AKR-C420L Datasheet | LEM

Features - VFD and SCR waveforms current measurement - True RMS responding - 4-20 m A Current output - Loop powered transducers - Panel mounting - Accurate - Jumper selectable ranges Supply voltage (Loop powered) Load resistance see power supply diagram Rated voltage (CAT III, PD2) 150 RMS Isolation voltage test, 50 Hz, 1mn 3 Frequency bandwith 20-100 Advantages - Large aperture - High isolation between primary and secondary circuits Accuracy - Dynamic performance data X tr Accuracy @ IPN, TA=25°C Response time @ 90% of IPN ±1 < 600 % m S - Easy to mount Applications - VFD Controlled Loads: VFD output indicates how the motor and attached load are operating. - SCR Controlled Loads: Acurate measurement of phase angle fired or burst fired (time proportioned) SCRs. - Switching Power Supplies and Electronic Ballasts: True RMS sensing is the most accurate way to measure power supply or ballast input power. General data TA TS m Ambient operating temperature (0-95% RH) Ambient storage temperature Mass Safety EMC 1) -20 ..+ 50 -20 ..+ 85 90 IEC 61010-1 EN 61326 °C °C g Note: For 4-20m A output model, no saturation output up to 23 m A. Selecting the transducer VFD (Variable Frequency Drive) and SCR (Semi Conductor Rectifier) output waveforms are rough approximations of a sine wave. There are numerous spikes and dips in each cycle. AKR transducers use a mathematical algorithm called “True RMS,” which integrates the actual waveform over time. True RMS is the only way to accurately measure distorted AC waveforms. Select AKR transducers for nonlinear loads or in “noisy” power environments. Options on request - DIN mounting 060816/6 Page 1/2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. .lem. Dimensions (unit : mm, 1mm = 0.0394...