Hioki CM4141 Instruction Manual
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Hioki CM4141 Instruction Manual

Hioki CM4141 Instruction Manual

Ac clamp meter
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CM4141
Instruction Manual
CM4142
AC CLAMP METER
EN
Feb. 2019 Edition 1 
CM4141A961-00 19-02H

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Summary of Contents for Hioki CM4141

  • Page 1 CM4141 Instruction Manual CM4142 AC CLAMP METER Feb. 2019 Edition 1  CM4141A961-00 19-02H...

  • Page 3: Table Of Contents

    Contents Introduction ..................... 1 Notations ......................2 Verifying Package Contents ................4 Options (sold separately)................5 Usage Notes ....................6 Overview Product Overview and Features ............11 Part Names ..................12 Making Measurements Inspection Before Measurement ............13 Current Measurement ................ 14 Manual Hold / Auto Hold ..............
  • Page 4 Contents Backlight / Auto Power Save (APS) ............. 26 Power-on Option Table ............... 27 ® Bluetooth Communications (only for model CM4142) ...... 29 Specifications 3.1 General Specifications ............... 35 3.2 Input specifications/Measurement specifications ....... 37 Accuracy Table ................... 44 Repairs, Inspections, and Cleaning Troubleshooting .................. 59 Error display ..................

  • Page 5: Introduction

    Introduction Thank you for purchasing the Hioki CM4141, CM4142 AC Clamp Meter. To obtain maximum performance from the instrument over the long term, be sure to read this manual carefully and keep it handy for future reference. Read the separate document “Operating Precautions” carefully before using the instrument.

  • Page 6: Notations

    Notations Notations Concerning Safety In this document, the risk seriousness and the hazard levels are classified as follows. Indicates an imminently Indicates information related to hazardous situation that will the operation of the instrument or DANGER IMPORTANT result in death or serious injury to maintenance tasks with which the the operator.
  • Page 7 Notations Screen display The instrument screen displays the alphanumeric characters as follows. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A different display is used in the case below.

  • Page 8: Verifying Package Contents

    DT4911TestLead Verifying Package Contents DT4912TestLead マグネ付ストラップ Verifying Package Contents L4930 接続ケーブル  Model CM4141 or CM4142 Model L9207-10 Test Lead  AC Clamp Meter L9207-10 Model C0203 Carrying Case  L4931renketu L4931 延長ケーブル L4932(+9207-10cap) LR03 Alkaline battery ×2  Instruction Manual* ...

  • Page 9: Options (Sold Separately)

    タ DM4910 熱電対 L4930 接続ケーブル L9207-10 L9207-10 Options (sold separately) L4931renketu DM4910 熱電対 L4931renketu L4931 延長ケーブル マグネ付ストラップ L9207-10 Options (sold separately) L4931 延長ケーブル L4934 小ワニグチ L4931renketu 9243 graber DT4911TestLead L4937 マグネットアダプ L4932(+9207-10cap) ブル L4934 小ワニグチ タ L4931 延長ケーブル L4932(+9207-10cap) DT4911TestLead DM4910 熱電対...

  • Page 10: Usage Notes

    Usage Notes Usage Notes Follow these precautions to ensure safe operation and to obtain the full benefits of the various functions. Read the separate document “Operating Precautions” carefully before using the instrument. Ensure that your use of the product falls within the specifications not only of the instrument itself, but also of any accessories, options, batteries, and other equipment being used.
  • Page 11 Usage Notes DANGER • To prevent an electric shock, confirm that the white portion (insulation layer) inside the cable is not exposed. If a color inside the cable is exposed, do not use the cable. WARNING Do not allow the instrument to get wet, and do not take measurements with wet hands.
  • Page 12 Usage Notes CAUTION Avoid dropping or jarring the instrument, which could damage the jaw, adversely affecting measurement. IMPORTANT Clamp the instrument around only one conductor. The instrument will not be able to make a measurement if you clamp it around two or more wires together, regardless of whether they are part of a single- phase or three-phase circuit.
  • Page 13 Usage Notes Test Lead WARNING To prevent an electric shock, when measuring the voltage of a power line use a test lead that satisfies the following criteria: • Conforms to safety standards IEC61010 or EN61010 • Measurement category III or IV •...
  • Page 14 Usage Notes Model L4937, 9804 Magnetic Adapter Set (optional) DANGER Persons wearing electronic medical devices such as a pacemaker should not use the Magnetic Adapter Set. Such persons should avoid even proximity to the Magnetic Adapter Set, as it may be dangerous. Medical device operation could be compromised, presenting a hazard to human life.

