Hioki CM4002 Instruction Manual Download Page 41

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Performing Measurement

2.1 Measuring Leakage Current

DANGER

Bodily injury

Inspect the instrument and verify proper operation before use.

Use of the instrument while malfunctioning could result in serious bodily injury. If

you find any damage, contact your authorized Hioki distributor or reseller.

See “1.3 Inspection Prior to Measurement” (p. 31).

Do not touch the section beyond the barrier during operation.

Doing so could cause electric shock.

See “Part Names” (p. 18).

2 Performing Measurement

HIOKI CM4002A961-02

Summary of Contents for CM4002

Page 1: ...CM4002 CM4003 Instruction Manual AC LEAKAGE CLAMP METER EN Dec 2021 Revised edition 2 CM4002A961 02 21 12H Read carefully before use Keep for future reference HIOKI CM4002A961 02...

Page 2: ...HIOKI CM4002A961 02...

Page 3: ...CM4003 CM4002 LR6 Alkaline batteries 2 C0203 Carrying Case Instruction Manual this manual Please visit Hioki s website to download other language versions in PDF format p 1 Operating Precautions 0990A...

Page 4: ...tion p 41 Freezing the readouts to take readings hold function p 43 Viewing the maximum minimum average and peak values of the measured data p 46 Receiving an alarm if a measured value exceeds the thr...

Page 5: ...Details of Intended Operations ii Introduction 1 Overview 4 Principle of leakage current measurement 5 Notations 6 Options 9 Safety Information 10 Operating Precautions 14 Part Names 18 Operation Keys...

Page 6: ...ming Measurement 33 2 1 Measuring Leakage Current 33 Measurement procedure 34 Locating an insulation failure identifying GFCI and RCD trip events 38 Precautions for measuring the load current 40 2 2 F...

Page 7: ...y backlight 56 Warning backlight 57 2 11 Wireless Communications Function 58 Using GENNECT Cross 58 Z3210 to Excel direct data entry function Excel direct input function HID function 63 2 12 Power Key...

Page 8: ...61557 13 82 4 Maintenance and Service 83 Calibration 83 Cleaning 83 Disposing of the Instrument 83 4 1 Troubleshooting 84 Before sending the instrument to be repaired 84 4 2 Error Displays 88 Index 89...

Page 9: ...read the separate document entitled Operating Precautions before use Latest edition of instruction manual multilingual The contents of this manual are subject to change for example as a result of prod...

Page 10: ...possessed by a graduate of an electrical program at a technical high school Trademarks Microsoft Excel is a registered trademark or a trademark of Microsoft Corporation in the United States and other...

Page 11: ...3 Introduction HIOKI CM4002A961 02...

Page 12: ...erial is used for the jaws Effects of external electromagnetic noise are minimized to enable the measurement with high reproducibility Measuring a wide range of current from leakage current to load cu...

Page 13: ...that consists of a magnetic core and coil The current transformer generates the current corresponding to the magnetic field secondary current The detection resistor converts this secondary current in...

Page 14: ...death WARNING Indicates a potentially hazardous situation that if not avoided could result in death or serious injury IMPORTANT Indicates information or content that is particularly important from the...

Page 15: ...ent may be connected to or disconnected from a live conductor Indicates an instrument that has been protected throughout by double insulation or reinforced insulation Indicates the limit value of an e...

Page 16: ...and of full scale Reading display value Indicates the value displayed by the instrument Limit values for reading errors are expressed as a percentage of the reading of reading or rdg Full scale maximu...

Page 17: ...the reader to see below for additional information Options The options listed below are available for the instrument To order an option please contact your authorized Hioki distributor or reseller Op...

Page 18: ...in a way not described in this manual may negate the provided safety features Carefully read the following safety notes before using the instrument DANGER Bodily injury Familiarize yourself with the...

Page 19: ...e to do so could cause the operator to experience an electric shock Moreover it could cause serious events such as heat generation fire and an arc flash due to a short circuit Protective gear WARNING...

Page 20: ...rument for measurements on a mains circuit that exceeds the range of the measurement category rated for the instrument Do not use a measuring instrument without a measurement category rating for measu...

