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AC/DC CLAMP METER CM4371

True RMS 600 A AC/DC Clamp Meter for the Toughest Situations

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Description

Hioki clamp 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 (*1) is ideal for the clamp maintenance inspections of electrical and solar power equipment. CAT IV 600 V, CAT III 1000 V

Key Features
• Multiple measurement functions
• Automatic AC/DC function helps boost work efficiency
• Measure DC voltages of up to 1700 V (*1)
• Simultaneously measure inrush current in RMS and crest values
• Expanded -25 °C to 65 °C operating temperature range
• IP54 dustproof and waterproof enclosure *Jaws (current sensor portion): IP50

*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.

Model No. (Order Code)

CM4371
Good Design
CE
TrueRMS
Guarantee 3 Years

 

Germany iF Design Award CM4371 series

Key Features

• Multiple measurement functions • Automatic AC/DC function helps boost work efficiency • Measure DC voltages of up to 1700 V • Simultaneously measure inrush current in RMS and crest values • Expanded -25 °C to 65 °C operating temperature range • IP54 dustproof and waterproof enclosure *Jaws (current sensor portion): IP50

How to Use the Hioki CM4370 Series Clamp Meters
Current Measurement Function:

Learn how to effectively use the current measurement function with this short video.

How to Use the Hioki CM4370 Series Clamp Meters
Auto Hold Function:

The Auto Hold feature is perfect in situations where the display is hard to read because the clamped wires are in hard to reach locations. With Auto Hold, measured results automatically freeze on the display until the next measurement starts, making testing and record taking a snap.

How to Use the Hioki CM4370 Series Clamp Meters
Max/Min/AVG/Peak Function:

Watch this video to learn how to capture the maximum, minimum, average and peak values of a current signal, available when the AUTO AC/DC mode is not in use.

How to Use the Hioki CM4370 Series Clamp Meters
Simultaneous Display of DC Current and DC Voltage:

The CM4370 Series can measure both DC current and DC voltage with a single device at the same time, making it ideal for automotive battery testing and inspection and maintenance of solar panels.

How to Use the Hioki CM4370 Series Clamp Meters
Inrush Measurement Function:

Accurately measure the startup or inrush current of motors and equipment. The CM4370 series is engineered to detect the full startup current period and then identify the RMS waveform as well as the highest waveform peak.

How to Use the Hioki CM4370 Series Clamp Meters
Voltage Measurement Function:

The DMM function of the AC/DC clamp meter is advanced enough to measure up to 1700V AC/DC. Watch this video to learn more.

How to Use the Hioki CM4370 Series Clamp Meters
Continuity Check Function:

The DMM function of the AC/DC clamp meter also provides a continuity check function. Easily detect short-circuits with the clear buzzer and red LED.

How to Use the Hioki CM4370 Series Clamp Meters
AC Voltage Detection Function:

The tip of the current sensor of the CM4370 Series can also detect live voltages, eliminating the need for you to use a separate voltage detector. Energized lines are identified with a loud buzzer and red LED on the clamp meter.

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.

