Hioki FT6380, FT6381 Earth Ground Clamp Meters
Contents
1. Backlight function Making measurements in a dark location 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 2 minutes To turn off the backlight press the BACKLIGHT key again The backlight will turn off 36 2 5 Convenient function Filter function Rejecting noise This function allows you to reject unneeded frequency compo nents such as high frequency noise Press the FILTER key The FILTER mark will be displayed To cancel the filter press the FILTER key again The FILTER mark will disappear FILTER P During resistance measurement Using the filter function when there is a significant amount of variation in measured values during resistance measure ment will cause the measured values to stabilize Note that noise rejection cannot be used when the NOISE mark is lit up P During current measurement Using the filter function enables a low pass filter causing the harmonic component to be eliminated from measured values Widespread use of switching power supplies and inverters has led to cases where harmonic components are superimposed on current waveforms the filter function is effective in such cases Canceling the filter function dis ables the low pass filter allowing measur2. 30 lt f lt 45 Hz 66 lt f lt 400 Hz 2 5 rdg 0 005 A 45 lt f lt 66 Hz 2 0 rdg 0 05 A 2 0 rdg 0 05 A 30 lt f lt 45 Hz 66 lt f lt 400 Hz 2 5 rdg 0 05 A 45 lt f lt 66 Hz 2 0 rdg 0 5 A 2 0 rdg 0 5 A 30 lt f lt 45 Hz 66 lt f lt 400 Hz 2 5 rdg 0 5 A 3 2 General Specifications 6 3 2 General Specifications Location for use Storage temperature and humidity Operating temperature and humidity Dielectric strength Applicable standards Dust and water protection Power supply Maximum rated power Continuous operating time Dimensions Maximum measurable con ductor diameter Mass Accessories Pollution Degree 2 altitude up to 2000 m 6562 ft 20 to 60 C 4 0 F to 140 F 80 RH or less non condensation except for the battery Temperature 10 to 50 C 14 F to 122 F Humidity 80 RH or less non condensation Between the Case and the Clamp core 7400 Vrms 1 minute Safety EN61010 EMC EN61326 Page 64 Effects of radiated radiofrequency electromagnetic field At 3 V m 5X accuracy specifications or less resistance measurement Wireless Japan type certification 001 X00013 US FCC Part 15 247 FCC ID QOQWT12 Canada IC RSS 210 IC 5123A BGTWT12A EU EN 300 328 EN 301 489 1 EN 301 489 17 IP40 EN60529 With clamp sensor closed LRO6 alkaline ba
3. MM BOCUICGHION SE een 1 Verifying Package Contents nennen nenn 2 Safety Information en nnnnnn nennen 3 Operating Precautions u 7 Chapter 1 Overview 11 1 1 Product Overview assseenssneenennnnnennnnnennenennn nenn 11 12 FOIS een 14 1 3 Names and Functions of Parts 16 M Operation key 2uzuu222usnennnnnnnennnnnnn nennen nennen 18 M Display Indicators nee nennen 19 Chapter 2 Measurement 21 2 1 Measurement process cccccecceeseeeeeeeeesaeeees 21 2 2 Preparing for Measurement 22 mM Attaching the Strap 22 E Installing or Replacing the Battery 23 2 3 Pre Operation Inspection cccecceseeeeeeeeees 25 m Using the included resistance check loop to inspect the instrument eee cc ceeeeeeeeeeee ee es 26 2 4 Measurement Procedure 27 E Resistance Measurement 28 E Current Measurement ccccececeeeeeeeeeeeeeeees 31 2 5 Convenient function uus2sssesneneenennennennenenn 35 m Data hold function Holding the measured value 35 m Backlight function Making measurements in a dark location 35 E Filter function Rejecting noise 36 m Alarm function Judging measured values and sounding an alarm ccccecsseeeeeeeeeeeeeeeeeeeeaeeees 37 m Memory function S
4. 6 Advanced Settings and Functions To disable APS temporarily Turn on the instrument by pressing the POWER key while holding down the HOLD key to disable APS until the next time the instrument s power is cycled The next time the power is cycled APS will be enabled as long as the APS setting is enabled in sub function mode Reverting the instrument to factory settings system reset This section describes how to initialize the instrument s settings All measurement data up to 2 000 values will be deleted Enter sub function mode Press the POWER key while holding down the Fn key 2 Using the W and A keys select the System Reset screen and press the OK key The OK mark will flash 3 Press the OK key again The instrument will revert to the fac tory settings ES Jean CL rie Pe NOTE If the System Reset screen is displayed by mistake cycle the instrument s power without pressing the OK key Instrument operation will be restored without a system reset having been performed For more information about how to clear previously saved measurement data see Clearing stored data p 42 3 1 Measurement Specifications 57 Chapter 3 3 1 Measurement Specifications Common measurement specifications Guaranteed 1 year Opening and Closing of the Sensor Maximum 10000 accuracy period times Accuracy guaran 23 C 5 C 73 F 9 F 80 RH or less non condensation tee for tem
5. Inspection p 25 OUsing the included resistance check loop to inspect the instrument p 26 Measurement OResistance Measurement p 28 OCurrent Measurement p 31 End of measurement O Remove the instrument from the measurement target OTurn off the instrument 22 22 Preparing for Measurement 2 2 Preparing for Measurement After purchasing the instrument Complete the following steps before using the instrument to make measurements A CAUTION Attach both ends of the Strap securely to the instrument If insecurely attached the instrument may fall and be damaged when carrying Thread the strap through the strap hole as shown in the follow ing diagram 2 2 Preparing for Measurement 23 Installing or Replacing the Battery Before using the instrument for the first time install two AA size alkaline batteries LR6 Verify that there is sufficient battery power remaining before measurement If there is insufficient bat tery power remaining replace the batteries ZA WARNING e To avoid electric shock when replacing the batteries first disconnect the clamp from the object to be measured e After replacing the batteries replace the cover and screws before using the instrument e Battery may explode if mistreated Do no t short circuit recharge disassemble o r dispose of in fire e Handle and dispose of batteries in accordance with local regulations A CAUTION e Do not mix old and new batt
6. Measurement may not be accurate in the cases below 1 When there is large current of about 100 A flow ing through a nearby electric line 2 Note that a value of several tens of amperes may be displayed when opening or closing the clamp sensor or when changing the electric current range This is not an error It may take some time for the display to return to zero However starting measurement before the display returns to zero will not affect measurement e Enable the Filter function Rejecting noise p 36 when conducting measurement in the cases below 1 When meaningless data is displayed due to noise 2 When using the instrument to measure special waveforms such as those on the secondary side of an inverter The instrument may not be able to perform measure ment in the cases below 1 When using input current that is 1 10 or less of the full electric current range 2 When measuring high frequencies with the filter function enabled 2 5 Convenient function 35 2 5 Convenient function Data hold function Holding the measured value This function holds the measured value and continues to display that value Press the HOLD key The instrument will beep twice and the Fe mark will be displayed and the measured value will be held The HOLD key will flash To cancel hold mode press the HOLD key again The instrument will beep once and the Ere mark will disappear and the HOLD key will stop flashing