Page 21: ...urements on distribution boards including secondary meters photo voltaic panels circuit breakers wiring including cables bus bars junction boxes switches socket outlets in the fixed installation and e...

Page 22: ...safely and in a manner that allows it to perform as described in its specifications Carefully read the separate document entitled Operating Precautions before use Use of the instrument should conform...

Page 23: ...Do not measure any current in excess of the maximum input current Doing so can cause overheating of the sensor resulting in bodily injury fire or damage to the instrument The instrument has a maximum...

Page 24: ...round wire before measurement Failure to do so could cause the operator to experience an electric shock CAUTION Electric shock Do not bend or pull on cables at temperatures of 0 C or lower The cable i...

Page 25: ...the jaws Do not drop the instrument Do not subject the instrument to any shock Doing so may adversely affect the measurement accuracy and open close operation Electric circuit on which DC components...

Page 26: ...18 Part Names Part Names Front Rear The illustration shows the CM4003 6 4 1 7 2 9 3 8 5 6 HIOKI CM4002A961 02...

Page 27: ...r The serial number consists of 9 digit numbers The first four digits indicate the year its first two digits omitted and the month of manufacture 6 Operation keys p 20 7 Display panel p 22 8 Battery c...

Page 28: ...ld function p 43 Sets or switches the maximum minimum average and peak values p 46 Resets the maximum minimum average and peak value display Cycles through the range 200 0 A 6 000 mA 60 00 mA 600 0 mA...

Page 29: ...USH on or off p 47 Toggles the display backlight on or off p 56 Switches the output function OUTPUT CM4003 p 51 RMS RMS value WAVE waveform Off Toggles the wireless communications function on or off T...

Page 30: ...3 14 11 1 Wireless communications function p 58 2 COMP Comparator p 48 3 EVENT Simple event recording Event recording p 49 p 62 4 INRUSH Inrush current measurement AC INRUSH p 47 5 APS Automatic power...

Page 31: ...p 48 12 HOLD Freezing the readouts p 43 MAX MIN AVG Maximum minimum average values p 46 PEAK MAX PEAK MIN Highest of peak value lowest of peak value FILTER Filter function p 41 13 EVENT kHz mA Measur...

Page 32: ...24 Display Panel HIOKI CM4002A961 02...

Page 33: ...uate remaining battery power Appears As the remaining power decreases the indicators disappear from the left Appears The batteries are exhausted Replace the batteries in good time Blinks The batteries...

Page 34: ...row the battery into a fire Doing so can cause the battery to explode resulting in bodily injury Before removing the battery cover remove the instrument from an object under measurement and turn off i...

Page 35: ...sult in serious bodily injury Besides if the screw of the battery cover is not tightened the cover will not secured Secure the battery cover with the screw attached to the instrument at the time of sh...

Page 36: ...e batteries Remove the batteries when the instrument is not in use for an extended period of time Failure to do so may cause the battery to leak damaging the instrument Before handling the Z3210 elimi...

Page 37: ...instrument from the object under measurement and turn off the instrument 2 Loosen the screw and remove the battery cover 3 Remove the old batteries when replacing the batteries 4 Install new batteries...

Page 38: ...the auto power save function will be disabled 1 Remove the instrument from the object under measurement and turn off the instrument 2 Connect the L9097 Connection Cable included to the cable connectio...

Page 39: ...trument is damaged ask for repair Otherwise the operator may receive an electric shock No segments are missing Pressing the key while holding down the key during a power off condition allows all segme...

Page 40: ...32 Inspection Prior to Measurement HIOKI CM4002A961 02...

Page 41: ...Use of the instrument while malfunctioning could result in serious bodily injury If you find any damage contact your authorized Hioki distributor or reseller See 1 3 Inspection Prior to Measurement p...

Page 42: ...O Change the range as required p 20 2 Clamp the instrument around the object under measurement Wear appropriate protective gear such as gloves Clamp the instrument so that the object under measurement...

Page 43: ...ase 3 wire circuit Ig Leakage current PE Load device Ig Measurement using ground wire Clamp around only one wire 1 1 Measurement of zero phase current Clamp around the wires together in a bundle 2 3 2...

