Measurement ±1200 V extended OR

ELM3002-0205 (channel 1, channel 2), ELM3002-0405 (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 1)

< ±0.025 % FSV , < ±250 ppm FSV typ.

< ±0.3 V typ.

Extended basic accuracy: Measuring deviation at 0…55°C, with averaging 1) 6)

< ±0.0485, < ±485 ppm FSV typ.

< ±582 mV typ.

Offset/Zero point deviation (at 23°C) 1)

EOffset

< 230 ppm FSV

Gain/scale/amplification deviation (at 23°C) 1)

EGain

< 80 ppm

Non-linearity over the whole measuring range 1)

ELin

< 45 ppm FSV

Repeatability 1)

ERep

< 20 ppm FSV

Temperature coefficient 1)

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 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

< 120 ppmFSV

< 938 digits

< 144 mV

ENoise, RMS

< 16 ppmFSV

< 125 digits

< 19.2 mV

Max. SNR

> 95.9 dB

Noisedensity@1kHz

< 121.43 Measurement ±1200 V extended OR 1:

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