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 1 | Table 2 | Table 3 | Table 4 | Table 5 |
| XX | XX | X | XXX | X |
| Table 1 | Transducer function |
| 21 | Average current |
| 23 | 3 in 1 Avg. current |
| 31 | True RMS current |
| Table 2 | Input |
| 37 | 0-1 Amp AC |
| 38 | 0-5 Amp AC |
| Table 3 | Input frequency |
| 1 | 50 Hz |
| 2 | 50/60 Hz |
| 4 | 400 Hz |
| 5 | Other |
| Table 4 | Output |
| AFA | 0-1 mADC (21 & 23 only) |
| AFA | 0-1 mADC (TRMS only) |
| AHD | 4-20 mADC (21 & 31 only) |
| Table 5 | Aux. power |
| 1 | 85-135 VAC |
| 2 | 170-264 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 | |
