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Summary of Contents for Hioki CM4002
- Page 1 CM4002 CM4003 Instruction Manual AC LEAKAGE CLAMP METER Nov. 2020 Edition 1 CM4002A961-00 20-11H HIOKI CM4002A961-00...
- Page 2 HIOKI CM4002A961-00...
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Page 3: Checking Package Contents
Checking Package Contents Main body Accessories CM4002/CM4003 L9097 Connection Cable AC Leakage Clamp Meter (Approx. 1.5 m) (CM4003 only) USB cable (Type-A to Type-C) (CM4003 only) LR6 Alkaline batteries ×2 C0203 Carrying Case Instruction Manual (this manual) ... -
Page 4: Details Of Intended Operations
Outputting the analog signal to a recorder (CM4003 only) p. 3 4 (Checking for intermittent earth leakage) Performing the wireless communications using the GENNECT Cross app p. 4 2 (Checking the measured data on a mobile communications device) HIOKI CM4002A961-00... -
Page 5: Table Of Contents
Operating Precautions ....................7 Part Names.........................10 Operation Keys ......................11 Preparing for Measurement Installing the Batteries and Wireless Adapter ..........13 Installing (replacing) the batteries and Wireless Adapter ........16 Using an External Power Supply (CM4003 only) ..........17 Inspection Prior to Measurement ..............18 HIOKI CM4002A961-00... - Page 6 Simple Event Recording Function (EVENT) ...........33 Output Function (OUTPUT) (CM4003 only) ............34 Output rate (A-to-V conversion ratio) ..............35 Using the output function (RMS/WAVE) ............36 Auto-Power Save Function (APS) ..............38 2.10 Backlight ......................39 Display backlight .....................39 Warning backlight ....................40 2.11 Power-On Option ....................41 HIOKI CM4002A961-00...
- Page 7 General Specifications ..................47 3.2 Input, Output, and Measurement Specifications ..........50 Accuracy list ....................54 Output specifications (CM4003 only) ..............59 Compatibility with IEC/EN 61557-13 ...............60 Maintenance and Service Calibration .......................61 Cleaning ......................61 Disposing of the Instrument ................61 Troubleshooting....................62 Before sending the instrument to be repaired ..........62 Error Displays ....................65 HIOKI CM4002A961-00...
- Page 8 Contents Index Warranty Certificate HIOKI CM4002A961-00...
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Page 9: Introduction
Introduction Introduction Thank you for choosing the Hioki CM4002/CM4003 AC Leakage Clamp Meter. To ensure your ability to get the most out of this instrument over the long term, please read this manual carefully and keep it available for future reference. - Page 10 The current transformer generates the current corresponding to the magnetic field. The detection resistor converts this current into the voltage to calculate the value of the current flowing through the conductor. HIOKI CM4002A961-00...
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Page 11: Notations
Indicates an action that must CAUTION not avoided, could result in not be performed. minor or moderate injury. Indicates potential risks of Indicates an action that must NOTICE damage to the supported be performed. product (or to other property). HIOKI CM4002A961-00... - Page 12 Indicates that using the instrument in an external magnetic field of exceeding 30 A/m is prohibited. Symbols for various standards Indicates the Waste Electrical and Electronic Equipment Directive (WEEE Directive) in EU member states. Indicates that the product conforms to regulations required by the EU Directive. HIOKI CM4002A961-00...
- Page 13 1 2 3 4 5 6 7 8 9 0 Accuracy Hioki expresses accuracy as error limit values specified in terms of percentages of reading and of full scale. Reading Refers to the displayed value of the measuring instrument. The limit values of reading errors are expressed in percent of reading (% of reading, % rdg).
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Page 14: Options
Options The options listed below are available for the instrument. To order an option, please contact your authorized Hioki distributor or reseller. Options are subject to change. Check Hioki’s website for the latest information. L9097 Connection Cable (Approx. 1.5 m) -
Page 15: Operating Precautions
See “Frequency derating characteristics” (p. 5 1). The maximum measurement current varies with the frequency, and the current that can be measured continuously is limited. Operating the instrument at less than this limitation is referred to as derating. HIOKI CM4002A961-00... - Page 16 Keep the jaws closed when the instrument is not in use. „ Leaving the jaws open will cause dust or dirt to settle on the facing core surfaces, resulting in damage to the instrument. Continued on next page → HIOKI CM4002A961-00...
