AKR 5 B420L

IPN = 2..200A AC Current transducer AKR-B420L A Split Core transducer for the electronic measurement AC waveforms current, with galvanic isolation between the primary (High power) and the secondary circuits (Electronic circuit). Jumper selectable ranges and True RMS 4-20mA current output. Electrical data Primary Nominal Current Features Analogue Output Signal1) IPN (A.t.RMS) Type • VFD and SCR waveforms current RoHS IOUT (mA) measurement Date Code • True RMS responding 2,5 4-20 AKR 5 B420L 10,20,50 4-20 AKR 50 B420L planned JUNE 2006 100,150,200 4-20 AKR 200 B420L planned • Split core box • Current output • Loop powered transducers • Panel mounting Vc Supply voltage (Loop powered) 24 RL Vb Vd Load resistance see power supply diagram Rated voltage (CAT III, PD2) 150 RMS Isolation voltage test, 50 Hz, 1mn 3 f Frequency bandwith V DC • Jumper selectable ranges V AC kV AC Advantages 10-400 Hz • Large aperture • High isolation between primary and Accuracy - Dynamic performance data secondary circuits X Accuracy @ IPN, TA=25°C ±1 tr Response time @ 90% of IPN < 600 • Easy to mount % mS General data Applications • VFD Controlled Loads: VFD output indicates how the motor and TA Ambient operating temperature (0-95% RH) - 20 ..+ 50 °C TS Ambient storage temperature - 20 ..+ 85 °C m Mass Safety EMC 120 IEC 61010-1 EN 61326 g 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 Note: 1) For 4-20mA output model, no saturation output up to 23 mA. Selecting the transducer is the most accurate way to measure power supply or ballast input power. 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 Options on request • DIN mounting way to accurately measure distorted AC waveforms. Select AKR transducers for nonlinear loads or in “noisy” power environments. LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. LEM 060816/5 Page 1/2 www .lem.com Dimensions AKR-B420L (unit : mm, 1mm = 0.0394 inch) 3.2 57.2 13 21.7 61 13 30 21.7 89.7 61 4.5 77.3 Mechanical characteristics • General tolerance ± 1 mm • Primary aperture 21.7 mm sq. • Panel mounting 2 holes ∅ 4.5mm Distance between holes Power Supply diagram 77.3 mm Connections • 2 x UNC8 Cylindric Head Remark • Temperature of the primary conductor should not exceed 60°C. 060816/5 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. LEM Page 2/2 www .lem.com