These units receive 4-20mA process current inputs and provide isolated 4-20mA output signals. Power is derived from the input signal current. Each channel operates independently and is isolated from the others to prevent interaction between channels. For easy troubleshooting, each unit has LEDs and diagnostic test points. Fault LEDs identify output open loop conditions and load compliance problems. The precision 10 ohm sense resistor enables monitoring of the output signal without disturbing field wiring. Approvals CE marked. UL, cUL listed. Class I; Division 2; Groups A, B, C, D

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    671T, 672T, 674T: Multi-Channel, Two-Wire Isolators

    • 4 to 20mA DC input
    • 4 to 20mA DC output
    • Loop-powered
    $175$340
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