- Page 17 • Displayed values can frequently fluctuate due to induction potential even when no voltage is applied. This, however, is not a malfunction. • When the mark blinks, the batteries are exhausted. Replace the batteries as soon as possible. (p. 1 6) HIOKI CM4002A961-00...
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Page 18: Part Names
Operation keys (p. 1 1) Display panel Battery cover (p. 1 6) Cable connection terminal (CM4003 only) (p. 1 7, p. 3 4) (The illustration shows the CM4003.) HIOKI CM4002A961-00... -
Page 19: Operation Keys
Displays the number of events Toggles the comparator function on or off. (p. 3 2) recorded by the event recording function. (p. 4 5) Toggles the AC INRUSH on or off. – (p. 3 1) Continued on next page → HIOKI CM4002A961-00... - Page 20 Toggles the display backlight on or off. (p. 3 9) WAVE (RMS value) (waveform) Toggles the wireless communications function on or off. (The setting is saved – to the instrument. This operation is enabled only when the Z3210 is installed.) (p. 4 2) HIOKI CM4002A961-00...
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Page 21: Preparing For Measurement
The CM4003 can be used by connecting an external power supply without installing the batteries. (p. 1 7) When the Z3210 Wireless Adapter (option) is installed, the wireless communications function can be used. (p. 4 2) Continued on next page → HIOKI CM4002A961-00... - Page 22 If the battery cover is secured with other screws, the instrument could be damaged, resulting in bodily injury. If you have lost a screw or find that the screw is damaged, please contact your authorized Hioki distributor or reseller. HIOKI CM4002A961-00...
- Page 23 • When the mark blinks, the batteries are exhausted. Replace the batteries as soon as possible. • Before replacing the batteries, turn off the instrument. • Dispose of the batteries in accordance with local regulations. Continued on next page → HIOKI CM4002A961-00...
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Page 24: Installing (Replacing) The Batteries And Wireless Adapter
Remove the old batteries (when replacing the batteries). Install new batteries. When installing the Wireless Adapter, remove the protective cap. Carefully check the orientation, insert the Wireless Adapter all the way inside. Install the battery cover and tighten the screw. HIOKI CM4002A961-00... -
Page 25: Using An External Power Supply (Cm4003 Only)
Connect the other end of the USB cable to the Z1013. Connect the power cord to the Z1013. Z1013 Connect the power cord to an outlet. When you turn on the instrument, the mark will appear. The auto-power save function will be disabled. Power cord HIOKI CM4002A961-00... -
Page 26: Inspection Prior To Measurement
Sub-readout Main readout mark does not blink. When the mark blinks, replace the batteries as soon as possible. The batteries are exhausted. (p. 1 3, p. 1 6) HIOKI CM4002A961-00... -
Page 27: Performing Measurement
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. 1 8). -
Page 28: Measurement Procedure
Clamp the instrument so that the object under measurement is located at the center of the jaws. Single-phase 3-wire circuit 2, 3. Measurement using ground wire: Measurement of zero-phase current: Clamp around only one wire. Clamp around the wires together in a bundle. Class B ground wire Ig: Leakage current Load device HIOKI CM4002A961-00... - Page 29 • Clamp around four wires together in a bundle in the three-phase 4-wire circuit. When the instrument cannot be clamped, you can measure leakage current using the ground wire of the equipment instead. Continued on next page → Read the current value and frequency. HIOKI CM4002A961-00...
- Page 30 • The leakage current measurement at zero phase is affected by the load current. For the degree of influence of the load current, see E12 on p. 6 0. HIOKI CM4002A961-00...
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Page 31: Locating An Insulation Failure
To use this function, the Z3210 (option) and GENNECT Cross (free application software) are needed. 2. Output function (CM4003 only) You can record the output value with a recorder. (p. 3 4) Continued on next page → HIOKI CM4002A961-00... - Page 32 • If the insulation on the load device has deteriorated at location in the figure, you can detect the leakage current through the measurement by clamping around the bundled wires, not at location but location 4. Leakage current Load device Load device Class B ground wire HIOKI CM4002A961-00...
