LEM 二线制、真有效值输出交流电流变送器AKR-B420L

随着电网的谐波成分的日益复杂，传统的测量方式不再能够满足测量精度要求。真有效值输出，是一个非常好的解决途径。
Split core transducer for the electronic measurement distorted AC
waveforms current, with galvanic isolation between the primary (High
power) and the secondary circuits (Electronic circuit). Jumper
selectable ranges and True RMS 4-20mA current output.

Electrical data

Vc  Supply voltage (Loop powered)       24             VDC
RL  Load resistance        see power supply diagram
Vd  RMS Isolation voltage test,        50 Hz, 1mn 5000 VAC
f   Frequency bandwith                  10-400          Hz

Accuracy-Dynamic performance data

X Accuracy at IPN@ TA=25�C            � 0.8             %
tr Response time @ 90% of IPN<600              mS


General data
Primary nominal  Primary current  AnalogueOutput     Type
current              range          signal
IPN (A.t.RMS)       IP (A.t)    IOUT (mA)        
2,5                    4,10       4-20          AKR 5 B420L
10,20,50            20,40,100     4-20          AKR 50 B420L
100,150,200        200,300,400    4-20          AKR 200 B420L