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EL3204-0162 | 4-channel analog input terminal, 2 x Pt100 (RTD) and 2 x -10...+10 V, 12 bit, single-ended · 0 次阅读

Underrange (index 0x6000:01 / 0x6010:01), Overrange (index 0x6000:02 / 0x6010:02)

Underrange and overrange of the measuring range

  • Overrange, Pt100: T > 850 °C (R > 400 Ω):
    The bits in index 0x6000:02 / 0x6010:02 (overrange bit) and index 0x6000:07 / 0x6010:07 (error bit) are set. The linearization of the characteristic curve is continued with the coefficients of the upper range limit up to the limit stop of the A/D converter (approx. 500 Ω for PT100).
  • Underrange, Pt100: T < - 200°C (R < 18 Ω):
    The bits in index 0x6000:01 / 0x6010:01 (underrange bit) and index 0x6000:07 / 0x6010:07 (error bit) are set. The smallest negative number is displayed (0x8001 corresponds to -32767).

For overrange or underrange the red error LED is switched on.