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Hioki FT6380-50 Скачать руководство пользователя страница 32

2.4 Measurement Procedure

29

As illustrated below, the instrument is designed to measure

grounding resistance at multiple grounding locations. (*For appli-
cations involving the measurement of grounding resistance at a

single grounding site, use Hioki FT6031-50 Earth Tester or Hioki

FT3151 Analog Earth Tester)

.

If the grounding resistance of the measurement target is repre-
sented by

R

x

and the grounding resistance values of other

grounded locations are represented by

R

1

,

R

2

, …,

R

n

, the resis-

tance value measured by the product is as follows:

If

n

is sufficiently large and each

Ri

value is sufficiently small,

and the second term can be ignored, allowing the value of

R

x

to be measured.

Resistance Measurement

Measuring Principle

Rm

Rx

1

1

Ri

-----

i

1

=

n



------------

+

=

Rx

1

1

Ri

-----

i

1

=

n



------------------

«

R

x

R

1

R

n

R

2

HIOKI FT6380B981-01

www.calcert.com

[email protected]

1.800.544.2843

0

5

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Содержание FT6380-50

Страница 1: ...ion Manual Feb 2021 Revised edition 1 FT6380B981 01 21 02H FT6380 50 CLAMP ON EARTH TESTER Instruction Manual Feb 2021 Revised edition 1 FT6380B981 01 21 02H HIOKI FT6380B981 01 www calcert com sales...

Страница 2: ...alling or Replacing the Battery and Wireless Adapter 23 2 3 Pre Operation Inspection 26 Using the included resistance check loop to inspect the instrument 27 2 4 Measurement Procedure 28 Resistance Me...

Страница 3: ...r saving APS function 53 Reverting the instrument to factory settings system reset 54 Chapter 3 Specifications 55 3 1 General Specifications 55 3 2 Input Output and Measurement Specifications 56 3 3 F...

Страница 4: ...T6380 50 Clamp on Earth Tester To obtain maximum performance from the instrument please read this manual first and keep it handy for future refer ence Introduction HIOKI FT6380B981 01 www calcert com...

Страница 5: ...at no damage occurred during shipping In particular check the accessories panel switches and connectors If damage is evident or if it fails to operate according to the specifications contact your auth...

Страница 6: ...er an option please contact your authorized Hioki distributor or reseller Options are subject to change Check Hioki s website for the latest information Option sold separately Z3210 Wireless Adapter H...

Страница 7: ...se Symbols on equipment Indicates the need for caution or the presence of a hazard For more information about locations where this symbol appears on instrument compo nents see Operating Precautions p...

Страница 8: ...sult in minor or moder ate injury to the operator Indicates the possibility of equipment damage Symbols for Various Standards Indicates the Waste Electrical and Electronic Equipment Directive WEEE Dir...

Страница 9: ...display Resistance measurement When the read ing exceeds 1 600 Current measurement When the reading exceeds 60 0 A This screen is displayed when the clamp sensor is not completely closed during use of...

Страница 10: ...I to CAT IV measurement applications could result in a severe accident and must be carefully avoided Measurement categories CAT II Primary electrical circuits in equipment connected to an AC electrica...

Страница 11: ...for use under the envi ronmental conditions in which you are using the instrument Operating humidity 80 RH or less non condensating Operating Precautions Preliminary Checks Instrument Installation Avo...

Страница 12: ...in bodily injury To avoid electric shock do not remove the instrument s case The internal components of the instrument carry high voltages and may become very hot during operation When the clamp sens...

Страница 13: ...especially careful to avoid physical shock from dropping Be careful to avoid dropping the instrument or otherwise sub jecting them to mechanical shock which could damage the mating surfaces of the co...

Страница 14: ...1 0 mm in diameter The equipment inside the enclo sure is protected against entry by solid foreign objects larger than 1 0 mm in diameter 0 The equipment inside the enclosure is not protected against...

Страница 15: ...Operating Precautions 12 HIOKI FT6380B981 01 www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30...

Страница 16: ...needed and there is no need to disconnect the ground wire from the grounding rod The instrument also provides AC current measurement function ality and can measure currents ranging from leakage curre...

Страница 17: ...matically detects noise that may affect ground ing resistance measurement and displays a mark True RMS display True RMS calculation allows the instrument to accurately measure distortion waveform curr...

Страница 18: ...cases where harmonic components are superimposed on leakage current waveforms The instrument s filter function allows it to per form two types of measurement leakage current as related to deg radatio...

Страница 19: ...y cancel the auto power save function press the power key while holding down the HOLD key HOLD key Holds the measured value display or cancels hold mode To cancel auto power save mode press the power...

Страница 20: ...serial number consists of nine digits The first two digits indicate the year of manufacture while the second two digits indicate the month of manufacture Do not remove this sticker as the number is i...