  • Page 15: Overview

    Overview 1.1 Product Overview and Features This instrument is a clamp meter that can Measurement function list perform true RMS measurement of current Temperature simply by clamping it around a circuit. In addition to current, it provides voltage Capacitance, diode measurement, frequency measurement, rush current measurement, resistance measurement, Continuity check, resistance...

  • Page 16: Part Names

    Serial number (The serial number consists of 9 digits. The first two (from the left) indicate the year of manufacture, and the next two indicate the month of manufacture.) Rotary switch HOLD 10 Battery cover 11 Operation keys 12 Measurement terminals (CM4141)

  • Page 17: Making Measurements

    Check if there is any damage to the instrument occurred during storage or shipping and verify that instrument operates normally before using it. If you find any damage, contact your authorized Hioki distributor or reseller. Check item  The battery cover is closed and its screw has There is no damage to the test lead ...

  • Page 18: Current Measurement

    Current Measurement 2.2 Current Measurement Turn the rotary switch. (AC A) (Frequency) (Frequency) Clamp the instrument around a conductor. Frequency detection range of AC current e.g.: 3P4W (3-phase, 4-wire) circuit 3 A or more (60.00 A range) breaker (AC current measurement) 30 A or more (600.0 A range) 200 A or more...

  • Page 19: Manual Hold / Auto Hold

    Current Measurement Manual Hold / Auto Hold Manual hold Auto hold blinks.  Press for 1 sec. Clamp the instrument around a Blinks conductor. Measured value lights up when retains. measured value stabilizes.) Pressing the HOLD key again cancels the measured value hold function. Disconnect Blinks Measured value automatically retains.
  • Page 20 Current Measurement Auto hold conditions Display value updates are stopped when the following two conditions are satisfied: • When the measured value exceeds the threshold value described in the table in the next page. (voltage, current). When the measured value is less than the threshold value described in the table in the next page. (resistance, continuity, diode) •...
  • Page 21 Current Measurement Measurement function Fluctuation range Threshold value AC current 60.00 A range: within 400 counts 60.00 A range: 100 counts 600.0 A range: within 400 counts 600.0 A range: 120 counts 2000 A A range: within 40 counts 2000 A range: 40 counts AUTO V 6.000 V/60.00 V/600.0 V range: 6.000 V/60.00 V/600.0 Vrange:...

  • Page 22: Switching The Range

    Current Measurement Switching the range Manual Manual Manual Auto range 60.00 A range 600.0 A range 2000 A range (default setting)

  • Page 23: Max Value/Min Value/Avg Value/Peak Value

    Current Measurement MAX value/MIN value/AVG value/PEAK value Clamp the instrument around a conductor. See: “Switching the range” (p. 18) In auto-range mode, the instrument will be automatically set to the 2000 A range. Press for 1 sec.  Cancel  Measured value retains. PEAK MAX Waveform The instrument...

  • Page 24: Filter Function

    Current Measurement Filter Function FILTER OFF FILTER ON Measured value including noise Measured value with reduced noise Press for 1 sec. Frequency characteristics when using the Turn off the filter function when performing filter function (100 A input) measurement of power supply frequencies in excess of 100 Hz, for example on an aircraft or ship.

  • Page 25: Rush Current (Ac Inrush)

    Current Measurement Rush current (AC INRUSH) Turn off the motor. Press for 1 sec. Turn the rotary switch.  AC INRUSH ON Turn on the motor. (Rush current The instrument can measure occurrence) Clamp the instrument around a AC rush current. Rush current conductor.

