CM4371-90 - HIOKI AC/DC TRMS 20A Clamp-on Multimeter w/ Wireless Adapter

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AC/DC CLAMP METER 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.

• Multiple measurement functions such as current, voltage, resistance, ferequency, and voltage detection
• Simultancously measure inrush current in RMS and crest values
• Damage-resistant jaws (current sensor) provide even more years of reliable use.
• Expanded -25 °C to 65 °C operating temperature range
• IP54 dustproof and waterproof enclosure
*Jaws (current sensor portion): IP50
• Automatic AC/DC function helps boost work efficiency
• Remain alert to hazards with a red backlight and beeping tone
• Measure DC voltages of up to 1700 V

■ Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

DC Current	20.00 A/600.0 A, Basic accuracy: ±1.3% rdg. ±8 dgt.
AC Current	20.00 A/600.0 A, (10 Hz to 1 kHz, True RMS) Basic accuracy: ±1.3% rdg. ±3 dgt.
DC Voltage	600.0 mV to 1500 V, 5 ranges, Basic accuracy: ±0.5% rdg. ±3 dgt.
AC Voltage	6.000 V to 1000 V, 4 ranges, (15 Hz to 1 kHz, True RMS) Basic accuracy: ±0.9% rdg. ±3 dgt.
DC+AC Current	20.00 A/600.0 A, (10 Hz to 1 kHz, True RMS) Basic accuracy:±1.3% rdg. ±13 dgt.
DC+AC Voltage	6.000 V to 1000 V, 4 ranges, Basic accuracy: ±1.0% rdg. ±7 dgt.
Resistance	600.0 Ω to 600.0 kΩ, 4 ranges, Basic accuracy: ±0.7% rdg. ±5 dgt.
Electrostatic capacity	1.000 μF to 1000 μF, 4 ranges, Basic accuracy: ±1.9% rdg. ±5 dgt.
Frequency	9.999 Hz to 999.9 Hz, Basic accuracy: ±0.1% rdg. ±1 dgt.
Continuity check	Continuity threshold [ON]: 25Ω±10 Ω (Buzzor sound, red LED)Continuity threshold [OFF]: 245 Ω±10 Ω, Response time: 0.5 ms or more
Diode	Open terminal voltage: DC2.0 V or less, Measurement current: 200 μA, forward connection: 0.15 V to 1.8 V
Temperature (K)	-40.0 to 400.0 ˚C, add temperature probe accuracy to basic accuracy of ±0.5% rdg. ±3.0 ˚C
Voltage detection	Hi: 40 V to 600 V AC, Lo: 80 V to 600 V AC, 50/60 Hz
DC Power	Display range switching: 0.000 VA to 1020 kVA, Accuracy: ±2.0% rdg. ±20 dgt.
Crest factor	[20.00 A range] 7.5 [600.0 A range] 500.0 A or less: 3; greater than 500.0 A and less than or equal to 600.0 A: 2.5
Other functions	Automatic 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
Dustproof and waterproof	Grip: IP54, Jaw (the current sensor portion of the instrument)/barrier: IP50
Display	Update rate: 5 times/s (excluding electrostatic capacity, frequency, and temperature)
Power supply	LR03 Alkaline battery ×2, Approx. 45 hours (Backlight OFF)
Core jaw diameter	69 mm (2.72 in) W× 14 mm (0.55 in) D, φ33 mm (1.30 in)
Dimensions and mass	65 mm (2.56 in) W × 215 mm (8.46 in) H × 35 mm (1.38 in) D mm, 340 g (12.0 oz)
Accessories	TEST LEAD L9207-10, CARRYING CASE C0203, LR03 Alkaline battery ×2, Instruction Manual

 

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