Page 44: ...urrent Clamp around the wires together in a bundle 2 3 2 3 Circuit breaker Other circuit Clamp around two wires together in a bundle in the single phase 2 wire circuit Clamp around four wires together...

Page 45: ...is measured The jaws are not closed completely In particular if the external dimension of the object under measurement is large such as when the instrument is clamped around three phase wires together...

Page 46: ...to locate an insulation failure To investigate an intermittent earth leakage such as intermittent ground fault circuit interrupter GFCI and residual current device RCD trip events the following funct...

Page 47: ...urement by clamping around bundled wires not at location 3 but location 2 If the insulation on the load device has deteriorated at location B in the figure you can detect the leakage current through t...

Page 48: ...d OK NO NO NO Do not clamp around two or more wires Do not pinch a wire Special waveforms such as that flowing through the secondary side of the inverter may not be measured In accordance with the mag...

Page 49: ...can eliminate unnecessary high frequency components low pass filter Enable the filter function Frequency characteristic example 6 mA range 20 15 10 5 0 5 10 10 100 1 k 10 k Gain dB Frequency Hz Filte...

Page 50: ...oss FAQ Measured values vary greatly depending on the measurement range of the leakage current meter https gennect net en cross measured values vary greatly depending on the measurement range of the l...

Page 51: ...alue is stable the display refresh will be stopped automatically Press Pressing the key again can disable the function 1 s Hold down the key for 1 s or longer Pressing the key again can disable the fu...

Page 52: ...page The instrument continues to freeze the readouts until the auto hold conditions are satisfied again Start Stop Start Stop Start Stop Threshold value Example 10 0 A Auto hold Example 50 0 A Auto ho...

Page 53: ...tion range and threshold value may vary depending on the range Range Variation width Threshold value 6 000 mA 200 counts or less 300 counts 60 00 mA 100 counts or less 100 counts 600 0 mA 6 000 A 60 0...

Page 54: ...auto range the range is fixed at the presently set range MAX MIN AVG PEAK MAX PEAK MIN 4 4 Freezes the readouts PEAK MAX PEAK MIN MAX Display refresh interval Waveform Measured value RMS value MIN Ma...

Page 55: ...cluding DC components cannot be measured accurately Inrush current occurs Auto hold of measured value INRUSH will blink 1 1 Set the range p 20 The inrush measurement range is set as follows in accorda...

Page 56: ...is enabled 1 Enable the comparator function 2 Set the range main readout Press Pressing the key again can disable the function 200 0 A 6 000 mA 60 00 mA 600 0 mA 6 000 A 60 00 A Confirm COMP will app...

Page 57: ...nking red backlight will warn you that the maximum value exceeds the set threshold value 1 1 Enable the simple event recording function 3 3 Set the filter In the power off state Switch between on and...

Page 58: ...Pressing the key again can disable the function To freeze the value The instrument will reset the maximum value and return to step 4 Start measurement If you fail to press within 3 s the instrument w...

Page 59: ...tputs the AC voltage proportional to the measured current Observing the voltage with a recorder such as Hioki s Memory HiCorder etc allows you to check the current waveform visually Use an external po...

Page 60: ...mV 60 00 A 200 0 A 200 0 mV 200 0 A The instrument outputs 600 0 mV as the voltage corresponding to the current range s full scale count of 6000 Only when the 200 0 A range is used the instrument out...

Page 61: ...trument and a device such as a recorder using the L9097 Connection Cable included 2 Connect an external power supply as required p 30 3 Setting the range p 20 If you enable the output function while u...

Page 62: ...ency value cannot be output Even when you press the key the output voltage is not fixed Use an instrument for example recorder with a high input impedance to record the output An instrument with an in...

Page 63: ...tomatically When using the instrument continuously for an extended period of time disable the auto power save function Enabled default setting Idle for about 15 min The instrument will be turned off a...

Page 64: ...ight is lit the display panel can be seen easily even in a dark place Not lit Default setting Otherwise no operation for about 40 s will turns off the backlight automatically Lit in white You can disa...

Page 65: ...easured current exceeds the measurement range overrange The full scale value on the main readout or sub readout and OVER will blink Switch over to an appropriate range When the comparator function det...

