User Manual

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15.3. ELECTRICAL CHARACTERISTICS
15.3.1. VOLTAGE INPUT CHARACTERISTICS
Range for use: 0 Vrms to 1000 Vrms AC+DC phase-to-neutral.
0 Vrms to 2000 Vrms AC+DC phase-to-phase.
(on condition of compliance with 1000 Vrms with respect to earth in Cat III).
Input impedance: 1195 kW (between phase and neutral).
Admissible overload: 1200 Vrms constant.
2000 Vrms for one second.
15.3.2. CURRENT INPUT CHARACTERISTICS
Operating range: [0 V ; 1 V]
Input impedance: 1 MW.
Admissible overload: 1.7 Vrms constant.
FLEX type current sensors (AmpFLEX™ and MiniFLEX) switch the current input to an integrator assembly (amplified or unampli-
fied Rogowski channel) capable of interpreting the signals from Rogowski sensors. The input impedance is reduced to 12.4 kW
in this case.
15.3.3. BANDWIDTH
Measurement channels: 256 points per period, i.e.:
 At 50 Hz: 6.4 kHz (256 × 50 ÷ 2).
 At 60 Hz: 7.68 kHz (256 × 60 ÷ 2).
The analogue 3-dB bandwidth: 76 kHz.