Measurement ±1200 V extended OR
ELM3002-02x5 (channel 1, channel 2), ELM3002-04x5 (channel 1 only)
Measurement mode | ±1200 V With Extended Overrange | ||
|---|---|---|---|
Measuring range, nominal | approx. -5000 …+5000 V | ||
Measuring range, end value (FSV) | 1200 V with Extended Overrange | ||
Measuring range, technically usable | approx. -5000 …+5000 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 With Extended Overrange | ||
Basic accuracy: Measuring deviation at 23°C, with averaging 6) | < ±0.025 % FSV , < ±250 ppm FSV typ. < ±0.3 V typ. | ||
Extended basic accuracy: Measuring deviation at 0…55°C, with averaging 6) | < ±0.0485, < ±485 ppm FSV typ. < ±582 mV typ. | ||
Offset/Zero point deviation (at 23°C) | EOffset | < 230 ppm FSV | |
Gain/scale/amplification deviation (at 23°C) | EGain | < 80 ppm | |
Non-linearity over the whole measuring range | ELin | < 45 ppm FSV | |
Repeatability | ERep | < 20 ppm FSV | |
Temperature coefficient | TcGain | < 10 ppm/K typ. | |
TcOffset | < 8 ppm FSV /K typ. < 9.6 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 the equation for estimating usability at the given ambient temperature point or estimating usability over the specified ambient temperature range in operation (Tambient) as stated in chapter "General information on measuring accuracy/measurement uncertainty". 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.
ELM3002-02x5 (channel 1, channel 2), ELM3002-04x5 (channel 1 only) (50 ksps)
Noise (without filtering) | ENoise, PtP | < 120 ppmFSV | < 938 digits | < 144 mV |
ENoise, RMS | < 16 ppmFSV | < 125 digits | < 19.2 mV | |
Max. SNR | > 95.9 dB | |||
Noisedensity@1kHz | < 121.43 | |||
Noise (with 50 Hz FIR filter) | ENoise, PtP | < 18 ppmFSV | < 141 digits | < 21.6 mV |
ENoise, RMS | < 3.5 ppmFSV | < 27 digits | < 4.2 mV | |
Max. SNR | > 109.1 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 | |
