23/06/2014 www.crouzet.com EI EIH Part number 84871032 Current transformer fitted by passing a cable through the front AC current treshold adjustable from 1 to 20 A AC (30Hz to 400Hz) via button on front Relay output 5 A - 250 V AC - 1 N/O contact Multivoltage power supply: 100 to 230 V AC 50-60Hz 24 V AC / DC 17.5 mm casing clips on symmetrical DIN rail Part numbers Measurement range Supply voltage Type 84 871 032 EIH 0,110A 48 V AC Specifications Supply voltage Un 230 V, 110 V, 48 V, 24 Va 50 / 60Hz (galvanic isolation by transformer) 24 V DC (No galvanic isolation). In this case, the product power supply and measuring circuit power supply must be electrically isolated. Operating range 0.851.15Un Maximum power consumption 3 VA AC 1 W DC Frequency of measured signal 40500Hz Adjustable hysteresis 550%ofthedisplayedthreshold Threshold value 10100%ofthemeasurementrange Display accuracy of the preset threshold 10% Repetition accuracy with constant parameters 0.1% Drift Voltage 0,1% (10% Un) Drift Temperature 0,02% Delays on power up (T2) 0.1s20s 10% Delay on thresold crossing Tt 0.1s3s 10% Delay on pick-up 500 ms Output relay 1 changeover AgNi, 8A AC max Operating temperature range (C) -20+50 Storage temperature range (C) -30+70 Weight (g) 140 Inputs E1-M E2-M E3-M Sensitivity E1-M:0.11A E2-M:0.55A E3-M:110A Input resistance E1-M: 0.1 E2-M: 0.02 E3-M: 0.01 Principles Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected23/06/2014 www.crouzet.com Operating principle AC/DC control without memory When the value of the controlled current, either AC or DC, reaches the threshold displayed on the front face, the output relay changes state at the end of time delay T1. It returns instantly to the initial state when the current drops below the hysteresis threshold, or when the power supply is disconnected. AC/DC control with memory The output relay changes state at the end of time delay T1 and remains latched in this position. To reset the memory function the auxiliary supply must be disconnected. Over-current function (UPPER) The time delay on energisation T2 prevents current peaks due to motor starting. The delay on upward crossing of threshold T1 provides immunity to transients and other interference, thereby preventing spurious triggering of the output relay. Under-current function (UNDER) The time delay on energisation T2 prevents the occurrence of current troughs. The delay on downward crossing of threshold T1 provides immunity to random dips, thereby preventing spurious triggering of the output relay. Note: In underload function, the absolute value of the hysteresis cannot be greater than the measurement range maximum. o Legend N Threshold Hysteresis UPPER function UNDER function Unit powe-up Controlled current Principles Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected