Current Sensors / Transducers

The Loop Powered 2 Wire Current Transmitter produces a calibrated 4-20 mA. DC output current directly proportional to the average RMS. value of the input alternating current. The controlled current output is unaffected by variations in supply voltage, interconnect and load impedance (within specification limits) to provide a highly accurate means for monitoring alternating current over long distances.

The Current To Voltage Transducer produces a 0-5 Vdc output signal that is directly proportional to the input AC current. The output signal is average sensing, calibrated for RMS. This transducer is used with process control and industrial instrumentation equipment. The DC output signal can be connected directly to a high impedance analog input of a computer or PLC without additional signal conditioning. The unit will measure up to 200% of full scale on a short time basis ( 1 minute or less) and 150% on a continuous basis at its rated accuracy.

The Current Sensing Relay provides an effective and highly stable method for monitoring electrical current. The current carrying wire is routed through the opening extending from the top h ri point adjustment the relay trips s and starts the adjustable timer. After the timer cycles the electro-mechanical relay is energized. A precession voltage reference circuit ensures a highly repeatable trip point. Design of the power- on delay circuitry allows the supply power to be repeatedly cycled on and off, without affecting the stability of the current sensing operation.