FEATURES
â—†Exnt long term stability (4 ~ 20mA, 500 WÂ )
â—†Precision measurement even for unbalance system
◆Precision measurement even for  distorted  wave
◆High impulse & surge protection (5KV)
â—†The case can be mounted on a 35mm rail which complies with DINÂ 46277
DESCRIPTION
Model: S3-WD-1: 1φ2W, Accuracy: ± 0.2% RO； N3-WD-1: 1φ2W, Accuracy: ± 0.5% RO.S3-WD-3 3φ3W, Accuracy: ± 0.2%；   S3-WD-3 3φ3W, Accuracy: ± 0.5%S3-WD-3A 3φ4W, Accuracy: ± 0.2%； S3-WD-3A 3φ4W,Accuracy: ± 0.5%
A wide range of transducers to measure  all  forms  of  active  power, in both balanced and unbalanced,  single  or  3  se  system.  They utilize the well prove "time division multiplication" method of measuring instantaneous power over a wide range of  input  waveforms. The  circuit  diagram  shown  measured  voltage  is modulated  by  circuit of an  oscillator.  Square  wave  pulses  from  a   multi-vibrator circuit, with a mark - space ratio varied by the  measured  voltage  and  amplitued  by the measured current, are fed to an integrator an output amplification circuit. The dc pan>produced is then  directly  proportional  to  power  input - Watts.
ORDER INFORMATION
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