HIOKI CM4371 AC/DC Clamp Meter is the 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.
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
• 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
Basic Specifications
DC Current : 20.00 A/600.0 A, Basic accuracy: ±1.3% rdg. ±0.08 A (20 A range)
AC Current : 20.00 A/600.0 A (10 Hz to 1 kHz, True RMS), Basic accuracy: ±1.3% rdg. ±0.08 A (at 20 A)
Crest factor : 20.00 A range: 7.5
600.0 A range: 3 or less
DC+AC Current : 20.00 A/600.0 A (10 Hz to 1 kHz, True RMS), Basic accuracy:±1.3% rdg. ±0.13 A (at 20 A)
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 Voltage : 6.000 V to 1000 V, 4 ranges, Basic accuracy: ±1.0% rdg. ±7 dgt
Resistance : 600.0 O to 600.0 kO, 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.
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
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, Zero-adjustment
Dustproof, waterproof : Grip: 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 supply : LR03 Alkaline battery ×2, Continuous use 45 hr (Backlight OFF)
Core jaw diameter : 69 mm (2.72 in) W× 14 mm (0.55 in) D, f33 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×1