7. My mark lights up when the phase angle 8 gt approx 45 dur display ing resistance measurement Capacitance 1 mark lights up when the phase angle 8 lt approx 45 dur mark display ing resistance measurement Bluetooth Bluetooth function off mark turns off Model FT6381 display Bluetooth function on communications inactive mark lights up Model FT6381 Bluetooth function on communications active mark flashes Model FT6381 3 2 General Specifications 63 Function specifications underline default value Data hold function Backlight functionAutomatically turns off approx 2 min after last key operation Filter function Resistance Moving average time Max 9 sec measurement filter function Current Cutoff frequency 180 Hz 30 Hz 3 dB measurement filter function Alarm function Resistance alarm Resistance measurement mode alarm Beeps when measured function value is less than or greater than threshold Current alarm Current measurement mode alarm Beeps when measured value function is less than or greater than threshold Alarm Hi Lo Separate Hi Lo settings for resistance measurement and current measurement Resistance measurement Hi AL Lo AL Current measurement Hi AL Lo AL Alarm threshold Resistance measurement 0 02 Q to 1 600 Q setting range Resistance measurement initial value 25 0 Q Current measurement 0 05 mA to 200 0 mA 0 201 A to 60 0 A Current measurement initial
8. or gasoline as they can deform and discolor the case 66 42 Troubleshooting 4 2 Troubleshooting Inspection and Repair NOTE If damage is suspected check the Before returning for repair section before contacting your dealer or Hioki representative Transporting e When sending the instrument for repair remove the batteries and pack carefully to prevent damage in transit Include cush ioning material so the instrument cannot move within the pack age Be sure to include details of the problem Hioki cannot be responsible for damage that occurs during shipment e Use the original packing materials when transporting the instrument if possible Before returning for repair Symptom No screen is dis Are the batteries played even correctly inserted when the instru Is the useful bat mentisturned on tery life at an end Insert the new batter ies p 23 e Is the useful bat i The soren iure tery life at an end off after a little while e Has the APS func tion been trig p 55 gered 4 3 Error Display 67 4 3 Error Display If an error is shown on the LCD the instrument needs to be repaired Contact your dealer or Hioki representative Error Display Meaning Remedial Action Main CPU program error Sub CPU programerror pjease contact your dealer EEPROM RW error or Hioki representative Adjustment data error 68 43 Error Display
9. the Android operating system to easily create measurement reports in the field FT6381 availability is limited to certain countries For more information contact your dealer or Hioki representative 1 6 1 3 Names and Functions of Parts 1 3 Names and Functions of Parts Front FT6380 FT6381 Clamp sensor Barrier carn D ena Cale j Tap POWERkey 7 Et voue key p 35 ee CL A Ess Fes Is NENG CG Gece d Backlight key NE I CLAMP ON EARTH TESTER CD onmo Aa On me BB oF z p 35 Display Indicator p 19 pie zu Operation key p 18 L e Used to turn the instrument on and off To temporarily cancel the auto power save function press the POWER key while holding down the HOLD key HOLD key e Holds the measured value display or cancels hold mode To cancel auto power save mode press the POWER key while holding down the HOLD key Backlight key Turns the backlight on and off A Q key e Switches between resistance measurement mode and current measurement mode FT6380 Nor 2012 ane No 120123456 ies BLADE IM JAPAN DFE 1 480mVA D USE BATTERY LAS x 2 Strap hole p 22 1 3 Names and Functions of Parts 17 Serial No Battery cover p 23 Contains Transmitte
10. the OK key which is used to accept setting items and values 1 3 Names and Functions of Parts 19 Display Indicators TL t 1 FILTER O BGS LD TV NOISELMEM o m CR ce panel 0 00 QUE OOO OA Lights up in function mode p 52 EM Perben me na OOO OOO Le hors remene am non so em EI EC Lights up when the Bluetooth function is on Flashes when data is being sent or received model FT6381 only p 44 Lights up in resistance measurement mode when a current that could affect the measured value is detected p 30 Lights up in resistance measurement mode when the mea sured ground loop has a high reactance component or capac itance component 45 or greater When the mark lights up due to a low measured resistance value it is likely ILTER APS ann Ir that the displayed value indicates a shorted measurement loop rather than normal grounding resistance When the mark lights up the loop may have a break in it In this case the mark indicates that the wires have been coupled by capacitance p 30 Lights up during internal memory operations p 40 MEN The number of measurement data points stored in memory is shown to the right 20 1 3 Names and Functions of Parts Lights up when the range display function is on The measurement range is shown to the right 2 1 Measurement process 21 Chapter 2 2 1 Measurement process Measurement Preparations OIPre Operation
11. the harmful effects of water 1 1 Product Overview 11 Chapter 1 1 1 Product Overview The FT6380 and FT6381 Clamp On Earth Tester make ground ing resistance measurements simply by being clamped to multi ple grounded ground wires No auxiliary grounding rod is needed and there is no need to disconnect the ground wire from the grounding rod The instruments also provide AC current measurement function ality and can measure currents ranging from leakage current on the order of several mA to load currents of up to 60 A The FT6381 can only be used in Japan the U S Canada and the EU Because it incorporates Bluetooth wireless technology the instrument emits radio radiation Use of devices that emit radio radiation requires approval in the country of use and use of the instrument in a country or region other than those listed above may be subject to penalty as a violation of law This device complies with part 15 ofthe FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation FCC CAUTION Changes or modifications not expressiy approved by the party responsible for compliance could void the user s authority to operate the equipment Note This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to par
12. value Lo A is less than the set threshold value SR Q The Hi Lo setting is saved once the following setting has been configured If you press the Fn key after configuring the Hi Lo set ting but before saving the threshold and thereby cancel the config uration process any changes to the Hi Lo setting will not be saved 2 5 Convenient function 39 3 Set the threshold After configuring the Hi Lo setting set the threshold Using the V and A keys set the threshold and press the OK key You can move more quickly through threshold values by pressing and holding the W and A keys Et MS TEN Hi Ale Hi AL Juda L LQ Gi fre EGS O0 Hi AL 4 dagat TENEEN Once the settings are complete the screen will switch to the Alarm Settings screen To return to resistance mea surement or current measurement mode press the Fn key again or the A Q key 40 2 5 Convenient function Memory function Saving measurement data Press the MEM key in either resistance measurement mode or current measurement mode The instrument will beep three times and the displayed measured value will be stored along with the memory number 1 to 2 000 in the instrument s internal memory When the number of values saved in the instrument s memory reaches 2 000 the display will show FULL and you will not be able to save additional values Delete unneeded values to free up space ME
