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3.4 Measuring Exposure Level (General Public)

• In measuring non-uniform magnetic fields (see figure below) where

the sensor may come into contact with a source, it is recommended
that measurements be conducted at a distance from the three coils

and at an angle (indicated by

in the figure below) to maintain isot-

ropy of each axis.

The IEC/EN62233 standards do not mention sensor angle.

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Reference

Uniform magnetic field

Non-uniform magnetic

field

The locations indicated by

(8 points on the spherical sensor surface) should be

maintained in a vertical attitude relative to the DUT.

Measure at an angle away from the three coils

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www.

.com

[email protected]

1.800.561.8187

Содержание FT3470-51

Страница 1: ...to read this manual before using the instrument Safety Information X p 4 When using the instrument IRU WKH UVW WLPH Troubleshooting Names and Functions of Parts X p 17 Troubleshooting X p 111 Measure...

Страница 2: ...finition of Measurement Items 23 1 6 Screen Configuration and Key Operation Work Flow 24 1 7 Measurement Work Flow 27 2 Measurement Preparations 31 2 1 Supplying Power 31 2 1 1 Connecting the AC Adapt...

Страница 3: ...n for Saving Settings Saving Set Modes and Measurement Ranges 59 4 2 Initializing Function Returning Settings to Their Factory Defaults 60 4 3 Other Functions 61 4 3 1 Setting Auto Power Off Saving Ba...

Страница 4: ...nctional Specifications 105 7 1 5 General Specifications 105 7 1 6 Application Software 106 7 1 7 Equations and Functions 107 7 2 100 cm2 Magnetic Field Sensor 109 7 3 3 cm2 Magnetic Field Sensor 110...

Страница 5: ...dows XP Win dows Vista Windows 7 Dialog box represents a Windows dialog box Menus commands dialogs buttons in a dialog and other names on the screen and the keys are indicated in brackets Introduction...

Страница 6: ...is evident or if it fails to operate according to the specifications contact your dealer Inspection FT3470 50 1 USB cable 1 CD PC application software 1 LR6 alkaline battery 4 Instruction manual 1 FT...

Страница 7: ...100 cm2 Magnetic Field Sensor 1 3 cm2 Magnetic Field Sensor 1 9758 Extension Cable 1 9759 Output Cable 1 Carrying Case 1 9445 02 AC Adapter 1 This instrument has been calibrated to operate with the pr...

Страница 8: ...l before use We disclaim any responsibility for acci dents or injuries not resulting directly from instrument defects In the manual the symbol indicates particularly impor tant information that the us...

Страница 9: ...2005 and producers of the Member States are required to dis play it on the appliance under Article 11 2 of Directive 2002 96 EC WEEE Indicates that the product conforms to regulations set out by the...

Страница 10: ...s from the distribution panel to outlets CAT IV The circuit from the service drop to the service entrance and to the power meter and primary overcurrent protection device distribution panel Using a me...

Страница 11: ...rating temperature humidity range 0 C to 40 C 80 RH or less no condensation Temperature and humidity for guaranteed accuracy 10 C to 50 C 80 RH or less no condensation Avoid the following locations th...

Страница 12: ...ngerprints on the disc or scratch the printing Never touch the recorded side of the disc Do not place the disc directly on anything hard Do not wet the disc with volatile alcohol or water as there is...

Страница 13: ...exposure that may affect human health The FT3470 51 52 Magnetic Field Tester can be used to measure conformance to Guidelines for Limiting Exposure to Time varying Electric Magnetic and Electromagnet...

Страница 14: ...ments Measuring the exposure level of appliances and environments Exposure level general public This level is used for measuring exposure to mag netic fields prevalent in environments where we can ass...

Страница 15: ...he following measurement functions modes magnetic flux density exposure General Public and exposure Occup The user can switch between different axes X axis Y axis and Z axis and resultant RMS values i...

Страница 16: ...p The tester can be powered both by battery and AC power to enable measurements in the field as well as permitting installation for long term measurements Waveform and resultant RMS value output Wavef...

Страница 17: ...and where there are no magnetic fields or metal objects in the vicinity that could be affected by the measurements An anechoic chamber is not required if the above conditions can be met Measurements...

