These units convert a 4-20mA process current input into two identical isolated 4-20mA output signals. 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. Power LEDs help identify output open loop conditions. The precision 10-ohm sense resistor enables monitoring of the output signal without disturbing field wiring.

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    651T, 652T: Multi-Channel, Two-Wire Isolators

    • Input / Output Ranges: 4 to 20mA DC input; 4 to 20mA DC output
    • Power Requirement: 12 to 36V DC (loop-powered) Two-wire transmitter
    • Approvals: CE marked. UL, cUL listed Class I, Division 2, Groups A,B,C,D
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    655T, 656T: Transmitter; Single or Dual Channel, Thermocouple/Millivolt Input, Loop-Powered

    • TC (types J, K T, R, S, E, B, N), ±1V DC, selectable range/type input
    • 4 to 20mA DC output
    • 12-50V DC from output loop power
    • DIP-switch configuration, signal linearizer, push-button calibration
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