The DIN-140 RTD input Modbus modules convert analog input signals to digital data and transmit via RS-485 using the Modbus RTU protocol for communication. The modules provide a wide variety of ranges and perform all signal conditioning, scaling, RTD linearization and conversion to either linearized ASCII data values or Modbus percent of full scale binary values.
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RTD Inputs: =.00385, .00392, 100 at 0 C, .00388, 100 at 25 C.
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Ranges: .00385=-200 C to +850 C.
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.00392=-200 C to +600 C.
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.00388=-100 C to +125 C.
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Resolution: 0.1 degrees C.
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Common mode rejection:100dB at 50/60Hz.
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Input connections: 2, 3, or 4 wire.
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Excitation current: 0.25mA.
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Lead resistance effect: 3 wire - 2.5 C per of imbalance.
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4 wire - negligible.
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Max lead resistance: 50 ohms.
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Input burnout protection to 120Vac.
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Automatic linearization and lead compensation.
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