Yokogawa CL220 Clamp-on AC/DC Current Clampmeter


AC/DC current measurements with current ranges up to 300A
24mm in diameter of measurable conductor
Light weight & compact design
Mean value display
Sleep function

pdf_sml    Yokogawa CL and 300 Series Clampmeter

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The Yokogawa CL220 Clamp-on is an Average Responding AC/DC Current Clampmeter that has functions of AC/DC current measurement. It allows you to measure current ranges of 40A/300A fullscale. Able to measure on cables up to 24mm.

Yokogawa CL220 Specifications:

Description AC/DC Mini Clamp-on
Method of detection Mean Value
Display LCD (Digital display: 3999 counts)
DC Current Range 40/300A
DC Current Resolution 0.01A
Response Time Approx. 2 second
Range Switching Auto-range
Data hold On all range
Operating temperature and humidity 0 – 40°C, 90% RH or less (no condensation)
Influence of external magnetic field 1A or less at 400 A/m
Influence of conductor position ±(2% rdg + 5dgt) or less
Safety Standard Conforms EN61010-1, EN61010-2-031, EN61010-2-032
Circuit voltage 300 Vrms or less
Withstanding voltage 3.7 kV AC for one minute
Power Supply LR-44 x 2 (3V)
SR-44 x 2
Battery Life Approx. 11 hours (continuous)
Consumed current Approx. 9 mA
Sleep Function Automatically powered down in about 5 minutes after the last switch operation
Diameter of measurable conductor 24 mm at maximum
Dimensions Approx. 59 (W) x 147 (H) x 25 (D) mm
Weight Approx. 100 g
Accessories Batteries, carrying case (93033)
User’s manual (IM CL235)

Yokogawa CL220 Additional Specification:

At 23°C±5°C, 75%RH or less
Accuracy: ±( % rdg + dgt) = ±(% readout + value of least significant digit)

Parameter Reference Accuracy
DC current 40A 1.0+4
300A(±20~±200A) 1.5+4
300A(±200~±300A) 3.0
AC current 40A 1.0+4 (50/60Hz)
2.5+4 (20~1kHz)
300A(20~200A) 1.5+4 (50/60Hz)
2.5+4 (20~1kHz)
300A(200~300A) 3.5 (50/60Hz)
4.0 (20~1kHz)