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

AC Clamp Meter

M-1800 Digital Clamp Tester80mmφCT, ACA

AC Current, 20A /200A/1800A, 80mmφ CT


80mmφCT window and wide AC current measurements from 0.1A to 1000A.
DCmV analog data output for recorder.
Withstanding Voltage AC 2000V 1 minute max. (Between the core of CT and outer case)
Storage Temperature -10℃ to 60℃, 70%RH max. ( Without condensation )
Accuracy 23℃±5℃ 80%RH or less (50/60Hz)
AC 20A/10mA/±3.0% rdg ± 3 dgt
AC 200A/0.1A/±3.0% rdg ± 3 dgt
AC 1800A/1A/±3.0% rdg ± 3 dgt
Operating Temperature 0℃ to 40℃, 80%RH max. ( Without condensation )
Power supply 1.5V (AM-4, LR03 or AAA)×2
Power consumption 3 mW
Weight Approx. 500g
Jaw opening capability 80mmφ
Limitation of circuit voltage Less than AC 600V
Size 138(W)×225(H)×37(D)mm
Accessories Hard carrying case:1
Instruction manual:1
Display 3.5 digit LCD, max. reading of 1999
Over range indication Blanking of all digits except MSD 1
Data hold indication “D・H“ mark on LCD
Low battery indication "B" mark on LCD
Measuring method Dual slope integration mode
Battery life Approx. 350 hours( Alkaline batteries)
Sampling 2 times/sec
Data output DC100mV (for full scale)