Amprobe AD40B AC40B Mini-Clamp-Meters - Manual (Page 11)

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Input Impedance: 1 MΩ
Overload Protection: 600 V rms
AC Voltage (AC40C)
Range Accuracy (40 – 450 Hz) Resolution
400 V ±(1.5 %rdg +10 dgt)
50-60Hz;(+/-3% rdg + 15dgts) 400Hz 0.1 V
600 V ±(1.5 %rdg +10 dgt)
50-60Hz;(+/-3% rdg + 15dgts) 400Hz 1 V
Input Impedance: 1 MΩ
Measuring method: Dual slope integration. Average Sensing,
rms indication. Overload Protection: 600 V rms
AC Current (AC40C/AD40B)
Range Frequency Accuracy Resolution
40A 50/60 Hz ±(2.5%rdg +10dgt) 0.01A
40A 60 – 400 Hz ±(4.0%rdg +10dgt) 0.01A
400A 50/60 Hz ±(2.5%rdg +10dgt) 0.1A
400A 60 – 400 Hz ±(4.0%rdg +10dgt) 0.1A
Overload Protection: 660 A
Accuracies are specified for conductor centered in the jaw. If
the conductor is not centered, an additional error of max 1.5%
can result.
Measuring method: Dual slope integration. Average Sensing,
rms indication.
Resistance (AC40C)
Range Accuracy Resolution
400 Ω ±(1.0 %rdg + 5 dgt) 0.1 Ω
Max open circuit voltage, AC40C: -1.2 V nominal
Overload Protection, AC40C: 600 Vrms