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Page 33: Precautions For Measuring The Load Current
• In accordance with the magnitude of the input current, a sound may be generated from the jaws due to resonance, but it does not affect the measurement. • When the magnitude of the input current is unknown, disable the filter function and start the measurement using the auto-range or 200.0 A range. HIOKI CM4002A961-00... -
Page 34: Filter Function (Filter)
When the filter function is enabled, the frequency band is limited to approx. 180 Hz (−3 dB), which is equivalent to the frequency band of the general earth leakage circuit breaker. To analyze the operation of the earth leakage circuit breaker, it is recommended that you use the filter function. HIOKI CM4002A961-00... -
Page 35: Hold Function (Hold)
(Pressing the key again (Pressing the key again disables the function.) resets the function.) Before auto-hold HOLD HOLD will blink. will appear. will be lit . After auto-hold HOLD will appear. will be lit. Buzzer sound Continued on next page → HIOKI CM4002A961-00... - Page 36 (2) Auto-hold is not performed. (The measured value does not exceed Measured the threshold value.) value Threshold value : Variation width Example: 10.0 A : Hold value Start: Measurement start Time Stop: Measurement end Stop Stop Stop Start Start Start HIOKI CM4002A961-00...
- Page 37 The variation range and threshold value may vary depending on the range. Measurement function Range Variation width Threshold value 6.000 mA 200 counts or less 300 counts 60.00 mA 600.0 mA AC current 100 counts or less 100 counts 6.000 A 60.00 A 200.0 A HIOKI CM4002A961-00...
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Page 38: Max., Min., Average, And Peak Values (Max/Min)
Main readout: Waveform Max., min., average, and peak values Sub-readout: Present measured value The instrument measures the RMS Measured PEAK MIN value. value (RMS value) “AVG” means the average value of all measured values. Display refresh interval HIOKI CM4002A961-00... -
Page 39: Ac Inrush (Inrush Current)
±0.6 A peak (6.000 A range) ±2 A peak (60.00 A range) ±10 A peak (200.0 A range) Inrush current occurrence period An inrush current including DC components cannot be (Several tens to several measured accurately. hundred of milliseconds) HIOKI CM4002A961-00... -
Page 40: Comparator Function (Comp)
Set the threshold value. (Sub-readout) COMP will appear. Increases the value. Threshold value Decreases the value. Confirm the Present threshold measured Holding down the key increases or decreases value. value the value continuously. The range is displayed here during the range setting. HIOKI CM4002A961-00... -
Page 41: Simple Event Recording Function (Event)
Stop recording. , or Returns to step “Start recording”. Switches between on and off. When the instrument sits idle for about 4 s, the operation will return to step “During recording.” Confirm HIOKI CM4002A961-00... -
Page 42: Output Function (Output) (Cm4003 Only)
Use an external power supply to record the measured value for an extended period of time. (p. 1 7) • When using the scaling function of a recorder (such as Hioki’s Memory HiCorder), the voltage value can be converted into the current value on the recorder. -
Page 43: Output Rate (A-To-V Conversion Ratio)
Example: A voltage of 300.0 mV, corresponding to 300.0 mA, is outputted in the 600.0 mA range. Output response RMS (RMS value) Refresh rate: 5 times/s WAVE (waveform) Frequency band: 15 Hz to 15 kHz (within ±3 dB) Continued on next page → HIOKI CM4002A961-00... -
Page 44: Using The Output Function (Rms/Wave)
(as required) Connect an external power supply as required. (p. 1 7) Set the output function. Waveform Output off value output output WAVE Hold down the key for 1 s or longer. Recorder, etc. HIOKI CM4002A961-00... - Page 45 (An instrument with an input impedance of 100 k or more is recommended.) • When the output function is enabled, the auto-power save function (APS) is disabled. Using the filter function can eliminate unnecessary high-frequency components. (p. 2 6) HIOKI CM4002A961-00...
