Hioki CM4000 Series CLAMP METER (True RMS) High Performance AC/DC

Hioki CM4000 Series CLAMP METER (True RMS) High Performance AC/DC

Hioki clamp meters are best-in-class measuring devices incorporating Hioki's expertise in current sensing technology. CM4370 Series are 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.

CM4370 series Function DC Current, AC Current, AC+DC Current, DC Voltage, AC Voltage, AC+DC Voltage, Frequency, Continuity, Resistance, Diode, Capacitance, Temperature, Voltage Detector, DC Power

CAT IV 600V, CAT III 1000V Standard

Automatic AC/DC detection

Simply rotate the rotary switch to the Current or Voltage Measurement function to take measurements after automatically detecting whether the signal is AC or DC. Since this functionality eliminates the need to operate the rotary switch in locations where AC and DC wires are intermingled, it helps boost work efficiency.

INRUSH (Rush Current)

The CM4371 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 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.

Damage-resistant jaws

A new and improved design features stronger jaws 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.

Wide Operating Temperature

The CM4371 has been expanded an operating temperature range to -25˚C to 65˚C and can be used in freezing temperatures or on the hottest summer days.

Global Quality Assurance

Hioki's commitment to producing high quality products to customers around the world. The Clamp meter was produced in Ueda, Shinshu, Japan. The product is designed to be efficient and convenient to use according to customer needs.

Dust & Water Proof Performance

International Protection Code: IP54 (Jaws (current sensor portion): IP50) Measurement functionality is maintained despite exposure to sand or dust as well as water droplets.

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Model	CM4371	CM4372	CM4373	CM4374	CM4375-20	CM4376-20
Basic Characteristics
Current measurement	600 A AC/DC max.		2000 A AC/DC max.		1000 A AC/DC max.
Jaw diameter	φ 33 mm		φ 55 mm		φ 34 mm
Bluetooth® wireless technology	✖ No	✔ Yes	✖ No	✔ Yes	✖ No	✔ Yes
Measurement items
DCA current	20.00 A / 600.0 A		600.0 A / 2000 A		999.9 A
ACA current	20.00 A / 600.0 A		600.0 A / 2000 A		999.9 A
DCA + ACA	20.00 A / 600.0 A		600.0 A / 2000 A		999.9 A
DC voltage	600.0 mV / 6.000 V / 60.00 V / 600.0 V / 1500 V
AC voltage	6.000 V / 60.00 V / 600.0 V / 1000 V
DCV + ACV	6.000 V / 60.00 V / 600.0 V / 1000 V
DC Power	0.0 VA to 1020 kVA		0.000 kVA to 3400 kVA		0.000 kVA to 1700 kVA
Resistance	600.0 Ω / 6.000 kΩ / 60.00 kΩ / 600.0 kΩ
Temperature	-40.0 to 400.0 ˚C
Capacitance	1.000 µF / 10.00 µF / 100.0 µF / 1000 µF
Frequency	9.999 Hz / 99.99 Hz / 999.9 Hz (Voltage frequency/Current frequency)
Continuity check	✔ Yes
Diode check	✔ Yes
Voltage detection	✔ Yes				✖ No
Additional Functions
Automatic AC/ DC detection	Voltage/Current
Inrush (Rush current)	DCA + ACA
Low-pass filter	Analog filter, Cut-off: 100 Hz
Max/Min/AVG/PEAK value	✔ Yes
Simultaneous display of DC current and voltage	✔ Yes
Simultaneous display of DC current peak values and voltage peak values	✔ Yes				✖ No
Auto hold	✔ Yes
General Specifications
Power requirement	Battery AAA x 2
Dimensions/ Weight	65 x 215 x 35 mm/ 340 g		65 x 250 x 35 mm/ 530 g		65 x 242 x 35 mm/ 330 g