• 310 Series Thermistor Sensors

    The 310 series thermistor sensors must be wired in series with a 320 series setpoint adjuster. The total resistance is 2200 ohms when the sensor temperature equals the setpoint. The NTC thermistor increases resistance as temperature decreases.

  • 320 Series Setpoint Adjusters

    The 320 series Setpoint Adjuster must be wired in series with a 310 Series Thermistor sensor. The total resistance is 2200 ohms when the sensor temperature equals the setpoint. The 205-S10 Series step controller uses a version of the 320 Series Setpoint Adjuster.

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