Page 66: ...free of charge GENNECT Cross special site https gennect net en cross index The communication distance is about 10 m with a clear line of sight The communicable distance may vary greatly depending on...

Page 67: ...trument from the floor or ground and place it on a desk or table or hold it by hand Using the wireless communications function 1 Connect the Z3210 Wireless Adapter option into the instrument p 29 2 In...

Page 68: ...ument the Instrument Settings screen appears When the instrument is placed near your mobile device its connection is registered automatically on the Instrument Settings screen of GENNECT Cross up to e...

Page 69: ...or detail information please visit our website GENNECT Cross Functions https gennect net en cross function General measurement Waveform graph FFT Photo drawing function Logging recording Event recordi...

Page 70: ...rded events can be checked using the instrument Hold down the key for 1 s or longer Displays the number of events 1 s An event with a duration time of less than 200 ms may not be accurately measured f...

Page 71: ...use HID ON Preparatory to data entry open an Excel file on your mobile device or computer and choose a cell When the instrument s display freezes the measured values will be entered on the cells The u...

Page 72: ...pter option into the instrument See Installation replacement procedure p 29 3 Enable the wireless communications function Turn on the instrument and then hold down simultaneously for 1 s or more 4 Con...

Page 73: ...displaying the following screens in turn the instrument will be turned off automatically The instrument will be turned off automatically 2 Turn on the instrument again Toggle the HID setting If the H...

Page 74: ...be able to recognize the instrument as a connectible device Follow the procedure below to reconnect the instrument to GENNECT Cross 1 Use the Bluetooth setting of your mobile device to delete the ins...

Page 75: ...Saving of setting Auto power save APS function disabled p 55 Enabled Not saved Model number firmware version number all segments display p 22 Filter function enabled disabled at startup p 41 Disabled...

Page 76: ...s How to turn on the instrument Factory shipped setting Saving of setting Simple event recording function p 49 Range Threshold value Confirmation of the HID setting p 64 HID setting enabled disabled p...

Page 77: ...ing Dust resistance and water resistance IP40 with the jaws closed EN 60529 The protection rating for the enclosure of this instrument is IP40 IP40 This indicates the degree of protection provided by...

Page 78: ...tage 5 V DC Maximum rated power 1000 mVA Continuous operating time Approx 48 hours with the Z3210 not installed Approx 30 hours with the Z3210 installed and while wirelessly communicating With the bac...

Page 79: ...71 General Specifications Product warranty period 3 years or 10 000 cycles of jaws opening closing operations whichever is shorter Accessories See p i Options See p 9 HIOKI CM4002A961 02...

Page 80: ...rated terminal to ground voltage CM4002 300 V AC Measurement category IV 600 V AC Measurement category III Anticipated transient overvoltage 6000 V CM4003 300 V AC Measurement category III Anticipated...

Page 81: ...2 ms or more with filter disabled Frequency detection input level 5 or more of f s in each range Inrush trigger level 600 0 mA range Not less than 60 0 mA peak or not exceeding 60 0 mA peak 6 000 A ra...

Page 82: ...e wave input Not exceeding the rated current and the derating curve Measurement accuracy See Accuracy list p 76 Effect of external magnetic field 4 mA or less In an external magnetic field of 400 A m...

Page 83: ...frequency electro magnetic field Add 2 mA to the measurement accuracy In a conducted radio frequency electro magnetic field of 10 V Temperature coefficient Add Measurement accuracy 0 05 C to the measu...

Page 84: ...mA 15 Hz f 45 Hz 2 0 rdg 0 005 mA 3 0 rdg 0 005 mA 45 Hz f 66 Hz 1 0 rdg 0 005 mA 1 0 rdg 0 005 mA 66 Hz f 400 Hz 400 Hz f 2 kHz 2 0 rdg 0 005 mA 60 00 mA over 6000 counts less than 540 counts 0 60 mA...

Page 85: ...0 rdg 0 005 A 3 0 rdg 0 005 A 45 Hz f 66 Hz 1 0 rdg 0 005 A 1 0 rdg 0 005 A 66 Hz f 400 Hz 400 Hz f 2 kHz 2 0 rdg 0 005 A 60 00 A over 6000 counts less than 540 counts 0 60 A to 60 00 A 0 01 A 15 Hz f...