  • Page 26: Other Measurement Functions

    Other Measurement Functions 2.3 Other Measurement Functions Voltage DC+AC成分の波形 e.g.: commercial power supply (AC voltage measurement) Switch the range  DC成分の波形 AUTO (AUTO AC/DC) DC+AC成分の波形 AC成分の波形 (AC V) Black (DC V) DC成分の波形 (AC+DC V) AC成分の波形 DC+AC成分の波形 No overvoltage Do not touch. (Frequency) DC voltage polarity detection function (p.
  • Page 27 Other Measurement Functions Continuity Check Resistance Zero adjustment Zero adjustment Press for 1 sec. Press for 1 sec. Black Black (Red display)
  • Page 28 Other Measurement Functions Capacitance Diode Black Black Buzzer sound Intermittent sound: during forward connection (0.15 V to 1.8 V), backlight off Continuous sound: during forward connection (less than 0.15 V), red backlight on...
  • Page 29 Other Measurement Functions Temperature IMPORTANT Thermocouples (K) experience a phenomenon known as short-range ordering that may prevent accurate measurement in the range of 250°C to 600°C. To change the temperature display unit: p. 28 − Model DT4910 Thermocouples (K) Black : DT4910 is broken.

  • Page 30: Backlight / Auto Power Save (Aps)

    Backlight / Auto Power Save (APS) 2.4 Backlight / Auto Power Save (APS) (Always on) Backlight Auto Power Save (APS) Cancelation method: p. 27 Backlight OFF No operation for 15 min. You can turn the display back on by pressing a key or by turning the rotary switch.

  • Page 31: Power-On Option Table

    Power-on Option Table 2.5 Power-on Option Table Move the rotary switch from the “OFF” position to any of the test mode positions while pressing an operation key. Factory Setting Setting Operating instruction setting retained? Canceling the auto power save (APS) function (OFF) (Set each time) DC voltage polarity detection function...
  • Page 32 Power-on Option Table Factory Setting Setting Operating instruction setting retained? Press for 1 sec. Switching the temperature unit °C To change the temperature unit: To save the setting: Press for 1 sec.

  • Page 33: Bluetooth ® Communications (Only For Model Cm4142)

    ® Bluetooth Communications (only for model CM4142) ® 2.6 Bluetooth Communications (only for model CM4142) The CM4142 supports Bluetooth (Bluetooth low energy). When the Bluetooth function is enabled, you can review measurement data and create measurement reports on mobile devices (iPhone, iPad, iPad mini iPad Pro, iPod touch, and Android devices).
  • Page 34 For more information, see the attached “Precautions Concerning Use of Equipment that Emits Radio Waves” or go to our website. • The CM4142 availability is limited to certain countries. For more information, contact your authorized Hioki distributor or reseller.
  • Page 35 ® Bluetooth Communications (only for model CM4142) Turning on the Bluetooth function Bluetooth function OFF Bluetooth function ON Press for 1 sec. lights up: Bluetooth function ON flashes: Sending/receiving data...
  • Page 36 ® Bluetooth Communications (only for model CM4142) Pairing the app with the CM4142 • When the app is launched for the first time (before being paired with any instrument), the Instrument Settings screen will be displayed. • While the mobile device is displaying the Instrument Settings screen, simply move it close to a CM4142 to automatically pair it with the instrument (the app can be paired with up to 8 instruments).
  • Page 37 ® Bluetooth Communications (only for model CM4142) Making measurements with the Bluetooth function Select the General Measurement, Logging (Recording), or Waveform/FFT function on the Home screen. For more information about each function, see the Help function in the GENNECT Cross. General Measurement Logging (Recording) Waveform/FFT...
  • Page 38 ® Bluetooth Communications (only for model CM4142)

