EM-M69 CURRENT MEASURE UNIT 50A dc/ac FEATURES: • Wide frequency range • True RMS measurement • Also for thyristor power controller and inverter current measurement • Dip switch settable • 50A RMS (150A peak) • mA and V output • Gain and zero adjustment • Over voltage protected • Reversed polarity protected • Easy to connect • Rail mounting base available EM-M69 uses zero compensated Hall transducer current sensor, that works in a wide frequency range, from dc to 10 kHz. This feature gives true current value also in inverter and thyristor power controller applications. The device output signal is either momentary (direct) or converted to true RMS value. Output signal can be set to mA or V. The device is scaled 0-100% => 0-50A, the scale can be fine tuned with zero and gain adjustments. The scale can also be set by adding wiring through loop, for example two wires double the output 0-100% => 0-25A and so on. The device is connected like a three wire transducer: supply, signal, gnd. The input is protected against faulty connections and voltage peaks. WIRE HOLE 13x10mm TECHNICAL DATA: Operating voltage Current comsumption Measuring range Output signal (mom.) ZERO GAIN 21...32VDC max. 100mA 50A rms (150A peak) 4...20mA (0...50A) ± 5V (± 50A) ± 10V (± 50A) Output signal (rms) 4...20 mA (50A rms) 0...5V (50A rms) 0...10V (50A rms) Load capacity <600 ohm (mA out) >1kohm (V out) Crest factor 2 (50A), 10(10A) Linearity error <0,3% (sine wave) Thermal drift <200 ppm/°C Settling time 0,05ms (mom.) 0,3s (rms) Measuring frequency DC...10kHz Loop resistance 0...600ohm (24V) Operating temp. 0-50°C ELECTROMEN Oy , Turku, Finland WIDTH OF THE HOUSING IS 25 mm measured current Im hall-current measure module momentary Vstage Gain Zero ELECTROMEN Oy Vähäheikkiläntie 56B, 20810 Turku, FINLAND