Transmitter for kW, 3-phase symmetrical load Connection to 3-phase net up to 3 x 500 VAC Monitoring of total power consumption (Ö3 x U x I x cos j) Built-in current transformer, ranges up to 60 AAC Analogue output 0-20 mA / 4-20 mA 24 DC supply Galvanic separation, input - output Made in accordance with the and EMC regulations FPA38 is monitoring the power consumption on 3-phase symmetrical load, primary motors. The wanted metering range is selected by means of DIP-switches, from 0-3,46 kW up to 0-41,6 kW at 3x400 VAC supply, proportional to 0-20/4-20 mA on the metering output. 0-10 V is also possible, see below. The supply voltage, 24 VDC, and the 3 voltage phases are connected to the relevant terminals. The current is monitored by putting the current phase L1 through the built-in current transformer, see connection diagram. Technical data: Supply voltage: Current consumption: Operating temp.: Metering rangeV: Metering range I: Metering range f: Accuracy: Analogue output: Note: Load, outputs: Note: Reaction time: Weight: Dimensions: CE mrk: 24 VDC +/- 5% max. 60 mA -15 to +50°C 3x200 to 3x500 VAC 5, 10, 20, 25, 40, 60 A 10-150 Hz Class 2 selectable 0-20 mA or 4-20 mA For 0-10 V output, select 0-20 mA, and then connect pin 7 and 8 (GND og X1) The metering output is not galvanic separated from 24 VDC supply. Current: max. 500 Ohm Voltage: min. 100 kOhm Output is short-circuit proof approx. 200 msec. 200 g 90 x 35 x 57 mm EN61326A, LVD EN61010 Selection of metering range The wanted ranges are selected with the DIP-switches on the side of the unit. Select output signal, 0-20 mA or 4-20 mA with SW1. SW2, 3 and 4, selection of monitoring current, see table. Note: The power ranges in the table are calculated and calibrated with a supply voltage of 400 VAC. LOAD Metering principle. The FPA 38 is connected to the supply, 3-phase net and load as shown above. It can also be used together with frequency converters, as it operates in the frequency range10-150 Hz. For monitoring of 1-phase loads, connect L2 and L3 to N, and L1 to the phase. Since the unit is calibrated for 3-phase loads, the output signal must be multiplied with 1.5 in order to get the correct value at 1-phase loads.