Страница 21: ...y serves as the key which is used to select setting items and values Pressing this key while using the current measurement func tion enables the low pass filter to reject unneeded harmonic components...

Страница 22: ...hts up in resistance measurement mode p 29 Lights up in resistance measurement mode when a current that could affect the measured value is detected p 31 Lights up in resistance measurement mode when t...

Страница 23: ...erations p 42 The number of measurement data points stored in memory is shown to the right Lights up when the range display function is on The measurement range is shown to the right HIOKI FT6380B981...

Страница 24: ...rement p 33 End of measurement Remove the instrument from the measurement target Turn off the instrument Measurement Preparations Pre Operation Inspection p 26 Using the included resistance check loop...

Страница 25: ...hread the strap through the strap hole as shown in the follow ing diagram 2 2 Preparing for Measurement Attaching the Strap Attach both ends of the Strap securely to the instrument If insecurely attac...

Страница 26: ...power remains No battery power remains Replace with new batteries To avoid electric shock disconnect the clamp from the measuring object before removing the battery cover After replacing the batteries...

Страница 27: ...part such as a doorknob to elimi nate static electricity from your body connect disconnect the Z3210 Failure to do so could cause static electricity to dam age the Z3210 The indicator lights when batt...

Страница 28: ...m the measuring object and turn off the power 2 Loosen the screws and remove the battery cover 3 Remove the old batteries when replacing the batteries 4 Install new batteries taking care to orient the...

Страница 29: ...instrument may be mal functioning Have the instru ment repaired Is the instrument damaged Is the clamp sensor cracked or otherwise damaged No End of inspection Yes An error is displayed The screen is...

Страница 30: ...r each loop Using the included resistance check loop to inspect the instrument Inspecting the instrument with the resistance check loop Test resistance Allowable range 1 0 95 to 1 05 25 24 3 to 25 7 I...

Страница 31: ...fac tured in order to provide a high level of precision Exer cise caution when handling the clamp so as to avoid subjecting it to excessive vibration mechanical shock or force If foreign matter gets s...

Страница 32: ...stance of the measurement target is repre sented by Rx and the grounding resistance values of other grounded locations are represented by R1 R2 Rn the resis tance value measured by the product is as f...

Страница 33: ...values can be approached even if there are few grounding electrodes Since most multiple grounded systems have a large number of grounding elec trodes the error can be limited Example with actual measu...

Страница 34: ...ch the mark lit up depends on individual differences as well as the fre quency The closer to the injected signal frequency the smaller the noise current that will affect opera tion Open display The sc...

Страница 35: ...there are no shorts in the location being measured Capacitance mark If the mark next to the resistance mark light up during measurement there may be a break in the ground wire It is recommended to ver...

Страница 36: ...pond ing to the magnetic field The detection resistor converts this cur rent into the voltage to calculate the value of the current flowing through the conductor Current Measurement Measuring Principl...

Страница 37: ...cial waveforms such as at the secondary side of an inverter may not be indicated cor rectly Depending on the magnitude and frequency of the input current resonances may be heard from the clamp jaw Thi...

Страница 38: ...p all of the circuits at once Measuring zero phase current Single phase 2 lead circuits three phase 3 lead circuits Clamp all three leads of the circuit Load device Load device lg HIOKI FT6380B981 01...

Страница 39: ...eturn to zero However starting measurement before the display returns to zero will not affect measurement Enable the Filter function Rejecting noise p 38 when conducting measurement in the cases below...

Страница 40: ...This function makes the display easier to see in dark locations Press the backlight key The backlight will turn on The backlight will turn off automatically when there has been no operation for about...

Страница 41: ...he measured values to stabilize Note that noise rejection cannot be used when the mark is lit up During current measurement Using the filter function enables a low pass filter causing the harmonic com...

Страница 42: ...key again Alarm function Judging measured values and sounding an alarm 1 Configuring the alarm settings Press the Fn key to switch to function mode Using the and keys select the resistance or current...

Страница 43: ...value Hi The alarm will sound if the measured value is greater than the set threshold value The Hi Lo setting is saved once the following setting has been configured If you press the Fn key after con...

Страница 44: ...You can move more quickly through threshold values by pressing and holding the and keys Once the settings are complete the screen will switch to the alarm settings screen To return to resistance mea s...

Страница 45: ...in the instrument s internal memory Measured values filter use and the and marks are saved in memory Memory function Saving measurement data Memory number When the number of values saved in the instr...

Страница 46: ...and keys increment or decrement the memory number to recall the measured value for the memory number you wish to load You can move more quickly through memory numbers by pressing and holding the and...

Страница 47: ...the and keys select either the last stored data point or all data points and press the OK key The OK mark will flash on the LCD once you select the data to clear so that you can confirm your intentio...

