Measurement ±20 mV
Measurement mode | ±20 mV | |
---|---|---|
Measuring range, nominal | -20…+20 mV | |
Measuring range, end value (FSV) | 20 mV | |
Measuring range, technically usable | -21.474…+21.474 mV | |
PDO resolution (including sign) | 24 bit | 16 bit 2) |
PDO LSB (Extended Range) | 2.56 nV | 655.36 nV |
PDO LSB (Legacy Range) | 2.384.. nV | 610.37.. nV |
Input impedance ±Input 1 (internal resistance) | Differential typ. 4.12 MΩ || 11 nF CommonMode typ. 40 nF against SGND |
2) The analog measurement is always done with 24 bits, in 16-bit mode the eight least significant bits are cut off. For further information see chapter “Commissioning”/ “Process data overview”
Measurement mode |
±20 mV | |
---|---|---|
Basic accuracy: Measuring deviation at 23°C, with averaging |
< ±0.04 %, < ±400 ppmFSV typ. < ±8.0 µV typ. | |
Offset/Zero point deviation (at 23°C) |
EOffset |
< 380 ppmFSV |
Gain/scale/amplification deviation (at 23°C) |
EGain |
< 60 ppm |
Non-linearity over the whole measuring range |
ELin |
< 100 ppmFSV |
Repeatability, over 24 h, with averaging |
ERep |
< 25.0 ppmFSV |
Temperature coefficient |
TcGain |
< 4 ppm/K typ. |
TcOffset |
< 20.0 ppmFSV/K typ. < 0.40 µV/K typ. |
Preliminary data
Measurement mode | ±20 mV | |||
---|---|---|---|---|
Noise (without filtering) | ENoise, PtP | < 540 ppmFSV | < 4219 [digits] | < 10.80 µV |
ENoise, RMS | < 90 ppmFSV | < 703 [digits] | < 1.80 µV | |
Max. SNR | > 80.9 dB | |||
Noisedensity@1kHz | < 0.03 | |||
Noise (with 50 Hz FIR filtering) | ENoise, PtP | < 80 ppmFSV | < 625 [digits] | < 1.60 µV |
ENoise, RMS | < 13.0 ppmFSV | < 102 [digits] | < 0.26 µV | |
Max. SNR | > 97.7 dB | |||
Common-mode rejection ratio (without filtering) | DC: >115 dB typ. | 50 Hz: >105 dB typ. | 1 kHz: >80 dB typ. | |
Common-mode rejection ratio (with 50 Hz FIR filtering) | DC: >115 dB typ. | 50 Hz: >115 dB typ. | 1 kHz: >115 dB typ. | |
Largest short-term deviation during a specified electrical interference test | Value to follow |

Note: In Extended Range Mode the Underrange/Overrange display in the PDO status has the character of an information/warning when the nominal measuring range is exceeded, i.e. no Error is displayed in the PDO status and LED. If the technical measuring range is also exceeded, Error = TRUE is also displayed. The detection limit for Underrange/Overrange Error can be set in the CoE. In Legacy Range mode, an Underrange/Overrange event also leads to an Error in the PDO status. |