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Page 46: Auto-Power Save Function (Aps)
Disabling the APS function In the power-off state Idle for about icon will appear.) ↓ 15 min. The APS icon → (Default setting) [P.oFF] will hide. ↓ Shutdown Enabling the APS function again Cycle the instrument. The APS icon will appear. HIOKI CM4002A961-00... -
Page 47: Backlight
When the backlight is lit, the display panel can be seen easily even in a dark place. Not lit Lit (in white) (Default setting) Otherwise, no operation for about 40 s will turns off the backlight automatically.* * You can disable the automatic backlight shutoff. (p. 4 1) HIOKI CM4002A961-00... -
Page 48: Warning Backlight
Lit/Blinking (in red) Auto The warning backlight operates only for the present measured value. The warning backlight does not operate for the hold value and recorded values of the MAX, MIN, AVG, PEAK MAX, and PEAK MIN display functions. HIOKI CM4002A961-00... -
Page 49: Power-On Option
(Enabled/disabled at startup, p. 2 6) startup → Buzzer sound (Enabled/disabled) Enabled Saved Automatic deactivation of the display → Enabled Saved backlight (Enabled/disabled, p. 3 9) → – – Serial number display Range → Simple event recording function (p. 3 3) – Threshold HIOKI CM4002A961-00... -
Page 50: Wireless Communications Function
• The Z3210 uses the 2.4 GHz band wireless technology. When there is a device that uses the same frequency band such as a wireless LAN (IEEE802.11.b/g/n) near your mobile communications device, the communication may not be established. HIOKI CM4002A961-00... - Page 51 Turn on the instrument, and then enable the wireless communications function. icon will appear. (Default setting) Hold down both keys for (Wireless communications function 1 s or longer. is enabled.) Hidden: Wireless communications function is disabled. Blinking: Communicating with your mobile device. Continued on next page → HIOKI CM4002A961-00...
- Page 52 • Wait for 5 to 30 s until the connection of the instrument is registered after turning on the instrument. If the connection of the instrument is not registered after 1 minute has elapsed, restart the GENNECT Cross and the instrument. HIOKI CM4002A961-00...
- Page 53 GENNECT Cross. The number of recorded events can be checked using the instrument. Hold down the Displays the number of key for 1 s or events. longer. An event with a duration time of less than 200 ms may not be accurately measured, failing to detect the event. HIOKI CM4002A961-00...
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Page 54: Useful Functionality Of The Z3210
Wireless communications Function Useful functionality of the Z3210 For detail information, please visit the Z3210’s website. https://z3210.gennect.net HIOKI CM4002A961-00... -
Page 55: Specifications
Protected against access to hazardous parts with wire measuring 1.0 mm in diameter. The equipment inside the enclosure 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 the harmful effects of water. HIOKI CM4002A961-00... - Page 56 Standards Safety EN 61010 EMC EN 61326 Applicable standard IEC/EN 61557-13:2011 Class 2, ≤ 30 A/m Power supply CM4002 • LR6 Alkaline batteries ×2 Rated supply voltage: 1.5 V DC × 2 Maximum rated power: 800 mVA CM4003 • LR6 Alkaline batteries ×2 Rated supply voltage: 1.5 V DC ×...
- Page 57 General Specifications Product warranty 3 years or 10,000 cycles of jaws opening/closing operations, whichever is period shorter Accessories See p. i . Options See p. 6 . HIOKI CM4002A961-00...
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Page 58: Input, Output, And Measurement Specifications
See “Accuracy list” (p. 5 4). Maximum input current In accordance with the frequency derating characteristics (p. 5 1) Maximum rated terminal- CM4002 300 V AC (Measurement category IV) to-ground voltage 600 V AC (Measurement category III) Anticipated transient overvoltage 6000 V... - Page 59 Not less than +0.600 A (peak) or not exceeding −0.600 A (peak) 60.00 A range Not less than +2.00 A (peak) or not exceeding −2.00 A (peak) 200.0 A range Not less than +10.0 A (peak) or not exceeding −10.0 A (peak) HIOKI CM4002A961-00...
- Page 60 Accuracy specifications Accuracy Accuracy guarantee period 1 year guarantee Accuracy guarantee period after 1 year conditions adjustment made by Hioki Accuracy guarantee 23°C ±5°C (73° ±9°F) temperature and humidity range 80% RH or less (non-condensing) Accuracy Sine wave input guarantee input...
- Page 61 Effect of conducted Add ±2 mA to the measurement accuracy. radio-frequency (In a conducted radio-frequency electro-magnetic field of 10 V) electro-magnetic field Temperature Add (Measurement accuracy × 0.05)/°C to the measurement accuracy. coefficient (Specified outside a range of 23°C ±5°C) HIOKI CM4002A961-00...
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Page 62: Accuracy List
6.0 mA to 600.0 mA (over 6000 counts / ±1.0% rdg ±0.5 mA (0.1 mA) 66 Hz < f ≤ 400 Hz – less than 540 counts) 400 Hz < f ≤ 2 kHz ±2.0% rdg ±0.5 mA – HIOKI CM4002A961-00... - Page 63 ±1.5% rdg ±0.5 A 6.0 A to 200.0 A (less than ±1.5% rdg ±0.5 A (0.1 A) 66 Hz < f ≤ 400 Hz – 540 counts) 400 Hz < f ≤ 2 kHz ±2.0% rdg ±0.5 A – HIOKI CM4002A961-00...