  • Page 39: Specifications

    Specifications 3.1 General Specifications Operating environment Indoors, pollution degree 2, altitude up to 2000 m (6562 ft.) Operating temperature −25°C to 65°C (−13°F to 149°F), 90% RH or less (no condensation) and humidity Storage temperature −30°C to 70°C (−22°F to 158°F), 90% RH or less and humidity (no condensation, when batteries are removed) Dustproof and...
  • Page 40 General Specifications Interface (only for Bluetooth 4.0 LE (p. 29) CM4142) Dimensions Approx. 65W × 247H × 35D mm (2.56″W × 9.72″H × 1.38″D) (excluding protruding parts, operation grip, and jaw) Jaw dimensions Approx. 82W × 11D mm (3.23″W × 0.43″D) (The D figure indicates the depth for the first 44 mm of each jaw from its tip.) Jaw cross-sectional Approx.

  • Page 41: Input Specifications/Measurement Specifications

    Input specifications/Measurement specifications 3.2 Input specifications/Measurement specifications (1) Basic Specifications Measurement range See “3.3 Accuracy Table” (p. 44) Maximum input current As per frequency derating (p. 38) Maximum input voltage to terminal 600 V AC (Measurement category IV) 1000 V AC (Measurement category III) 1000 V AC (up to 1 kHz) 1700 V DC to earth...
  • Page 42 Input specifications/Measurement specifications Display update rate * AC current/AUTO V/AC voltage/ 5 times/sec. DC voltage/AC+DC voltage Current frequency/ 0.5 times to 5 times/sec. (varies depending voltage frequency/capacitance on the measurement value.) Temperature (Thermocouples [K]) 1 time/sec. *1: Does not apply to AC detection in AUTO V mode or to the AC component when DC+AC voltage are mixed. *2: Does not include range change time.
  • Page 43 Input specifications/Measurement specifications AC INRUSH AC INRUSH +2.0 A or more, PEAK 60.00 A range or 2.0 A or less Trigger level PEAK +10 A or more, PEAK 600.0 A range or 10 A or less PEAK +100 A or more, PEAK 2000 A range or 100 A...
  • Page 44 Input specifications/Measurement specifications Frequency detection AUTO V/AC voltage 10% or more of each range f.s. input level CMRR * AC voltage/AC+DC −60 dB or more voltage DC voltage −100 dB or more NMRR * DC voltage −60 dB or more Peak detection time AC voltage 1 ms or more (when filter is off)
  • Page 45 Input specifications/Measurement specifications Open terminal 2.0 V DC or less voltage Ω Ω Continuity on Continuity check ±10 (continuous buzzer sound, red warning backlight threshold lights up) Ω Ω Continuity off Continuity check ±10 threshold Maximum capacity Resistance 10 mF load Maximum inductive Resistance...
  • Page 46 (reference values) Guaranteed accuracy 1 year period after adjustment made by Hioki Guaranteed accuracy for 23°C±5°C (73°F±9°F), 90% RH or less (no condensation) temperature and humidity Continuity check/resistance: after zero adjustment has been performed Use model DT4910 for temperature (Thermocouples [K])
  • Page 47 Input specifications/Measurement specifications Effects of conductor Measurement Measurement Cable diameter Accuracy position * area area figure CV8 mm Area A Within ±3.0% rdg. (Finished outer diameter: Area B Within ±7.0% rdg. 8.6 mm) CV38 mm Area A Within ±2.0% rdg. (Finished outer diameter: Area B Within ±5.0% rdg.

