AC CLAMP METER
CM4142
Innovative Current Sensor Design, Easily Get Into Tight Spaces
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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 |
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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 |
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| 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: 48 hr (Backlight OFF, Bluetooth® OFF), 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 |
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| 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
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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
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AC CLAMP METER CM4142 (Precautions Concerning Use of Equipment) [667KB] |
Instruction Manual |
Japanese English |
Ver.01 |
| Operating Precautions |
Japanese English |
Ver.00 | |
| Instruction Manual |
English |
Ver.01 | |
| Instruction Manual |
Korean |
Ver.01 | |
| Instruction Manual |
English Spanish German French |
Ver.01 |
Outline Drawings
If you can not download, log into your myHioki account to access more technical documents and information where available.
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AC CLAMP METER CM4142,CM4142-20,CM4142-21,CM4142-40 [149KB] |
Ver.00 |
Technical Notes
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Declaration of Conformity
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AC CLAMP METER CM4141,CM4142 [49KB] |
Ver.01 |
Drivers, Firmware
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Others
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Options
Test leads
Options for the L9207-10 (L9207-10 is a bundled accessory)
TEST LEAD L9207-10
90 cm (2.95 ft) length
CONTACT PIN SET L4933
Attaches to the tip of the Test Lead L9207-10/DT4911, L9206, 60V DC/ 30V AC
SMALL ALLIGATOR CLIP SET L4934
Attaches to the tip of the L4932, L9207-10/DT4911, L9206, CAT III 300V, CAT II 600V
Options for Test leads
Options for the L4930, Test Pin Set L4932 is required when using the Small Alligator Clip Set L4934
CONNECTION CABLE SET L4930
1.2 m (3.94 ft) length, for base of various attachments
EXTENSION CABLE SET L4931
Expands the length of L4930/4940, 1.5 m (4.92 ft) length
TEST PIN SET L4932
Attaches to the tip of the L4930/4940, CAT IV 600V, CAT III 1000V
SMALL ALLIGATOR CLIP SET L4934
Attaches to the tip of the L4932, L9207-10/DT4911, L9206, CAT III 300V, CAT II 600V
ALLIGATOR CLIP SET L4935
Attaches to the tip of the L4930/4940, CAT IV 600V, CAT III 1000V
BUS BAR CLIP SET L4936
Attaches to the tip of the L4930/4940, CAT III 600V
MAGNETIC ADAPTER SET L4937
Attaches to the tip of the L4930/4940, CAT III 1000V
TEST PIN SET L4938
Attaches to the tip of the L4930/4940, CAT III 600V
BREAKER PIN SET L4939
Attaches to the tip of the L4930/4940, CAT III 600V
MAGNETIC ADAPTER 9804
Attaches to the tip of voltage cord, φ11 mm (0.43 in), compatible M6 pan screws
GRABBER CLIP 9243
Attaches to the tip of the banana plug cable, Red/ Black: 1 each, 196 mm (7.72 in) length, CAT III 1000 V
Temperature measurement
THERMOCOUPLES(K) DT4910
K type, tip exposed, 0.3 mm (0.01 in) diameter, 80 cm (2.62 ft) length, -40 to 260 °C (-40 to 500 °F), tolerance ±2.5 °C
Other options
Bundled accessory
CARRYING CASE C0203
PC peripherals
For the CM4142 only
GENNECT CROSS SF4071, SF4072
• Mobile app for iOS, Android • Improve efficiency of operations that repeat measurement and recording • Analyze correlated data during issues and generate quick reports
Applications
Gallery
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