Measurement ±360 V
ELM3002-0205 (preliminary data)
|
Measurement mode |
±360 V | |
|---|---|---|
|
Measuring range, nominal |
-360 …+360 V | |
|
Measuring range, end value (FSV) |
360 V | |
|
Measuring range, technically usable |
-386.547…+386.547 V | |
|
PDO resolution (including sign) |
24 bit |
16 bit 2) |
|
PDO LSB (Extended Range) |
46.08 µV |
11.79.. mV |
|
PDO LSB (Legacy Range) |
42.91.. µV |
10.98.. mV |
Preliminary specifications:
|
Measurement mode |
±360 V | |
|---|---|---|
|
Basic accuracy: Measuring deviation at 23°C, with averaging 1) |
< ±0.02%FSV, < ± 200 ppmFSV typ. < ± 72 mV typ. | |
|
Extended basic accuracy: Measuring deviation at 0…55°C, with averaging 1) 6) |
< ± tbd., < ± tbd. ppmFSV typ. < ± tbd. µV typ. | |
|
Offset/Zero point deviation (at 23°C) 1) |
EOffset |
< tbd. ppmFSV |
|
Gain/scale/amplification deviation (at 23°C) 1) |
EGain |
< tbd. ppm |
|
Non-linearity over the whole measuring range 1) |
ELin |
< tbd. ppmFSV |
|
Repeatability 1) |
ERep |
< tbd. ppmFSV |
|
Temperature coefficient 1) |
TcGain |
< 50 ppm/K typ. |
|
TcOffset |
< tbd. ppmFSV/K typ. < tbd. µV/K typ. | |
|
Largest short-term deviation during a specified electrical interference test |
< ± tbd. = tbd. ppmFSV typ. | |
|
Input impedance ±Input 1 (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 (50 ksps)
|
Noise (without filtering) |
ENoise, PtP |
< tbd. ppmFSV |
< tbd. digits |
< tbd. µV |
|
ENoise, RMS |
< tbd. ppmFSV |
< tbd. digits |
< tbd. µV | |
|
Max. SNR |
> tbd. dB | |||
|
Noisedensity@1kHz |
< tbd. | |||
|
Noise (with 50 Hz FIR filter) |
ENoise, PtP |
< tbd. ppmFSV |
< tbd. digits |
< tbd. µV |
|
ENoise, RMS |
< tbd. ppmFSV |
< tbd. digits |
< tbd. µV | |
|
Max. SNR |
> tbd. dB | |||
|
Common-mode rejection ratio (without filter), typ. |
DC: > tbd. dB |
50 Hz: > tbd. dB |
1 kHz: > tbd. dB | |
|
Common-mode rejection ratio (with 50 Hz FIR filter), typ. |
DC: > tbd. dB |
50 Hz: > tbd. dB |
1 kHz: > tbd. dB | |