Страница 18: ...Field Sensors 2 Install the driver and the PC software on a PC 3 Connect the tester to the PC using a USB cable 1 Connect batteries in the battery compartment on the rear and fold out the stand Plug...

Страница 19: ...e of 30 cm if the DUT is an electric cooker 4 Read the indicated value and store the measurement data in the tes ter STORE Processing data after measurement 1 Start up the Application software Data Vi...

Страница 20: ...r to Appendix 2 Coupling Factor in the IC NIRP Guidelines P 114 2 This cannot be measured by a magnetic field tester Measurement data accuracy 100 START Calculate the induced current density with the...

Страница 21: ...20 Keys See P 18 Battery compartment lid Open to insert or replace bat teries See 2 1 2 P 32 Back Camera tripod screw Attach a commercially avail able camera tripod here When using the handle as a sta...

Страница 22: ...between Auto and Manual ranges Manual range magnetic flux density mode AUTO o r0 2 PT o r1 20 PT o r2 200 PT o r3 2 mT o AUTO exposure level mode AUTO o r0 20 o r1 200 o AUTO Auto range automatically...

Страница 23: ...ns displayed measurement data when viewing memory data This key becomes invalid during MAX HOLD See 3 7 P 54 8 Switches the displayed axis as shown below XYZoXoYoZoXYZ XYZ indicates a resultant RMS va...

Страница 24: ...ored in memory See 3 7 Checking and Deleting Saved Measurement Data P 54 10 Indicates that a measurement value is an RMS value Flashes during the slow function is on 11 Indicates the unit used for ind...

Страница 25: ...inal See 2 2 P 34 Sensor Z Y X X axis coil X axis Y axis coil Y axis Z axis coil Z axis The dotted line indicates the X axis coil The dotted line indicates the Y axis coil The dotted line indicates th...

Страница 26: ...xis coil The line indicates the Y axis coil X axis coil Y axis coil Z axis coil Output connector Connects to the FT3470 50 sensor terminal See 2 2 P 34 The line indicates the Z axis coil Matching numb...

Страница 27: ...t t y T t y 2 1 t T t dt t z T t z 2 1 t R 2 2 2 t z t y t x t R The IEC EN622336 standards state that Transient magnetic fields with a duration of less than 200 ms e g during switching events are dis...

Страница 28: ...p mode Measurement function mode Press Press Press Press Press Magnetic flux density function 10 Hz to 2 kHz mode Magnetic flux density function 2 kHz to 400 kHz mode See 3 3 P 40 See 3 3 P 40 See 3 3...

Страница 29: ...hod Screen displayed Check Saved Measurement Data Press in each measure ment function See 3 7 1 P 54 Set Auto Power Off When the power is off hold down and and press or to turn on APS See 4 3 1 P 61 S...

Страница 30: ...nction When the power is off hold down and And press or to turn on SLou See 4 3 4 P 67 Enable disable the MEM MODE key when using MAX HOLD or the output function When the power is off hold down and An...

Страница 31: ...measurement work flow 1 7 Measurement Work Flow 1 Supplying power See 2 1 1 Connecting the AC Adapter P 31 See 2 1 2 Inserting and Replacing Batteries P 32 2 Connect a mag netic field sensor See 2 2 C...

Страница 32: ...e measurement check See 3 2 Pre measurement Check P 39 3 Turn on the power See 2 3 Turning the Power On and Off P 35 5 Measuring mag netic fields See 3 3 Measuring Magnetic Flux Density P 40 www com i...

Страница 33: ...2 13 1 6 Transfer the mea surement data to a PC and use the application soft ware to analyze the data See 5 3 Graphic Rep resentation of Measurement Val ues P 85 See 5 4 Transferring Recorded Data to...

Страница 34: ...nection Measurement Preparations 2 2 1 Supplying Power Use only the specified Model 9445 02 AC Adapter AC adapter input voltage range is 100 to 240 VAC with 10 stability at 50 Hz 60 Hz To avoid electr...

Страница 35: ...m battery leakage remove the batteries from the instrument if it is to be stored for a long time To avoid corrosion and damage to this instrument from battery leakage remove the batteries from the ins...