13. value 1 00 mA Memory function Memory capacity 2 000 values Auto power save Instrument automatically turns off approx 5 min after last key function operation Function mode Moving between After selecting setting item with W and A keys accept with OK items key Resistance alarm AL Q Resistance Hi Lo threshold settings function Current alarm AL A Current Hi Lo threshold settings function Loading memory MEM READ Load memory values values Clearing MEM CLR Clear last saved memory value or all values memory values Bluetooth BT ON OFF FT6381 operating setting 64 3 2 General Specifications Range display RNG ON OFF function System reset SYS RST 4 1 Cleaning 65 Chapter 4 4 1 Cleaning A CAUTION If foreign matter gets stuck between the tips of the clamp sen sor do not forcibly open or close the sensor but rather use a soft brush or similar implement to carefully remove the foreign matter Accurate measurements cannot be made while foreign matter is stuck between the 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 NOTE Wipe the LCD gently with a soft dry cloth 0 To clean the instrument wipe it gently with a soft cloth moistened with water or mild detergent Never use sol vents such as benzene alcohol acetone ether ketones thinners
14. within the allowable range is displayed for each loop Allowable range 10 0 95 to 1 05 O 250 24 3 to 25 7 Q NOTE If the instrument displays a value outside the allowable range it needs to be repaired Contact your dealer or Hioki representative e The resistance check loop cannot be used to calibrate the instrument To have the instrument calibrated con tact your dealer 2 4 Measurement Procedure 27 2 4 Measurement Procedure DANGER e To avoid electric shock do not touch the por tion beyond the protective barrier during use e When the clamp sensor is opened do not allow the metal part of the clamp to touch any exposed metal or to short between two lines and do not use over bare conductors e The maximum allowable current is 100 A AC continuous or 200 A AC for 2 minutes 50 60 Hz Currents in excess of these values must be avoided as they may damage the instrument or cause bodily injury NOTE The tips of the clamp sensor are precisely manufac 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 stuck between the tips of the clamp sensor do not forcibly open or close the sensor but rather use a soft brush or similar implement to carefully remove the foreign matter Accurate mea surements cannot be made while foreign matter is
15. DEFGHIJKLMNOPQORSTUVWXYZ ARbLdEF H ufinnof9r SEU Fig 12 34 56 7181910 1234567890 Screen displays that differ from the above notation Over range display CCS dun Resistance measurement When the read ing exceeds 1 600 Q D Current measurement When the reading LIL Q exceeds 60 0 A Open display This screen is displayed when the clamp sensor is not completely closed during use hp iu of the resistance measurement function En 6 Safety Information Measurement categories This instrument complies with CAT IV safety requirements To ensure safe operation of measurement instruments IEC 61010 establishes safety standards for various electrical envi ronments categorized as CAT II to CAT IV and called measure ment categories Primary electrical circuits in equipment connected to an AC electrical outlet by a power cord portable CAT Il tools household appliances etc CAT Il covers directly measuring electrical outlet receptacles Primary electrical circuits of heavy equipment fixed installations connected directly to the distri bution panel and feeders from the distribution panel to outlets CAT Il The circuit from the service drop to the service CAT IV entrance and to the power meter and primary overcurrent protection device distribution panel Using a measurement instrument in an environment designated with a higher numbered category than that for which the instru ment is rat
16. F ULL Te gen ua Measured values filter use and the 77 and NOISE marks are saved in memory 2 5 Convenient function 41 Loading a value from the instrument s internal memory 1 Press the Fn key to enter function mode Using the V and A keys select the Read Memory screen and press the OK key For more information about function mode see p 52 Using the W and A 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 Y and A keys To exit the Read Memory screen press the Fn key or the OK key To return to resistance measurement or current mea surement mode press the Fn key again or the A Q key 42 2 5 Convenient function Y Clearing stored data You can clear the last stored data point 1 value or all stored data points 4 Press the Fn key to enter function mode Using the V and A keys select the Clear Memory screen and press the OK key The screen will show CLr For more information about function mode see p 52 Fn Kir mmn MEM J4 r TT DK Lui 2 Using the V and A keys select either the last stored data point or all data points and press the OK key To clear the last stored data point 1 value The screenshot to the left indicates that 34 values have been saved in the ins
17. ati cally and FT6381 measured values will be sent to the Android handset in real time The instrument will not be able to connect to the handset if it has not been paired Refer to Pairing the instrument with an Android handset first use only p 46 to pair the instrument NE 2 5 Convenient function A9 The screen contents vary with the specific Android handset being used For more information about Blue tooth device pairing methods and related procedures see your Android handset s instruction manual Communications between the FT6381 and Android handset are limited to a range of about 10 m but obstacles walls metal shielding etc can shorten this distance or prevent communications from being established The FT6381 s wireless function uses Bluetooth wire less technology that utilizes the 2 4 GHz band It may not be possible to establish communications if there is a wireless LAN IEEE 802 11 b g n or other network device using the same frequency band nearby The application supports Android OS 2 1 or later but proper operation is not guaranteed on all Android handsets For more information about the devices on which proper operation has been confirmed see Hioki s website Adobe s Adobe Reader which is available free of charge on the Google Play store is required in order to view PDF reports Install the application before attempting to view reports The confidentiality of inform
