We specialize in Current Sensors, CT Sensors, and Measuring Instruments.

AC/DC Clamp Meter/Leakage Clamp Meter

FCM-400 Flexible AC/DC Current TesterFor diagnosing equipment deterioration on the steel towers and measuring anti-corrosion current on the gas pipes.

Suitable for measuring anticorrosion current on the pipelines, etc.


Bending free flexible clamp sensor
Measuring ranges AC/DC 0.100A~300A(Min. resolution 0.001A)
Big CT window (φ450mm)
Easy accessibility to the hard to clamp object
Clamp sensor/Current detection part
Sensing method Split type CT with array of hole element sensors
Inside diameter of CT φ450mm
Lead length Approx.2m (From measuring unit to CT)
Measuring part
Mesuring function AC (RMS)/DC current
A/D Conversion Dual slope integration method
Measuring ranges AC/DC 3A/30A/300A
Accuracy ±10%rdg±10dgt
Min. resolution 0.001A
Range selector 3 range manual by rotary switch
Sampling rate 2 times/sec
Display LCD max.3200 count with annunciators
Over range indication "OL" mark on LCD
Data hold indication "DH" mark on LCD
Low battery indication "B" mark on LCD
Data hold function Freeze the displayed value by D.H switch
Zero(offset) adjustment By zero(0) SET switch (DC current only)
Auto power off Approx. 10 minutes after power on
General specification
Limitation of circuit voltage Less than AC 600V
Operating temperature 0~45℃, < 85%RH (without condensation)
Storage temperature -10~60℃, < 70%RH (without condensation)
Withstanding voltage AC 2200V/1 minute
Power supply 1.5V(AA size or UM-3) battery×6
Dimension Main unit:159(W)×105(H)×53(D)mm