DC Current Sensor
AC Current Sensor
Measuring Instruments
CT Sensor | |
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CT | φ37mm |
Opening/closing of the jaw | Motor operation |
Withstanding voltage | AC 2300V, 1 minute (Between the core of CT and CT outer case) |
Measuring and Display Unit | |
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Measuring function | Leakage current, Harmonic current(Fundamental and third harmonics) |
Measuring method | Dual slope integration mode |
Measuring range | AC 0-300μA/3mA/30mA(3range manual) |
Input frequency | 45-60Hz(Fundamental frequency) |
AC conversion | AC coupled true rms responding |
A/D conversion | Dual slope integration mode |
Display | LCD Max. 3200 count |
Sampling rate | 2 times/sec |
Over indication | "OL" mark on LCD |
Low battery Indication | "Low" mark on LCD |
Data hold function | "DH" mark on LCD |
Auto power off | Approx.10 minutes later after power on |
Power supply | AA size Alkaline battery × 4 |
Limitation of circuit voltage | Less than 500V AC |
Operating Temperature | 0~40℃, less than 80%RH, w/o condensation |
Storage Temperature | -10~60℃, less than 70%RH, w/o condensation |
Dimensions | 160(W)×950(L)×84(D)(When retracted) 160(W)×2680(L)×84(D)(When stretched) |
Weight | Approx. 2.6kgs |
AC Current | |
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Accuracy | (23℃±5℃, less than 80%RH) Range/Resolution/Accuracy(45~65Hz) */Max.Input Current 300μA/100nA(0.1μA)/1.2%±8digit/40A rms 3mA/1μA(0.001mA)/1.2%±8digit/40A rms 30mA/10μA(0.01mA)/1.2%±8digit/40A rms * Accuracy specified: More than 4% harmonics are necessary against fundamental harmonics |
Harmonic Current Measurement (Fundamental and third harmonics) | |
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Measuring method | Automatic turned filter |
Minimum fundamental input | More than 3% of full scale in each range |
Accuracy | (1%±5digit)±(Basic accuracy of ACA) -(Error by neighboring harmonics) |
Accessories | Soft case:1 Instruction manual:1 |