18. ation contained in Blue tooth communications sent from the FT6381 is not guaranteed Hioki is not liable for any unauthorized disclosure or other issue with measured values caused by Bluetooth communications The FT6381 can only be used in Japan the U S Can ada and the EU Because it incorporates Bluetooth wireless technology the instrument emits radio radia tion Use of devices that emit radio radiation requires approval in the country of use and use of the instru ment in a country or region other than those listed above may be subject to penalty as a violation of law 50 2 5 Convenient function Using the FT6381 Communication Software second and subsequent use After turning on the FT6381 launch the FT6381 Communication Software on the Android handset If you wish to use the map function enable the GPS function Once the instrument has been paired it will connect automatically and FT6381 measured values will be sent to the Android handset in real time The instrument will not be able to connect to the handset if it has not been paired Refer to Pairing the instrument with an Android handset first use only p 46 to pair the instrument Switching the FT6381 to connect with the Android handset If you have multiple FT6381 instruments and wish to change the unit to connect to the handset press the Settings button after pressing the menu button on the Android handset and recon figure the Bluet
19. aving measurement data 40 m Making measurements with an Android handset FI8381 01V ae 44 m Enabling the Bluetooth function on the FT6381 45 m Pairing the instrument with an Android handset first use ON nr ten ncsn 46 E Installing the FT6381 Communication Software on the Android handset 47 E Registering the instrument you wish to connect with the FT6381 Communication Software 48 E Switching the FT6381 to connect with the Android M handset u 50 m Using the FT6381 Communication Software second and subsequent use 50 2 6 Advanced Settings and Functions 53 m Enabling disabling the measurement range display UNCON u nn 54 m Enabling disabling the auto power saving APS STORE ee 55 E Reverting the instrument to factory settings system reset ren 56 Chapter 3 Specifications 57 3 1 Measurement Specifications 57 3 2 General Specifications 61 Chapter 4 Maintenance and Service 65 Ab CIRE a nn nan 65 4 2 Troubleshooting nenne nenn nnennn nen 66 E Inspection and Repair uu22220222sse nennen 66 M Before returning for repair ceeeeeeeeeeeeee eens 66 4 3 Error DiIsSplay an ee nie 67 Introduction 1 Introduction Thank you for purchasing the HIOKI Model FT6380 FT6381 CLAMP ON EARTH TESTER To obtain maximum performance fro
20. dicates that incorrect operation presents a AN CAUTION possibility of injury to the user or damage to the instrument NOTE Indicates advisory items related to perfor WIE mance or correct operation of the instrument WEEE marking This symbol indicates that the electrical and electronic appliance is put on the EU market after August 13 2005 and producers of the Member States are required to display it on the appliance under Article 11 2 of Directive 2002 96 EC WEEE This symbol indicates that the product conforms to safety regulations set out by the EC Directive Indicates that the product incorporates Bluetooth wireless technology Bluetooth is a registered trademark of Bluetooth SIG Inc and is used under license by HIOKI E E CORPORATION Indicates that the product conforms to the domestic Japanese technical standards set forth by the Radio Act type certification Indicates the ID number of the wireless module certified by the U S Federal Communications Commission FCC Safety Information 5 Indicates the number of the wireless module certified by Industry Canada Other Symbols IC SO Indicates a prohibited action p Indicates the location of reference information Information displayed on the screen is enclosed in brackets a Bold text indicates alphanumeric characters Ei shown on operation keys The screen of this instrument displays characters in the fol lowing manner ABC
21. e grounding wire itself has formed a loop If the mark lights up there may be a break in the loop In this case the wires are being coupled by capacitance In either of these cases it is recommended to verify that there is neither a short nor a wiring break in the location being measured Do not measure the same location with two or more Clamp On Earth Testers at the same time The instru ments will interfere with each other preventing accu rate measurement 2 4 Measurement Procedure 34 Current Measurement 4 Select current measurement mode with the A Q key Position the conductor in the center of the clamp sensor 32 2 4 Measurement Procedure NOTE The frequency of special waveforms such as at the secondary side of an inverter may not be indicated cor rectly e Depending on the magnitude and frequency of the input current resonances may be heard from the clamp jaw This does not affect the measurement e Do not input a current in excess of the maximum allow able current for the current range being used 2 4 Measurement Procedure 33 Measuring zero phase current When measuring zero phase current clamp all of the circuits at once Single phase 2 lead circuits Load device three phase 3 lead circuits clamp all three leads ofthe Circuit 34 2 4 Measurement Procedure Do not input current that exceeds the maximum continu ous input of the electric current range e
22. easurement specifications Guaranteed ac Sine wave input curacy conditions Measurement Digital sampling method true RMS measurement method Crest factor 5 0 or less for the 60 A range 1 7 or less Conductor Within 0 5 rdg using the center of the sensor as the reference position effects in all positions Magnetic field 10 mA or less in an external magnetic field of 400 A m at 50 60 Hz interference AC Maximum allow 100 A AC continuous 200 A AC for 2 minutes 50 60 Hz able input For frequency derating characteristics during continuous input see the following diagram 120 2 8 Gain db 3 Pal Leur o 1000 156 Frequency Hz Effective 0 05 mA to 60 0 A measuring range Zero suppression Less than 0 05 mA Overrange Greater than 60 0 A 60 3 1 Measurement Specifications Range Accuracy Range Resolu tion Guaranteed accuracy frequency range Accuracy Filter off Filter on 20 00 mA 1 00 mA to 20 00 mA 45 lt f lt 66 Hz 2 0 rdg 0 05 mA 2 0 rdg 0 05 mA 30 lt f lt 45 Hz 66 lt f lt 400 Hz 2 5 rdg 0 05 mA 200 0 mA 18 0 mA to 200 0 mA 45 lt f lt 66 Hz 2 0 rdg 0 5 mA 2 0 rdg 0 5 mA 30 lt f lt 45 Hz 66 lt f lt 400 Hz 2 5 rdg 0 5 mA 45 lt f lt 66 Hz 2 0 rdg 0 005 A 2 0 rdg 0 005
23. ed could result in a severe accident and must be carefully avoided Use of a measurement instrument that is not CAT rated in CAT Il to CAT IV measurement applications could result in a severe accident and must be carefully avoided Service Entrance Distribution Panel Internal Wiring CAT Il CAT III _ i UES Service Drop gt I CAT IV Power Meter m Outlet a i Fixed Installation Operating Precautions 7 Operating Precautions Follow these precautions to ensure safe operation and to obtain the full benefits of the various functions Preliminary Checks Before using the instrument for the first time verify that it oper ates normally to ensure that no damage occurred during storage or shipping If you find any damage contact your dealer or Hioki representative Instrument Installation Operating temperature 10 to 50 C 14 to 122 F Be sure to use batteries that are suited for use under the envi ronmental conditions in which you are using the instrument Operating humidity 80 RH or less non condensating Avoid the following locations that could cause an accident or damage to the instrument Exposed to direct 7 se hi z In the presence of cor gt perature gases Exposed to water oil Exposed to strong other chemicals or RYK electromagnetic fields solvents Exposed to Sb Near electromagnetic high humidity or con radiators densation Near
