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Yokogawa 2469/2489 Juxta AC Current Transducers

Juxta AC Current Transducers
2469/2489

The 2469 and 2489 AC Average Current transducers produce an analog DC signal output corresponding to the average value of the AC input. The true RMS versions always require external power and produce an analog DC output corresponding to the true RMS value of the input signal.

 

 

 

 

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Table 1Table 2Table 3Table 4Table 5
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Table 1Transducer function
21Average current
233 in 1 Avg. current
31True RMS current
Table 2Input
370-1 Amp AC
380-5 Amp AC
Table 3Input frequency
150 Hz
250/60 Hz
4400 Hz
5Other
Table 4Output
AFA0-1 mADC (21 & 23 only)
AFA0-1 mADC (TRMS only)
AHD4-20 mADC (21 & 31 only)
Table 5Aux. power
185-135 VAC
2170-264 VAC
Model 2469 2489
Input Current 0-1 Amp AC or 0-5 Amp AC
Input over range capability 200% of rated input continuous
1000% of rated input for 5 seconds
Input Burden <0.2VA per element
Rated outputs 0-1mADC into 10 kΩ max. load; 10VDC output compliance
4-20 mADC into 750Ω max. load; 15VDC output compliance
Accuracy 10-100% of rated input 0-1mADC=±0.5% of full scale
4-20mADC=±0.5% of span 
0-1mADC=±0.2% of full scale
4-20mADC=±0.2% of span
External calibration adjustment Zero: ±1% minimum(AHD only)
Span: ± 2% minimum
Zero: ±5% minimum(AHD only)
Span: ± 10% minimum
Response time <400 milliseconds(0-99% of output)
Output ripple 0.3% of span peak-to-peak max. 0.5% of span peak-to-peak max.
Isolation 2500 VAC input to output, power and case
2000 VAC aux. power to output and case (AHD and TRMS)
500 VAC output to case
Surge Withstand Capability IEEE472/ANSI C37.90.1 - 1989, JIS C1111(5KV, 1.2 x 50 microseconds)
Insulation resistance >10 megohm / 500VDC input/output/power/case
Operating temperature -20°C to +60°C
Operating humidity 0 - 90% relative humidity (non-condensing)
Temperature effect ± 250 PPM / °C of span ± 140 PPM / °C of span
External magnetic field < 0.2% at 400 AT/m
Input frequency range 50 - 500 Hz < 0.2% effect on accuracy
Influence of frequency < 0.2%, 45-65 Hz, fundamental through 9th harmonic (TRMS models only)
Weight TRMS = 900g, 0-1mA = 358g, 4-20mA = 897g, 3 in 1 = 1100g
Shock < 0.2% after 50G, 3 Axis and 6 repetitions
Vibration < 0.2% after 16.7 Hz, 4 mmp-p 1 hour, 3 Axis
UL Recognition File # E60579


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