press “ ” button first to enable Clock Setup. This meter clock is 24 hour time setting. -
Page 23: Setting The Alarm Limit Value (Alarm)-2
EMF-523 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. -
Page 24: Del Data Logger Memorysetup-3
EMF-523 10.3 DEL data logger memorysetup-3 While the meter in ON, press and hold on “ ” button and press “ ” button to enter Setup Mode. Press “ ” button 2 more times to enter clear data logger memory mode (3.SET). -
Page 25: Auto Power Off Time Function Setup-5
EMF-523 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 “ ” or “ ” to select the desired value: Press “... -
Page 26: Setting The Calibration Factor (Cal)-6
EMF-523 and exit. The symbol is displayed. 10.6 Setting the calibration factor (CAL)-6 Press hold “ ” button and press “ ” button to enter Setup Mode Press “ ” button 5 more times to enter the calibration factor setup mode, The CAL setting range is from 0.10 to 9.99. -
Page 27: Making Measurements
EMF-523 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... -
Page 28: Long-Term Exposure Measurements
EMF-523 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. -
Page 29: Safety Information
EMF-523 14 SAFETY INFORMATION 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. -
Page 30: Safety Information
EMF-523 15 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 31: Battery Replacement
EMF-523 16 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.
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