Hioki CM4371 True RMS 600 A AC/DC Clamp Meter for the Toughest Situations
Hioki clamp on meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. Model CM4371 is a 600A True RMS clamp meter that features stronger jaws, broader -25℃ to 65℃ operating temperature range and IP54 dustproof and waterproof enclosure to enable professionals to work quickly in tough 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 is ideal for the clamp maintenance inspections of electrical and solar power equipment.
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Damage-resistant jaws
A revised 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.
Clamp open/ close test
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In this test, the jaws are opened and closed a specified number of times at the rate of one cycle per second. In addition, the test is continued until the jaws break to provide a better understanding of their strength. Tests like this help us improve the instrument’s durability.
-25˚C to + 65˚C
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Thanks to an operating temperature range that has been expanded from the previous design (which could be used from 0°C to 40°C), the CM4371 and CM4373 can be used in freezing temperatures or on the hottest summer days.
Temperature test
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In this test, we verified that the clamp meter can operate for an extended period of time while taking normal measurement in the specified temperature range.
Dustproof and waterproof performance
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International Protection Code: IP54*
*Jaws (current sensor portion): IP50 Measurement functionality is maintained despite exposure to sand or dust as well as water droplets. Enhanced environmental resistance
Caution: The CM4370 Series’ waterproof enclosure is designed to enable the instrument to maintain its measurement functionality even when wet. Getting the instrument wet or measuring energized parts with wet hands increases risk of electric shock.
Dustproof and waterproof tests
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In the dustproof test, the clamp meter’s enclosure is placed under reduced pressure and exposed to dust, and in the waterproof test, the instrument is sprayed with water from multiple directions in order to investigate how readily dust and water can get in.
CAT IV 600 V
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The CM4371 and CM4373 can safely measure service wires with a wire-toground voltage of up to 600 V as well as wires found in distribution panels. The clamp meter series features a safe design that can withstand a transient overvoltage of 8 kV in case of a lightning strike.
DC 1700 V
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The CM4371 and CM4373 can measure DC voltages of up to 1700 V, making them ideal for no-load voltage inspections of rapidly evolving solar power systems.
Giving Shape to Ease of use and Intuitive Operation
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Extensive Range of Measurable Parameters
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Packed with Useful Features
Testing Current has never been more Convenient
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Useful Functions and Exceptional Performance
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