24. ee the following diagram Bere x Bo EEE RP EEE EEE Specs ene ei RARE RE ESSENSE ESSERE EHR 196 1000 Frequency Hz Current A i e To avoid damage to the instrument protect it from physical shock when transporting and handling Be especially careful to avoid physical shock from dropping e Be careful to avoid dropping the instrument or otherwise sub jecting them to mechanical shock which could damage the mating surfaces of the core and adversely affect measure ment e Although this instrument is dust resistant it is not completely dust or waterproof To prevent possible damage avoid using in dusty or wet environments e Do not slant the device or place it on top of an uneven surface Dropping or knocking down the device can cause injury or damage to the device 10 Operating Precautions A CAUTION e The protection rating for the enclosure of this device based on EN60529 is IP40 The rating applies to the clamp sensor when in the closed position IP40 This indicates the degree of protection provided by the enclo sure of the device against use in hazardous locations entry of solid foreign objects and the ingress of water 4 Protected against access to hazardous parts with wire mea suring 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
25. electromagnetic radiators e g high frequency induction heating systems and IH cooking utensils Exposed to high lev els of particulate dust Subject to vibration 8 Operating Precautions Handling the Instrument DANGER e To avoid short circuits and potentially life threatening hazards never attach the clamp to a circuit that operates at more than 600 V or over bare conductors e The maximum rated voltage between input terminals and ground is 600 VAC Measuring a voltage in excess of this rating relative to ground could damage the instrument and result in bodily injury e 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 e When the clamp sensor is opened do not allow the metal part of the clamp to touch any exposed metal or to short between two lines and do not use over bare conductors A WARNING To avoid electric shock when measuring live lines wear appropriate protective gear such as insulated rubber gloves boots and a safety helmet Operating Precautions 9 A CAUTION e Do not input a current in excess of the maximum allowable current Doing so may damage the instrument or cause burns The maximum allowable current is 100 AAC continuous or 200 A AC within two minutes at 50 60 Hz For more informa tion about the frequency derating characteristics during con tinuous input s
26. ement of current including harmonic components 2 0 2 4 6 8 Gain dB m Ka fe DE I iy kiai ee ia at E 10 100 1000 Frequency Hz 2 5 Convenient function 37 Alarm function Judging measured values and sounding an alarm You can sound an alarm A high tone signifies a high alarm while a low tone signifies a low alarm using previously set thresholds by pressing the frei key Thresholds and other settings must be configured in advance To cancel the alarm function press the ten key again ren 4 Configuring the alarm settings Press the Fn key to switch to function mode Using the V and A keys select the resistance or current Alarm Settings screen and press the OK key For more information about function mode see p 52 ten ECS dus gt Hi AL ain L Juo Alarm Settings screen for resistance measurement Gi re EGS uns HAL Nts LI LI Alarm Settings screen for current measurement 38 2 5 Convenient function 2 Set the alarm type Hi Lo Using the V and A keys select the alarm type Hi Lo and press the OK key The next threshold setting will start flash ing Elton 2S din Hi The alarm will sound if the measured value tat Hi AL is greater than the set threshold value Q Etes ae Lo The alarm will sound if the measured
27. eries or different types of batter ies Also be careful to observe battery polarity during installa tion Otherwise poor performance or damage from battery leakage could result e To avoid corrosion from battery leakage remove the batteries from the instrument if it is to be stored for a long time NOTE The q__ indicator lights when battery voltage becomes low Replace the batteries as soon as possible e Before replacing the batteries make sure that the Slide Switch is OFF e After use always turn OFF the power e If the battery is completely exhausted the display will show BAttLo and the instrument will automatically turn off 24 22 Preparing for Measurement Required Items e Phillips screwdriver e LR6 alkaline battery 2 Normal procedure 1 Verify that the instrument is off 2 Remove the fastening screws of the battery cover using a Phillips screwdriver 3 Remove the battery cover 4 Insert two new batteries LRO6 alkaline batteries taking care to orient them properly 5 Replace the battery cover and tighten the fastening screws Battery Status Indicator This indicator is displayed at the top right corner LL When new alkaline batteries have been installed Jun When 2 3 of the battery power remains When 1 3 of the battery power remains z No battery power remains Replace with new batteries 2 3 Pre Operation Inspection 25 2 3 P
28. g settings and operations are available e Resistance alarm settings e Current alarm settings e Loading values from memory Clearing data from the instrument s Bluetooth setting memory Press the Fn key to enter func Fn co FILTER MEM EE Using the V and A keys se v a ox 2 lect the desired setting Accept the setting with the OK 3 key 2 3 While in function mode the ij mark will light up Press the Fn key or the A Q key to exit function mode Resistance Alarm 00 p 29 Gi ve APSE LL Hi AL OTA Current alarm settings p 31 t 00 Loading values from memory p 41 Clearing data from the instrument s memory p 42 2 6 Advanced Settings and Functions 53 2 6 Advanced Settings and Functions Advanced settings can be configured in sub function mode In sub function mode the following settings and operations are available e Measurement range display setting p 54 e Auto power saving APS setting p 55 e System reset to revert to factory settings p 56 To enter sub function mode turn on the instrument by pressing the POWER key while holding down the Fn key Press the POWER key while holding down the Fn key To exit sub function mode press the POWER key to turn off the instrument and then turn it back on 54 2 6 Advanced Settings and Functions Enabling disabling the measurement range display function 4 Enter s
29. h lets you hold the measured value The button notifies the user of the hold status by flashing while the value is being held Backlight function p 35 The instrument uses a white LED for excellent visibility so that dis play values can be read clearly even in dark locations Auto power save APS function p 55 An auto power save function keeps batteries from running down when you forget to turn off the instrument 1 2 Features 15 Alarm function p 37 By setting a threshold you can have the instrument make a PASS FAIL judgment and notify you of the result with a buzzer You can set separate thresholds for resistance and current measurements and select judgment criteria whether to generate a FAIL result when the reading is greater than or less than the threshold Filter function p 36 Widespread use of switching power supplies and inverters has led to 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 radation of insulation and leakage current including this harmonic component y Internal memory p 40 The instrument s internal memory can record up to 2 000 measured values Automatic measurement report function with Android connectivity F T6381 only p 44 The FT6381 features Bluetooth wireless technology and can be connected to a smartphone running
