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

AC Leakage Clamp Meter

M-2002 2CT Method Mini Clamp Tester 40mmφCT/5mmφCT, ACA

New measuring method for AC leakage current
This is new measuring method for AC leakage current for single phase power system.
It is useful when working at the field where it is difficult to clamp the whole phase conductors(L&N).


Compact size and light weight for convenient field use.
True rms reading with wide range from 1mA to 200A.
Extensional measurements by combination with optional auxiliary CT.

Measuring Example
There are many single phase panel (breaker) boards which is composed of the single pole breakers. In such panel board,L phase conductor is separated from N phase conductor and it is difficult to clamp whole phase conductors(L&N) by CT.
New 2CT method enabled the measurements of leakage current for such panel board as showed below.
Measuring function AC leakage current(By 2CT)
AC leakage current (By main CT)
AC load current
Measuring ranges 0 ~ 200mA/2000mA (Leakage current)
0 ~ 20mA/200A (Load current)
Display LCD max. 9999 count with annunciators
Accuracy (23 ℃ ±5 ℃ , less than 85%RH)
2CT/AC1000mA/0.1mA/±1% rdg ± 10dgt
2CT/AC10A/0.001A/±1% rdg ± 10dgt
Main CT/AC20A/0.01A/±1% rdg ± 10dgt
Main CT/AC200A/0.1A/0 ~ 100A:±1% rdg ± 10dgt,101 ~ 150A : ± 3% rdg ± 10dgt,151 ~ 200A : ± 6% rdg ± 10dgt
AC conversion True rms responding
A/D conversion Dual slope integration method
Jaw opening capability 40mm φ (Main CT)
5mm φ (Auxiliary CT)
Over range indication Over range indication
Data hold indication "DH" mark on LCD
Auto power off Approx. 10 minutes after power on
Low battery indication "B" mark on LCD
Sampling rate 2 time/sec.
Limitation of circuit voltage Less than AC/DC 500V
Withstanding voltage AC 2000V/1 minute between CT and outer case
Operating temperature 0 ~ 40 ℃ , < 85%RH (without condensation)
Storage temperature -10 ~ 60 ℃ < 70%RH (without condensation)
Power supply LR03,AM-4 or AAA size Alkaline battery×3
Size 64(W)×195(H)×24(D)mm(Main CT)
25(W)×114(H)×19(D)mm(Auxiliary CT)
Weight Approx.190g
Accessories Carrying case:1
Instruction manual:1
Auxiliary CT (CTP-05-2) with 1.5m lead cable:1