Clamp meter | CM4142

Hioki clamp on meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. The CM4142 is a 2000A AC True RMS clamp meter that features a uniquely designed slim jaw that lets you easily get into the narrow gaps between cables in crowded electrical distribution boxes without fear of damaging the cables or the clamp meter. The broad -25℃ to 65℃ operating temperature range and IP50 dustproof and waterproof enclosure to enable professionals to work quickly in crowded electrical distribution panels. The high current measurement capability makes it especially useful for industrial applications. Use the built-in Bluetooth wireless technology to wirelessly send measurement data to mobile devices and create reports. CAT IV 600 V CAT III 1000 V Key Features • Easily get into tight spaces between cables thanks to thin sensor with a minimum cross-section span of 11 mm • Measure up to 2000 A AC • AC A, AC and DC V, DC+AC V, resistance, frequency, temperature, and more • Expanded -25 °C to 65 °C operating temperature range • Send measured values to a smartphone or tablet using Bluetooth® wireless technology (CM4142 only) Data can be downloaded to tablets and smartphones using Hioki’s dedicated apps available from the Google Play or App Store. Search for “HIOKI” and download the “GENNECT Cross” app.

Model No. (Order Code)

CM4142	Built in Bluetooth(R) wireless technology

For the latest information about countries and regions where wireless operation is currently supported, please visit the Hioki website. *Android, Google Play and the Google Play logo are trademarks of Google Inc. *iOS is a registered trademark of Cisco Technology, Inc. and/or its affiliates in the United States and certain other countries. *iPhone, iPad, iPad mini, iPad Pro and iPod touch are trademarks of Apple Inc. *Apple and the Apple logo are trademarks of Apple Inc. App Store is a service mark of Apple Inc. *Microsoft, Windows, Windows Vista, and Excel are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. *Company names and Product names appearing in this catalog are trademarks or registered trademarks of various companies. *The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by HIOKI E.E. CORPORATION is under license. *For the latest information about countries and regions where wireless operation is currently supported, please visit the Hioki website.

Newly Designed Clamp Sensor Gets Between Wires Even with Large Jaw Diameter

Despite the ability to measure up to 2000A AC afforded by the large sensor with φ55mm core diameter, the clamp meter’s innovative jaw design lets you get between the narrow spaces between crowded cables with absolute ease. In addition, electrical panels are sometimes so crowded that you need to push and pull to the clamp to get it around the cable. The CM4142 features a robust construction that delivers strength while letting you weave through complex wiring to get to the right cable, vastly improving work efficiency and speed. Compared with clamp meters of similar class, the meter weighs only 300g, at least 100g lighter than competitors, letting you use the instrument over long work days with signficantly less effort and physical strain.

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)*1 Your instrument can be used to measure voltages in excess of 1000 V DC if and only if both of the following conditions are satisfied: 1. The circuit under measurement is isolated from the commercial power grid. 2. The circuit under measurement is isolated from ground.