30. les Cet quipement est conforme aux limites d exposition aux rayonnements nonc es pour un environnement non contr l et respecte les r gles d exposition aux fr quences radio lectriques RF CNR 102 del IC Cet quipement met une nergie RF tr s faible qui est consid r e conforme sans valuation de exposition maximale autoris e Cependant cet quipement doit tre install et utilis en gardant une distance de 20 cm ou plus entre le dispositif rayonnant et le corps l exception des extr mit s mains poignets pieds et chevilles 14 1 2 Features 1 2 Features Compact low profile sensor The compact low profile sensor can be used to clamp ground wires with ease The sensor design dramatically speeds the measurement process by eliminating the need to pull out ground wires for clamping or dig around the ground rod or wire Broad dynamic range The instrument can easily measure grounding resistance of up to 0 02 to 1 600 with its auto range function Current measurement ranges from small leakage current maximum resolution 10 uA to a maximum of 60 A Noise check function p 30 The instrument automatically detects noise that may affect ground ing resistance measurement and displays a NOISE mark 9 True RMS display True RMS calculation allows the instrument to accurately measure distortion waveform currents Data hold function p 35 A large button that is easy to pus
31. m the instrument please read this manual first and keep it handy for future reference Registered Trademarks Bluetooth is a registered trademark of Bluetooth SIG Inc USA e Android Google Play is a registered trademark of Blue tooth Google Inc e Adobe and Reader are either registered trademarks or trade marks of Adobe Systems Incorporated in the United States and or other countries 2 Verifying Package Contents Verifying Package Contents When you receive the instrument inspect it carefully to ensure that no damage occurred during shipping In particu lar check the accessories panel switches and connectors If damage is evident or if it fails to operate according to the specifications contact your dealer or Hioki representative Package Contents Confirm that these contents are provided O FT6380 or FT6381 Clamp On Earth Tester 1 O Resistance Check Loop 1 oO Instruction Manual 1 OD Carrying Case 1 O LR6 alkaline batteries 2 O Strap 1 Use the original packing materials when transporting the instrument if possible For other transportation notes refer to the Transporting p 66 Safety Information 3 Safety Information Z WARNING This instrument is designed to comply with IEC 61010 Safety Standards and has been thoroughly tested for safety prior to shipment However mishandling during use could result in injury or death as well as damage to the instrumen
32. nt function 45 Enabling the Bluetooth function on the FT6381 1 Press the Fn key to enter function mode For more information about function mode see p 52 2 Using the V and A keys select the Bluetooth Setting screen and press the OK key Using the V and A keys select on on the Bluetooth Setting screen and press the OK key to enable the Blue tooth function NOTE Use of Bluetooth functionality shortens the battery life compared to normal use It is recommended to turn off Bluetooth functionality when not in use 46 2 5 Convenient function Pairing the instrument with an Android handset first use only 4 Select Wireless and Networks from the Android handset s Settings button After enabling the Bluetooth function select Scan for devices from Bluetooth settings exact words varies with the specific Android handset being used variants include Search for devices and Detect nearby terminals 3 When the handset discovers FT6381 XXXXXXXXX where XXXXXXXXX is the serial number found on the back of the instrument pair the instrument Note that previously paired devices may appear in a separate column labeled with language such as Paired devices rather than in the search results 4 Enter 0000 as the PIN number aw 3 ES ul 19 47 Wireless amp network settings ner Offline mode Disable all wireless connections Blueto
33. ooth device settings If you are unable to establish a Bluetooth connection Check the following if you are unable to establish a Bluetooth connection between the FT6381 and the Android handset e Is the Bluetooth function enabled on both the Android handset and the FT6381 e Has the FT6381 in question been paired on the Android handset s Bluetooth settings screen If the instrument has not been paired refer to Pairing the instrument with an Android handset first use only p 46 to pair it 2 5 Convenient function 51 About the FT6381 Communication Software The application provides the following functionality Sending measurement data from the LCD display to the Android handset in real time Saving and viewing measurement data including time stamp GPS position data for the measurement location and map data Creating reports from measurement data Single reports created from measurement data from one location e Summary reports that present a summary of multiple sets of measurement data with the ability to add comments and change header and footer information Outputting measurement data as a CSV file Sending measurement data as an e mail Downloading the contents of the FT6381 s internal memory For more information about the FT6381 Communication Soft ware application refer to the application help 52 2 5 Convenient function Function mode In function mode the followin
34. oth v Wi Fi Device name m Turn on Wi Fi SH 12C Wi Fi settings Discoverable Set up amp manage wireless access points Make device discoverable Bluetooth pairing request Home network settings Detailed Bluetooth Settings Set home network settings Set detailed Bluetooth settings Type PIN to pair with 2 FE FT6381 120300110 Try 0000 or luetooth v P A Scan for devices E 1234 a m r Bluetooth settings 4 0000 Enter Daa ae mm ml lt P g F16381 120300111 I l h m m m m m m m l Portable hotspot Share your phone s mobile connection as a portable Wi Fi hotspot VPN settings Set up amp manage Virtual Private Networks VPNs Mobile networks Pairing is only necessary the first time you use the instru ment with the handset When using multiple FT6381 instru ments you will need to pair each instrument 2 5 Convenient function A7 The screen contents vary with the specific Android handset being used For more information about Bluetooth device pair ing methods and related procedures see your Android hand set s instruction manual Installing the FT6381 Communication Software on the Android Y handset Search for FT638 on the Google Play M store and download and install the FT6381 Communication Software Google account is required in order to download applications from the Google Play store For more information about how to register for a Google account contact the store f