- Page 64 45 Hz ≤ f ≤ 66 Hz ±2.0% rdg ±5 mA ±18 mA to ±1800 mA 600.0 mA ±2.0% rdg ±5 mA (1 mA) 66 Hz < f ≤ 400 Hz – 400 Hz < f ≤ 2 kHz ±3.0% rdg ±5 mA – HIOKI CM4002A961-00...
- Page 65 45 Hz ≤ f ≤ 66 Hz ±3.0% rdg ±5 A ±18 A to ±300 A 200.0 A ±3.0% rdg ±5 A (1 A) 66 Hz < f ≤ 400 Hz – 400 Hz < f ≤ 2 kHz ±5.0% rdg ±5 A – HIOKI CM4002A961-00...
- Page 66 Measurement accuracy (Auto-range threshold value) (Resolution) 999.9 Hz (over 9999 counts) 15.0 Hz to 999.9 Hz (0.1 Hz) ±0.1% rdg ±0.1 Hz 2000 Hz (less than 900 counts) 900 Hz to 2000 Hz (1 Hz) ±0.1% rdg ±1 Hz HIOKI CM4002A961-00...
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Page 67: Output Specifications (Cm4003 Only)
±3.0% rdg ±10 mV (45 Hz to 400 Hz) ±5.0% rdg ±10 mV (15 Hz to 45 Hz, 400 Hz to 2 kHz) Output response RMS: Refresh rate: 5 times/s WAVE: Frequency band: 15 Hz to 15 kHz (Within ±3 dB) Ω Output impedance or less HIOKI CM4002A961-00... -
Page 68: Compatibility With Iec/En 61557-13
Class3 10 A/m: Below 15% (measurement current: 6 mA to 10 mA) Below 10% (measurement current: 10 mA or more) Class2 30 A/m: Below 20% (measurement current: 6 mA to 10 mA) Below 12.5% (measurement current: 10 mA or more) HIOKI CM4002A961-00... -
Page 69: Maintenance And Service
The calibration interval depends on factors such as operating conditions and environment. Please determine the appropriate calibration interval based on your operating conditions and environment and have Hioki calibrate it accordingly 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. -
Page 70: Troubleshooting
Troubleshooting 4.1 Troubleshooting If damage is suspected, read the "Troubleshooting" section to remedy the problem. If this does not help you, contacting your authorized Hioki distributor or reseller. Before sending the instrument to be repaired Problem Cause Corrective action (Reference) The instrument cannot be The batteries are exhausted. - Page 71 This, however, is not a malfunction. The tip of the jaws is open. Close the jaws. The jaws are damaged. Have the instrument repaired. When a jaw is damaged or cracked, the current cannot be measured accurately. HIOKI CM4002A961-00...
- Page 72 The settings of the GENNECT Cross Check the settings of the are incorrect. GENNECT Cross and your mobile communications device (GPS, etc.). (See the operation guide for the GENNECT Cross.) An error is displayed. See p. 6 5. Have the instrument repaired. HIOKI CM4002A961-00...
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Page 73: Error Displays
ROM error (Adjustment data) When an error is displayed on the display panel, repair is required. Err 004 Memory error Please contact your authorized Hioki Z3210 communication error distributor or reseller. Err 008 (Connection failure, the Z3210 or hardware malfunction) - Page 74 Error Displays HIOKI CM4002A961-00...
- Page 75 AVG ............30 Filter function ..........26 Fluctuation ..........63 Backlight ..........39, 41 Batteries ..........13, 16 Hold ............27 Buzzer sound..........41 Auto-hold ..........27 Manual hold ..........27 HOLD............27 COMP ............32 Comparator function ........32 HIOKI CM4002A961-00...
- Page 76 Maximum value .......... 30 Measurement principle ......... 2 Memory HiCorder ........34 MIN ............. 30 Serial number ........10, 41 Minimum value ........... 30 Simple event recording function ....33 Model Z3210........13, 16, 42 Specifications ..........47 Sub-readout ..........18 HIOKI CM4002A961-00...
- Page 77 Index Threshold value .......... 32 WAVE ............34 Wireless adapter......13, 16, 42 Wireless communications function ..... 42 HIOKI CM4002A961-00...
- Page 78 Index HIOKI CM4002A961-00...
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