Power supply Rated voltage: 80÷250 VAC +15% -20% Consumption: 1.5 VA max Electrical characteristics Input: 1 for Rogowski coil Input level (RMS ) (1): 100 mV / 1 kA @ 50 Hz Output 1: 1 VRMS (max crest factor 4.5) 3 VRMS (max crest factor 1.5) Output 1 load: › 10 kOhmv Output 2: 0÷20 mA, 4÷20 mA, 0÷10 VDC Full scales values: 0.5 - 2.5 - 10 kA 2.5 - 10 - 50 kA 10 - 50 - 250 kA Accuracy (2): better than ±1% of full scale (not guaranteed for fullscale ≤10 mV) Frequency range (3): 8 Hz to 100 kHz@-3dB Environmental conditions Operating temperature: from -10°C to +50°C Storage temperature: from -25°C to +70°C Relative humidity: 80% max. without condensation Mechanical characteristics Material: plastic enclosure plastic enclosure Protection degree: IP20 IP20 Size / weight: 115x100x23 mm / approx 117 gr Standards compliance Safety: 73/23/EEC and 93/68/EEC directives, EN61010.1 safety standard EMC: 89/366/EEC directive and following modifications 93/31/EEC and 93/68/EEC, EN50081-2, EN50082-2, EN61326/A1
(1) The Rogowski coil output is proportional to the rate of change of current. The calculation formula is: Ampere rms x Hertz x K x 10-6, where K depends on manufacturing. The K value is 2 for 100mV models.
(2) RPS50 is delivered with the specified accuracy. Moreover, the calibration of each scale is adjustable by user to achieve the maximum accuracy in conjunction with the coil.
(3) The low limit is approximate and it is determined by noise effect on very low signals.