YOKOGAWA Daqstation DX2000 User Manual

13-22
IM 04L42B01-01E
Item Specifications
Measuring accuracy in case of scaling
Accuracy during scaling (digits) = measurement accuracy (digits) × multiplier + 2 digits (rounded up)
* Fractions rounded up
where the multiplier = scaling span (digits)/measuring span (digits).
Example For 1-5 V range (A/D integration time is 16.7 ms or more), measurement span of 1.000 to
5.000 V, and scaling span of 0.000 to 2.000
The measuring accuracy for 5 V input is as follows.
Measuring accuracy (1-5 Vrange) = ±(0.05% × 5 V + 3 digits) = ±(0.0025 V [3 digits] + 3
digits) = ±6 digits
Multiplier = {2000 digits (0.000 to 2.000)}/4000 digits (1.000 to 5.000) = 0.5
Thus, accuracy during scaling = ±(6 × 0.5 + 2) digits = 5 digits (rounded up)
Referencejunctioncompensationaccuracy
When measuring temperature greater than or equal to 0 °C and when input terminal temperature is balanced
Type R, S, W, WRe: ±1.0°C
Type K, J, E, T, N, L, and U: ±0.5°C. Type B: Internal reference compensation is fixed to 0°C
Maximum input voltage ±60 VDC (continuous)
Input resistance 200mVrangeorlessandTC:10MΩormore
2Vrangeorhigher:Approx.1MΩ
Input source resistance
Volt, TC 2kΩorless
RTD input 10Ωorlessperwire(Theresistanceofallthreewiresmustbeequal).
Bias current 10 nA or less (except when burnout detection function is enabled)
Maximum common mode noise voltage
250 VACrms (50 Hz/60 Hz)
Maximum noise voltage between channels
250 VACrms (50 Hz/60 Hz)
Interference across channels
120dB(whentheinputsourceresistanceis500Ωandtheinputtootherchannelsis60VDC)
Commonmoderejectionratio
When the A/D integration time is 20 ms
120dB(50Hz±0.1%,500Ωunbalanced,betweentheminusterminalandground)
When the A/D integration time is 16.7 ms
120dB(60Hz±0.1%,500Ωunbalanced,betweentheminusterminalandground)
When the A/D integration time is 1.67 ms
80dBorhigher(50/60Hz±0.1%,500Ωunbalanced,betweentheminusterminalandground)
Normalmoderejectionratio
When the A/D integration time is 20 ms
40 dB or more (50 Hz ± 0.1%)
When the A/D integration time is 16.7 ms
40 dB or more (60 Hz ± 0.1%)
When the A/D integration time is 1.67 ms
Notreject50/60Hz
EffectsofOperatingConditions
Item Specifications
Ambient temperature (applies when the A/D integration time is 16.7 ms or greater, with temperature variation of 10°C)
DC voltage, TC range ±(0.1% of rdg + 0.05% of range) or less
* Excludingtheerrorofreferencejunctioncompensation
RTD range ±(0.1% of rdg + 2 digits) or less
Power supply fluctuation With variation within 90 to 132 V and 180 to 250 VAC (50/60 Hz):
Accuracy specifications are satisfied.
With variation of ±2 Hz from rated power frequency (power supply voltage 100 VAC):
Accuracy specifications are satisfied.
Magnetic field AC (50/60 Hz) and DC 400 A/m fields:±(0.1% of rdg + 10 digits) or less
Input source resistance
DC voltage range Withvariationof+1kΩ:
200 mV range or less: ±10 µV or less
2 V range or higher: ±0.15% of rdg or less
TC range Withvariationof+1kΩ: ±10µVorless
RTD range (Pt100) Withvariationof10Ωperwire(resistanceofallthreewiresmustbeequal):±(0.1%ofrdg+1digits)
or less
Withmaximumdifferenceof40mΩbetweenwires: Approx.0.1°C
Effects of vibration Effects from a sinusoidal vibration along all three axis at a frequency between 10 to 60 Hz and an
acceleration of 0.2 m/s
2
: ±(0.1% of rdg + 1 digit) or less
13.6GeneralSpecifications

YOKOGAWA Daqstation DX2000 Specifications

General

Brand	YOKOGAWA
Model	Daqstation DX2000
Category	Recording Equipment
Language	English