Страница 36: ...ve the battery compartment lid 2 When replacing batteries first remove the old batteries 3 Insert the batteries taking care to match the polarity correctly 4 Attach the battery compartment lid This co...

Страница 37: ...nsor Use the magnetic field sensor within its specified range In a high frequency and strong magnetic field the sensor will output a high voltage that may cause electric shock or sensor damage when so...

Страница 38: ...below Press Hold down for 2 seconds or more 2 3 Turning the Power On and Off Turning on the power Turning the power off 2 seconds or more To avoid battery depletion turn the function selector OFF afte...

Страница 39: ...tions in the stated order 1 Press to turn on the power 2 Make sure that all segments on the LCD display light Then it will display the model number and estimated remain ing battery life Measurement Pr...

Страница 40: ...for checking low battery voltage When a setup has been saved for details refer to 4 1 Function for Saving Settings Saving Set Modes and Measurement Ranges P 59 the set measurement mode screen appears...

Страница 41: ...amaged Do not use the tester if any of the cables are damaged and the cable metal core is visible Sufficient battery power Check if the battery is depleted after powering up A flashing mark indicates...

Страница 42: ...ording to the steps below 1 Press to open the magnetic flux density function screen 3 3 Measuring Magnetic Flux Density 5 2 1 wide range measurements power frequency range measurements extended power...

Страница 43: ...or the X Y and Z axes are interlocked with maximum range and are automatically switched Range of guaranteed accuracy At resultant RMS value R a count of less than 100 is outside guaranteed accuracy Us...

Страница 44: ...further away from the DUT than the magnetic field sensor Although few magnetic materials are used in the magnetic field tester the battery is a magnetic material and may affect measurements if locate...

Страница 45: ...more turn off the slow function This is because moving the sensor causes the detection of AC current generated by a DC magnetic field such as the terrestrial magnetic field and other AC magnetic field...

Страница 46: ...e procedures 2 P 48 described in 3 4 3 Measurement Procedure to perform an exposure level Gen eral Public measurement The result of the flow chart assessment is Turn off the slow function Turn off the...

Страница 47: ...e ment Internal processing Measure ment Internal processing Measure ment Internal processing Measure ment Internal processing 0 12 s 0 13 s 0 12 s 0 13 s 0 12 s 0 13 s 0 12 s 0 13 s 1 s Values obtaine...

Страница 48: ...three coils and at an angle indicated by in the figure below to maintain isot ropy of each axis The IEC EN62233 standards do not mention sensor angle Reference Uniform magnetic field Non uniform magne...

Страница 49: ...8 9 10 11 12 13 3 3 4 3 Measurement Procedure Measure exposure level General Public according to the steps below General Public Exposure is selected 1 Press to open the exposure level General Public m...

Страница 50: ...own below Range of guaranteed accuracy At resultant RMS value R a count of less than 100 is outside guaranteed accuracy As a result when R is 9 9 or less in range r1 it is not within guaran teed accur...

Страница 51: ...n it may be a good idea to use an extension cable to increase the distance between the magnetic field sensor and the tester or to remove the battery and use the AC adapter For details on measuring dis...

Страница 52: ...Exposure Level Occup Measuring Exposure Level Occup 1 Press to open the exposure level Occup mode screen Occup Exposure is selected 3 5 Measuring Exposure Level Occup 5 2 1 www com information itm co...

Страница 53: ...the order shown below Range of guaranteed accuracy At resultant RMS value R a count of less than 100 is outside guaranteed accuracy As a result when R is 9 9 or less in range r1 it is not within guar...

Страница 54: ...further away from the DUT than the magnetic field sensor Although few magnetic materials are used in the magnetic field tester the battery is a magnetic material and may affect measurements if located...

Страница 55: ...icon lights 2 Press again to turn off and clear held maximum data value The screen returns to the state it had before was pressed 3 6 Holding Maximum Value of the Resultant RMS Values 1 2 The update...

Страница 56: ...Saved Measurement Data Use the following steps to check saved measurement data You can save up to 99 data 1 Press to open the screen with the saved measurement data 3 7 Checking and Deleting Saved Me...

Страница 57: ...s S or T to select the memory number of measurement data you wish to check 3 Press to return to the measurement function screen This completes saving measurement data Memory number blinks when measure...