Страница 48: ...on 45 To cancel press the Fn key To return to resistance measurement or current mea surement mode press the Fn key again or the A key HIOKI FT6380B981 01 www calcert com sales calcert com 1 800 544 28...

Страница 49: ...tance between the instrument and the floor or ground To ensure stable communication verify ade quate signal strength Although the GENNECT Cross is provided free of charge downloading or using the app...

Страница 50: ...GENNECT Cross and cycle the instrument s power 1 Connect the Z3210 Wireless Adapter option to the instrument p 23 2 Install the GENNECT Cross on your mobile device 3 Turn on the instrument 4 Press the...

Страница 51: ...GENNECT Cross and pair it with the instru ment 8 Select the measurement function and start measure ment Lights up Wireless communication function is on Lights off Wireless communication function is o...

Страница 52: ...function 49 For detail information please visit the Z3210 s website https z3210 gennect net Useful functionality of the Z3210 HIOKI FT6380B981 01 www calcert com sales calcert com 1 800 544 2843 0 5...

Страница 53: ...tings p 39 Loading values from memory p 43 Clearing data from the instrument s memory p 44 Resistance alarm settings p 39 2 3 1 While in function mode the mark will light up 1 Press the Fn key to ente...

Страница 54: ...g p 53 System reset to revert to factory settings p 54 To enter sub function mode turn on the instrument by pressing the power key while holding down the Fn key To exit sub function mode press the pow...

Страница 55: ...nd keys select the range display setting screen and press the OK key 3 Using the and keys switch the range display function on or off and press the OK key The measurement range is displayed using valu...

Страница 56: ...ument turns off to about 5 minutes You can restart the instrument by pressing the power key Enabling disabling the auto power saving APS function 1 Press the power key while holding down the Fn key Th...

Страница 57: ...actory settings system reset 1 Press the power key while holding down the Fn key The instrument will enter sub function mode 2 Using the and keys select the System Reset screen and press the OK key Th...

Страница 58: ...EMC EN 61326 Power supply LR6 Alkaline battery 2 Rated supply voltage 1 5 V DC 2 Maximum rated power 450 mVA Continuous operating time When using two LR6 Alkaline batteries reference value at 23 C App...

Страница 59: ...ter adjustment made by Hioki 1 year Accuracy guarantee temperature and humidity range 23 C 5 C 80 RH or less Temperature coefficient Measurement accuracy 0 1 C is added to the measurement accuracy Spe...

Страница 60: ...Injected signal frequency 2375 Hz 25 Hz Injected voltage level 9 0 mV 1 0 mV rms with load open Measurement response time Filter OFF 3 s 0 5 s or less Filter ON 9 s 0 5 s or less Range Accuracy Range...

Страница 61: ...0 C Series disturbance voltage E4 Fiducial resistance 100 16 2 3 Hz 50 Hz 60 Hz 0 V to 3 V Accuracy 1 0 DC 0 V to 3 V Accuracy 1 0 400 Hz 0 V to 3 V Accuracy 1 0 Allowable ground potential 3 V rms Dir...

Страница 62: ...erence 10 mA or less in an external magnetic field of 400 A m at 50 Hz 60 Hz AC Maximum allowable current 100 A AC continuous 200 A AC for 2 minutes 50 Hz 60 Hz For frequency derating characteristics...

Страница 63: ...45 Hz f 66 Hz 2 0 rdg 0 5 mA 2 0 rdg 0 5 mA 30 Hz f 45 Hz 66 Hz f 400 Hz 2 5 rdg 0 5 mA 2 000 A 0 180 A to 2 000 A 0 001 A 45 Hz f 66 Hz 2 0 rdg 0 005 A 2 0 rdg 0 005 A 30 Hz f 45 Hz 66 Hz f 400 Hz 2...

Страница 64: ...5 mA 15 Hz to 400 Hz in an external magnetic field of 30 A m Effects of load current E12 0 45 mA 60 A AC 50 Hz 60 Hz Effects of common mode voltage E13 0 10 mA Effects of frequency E14 Accuracy 0 3 Sp...

Страница 65: ...surement mode alarm Beeps when measured value is less than or greater than threshold Alarm Hi Lo Separate Hi Lo settings for resistance measurement and current measurement Resistance measurement Hi AL...

Страница 66: ...he tips of the clamp sensor or while the shape of the clamp sensor is deformed If the tips of the clamp sensor become deformed have the instrument inspected and calibrated by your dealer Wipe the LCD...

Страница 67: ...ssible 4 2 Troubleshooting Inspection and Repair If damage is suspected check the Before returning for repair section before contacting your authorized Hioki distributor or reseller Before returning f...

Страница 68: ...rr 004 EEPROM R W error Err 008 Z3210 communication error Connection failure a Z3210 or hardware malfunction Take the following actions Reinstall the Z3210 Install a different Z3210 p 23 If the error...

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