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Phoenix Contact: Duplicate 4-20 mA/HART signals

July 30, 2019

Phoenix Contact’s 6-mm MINI Analog Pro family now includes a 4-20 mA/HART signal duplicator. The duplicator makes it possible for two devices (such as a display, PLC input card, or DCS) to receive the same signal simultaneously.

Duplicating the signal is more cost-effective than using two instruments and ensures the signal at both locations is identical. This can be useful in applications such as the custody transfer of oil and gas. For example, the module can duplicate the analog output from a flow meter and send one analog signal to the seller and one to the buyer.

On the input side, the module can be used for isolating four-wire powered devices, or for powering and repeating the signal of two-wire field devices. The two outputs are isolated 1:1, 4-20 mA with the HART communications signal intact.

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