These models convert sensor inputs to proportional process current or voltage output signals. AC voltage transmitters accept direct voltage inputs. Current models include an external AC current sensor. This toroidal sensor outputs a safe DC milliamp signal which transmits accurately over long distances. Input span is a function of the primary turns placed on the sensor.

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    250T-AC, 350T-AC, 450T-AC: Transmitter; Loop, DC, or AC-Power

    • Transmitter, Loop, DC, or AC-Power
    • AC voltage or AC current input
    • DC voltage or DC current output
    $440$535
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    250T-P, 350T-P, 450T-P: Transmitter; Loop, DC, or AC-Power

    • Potentiometer/slidewire input
    • DC voltage or DC current output
    $405$460
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    250T-TC, 350T-TC, 450T-TC: Transmitter; Loop, DC, or AC-Power

    • J, K, T, E, R, S, B thermocouple input
    • DC voltage or DC current output
    $420$495
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    260A: Limit Alarm; DC Current Input, Loop-Powered

    • 4 to 20mA DC input
    • Single mechanical relay output
    • 4.5V DC from input loop power
    • Hi/lo fail-safe option trips alarms above or below set-point
    $405
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    270i: Isolator; Input Loop Power

    • 4-20mA DC input
    • 4-20mA DC output
    • 1500V AC peak isolation DC prevents ground loops
    $450$645
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    330i: Isolator; DC-Powered

    • 4 to 20mA DC input
    • 4 to 20mA DC output
    • 10-36V DC power
    • Three-way isolation
    $415
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    340i: Isolator; DC-Powered

    • 4 to 20mA DC input
    • 4 to 20mA DC output
    • 10-36V DC power
    • 1500 AC peak isolation prevents ground loops
    • Calibration is independent of the load to eliminate load compensation adjustments
    $415
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    361A, 461A: Limit Alarm; DC Voltage/Current Input, AC or DC-Powered

    • 0 to 20mA DC, 0 to 100V DC, AC current (with optional sensor) input
    • Single or dual mechanical relays output
    • 10-36V DC or 115/230V AC power
    • 100% adjustable set-point, hi/lo fail-safe operation, jumper-selectable voltage/current input
    $380$385
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    430i: Isolator, AC-Powered

    • 4 to 20mA DC input
    • 4 to 20mA DC output
    • 115V AC or 230V AC power
    • Three-way isolation
    • Zero and span adjustment enable precise calibration
    Series 430i isolators provide 3-way isolation and do not require re-calibration for different loads.
    $415
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    250T-DC, 350T-DC, 450T-DC: Analog Transmitter; AC-, DC- or Loop-Powered, DIN Rail-Mount

    • DC voltage or DC current input
    • DC voltage or DC current output
    • Loop or DC or AC power
    • Excellent accuracy and stability ensure reliable measurements in harsh industrial environments. Input isolated from output/power
    $405$450
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    250T-FQ, 350T-FQ, 450T-FQ: Transmitter; Loop, DC, or AC-Power

    • 0 to 25.6KHz frequency input range
    • DC voltage or DC current output
    • DIN rail G or T mount
    $415$460
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    250T-RB, 350T-RB, 450T-RB Transmitter; Loop, DC, or AC-power

    • Platinum RTD or copper RTD (resistance temperature sensor) input
    • DC voltage/current output
    $415$485
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