AC Current range	60.00 A to 2000 A, 3 ranges (45 Hz to 1 kHz, True RMS), Basic accuracy 45-66 Hz: ±1.5% rdg. ±0.08 A
Crest factor	For the 60.00 A range: 2.5 (greater than 50.00 A and less than or equal to 60.00 A) to 2000 A range: 1.5 (2000 A or less)
DC Voltage range	600.0 mV to 1500 V (*1), 5 ranges, Basic accuracy: ±0.5% rdg. ±0.5 mV (at 600 mV)
AC Voltage range	6.000 V to 1000 V, 4 ranges (15 Hz to 1 kHz, True RMS), Basic accuracy 45-66 Hz: ±0.9% rdg. 0.003 V (at 6 V)
DC+AC Voltage range	6.000 V to 1000 V, 4 ranges, Basic accuracy DC, 45-66 Hz: ±1.0% rdg. ±0.013 V (at 6 V)
Resistance range	600.0 Ω to 600.0 kΩ, 4 ranges, Basic accuracy: ±0.7% rdg. ±0.5 Ω (at 600 Ω)
Electrostatic capacity range	1.000 μF to 1000 μF, 4 ranges, Basic accuracy: ±1.9% rdg. ±0.005 μF (at 1 μF)
Frequency range	Voltage: 9.999 Hz to 999.9 Hz 3 ranges, Current: 99.99 Hz to 999.9 Hz 2 ranges, Basic accuracy: ±0.1% rdg. ±0.01 Hz (at 99.99 Hz)
Temperature (K)	-40.0 to 400.0 ˚C, Basic accuracy: ±0.5% rdg. ±3.0 ˚C + temperature probe accuracy
Other functions	Continuity check, Diode check, Automatic AC/ DC detection (Voltage check only), Max/ Min/ AVG/ Peak waveform MAX/ Peak waveform MIN value display, Low-pass filter function, Display value hold, Backlight, Auto power save, Buzzer sound, Zero-adjustment, and other function
Dustproof, waterproof	IP20 (Current measurement of voltage or hazardous live conductors under completely dry condition) IP50 (When measuring or storing the resistance of a completely dry state or the current of an insulated conductor), However, dustproof and waterproof design equivalent to IP54 only on the handheld part and in a non-measurement state.
Interface	Bluetooth® 4.0LE, Supported devices: iOS, Android™ smartphone/tablet GENNECT Cross (free downloadable app): Display measured values and waveforms, Simple logging function, Waveform monitor function, Hold save function
Power supply	LR03 Alkaline battery ×2, Continuous use: 24 hr (Backlight OFF, Bluetooth® ON)
Core jaw diameter	φ55 mm (2.17 in), Jaw dimension: 82 mm (3.23 in) W × 11 mm (0.43 in) D (D dimension is a range value of 44 mm (1.73 in) from the tip of the jaw)
Jaw cross-section	Minimum dimension 11 mm (0.43 in) (Range value of 44 mm (1.73 in) from the tip of the jaw)
Dimensions and mass	65 mm (2.56 in) W × 247 mm (9.72 in) H × 35 mm (1.38 in) D, 300 g (10.6 oz)
Accessories	TEST LEAD L9207-10 ×1, CARRYING CASE C0203 ×1, LR03 Alkaline battery ×2, Instruction Manual ×1, Usage notes ×1, Caution on using radio waves ×1 (CM4142 only)

Countries and regions where wireless operation is currently supported (CM4142)Last update: June 26, 2019

Wireless certification	Japan, United States, Canada, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom, Singapore, Korea, Chile, and Mexico
Exempt from the wireless regulations	Viet Nam, Hong Kong, Macao, Myanmar, Russian Federation, Colombia, Pakistan, Peru, Georgia, and Kenya

Wireless certification

Japan, United States, Canada, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom, Singapore, Korea, Chile, and Mexico

Exempt from the wireless regulations

Viet Nam, Hong Kong, Macao, Myanmar, Russian Federation, Colombia, Pakistan, Peru, Georgia, and Kenya

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Seminar Videos On Demand

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Seminar Schedule

BIXPO 2019 - Gwangju, Korea

Nov 6, 2019 - Nov 8, 2019

Catalogs

Catalog: GENNECT CROSS SF4071, SF4072	Download PDF [3MB]	English
Catalog: AC/DC CLAMP METER, AC CLAMP METER CM4000 series	Download PDF [6MB]	English

User Guides

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Manuals

If you can not download, log into your myHioki account to access more technical documents and information where available.

AC CLAMP METER CM4142 (Precautions Concerning Use of Equipment) [667KB]	Instruction Manual	Japanese English	Ver.01
AC CLAMP METER CM4141,CM4142 AC/DC CLAMP METER CM4371,CM4372,CM4373,CM4374,CM4375,CM4376 DIGITAL MULTIMETER DT4254 [220KB]	Operating Precautions	Japanese English	Ver.00
AC CLAMP METER CM4141,CM4142 [4MB]	Instruction Manual	English	Ver.01
AC CLAMP METER CM4141,CM4142 [3MB]	Instruction Manual	Korean	Ver.01
AC CLAMP METER CM4141,CM4142 [13MB]	Instruction Manual	English Spanish German French	Ver.01