Страница 58: ...lete saved measurement data 1 Press to open the screen with the measurement data 2 Press and hold for 2 seconds or more This deletes the measurement data with the highest memory number Data can delete...

Страница 59: ...6 7 8 9 10 11 12 13 3 dAtA cLr appear when data is deleted The measurement data for the next highest memory number appears 3 Press to return to the measurement function screen This completes deleting...

Страница 60: ...aved measurement data When the power is off hold down and press This deletes all saved measurement data dAtA cLr appear when measurement data is deleted Then the model number estimated remaining batte...

Страница 61: ...s soon as the tester is powered up Follow the steps given below Select the mode or range you wish to access upon powering up and hold down for 2 seconds or more SAvE End appear and the tester returns...

Страница 62: ...After this it displays the model number and estimated remaining bat tery life and is restarted using the factory default settings The factory default settings are listed in the table below 4 2 Initia...

Страница 63: ...The tester is automatically turned off 10 minutes after the last key press lights when the auto power off function is on Before turning off the tester the icon flashes and sounds a buzzer tone for abo...

Страница 64: ...Other Functions 3 Press and select y or n 4 Press to save the setting SAvE End appear and the power is turned off y set auto power off n cancel auto power off y n www com information itm com 1 800 56...

Страница 65: ...3 2 Setting Audible Key Feedback This function causes the keys to generate a beep when pressed Follow the steps given below 1 When the power is off hold down and press 2 Press S or T to turn on bEEP...

Страница 66: ...Functions 3 Press and select y or n 4 Press to save the setting SAvE End appear and the power is turned off y audible key feedback is on n audible key feedback is off y n www com information itm com 1...

Страница 67: ...3 Changing Unit Indication Use this function to change the unit indication The default unit is T Follow the steps given below 1 When the power is off hold down and press 2 Press S or T to turn on Uni...

Страница 68: ...asured axes Unit Maximum display of range r0 r1 r2 r3 X Y Z T 2 000 PT 20 00 PT 200 0 PT 2 000 mT G 20 00 mG 200 0 mG 2 000 G 20 00 G A m 1 592 A m 15 92 A m 159 2 A m 1592 A m R T 3 464 PT 34 64 PT 3...

Страница 69: ...etting the Slow Function This function performs 1 s sampling and then displays the measurement value Follow the steps given below 1 When the power is off hold down and press 2 Press S or T to turn on...

Страница 70: ...select y or n 4 Press to save the setting SAvE End appear and the power is turned off y sets the slow function n cancels the slow function y n blinks while measuring with the slow function on www com...

Страница 71: ...e this function to turn on or off the key when using MAX HOLD or the output function Follow the steps given below 1 When the power is off hold down and press 2 Press S or T to turn on MEM M Displaying...

Страница 72: ...ss and select y or n 4 Press to save the setting SAvE End appear and the power is turned off y enables in MAX HOLD mode and output modes n disables in MAX HOLD mode and output modes y n www com inform...

Страница 73: ...P 91 View application soft ware version Checking version of application soft ware 5 6 P 93 Supported operating system Windows XP Windows Vista 32 bit 64 bit Windows 7 32 bit 64 bit The hardware envir...

Страница 74: ...w 5 2 Installing 1 2 Do not connect and disconnect the USB cable during operations Dis connecting the USB cable will prevent normal completion of the installa tion procedure Only one FT3470 50 tester...

Страница 75: ...n the DVD CD drive 2 Open the folder English included on the CD then execute driverSetup msi This will activate the installer and open the HIOKI USB Single Driver window 3 Click Next 4 Specify the ins...

Страница 76: ...74 5 2 Installing 5 Click Next 6 Click Yes 7 Click Install www com information itm com 1 800 561 8187...

Страница 77: ...D from the DVD CD drive Windows Vista 1 Insert the supplied CD in the DVD CD drive 2 Open the folder English included on the CD then execute driverSetup msi This will activate the installer and open t...

Страница 78: ...76 5 2 Installing 3 Click Next 4 Specify the installing destination folder and click Next 5 Click Next www com information itm com 1 800 561 8187...