  • Page 48: Accuracy Table

    Accuracy Table 3.3 Accuracy Table (1) AC current Measurement value/MAX/MIN/AVE (rms) Accuracy Accuracy Measurement accuracy Range guarantee range guarantee (Auto-range threshold) Filter OFF Filter ON* (Resolution) frequency range 60.00 A 1.00 A to 60.00 A 45 Hz ≤ f ≤ 66 Hz ±1.5% rdg.±0.08 A ±2.0% rdg.±0.08 A (more than 6000 counts)
  • Page 49 Accuracy Table PEAK MAX/PEAK MIN (Zero to Peak) Accuracy Accuracy guarantee range Range guarantee Measurement accuracy (Resolution) frequency range 60.00 A ±1.0 A to ±150.0 A 45 Hz ≤ f ≤ 66 Hz ±1.5% rdg.±0.8 A (0.1 A) 30 Hz ≤ f < 45 Hz, ±2.0% rdg.±1.0 A 66 Hz <...
  • Page 50 Accuracy Table (3) AC INRUSH (Rush current) AC INRUSH measurement value (rms) Accuracy guarantee range Accuracy guarantee Range Measurement accuracy (Resolution) frequency range 60.00 A 3.00 A to 60.00 A 40 Hz ≤ f ≤ 500 Hz ±5.0% rdg.±0.13 A (0.01 A) 600.0 A 10.0 A to 600.0 A...
  • Page 51 Accuracy Table (4) AUTO V (AC/DC voltage automatic detection) During AC detection: Conforms to accuracy specifications described in “(7) AC+DC voltage” (p. 52). During DC detection: Conforms to accuracy specifications described in “(6) DC voltage” (p. 50). (5) AC voltage Measurement value/MAX/MIN/AVE Range Accuracy...
  • Page 52 Accuracy Table Range Accuracy Measurement accuracy Input Accuracy guarantee (Auto-range guarantee range frequency range * impedance * Filter OFF Filter ON threshold) (Resolution) Ω 60.00 V 3.00 V to 60.00 V 15 Hz ≤ f < 45 Hz ±1.5% rdg. ±2.0% rdg.
  • Page 53 Accuracy Table PEAK MAX/PEAK MIN Accuracy guarantee range Accuracy guarantee Range Measurement accuracy (Resolution) frequency range * 6.000 V 0 V to ±12.00 V (0.01 V) 15 Hz ≤ f < 45 Hz ±1.8% rdg.±0.07 V 45 Hz ≤ f ≤ 66 Hz ±1.5% rdg.±0.07 V 66 Hz <...
  • Page 54 Accuracy Table (6) DC voltage Measurement value/MAX/MIN/AVE Accuracy guarantee range Measurement Range (Auto-range threshold) Input impedance* (Resolution) accuracy Ω 600.0 mV 0.0 mV to ±600.0 mV ±0.5% rdg. 6.7 M ±5% (more than 6000 counts) (0.1 mV) ±0.5 mV Ω 6.000 V (more than 6000 counts/ 0.000 V to ±6.000 V ±0.5% rdg.
  • Page 55 Accuracy Table PEAK MAX/PEAK MIN Range Accuracy guarantee range (Resolution) Measurement accuracy 600.0 mV 0 mV to ±1200 mV (1 mV) ±1.0% rdg.±7 mV 6.000 V 0.00 V to ±12.00 V (0.01 V) ±1.0% rdg.±0.07 V 60.00 V 0.0 V to ±120.0 V (0.1 V) ±1.0% rdg.±0.7 V 600.0 V 0 V to ±1000 V (1 V)
  • Page 56 Accuracy Table (7) AC+DC voltage Measurement value/MAX/MIN/AVE Range Accuracy Measurement accuracy Accuracy guarantee Input (Auto-range guarantee range frequency range * impedance * Filter OFF Filter ON threshold) (Resolution) Ω 6.000 V (more 0.000 V to 0.299 V 10 Hz ≤ f < 45 Hz ±1.5% rdg.
  • Page 57 Accuracy Table Range Accuracy Measurement accuracy Accuracy guarantee Input (Auto-range guarantee range frequency range * impedance * Filter OFF Filter ON threshold) (Resolution) Ω 600.0 V 30.0 V to 600.0 V 10 Hz ≤ f < 45 Hz ±1.5% rdg. ±2.0% rdg.
  • Page 58 Accuracy Table PEAK MAX/PEAK MIN Accuracy guarantee range Accuracy guarantee Range Measurement accuracy (Resolution) frequency range * 6.000 V 0.00 V to ±12.00 V 10 Hz ≤ f < 45 Hz ±1.5% rdg.±0.07 V (0.01 V) DC, 45 Hz ≤ f ≤ 66 Hz ±1.0% rdg.±0.07 V 66 Hz <...
  • Page 59 Accuracy Table (8) Voltage frequency Range Accuracy guarantee range (Resolution) Measurement accuracy (Auto-range threshold) 9.999 Hz 1.000 Hz to 9.999 Hz ±0.1% rdg.±0.003 Hz (more than 9999 counts (0.001 Hz) 99.99 Hz 1.00 Hz to 99.99 Hz ±0.1% rdg.±0.01 Hz (more than 9999 counts/less than (0.01 Hz) 900 counts)
  • Page 60 Accuracy Table (10) Resistance Accuracy guarantee Measurement Measurement Range (Auto-range threshold) range (Resolution) current accuracy Ω Ω Ω 600.0 to 600.0 200 µA±20% ±0.7% rdg. Ω Ω (more than 6000 counts) (0.1 ±0.5 Ω Ω Ω 6.000 k 0.000 k to 6.000 k 100 µA±20% ±0.7% rdg.
  • Page 61 Accuracy Table (12) Capacitance Accuracy guarantee range Measurement Range (Auto-range threshold) Discharge current (Resolution) accuracy 1.000 µF 0.000 µF to 1.100 µF 10 nA±20% ±1.9% rdg. (more than 1100 counts) (0.001 µF) 100 nA±20% ±0.005 µF 1 µA±20% 10.00 µF 0.00 µF to 11.00 µF 100 nA±20% ±1.9% rdg.
  • Page 62 Accuracy Table...