DC Current range20.00 A/600.0 A, Basic accuracy: ±1.3% rdg. ±0.08 A (20 A range)
AC Current range20.00 A/600.0 A (10 Hz to 1 kHz, True RMS), Basic accuracy: ±1.3% rdg. ±0.08 A (at 20 A)
Crest factor20.00 A range: 7.5
600.0 A range: 3 or less
DC+AC Current range20.00 A/600.0 A (10 Hz to 1 kHz, True RMS), Basic accuracy DC, 45-66 Hz: ±1.3% rdg. ±0.13 A (at 20 A)
DC Voltage range600.0 mV to 1500 V (*1), 5 ranges, Basic accuracy: ±0.5% rdg. ±0.5 mV (at 600 mV)
AC Voltage range6.000 V to 1000 V, 4 ranges (15 Hz to 1 kHz, True RMS), Basic accuracy 45 - 66 Hz: ±0.9% rdg. ±0.013 V (at 6 V)
DC+AC Voltage range6.000 V to 1000 V, 4 ranges, Basic accuracy DC, 45 - 66 Hz: ±1.0% rdg. ±0.023 V (at 6 V)
Resistance range600.0 Ω to 600.0 kΩ, 4 ranges, Basic accuracy: ±0.7% rdg. ±0.5 Ω (at 600 Ω)
Capacitance range1.000 μF to 1000 μF, 4 ranges, Basic accuracy: ±1.9% rdg. ±0.005 μF (at 1 μF)
Frequency range9.999 Hz to 999.9 Hz, 3 ranges, Basic accuracy: ±0.1% rdg. ±0.003 Hz (at 9.999 Hz)
Temperature (K)-40.0 to 400.0 ˚C, add temperature probe accuracy to basic accuracy of ±0.5% rdg. ±3.0 ˚C
Voltage detectionHi: 40 V to 600 V AC, Lo: 80 V to 600 V AC, 50/60 Hz
Other functionsAutomatic AC/DC detection, Plus/Minus judgement function of DC A, DC V, Max/Min/Average/PEAK MAX/ PEAK MIN value display, Filter function, Display value hold, Auto hold, Back light, Auto-power save, Buzzer sounds, Zero-adjustment
Dustproof, waterproofGrip: IP54 (when measuring an insulated conductor only), Jaw (the current sensor portion of the instrument)/ barrier: IP50 *Risk of electric shock from the conductor being measured increases when wet.
Power supplyLR03 Alkaline battery ×2, Continuous use 45 hr (Backlight OFF)
Core jaw diameterφ33 mm (1.30 in), Jaw dimension: 69 mm (2.72 in) W× 14 mm (0.55 in) D
Dimensions and mass65 mm (2.56 in) W × 215 mm (8.46 in) H × 35 mm (1.38 in) D mm, 340 g (12.0 oz)
AccessoriesTEST LEAD L9207-10, CARRYING CASE C0203, LR03 Alkaline battery ×2, Instruction Manual×1

Catalogs

CLAMP METER Series

English

Manuals

AC/DC CLAMP METER CM4371,CM4372,CM4373,CM4374 [15MB]

English Spanish German French

AC/DC CLAMP METER CM4371,CM4372,CM4373,CM4374 [4MB]

Simplified Chinese

AC/DC CLAMP METER CM4371,CM4372,CM4373,CM4374 [4MB]

English

AC/DC CLAMP METER CM4371,CM4372,CM4373,CM4374 [15MB]

Korean

Technical Notes

AC/DC Clamp Meter CM4370 Series

Declaration of Conformity

AC/DC CLAMP METER CM4371,CM4372,CM4373,CM4374 [110KB]

Options

Input cable (F)

* Voltage input via banana terminals limited by the voltage specifications of the respective input unit.

 

EXTENSION CABLE SET L4931

Expands the length of the cable with banana plug, 1.5 m (4.92 ft) length

ALLIGATOR CLIP SET L4935

Attaches to the tip of the banana plug cable, CAT IV 600V, CAT III 1000V

BUS BAR CLIP SET L4936

Attaches to the tip of the banana plug cable, CAT III 600V

MAGNETIC ADAPTER SET L4937

Attaches to the tip of the banana plug cable, CAT III 1000V

Input cable options

Test Pin Set L4932 is required when using the Small Alligator Clip Set L4934.

 

TEST PIN SET L4932

Attaches to the tip of the banana plug cable, 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

TEST PIN SET L4938

Attaches to the tip of the banana plug cable, CAT III 600V

BREAKER PIN SET L4939

Attaches to the tip of the banana plug cable, CAT III 600V

Options for Differential Probes

Can also be used with accessories such as L4936/L4937/L4931 as available for other testers.

 

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

Other options

*C0203 is bundled.

 

CARRYING CASE C0203

Temperature measurement

 

THERMOCOUPLES(K) DT4910