Страница 79: ...5 2 Installing 77 2 3 4 5 6 7 8 9 10 11 12 13 5 6 Click Continue 7 Click Install 8 Click Close 9 Remove the CD from the DVD CD drive www com information itm com 1 800 561 8187...

Страница 80: ...ive 2 Open the folder English included on the CD then execute driverSetup msi This will activate the installer and open the HIOKI USB Single Driver window 3 Click Next 4 Specify the installing destina...

Страница 81: ...5 2 Installing 79 2 3 4 5 6 7 8 9 10 11 12 13 5 5 Click Next 6 Click Continue Anyway www com information itm com 1 800 561 8187...

Страница 82: ...Using the supplied USB cable connect the tester to the PC 11 When the FT3470 50 is connected to the PC for the first time connection is automatically detected by the PC The Found New Hardware Wizard...

Страница 83: ...5 2 Installing 81 2 3 4 5 6 7 8 9 10 11 12 13 5 13 Select Install the software automatically and click Next 14 Click Continue Anyway 15 Click Finish www com information itm com 1 800 561 8187...

Страница 84: ...ctive applications on the PC 2 Insert the CD PC application software supplied with the instrument into the CD ROM drive 3 Open the folder English included on the CD then execute Setup exe This will ac...

Страница 85: ...hen specify the installing destination folder Click Next 6 Click Install 7 When installation ends click Finish in the checking window Installation is now complete Click this button when specify the in...

Страница 86: ...ows to activate the application Uninstallation 1 Select Setup Control Panel from the Start menu then click Add Remove Programs 2 Select DATA VIEWER for FT3470 EN then click Remove or Change Remove 3 U...

Страница 87: ...0 DATA VIEWER for FT3470 EN from the Start but ton on the PC 2 Connect the tester to a PC using the supplied USB cable Push the cable plugs all the way in on the FT3470 50 lights and all key operation...

Страница 88: ...R is at its maximum among the sampling data obtained in drawing 1 point Drop down list box for sampling interval Selects sampling interval When the slow function is set to ON 1 s div and 5 s div are...

Страница 89: ...raph and to indicate the data for the corresponding time interval at the bot tom of the screen 6 Click Stop to stop measuring Then click CSV Save to save the graph data 7 Click File Read to read out s...

Страница 90: ...y operations other than the are disabled 5 4 Transferring Recorded Data to a PC USB cable Only one FT3470 50 tester can be connected to a PC at one time The prescribed accuracy range is not considered...

Страница 91: ...rded on the FT3470 50 CSV Save Saves displayed data File Read Displays saved data Unit Change drop down list box Selects unit for magnetic flux density data Unit Change Changes unit for indicated magn...

Страница 92: ...Click File Read to read out saved data Or click Print to print the dis played data 6 Use Memory Clear to delete recorded data on the FT3470 50 that is no longer needed 7 Disconnect the USB cable from...

Страница 93: ...IOKI DATA VIEWER for FT3470 DATA VIEWER for FT3470 EN from the Start but ton on the PC 2 Connect the tester to a PC using the supplied USB cable Push the cable plugs all the way in on the FT3470 50 li...

Страница 94: ...lize the FT3470 to return the FT3470 50 settings to their factory defaults 7 Disconnect the USB cable from the tester and the PC and turn off the tester Screen item Description Configure the FT3470 50...

Страница 95: ...e Start but ton on the PC 2 Connect the tester to a PC using the supplied USB cable Push the cable plugs all the way in on the FT3470 50 lights and all key operations other than the are disabled 3 Cli...

Страница 96: ...94 5 6 Viewing Version Information 4 Disconnect the USB cable from the tester and the PC and turn off the tester www com information itm com 1 800 561 8187...

Страница 97: ...ected to the output terminal a short circuit current could flow via the FT3470 50 and damage the device connected to the USB terminal by fire When both terminals need to be used to connect for example...

Страница 98: ...MS value output permits recording of resultant values on a recorder or log ger which is convenient for long term measurements The output may become unstable during switching of measurement modes or ra...

Страница 99: ...tput terminal 2 Connect the output cable plug in the oscilloscope recorder or etc connector 3 Press and select a measurement function mode 4 Press to confirm measurement range selection 9759 Output Ca...

