Input Calibration
3/07 UDC3500 Universal Digital Controller Product Manual 281
Type of Input Equipment Needed
RTD (Resistance
Thermometer
Device)
• A decade box, with at least ± 0.02 % accuracy, capable of providing
stepped resistance values with a resolution of 0.001 ohm over the
range of resistance needed.
• Three insulated copper leads of equal length for connecting the
decade box to the controller.
Milliampere,
Millivolt, Volts, and
Radiamatic
• A calibrating device with at least ± 0.02 % accuracy for use as a
signal source.
• Two insulated copper leads for connecting the calibrator to the
controller.
• Place current source at zero before switching ON.
• Do not switch current sources OFF/ON while connected to the
instrument.
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