AC/DC CLAMP METER
CM4376
Innovative Jaw Provides Remarkable Accessibility
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Hioki clamp on meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. The CM4376 is a 1000A AC/DC 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 IP54 dustproof and waterproof enclosure to enable professionals to work quickly in challenging situations including the development, repair, and maintenance of equipment and devices such as electric vehicles. Additionally, the high-voltage DC measurement capability of up to 1700 V (*1) is ideal for the clamp maintenance inspections of electrical and solar power equipment. Finally, built-in Bluetooth wireless technology lets you send measured values to a smartphone or tablet, display waveforms in real time, and create reports right on site. CAT IV 600 V Key Features |
Model No. (Order Code)
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. *For the latest information about countries and regions where wireless operation is currently supported, please visit the Hioki website.       |
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Made for Real-World Situations Uncompromising Design Panel overcrowding is commonly found in many power distribution breakers and termination boxes. The newly designed thin sensor gets into even the most limited spaces. Eliminate the issues of trying to find the right wire or forcing the clamp around thick cables. |
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Damage-resistant jaws! Guaranteed for 30,000 open-close cycles The new and improved design features stronger jaws (the current sensor portion of the instrument) and a dramatic boost in the duration of the warranty from 10,000 to 30,000 open-close cycles to ensure the instrument will provide even more years of reliable use. The CM4375, CM4376, CM4141 and CM4142 deliver the dual functionality of ease of clamping and resistance to damage. |
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Inrush (Rush current): Assess transient currents at motor startup The CM4000 Series can simultaneously measure inrush current in RMS as well as maximum crest values at motor startup and for welding currents. The clamp meters automatically detect the duration of the inrush current (which can range from several dozen milliseconds to several hundred milliseconds) and measure the current during that interval, enabling them to yield more accurate measurements than standard clamp-on meters whose measurement interval is fixed to 100 ms. |
Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)
| DC Current range | 1000 A, (Max. display 999.9 A) , Basic accuracy: ±1.3% rdg. ±0.3 A (at 30.1 A – 999.9 A) |
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| AC Current range | 1000 A (Max. display 999.9 A, 10 Hz to 1 kHz, True RMS), Basic accuracy 45-66 Hz: ±1.3% rdg. ±0.3 A (at 30.1 A – 900.0 A) |
| Crest factor | 1.5 |
| DC+AC Current range | 1000 A (DC, 10 Hz to 1 kHz, True RMS), Basic accuracy DC, 45-66 Hz: ±1.3% rdg. ±1.3 A (at 30.1 A – 900.0 A) |
| DC Power range | 0.0 VA to 1700 kVA (Automatically switched based on voltage range), Basic accuracy: ±2.0% rdg. ±20 dgt. |
| DC Voltage range | 600.0 mV to 1500 V, 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: ±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. ±0.023 V (at 6 V) |
| Resistance range | 600.0 Ω to 600.0 kΩ, 4 ranges, Basic accuracy: ±0.7% rdg. ±5 dgt. |
| Electrostatic capacity range | 1.000 μF to 1000 μF, 4 ranges, Basic accuracy: ±1.9% rdg. ±5 dgt. |
| Frequency range | 9.999 Hz to 999.9 Hz, Basic accuracy: ±0.1% rdg. ±1 dgt. |
| Temperature (K) | -40.0 to 400.0 ˚C, add temperature probe accuracy to basic accuracy of ±0.5% rdg. ±3.0 ˚C |
| Other functions | Automatic AC/ DC detection, DC current and DC voltage polarity detection function, MAX/ MIN/ AVG/ PEAK MAX/ PEAK MIN value display, Low-pass filter function, Display value hold, Auto hold, Backlight, Auto power save, Buzzer sound, Zero-adjustment |
| Dustproof, waterproof | IP54 (Storage or measurement of current of an insulated conductor) |
| Interface | Bluetooth® 4.0LE, Supported devices: iOS, Android™ smartphone/tablet GENNECT Cross (free downloadable app) : display measured values and waveforms, or other |
| Power supply | LR03 Alkaline battery ×2, Continuous use: 20 hr (Backlight OFF, Bluetooth® ON) |
| Core jaw diameter | φ34 mm (1.34 in) |
| Smallest dimension of jaw cross-section | 9.5 mm (0.37 in) |
| Dimensions and mass | 65 mm (2.56 in) W × 242 mm (9.53 in) H × 35 mm (1.38 in) D mm, 330 g (11.6 oz) |
| Accessories | TEST LEAD L9207-10, CARRYING CASE C0203, LR03 Alkaline battery ×2, Instruction Manual ×1, Precautions Concerning Use of Equipment that Emits Radio Waves ×1 |
Countries and regions where wireless operation is currently supported (CM4376)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 |
| Catalog: AC/DC CLAMP METER AC CLAMP METER CM4000 series | Download PDF [6MB] | English |
| Catalog: AC/DC CLAMP METER series | Download PDF [6MB] | English |
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