Measurement ±1200 V
ELM3002-0205 (channel 1, channel 2), ELM3002-0405 (channel 1 only)
Measurement mode | ±1200 V | ||
|---|---|---|---|
Measuring range, nominal | -1200 …+1200 V | ||
Measuring range, end value (FSV) | 1200 V | ||
Measuring range, technically usable | -1288.49…+1288.49 V | ||
PDO resolution (including sign) | 24 bit | 16 bit 2) | |
PDO LSB (Extended Range) | 153.6 µV | 39.32.. mV | |
PDO LSB (Legacy Range) | 143.05.. µV | 36.62.. mV | |
Measurement mode | ±1200 V | ||
Basic accuracy: Measuring deviation at 23°C, with averaging 1) | < ±0.0175 %FSV, < ±175 ppmFSV typ. < ±0.21 V typ. | ||
Extended basic accuracy: Measuring deviation at 0…55°C, with averaging 1) 6) | < ±0.0375, < ±375 ppmFSV typ. < ±450 mV typ. | ||
Offset/Zero point deviation (at 23°C) 1) | EOffset | < 150 ppmFSV | |
Gain/scale/amplification deviation (at 23°C) 1) | EGain | < 75 ppm | |
Non-linearity over the whole measuring range 1) | ELin | < 45 ppmFSV | |
Repeatability 1) | ERep | < 10 ppmFSV | |
Temperature coefficient 1) | TcGain | < 10 ppm/K typ. | |
TcOffset | < 2 ppmFSV/K typ. < 2.4 mV/K typ. | ||
Largest short-term deviation during a specified electrical interference test | < ±0.1 %FSV typ. | ||
Input impedance ±Input (internal resistance) | Differential typ. approx. > 10 MΩ || < 1nF CommonMode typ. against SGND: tbd. | ||
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”
6) Calculated value according to equation in chapter "General information on measuring accuracy/measurement uncertainty" for quick estimation of usability over the specified ambient temperature range in operation (Tambient). In real use, for example at a relatively constant ambient temperature Tambient, a lower (better) achievable uncertainty is attained. A specific calculation according to chapter "General information on measuring accuracy/measurement uncertainty" is recommended, especially if the instrument allows a wider ambient temperature range in operation than 0...55 °C.
ELM3002-0205 (channel 1, channel 2), ELM3002-0405 (channel 1 only) (50 ksps)
Noise (without filtering) | ENoise, PtP | < 45 ppmFSV | < 352 digits | < 54 mV |
ENoise, RMS | < 5 ppmFSV | < 39 digits | < 6 mV | |
Max. SNR | > 106 dB | |||
Noisedensity@1kHz | < 37.95 | |||
Noise (with 50 Hz FIR filter) | ENoise, PtP | < 8 ppmFSV | < 63 digits | < 9.6 mV |
ENoise, RMS | < 1.5 ppmFSV | < 12 digits | < 1.8 mV | |
Max. SNR | > 116.5 dB | |||
Crosstalk (without filter), typ. | DC: > tbd. dB | 50 Hz: > tbd. dB | 1 kHz: > tbd. dB | |
Crosstalk (with 50 Hz FIR filter), typ. | DC: > tbd. dB | 50 Hz: > tbd. dB | 1 kHz: > tbd. dB | |