Page 86: ...z 3 0 rdg 0 05 mA 4 0 rdg 0 05 mA 45 Hz f 66 Hz 2 0 rdg 0 05 mA 2 0 rdg 0 05 mA 66 Hz f 400 Hz 400 Hz f 2 kHz 3 0 rdg 0 05 mA 60 00 mA 1 8 mA to 180 0 mA 0 1 mA 15 Hz f 45 Hz 3 0 rdg 0 5 mA 4 0 rdg 0...

Page 87: ...05 A 4 0 rdg 0 05 A 45 Hz f 66 Hz 2 0 rdg 0 05 A 2 0 rdg 0 05 A 66 Hz f 400 Hz 400 Hz f 2 kHz 3 0 rdg 0 05 A 60 00 A 1 8 A to 180 0 A 0 1 A 15 Hz f 45 Hz 5 0 rdg 0 5 A 5 0 rdg 0 5 A 45 Hz f 66 Hz 3 0...

Page 88: ...5 0 rdg 1 0 A 2 AC INRUSH PEAK value Range Accuracy guarantee range Resolution Accuracy guarantee frequency range Measurement accuracy 600 0 mA 60 mA to 1800 mA 1 mA 40 Hz f 1 kHz 6 0 rdg 10 mA 6 000...

Page 89: ...0 A range outputs a voltage of 1 V when the f s of the range is exceeded WAVE 600 mV AC f s other than 200 0 A range 200 mV AC f s 200 0 A range Output accuracy RMS 1 0 rdg 5 mV for the display count...

Page 90: ...eform E9 Add 1 rdg Effects of external magnetic field E11 15 Hz to 400 Hz Class 3 10 A m Add 0 22 mA Class 2 30 A m Add 0 65 mA Effects of load current E12 Add 10 A per load current Effects of common...

Page 91: ...ly on a regular basis Cleaning If the instrument becomes dirty moisten a soft cloth with water or a neutral detergent and gently wipe it clean Keep the facing core surfaces of the sensor heads clean b...

Page 92: ...ion The instrument shuts off immediately after it has been turned on The batteries are exhausted Replace the batteries with new ones p 29 The instrument has sat idle for about 15 minutes with the auto...

Page 93: ...An input impedance of 100 k or more is recommended The frequency of the object under measurement is outside the output accuracy 15 Hz to 2 kHz range The frequency band 15 Hz to 15 kHz shows a band wh...

Page 94: ...enerated on rare occasions There are individual differences in loudness of the sound but it does not affect the measurement The wireless communications cannot be established The Z3210 is not installed...

Page 95: ...ot connect with GENNECT Cross properly Follow the procedure below to reconnect the instrument to GENNECT Cross 1 Use the Bluetooth setting of your mobile device to delete the instrument 2 Disable the...

Page 96: ...Program When an error is displayed on the display panel repair is required Please contact your authorized Hioki distributor or reseller Err 002 ROM error Adjustment data Err 004 Memory error Err 008...

Page 97: ...6 67 Batteries 25 29 Buzzer sound 67 C COMP 48 Comparator function 48 D Display panel 22 Dual readout screen 22 E Error display 88 EVENT 62 Event recording function 62 Excel direct entry function 63 E...

Page 98: ...7 Intermittent earth leakage 38 J Jaws 19 L Leakage current 5 33 Load current 40 Low pass filter 41 M Main readout 22 MAX 46 Maximum value 46 Measurement principle 5 Memory HiCorder 51 MIN 46 Minimum...

Page 99: ...mbinations 67 R Range 20 Recorder 51 RMS 51 S Serial number 19 67 Simple event recording function 49 Specifications 69 Sub readout 22 T Threshold value 48 W WAVE 51 Wireless adapter 25 29 58 Wireless...

Page 100: ...Index 92 HIOKI CM4002A961 02...

Page 101: ...HIOKI CM4002A961 02...

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Page 104: ...www hioki com HIOKI CM4002A961 02...

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