35. pera ture and humidity Temperature 10 to 50 C Measurement accuracy x 0 1 C except 23 C 5 C characteristics Maximum rated 600 VAC measurement category IV anticipated tran voltage to earth sient overvoltage 8000 V Resistance measurement specifications Guaranteed No reactance component no noise current accuracy conditions Effective 0 02 Q to 1600 Q measuring range Zero suppression Less than 0 02 Q Overrange Greater than 1600 Q Measurement Analog synchronous detection method effective resistance mea Method surement Injected signal Approx 2 4 kHz frequency Injected voltage Approx 9 0 mV with load open level 58 3 1 Measurement Specifications Range Accuracy Range Resolution Accuracy 0 20 Q 0 02 Q to 0 20 Q 0 01 Q 1 5 rdg 0 02 Q 2 00 Q 0 18 Q to 2 00 Q 0 01 Q 1 5 rdg 0 02 Q 20 00 Q 1 80 Q to 20 00 Q 0 01 Q 1 5 rdg 0 05 Q 50 0 Q 18 0 Q to 50 0 Q 0 10 1 5 rdg 0 1 Q 100 0 Q 50 0 Q to 100 0 0 0 10 1 5 rdg 0 5 Q 200 0 Q 100 0 Q to 200 0 Q 0 20 3 0 rdg 1 0 Q 400 Q 180 Q to 400 Q 1Q 5 rdg 5 Q 600 Q 400 Q to 600 0 20 10 rdg 10 Q 1200 Q 600 Q to 1200 Q 20 rdg 1600 Q 12000 to1600 Q 35 rdg To obtain the measurement accuracy at a range boundary apply the accuracy of the higher accuracy range 3 1 Measurement Specifications 59 Current m
36. perated keeping the radiator at least 20cm or more away from person s body excluding extremities hands wrists feet and ankles This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme a la norme NMB 003 du Canada 1 1 Product Overview 13 This device complies with Industry Canada licence exempt RSS standard s Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device Le pr sent appareil est conforme aux CNR d Industrie Canada applicables aux appareils radio exempts de licence L exploitation est autoris e aux deux conditions suivantes 1 l appareil ne doit pas produire de brouillage et 2 l utilisateur de l appareil doit accepter tout brouillage radio lectrique subi m me si le brouillage est susceptible d en compromettre le fonctionnement This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment and meets RSS 102 of the IC radio frequency RF Exposure rules This equipment has very low levels of RF energy that it deemed to comply without maximum permissive exposure evaluation MPE But it is desir able that it should be installed and operated keeping the radiator at least 20cm or more away from person s body excluding extremities hands wrists feet and ank
37. r Module IG 123A B TWT12A R O1 XOO013 Contains Tranemitier Module FCC ID QOGWT12 A WARNING DISCONNECT CLAMP FROM CIRCUIT BEFORE dee _ RATING 1 6V x 2 om 460mVA USE BATTERY LRS x 2 1 8 1 3 Names and Functions of Parts Operation key Fn te FILTER MEM Description Switches to function mode which is used to configure set tings Pressing this key again will return to resistance mea surement mode or current measurement mode wen Enables the alarm function p 37 e When the alarm function is enabled the instrument will notify the user with the buzzer if a reading is greater than or less than a preset threshold Alarm function threshold settings can be configured in func tion mode p 39 In function mode this key serves as the WV key which is used to select setting items and values FILTER e Pressing this key while using the current measurement func tion enables the low pass filter to reject unneeded harmonic components p 36 e Pressing it while using the resistance measurement function enables the moving average function allowing more stable measurement p 36 In function mode this key serves as the A key which is used to select setting items and values Saves measurement data to the instrument s internal mem ory p 40 In function mode this key serves as
38. re Operation Inspection Before using the instrument for the first time verify that it oper ates normally to ensure that no damage occurred during stor age or shipping If you find any damage contact your dealer or Hioki representative 1 Inspecting the instrument Is the instrument damaged Do not use the instrument if it e Is the clamp sensor cracked is damaged as doing so may or otherwise damaged result in electric shock Have the instrument repaired 2 Inspecting the instrument after turning it on An error is displayed The instrument may be mal functioning Have the instru ment repaired Does the screen turn on when the instrument is turned on Yes No The screen is not on The screen shows an error The batteries may be dead Replace the batteries and try again Using the included resistance The screen is on check loop to inspect the instru ment p 26 End of inspection 26 23 Pre Operation Inspection Using the included resistance check loop to inspect the instrument Before turning on the instrument be sure to read Operating Pre cautions p 8 Inspecting the instrument with the resistance check loop Verify that there is no foreign matter lodged between the tips of the clamp sensor and that the sensor can be closed and opened smoothly If so clamp the included resistance check loop and verify that the instrument is operating properly Verify that a value
39. rom which you purchased the Android handset EU o FT6381 Q aw APPS ry FT6381 Communication Software Q Google S kh m m m m m m m Download Skype oa Speed Test One Seg Play Store V2 amp p AS b i Settings Vulkdno N W Maps 13 04 a Sc TR A Enter and search D ft6381 112131415161718190 amp es 1 A8 2 5 Convenient function NOTE The application is free but the user is responsible for any Internet connection costs incurred in the course of downloading or using the application Since such costs may be incurred during use of the application it is rec ommended to use a fixed price plan Hioki is not liable for any Internet connection costs Registering the instrument you wish to connect with the FT6381 Communication Software 1 Turn on the FT6381 Launch the FT6381 Communication Software on the Android handset If you wish to use the map function enable the GPS function 2 From the list of Bluetooth devices select FT6381 XX XXXXXXX and press the Settings button The FT6381 will be registered Select your Bluetooth device Scan Devices FT6381 1 20300110 00 07 80 4A 26 E2 te Alarm Disabled 63 Bluetooth Connected GPS Updated 4042 0m network i Store Data Select your Bluetooth device Settings sx Stored Data List i PDF Report List Once the instrument has been paired it will connect autom
40. rounding elec trodes the error can be limited om 50 ap 120 mb 100 100 100 109 109 100 1002 100 100 100 100 Measuring method 1 Select resistance measurement mode Select resistance measurement mode with the A O key 2 Clamp the grounding wire you wish to measure The resistance value will be displayed 30 2 4 Measurement Procedure NUE Verify that the NOISE mark is not lit up When the current flowing through the grounding wire is high approximately 2 5 A or greater with a commercial frequency of 50 60 Hz the current will affect measured values making it impossible to measure the resistance Check the current flowing through the grounding wire Open display The screen will show OPEn if the clamp is not com pletely closed Close the clamp completely and repeat the measurement If an extremely large current is flowing through the grounding wire the screen may display OPEn even if the clamp is completely closed This does not signal a malfunction Check the current flowing through the grounding wire by using the instrument s current mea surement mode Inductor and capacitor marks If the 4 marks next to the resistance mark light up during measurement the grounding resistance includes an in series L or C component If the mark is shown with an extremely small measured value such as 0 1 Q the instrument may be unable to measure the grounding resistance because th
