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AC Characteristics
Measuring Characteristics
Measurement Noise Rejection [7]
AC CMRR
True RMS AC Voltage
Measurement Method:
Crest Factor:
AC Filter Bandwidths:
Input Impedance:
Input Protection:
True RMS AC Current
Measurement Method:
Shunt Resistor:
Burden Voltage:
Input Protection:
Appendix A
(continued)
70 dB
AC-coupled True RMS - measures the ac component of the input with up to
300Vdc of bias on any range (max AC + DC = 300Vrms).
Maximum 5:1 at full scale
3Hz-300kHz (Slow filter)
20Hz-300kHz (Medium filter)
200Hz-300kHz (Fast filter)
1M
2%, in parallel with 100pF
300Vrms all ranges
Direct coupled to the fuse and shunt. AC-coupled True RMS measurement
(measures the ac component only).
0.1
for 1A and 3A ranges
1A range: <1Vrms
3A range: < 2Vrms
Externally accessible 3.15A, 250V, Class H fuse
Class H fuses are fuses with a high interrupt rating which defines a fuse's ability
to safely interrupt and clear short circuits. Replace the fuse with part number
2110-0957, (3.15A, 250V, 5.0 mm diameter, 20.0 mm long) or use Cooper Industries
Inc. fuse part number GDA-3.15.
E1412A Multimeter Specifications
175
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