Страница 100: ...atically cancels auto power off goes off Measurement function Range Output rate Waveform output MON Level value REC Magnetic flux density r0 AC 100 mV PT DC 100 mV PT r1 AC 10 mV PT DC 10 mV PT r2 AC...

Страница 101: ...lows Out put OFF o Waveform lights o Resultant RMS value lights o OFF The waveform output lights only for magnetic flux density function resultant RMS values are output via the X axis This completes o...

Страница 102: ...d axes X Y Z Measurement method True RMS Range switching auto manual 2 Indication Display LCD display Indicated axes X Y Z R resultant RMS value Maximum dis play value 2000 count for single axis and 3...

Страница 103: ...T 3 5 rdg 0 5 f s r1 0 50 to 20 00 PT r2 5 0 to 200 0 PT r3 0 050 to 2 000 mT R r0 10 Hz to 400 kHz 10 Hz to 2 kHz 2 kHz to 400 kHz 0 100 to 3 464 PT 3 5 rdg 0 5 f s r1 1 00 to 34 64 PT r2 10 0 to 346...

Страница 104: ...reference value Approx 120 ms slow function off Approx 1 s slow function on Measured axes Range Effective measuring range Accuracy X Y Z r0 0 50 to 20 00 Smoothed edges 50 Hz to 1 kHz 3 5 rdg 0 5 f s...

Страница 105: ...C 100 mV PT DC 100 mV PT r1 AC 10 mV PT DC 10 mV PT r2 AC 1 mV PT DC 1 mV PT r3 AC 100 mV mT DC 100 mV mT Exposure level r0 DC 10 mV r1 DC 1 mV Output accuracy MON is defined under the condition that...

Страница 106: ...ed val ues for each axis Auto power off 10 5 min after last operation buzzer warning before shutdown wait period can be extended function can be cancelled after activation Buzzer sound Can be turned o...

Страница 107: ...n FT3470 50 Magnetic Field Tester 1 100 cm2 Magnetic Field Sensor 3 axis 1 3 cm2 Magnetic Field Sensor 3 axis 1 Accessories Instruction manual 1 CD PC application software 1 USB cable 1 LR6 alkaline b...

Страница 108: ...ation Continuous Discrete Waveform output Instantaneous value for each axis at time t Resultant value at time t LCD display effective value logger RMS value for each axis at time t Integral time T int...

Страница 109: ...g a discrete algorithm Example of characteristics when tester is used with a sensor magnetic flux density mode 50 40 30 20 10 0 10 10 100 1k 10k 100k 1M Frequency Hz Gain dB Magnetic flux density mode...

Страница 110: ...ent on fre quency Frequency char acteristics 10 Hz to 400 kHz Measured axes X Y Z Place of use Indoors up to an altitude of 2000 m Storage tempera ture and humidity 10 C to 50 C 80 RH or less no conde...

Страница 111: ...y Frequency characteristics 10 Hz to 400 kHz Measured axes X Y Z Place of use Indoors up to an altitude of 2000 m Storage tempera ture and humidity 10 C to 50 C 80 RH or less no condensation Operating...

Страница 112: ...occurs during shipment Maintenance and Service 8 8 1 Troubleshooting Before returning for repair Symptom Check Remedy Tester does not go on Check whether batteries have been inserted Check if battery...

Страница 113: ...ion period be determined in accordance with the status of the instrument or installation environment Please contact your Hioki distributor to have your instrument periodically calibrated Since the tes...

Страница 114: ...levels when the coupling of the human body magnetic field and electric field are at maximum coupling factor 1 Specific energy absorption rate As can be inferred from the above there is a margin a saf...

Страница 115: ...hough the tester tells us the ratio of a measurement to the ICNIRP reference level it cannot measure the coupling factor and therefore does not indicate the direct effect on the human body Appendix 2...

Страница 116: ...9 3 J P D G 3 B 8 O I Q 5 9 2 P 4 L B M B Z b 5 5 s h i GY 1 p H 4 M 6 j F 7 7 J N7 a 1 i K E S 5 K r M Z n x 2 8 4 s W o nu W 6 F B X 6 R 6 A f z R C 4 j 8 2 0 1 I 2 C 4 u F 0 S 9 2 E 7 0K H 9 2 1 1...

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