41. stuck between the 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 instru ment inspected and calibrated by your dealer 28 2 4 Measurement Procedure Resistance Measurement Measuring Principle 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 s 3151 EARTH HiTESTER If the grounding resistance of the measurement target is repre sented by R and the grounding resistance values of other grounded locations are represented by R Ro R the resis tance value measured by the product is as follows Rm Rxt 3 u If n is sufficiently large and each Ri value is sufficiently small and the second term can be ignored allowing the value of ale Ry 1 z R to be measured l i l 2 4 Measurement Procedure 29 Example with actual measured values The following provides an example with actual measured values The more grounding electrodes there are in the multiple grounded installation the higher the accuracy of the obtained values Alternately if even one grounding electrode has a small value for example 1 Q accurate values can be approached even if there are few grounding electrodes Since most multiple grounded systems have a large number of g
42. t However using the instrument in a way not described in this manual may negate the provided safety features Be certain that you understand the instructions and precautions in the manual before use We disclaim any responsibility for accidents or injuries not resulting directly from instrument defects This manual contains information and warnings essential for safe operation of the instrument and for maintaining it in safe operating condition Before using it be sure to carefully read the following safety precautions Safety Symbols In the manual the symbol indicates particularly important information that the user should read before using the instrument The symbol printed on the instrument indicates that the user should refer to a corresponding topic in the manual marked with the symbol before using the relevant function Indicates a double insulated device Indicates AC Alternating Current Indicates that the instrument may be connected to or disconnected from a live circuit Indicates the power on off button Safety Information The following symbols in this manual indicate the relative impor tance of cautions and warnings Indicates that incorrect operation presents an AX DANGER extreme hazard that could result in serious injury or death to the user A Indicates that incorrect operation presents a WARNING significant hazard that could result in serious injury or death to the user In
43. t 15 of the 12 1 1 Product Overview FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installa tion This equipment generates uses and can radiate radio fre quency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio com munications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help This transmitter must not be co located or operated in conjunc tion with any other antenna or transmitter This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment and meets the FCC radio frequency RF Exposure Guidelines in Supplement C to OET65 This equipment has very low levels of RF energy that it deemed to comply without maximum permissive exposure eval uation MPE But it is desirable that it should be installed and o
44. trument s memory g ma To clear all data points CHEN AD The screen will show ALL 2 5 Convenient function 43 The OK mark will flash on the LCD once you select the data to clear so that you can confirm your intentions Press the OK key again to clear the data e To cancel press the Fn key To return to resistance measurement or current mea surement mode press the Fn key again or the A Q key A4 2 5 Convenient function Making measurements with an Android handset FT6381 only By enabling the FT6381 s Bluetooth function you can transfer measurement data to an Android handset to create measure ment reports For more information refer to the help function of the FT6381 Communication Software an app for Android handsets In addition to installing the application the following two sets of connection settings must be configured in order to use the Blue tooth function e Pairing the Android handset and FT6381 e Registering the FT6381 connection with the FT6381 Commu nication Software Use the following procedure to configure the connection settings Measurement process 1 Enable the FT6381 s Bluetooth function p 45 2 air the instrument with the Android hand p 46 Install the FT6381 Communication Software p 47 on the Android handset 3 Register the instrument you wish to connect p 48 with the FT6381 Communication Software 2 5 Convenie
45. ttery x 2 3 VDC 450 mVA Approx 35 hours 25 Q measurement backlight off Bluetooth OFF Model FT6381 23 C reference Approx 73 Wx218 Hx43 D mm 2 87 Wx8 58 H x1 69 D exclud ing projections 032 mm Approx 620g 21 9 oz Except for the battery Carrying case 1 Resistance check loop 1 Strap 1 LRO6 alkaline battery x 2 Instruction manual 1 Display specifications LCD display Display refresh rate Max 2 000 count Approx 2 times sec G2 3 2 General Specifications Range switching Auto range Overrange O L display display Data hold fateyMs mark lights up display Function mode mark lights up Flashes in subfunction mode display Filter display FILTER mark lights up Auto power save EX mark lights up display Remaining Display of remaining battery power in 4 stages dumm battery display Memory number MEM mark lights up display Range display mark lights up Alarm display te mark lights up Confirmation of OK mark lights up memory erasure and reset operation Noise mark NOISE mark lights up display When there is a superimposed noise current during resistance measurement accuracy cannot be guaranteed mAVA unit mA mark or A mark lights up display Q unit display Q mark lights up AC current mark N mark lights up during AC current measurement display Resistance mark _R_ mark lights up during resistance measurement display Inductance mark
46. ub function mode Press the POWER key while holding down the Fn key Using the V and A keys select the Range Display Setting screen and press the OK key Using the V and A keys switch the range display function on or off and press the OK key D N The measurement range is displayed using values only Example 1 600 Q range 1 600 The units for the measurement range are the same as for the displayed measured value 2 6 Advanced Settings and Functions 55 Enabling disabling the auto power saving APS function The auto power saving APS function prevents unintentional battery consumption when you forget to turn off the instrument The APS function activates automatically when the instrument is turned on The instrument will automatically turn off once about 5 minutes pass without any operation an alarm will sound for about 10 seconds first Pressing any key while the alarm sounds will reset the time before the instrument turns off to about 5 minutes Enter sub function mode Press the POWER key while holding down the Fn key Using the W and A keys select the APS Setting screen and press the OK key The APS function is enabled when the screen shows on Using the V and A keys switch the APS function on or off and press the OK key When the APS function is disabled in sub function mode APS will remain disabled when the instrument s power is cycled 56 2
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