  • Page 63: Repairs, Inspections, And Cleaning

    Repairs, Inspections, and Cleaning 4.1 Troubleshooting Symptom Verification and/or Solution • The instrument is indicating an • Is the measured current value too small for the instrument’s abnormal measured value. measurement range? • Wrap the wire around the jaw one or more times. Each additional wrap of the wire will increase the measured value, so that wrapping it once yields a measured value that is twice the actual value and wrapping it twice yields a measured value that is three times the...
  • Page 64 Troubleshooting Symptom Verification and/or Solution • When readings from the • The instrument cannot accurately measure waveforms that contain a instrument are compared with component that falls outside the frequency characteristics range. those of another clamp-on • Since the instrument performs true RMS measurement, it can current meter, the measured accurately measure distorted waveforms.

  • Page 65: Error Display

    ROM error Err 002 When the error appears in the display, Adjustment data it is necessary to repair the instrument. ADC error Please contact your authorized Hioki Err 005 Hardware malfunction distributor or reseller. Bluetooth error Err 008 Hardware malfunction...

  • Page 66: Insert/Replace Batteries

    If you have lost a screw or find that a screw is damaged, please contact your authorized Hioki distributor or reseller. indicator lights up when the battery charge diminishes. Replace the batteries as soon as possible.
  • Page 67 Insert/Replace Batteries Screw used to adjust measured values ×3 (Do not adjust) Do not adjust any screws other than the screw holding the battery cover in place. Do not adjust the three screws underneath the cover, which are used to adjust measured values, as doing so may prevent accurate measurement.

  • Page 68: Cleaning

    Cleaning 4.4 Cleaning To clean the instrument, wipe it gently with a soft cloth moistened with water or mild detergent.

  • Page 69: Index

    Index AC current ..........17, 44 DC voltage ........17, 27, 50 AC+DC voltage ........17, 52 Diode ..........17, 24, 56 AC INRUSH .......... 21, 46 Disconnection (Breaking) ....9, 13, 60 AC voltage ..........17, 47 DT4910 Thermocouples (K) ....5, 25 Auto hold ..........
  • Page 70 Index Measurement function ....11, 17, 22 MIN value ........... 19 Temperature ......... 25, 57 Mobile device........11, 29 Test lead ..........5, 9, 60 Noise ............20 Voltage..........22, 33, 39 PEAK value ..........19 Zero adjustment........23, 60 Polarity detection function ....

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