FHS40-P Datasheet, PDF (16/18 Pages) LEM – Current transducer

FHS 40-P/SP600
0 - 100A
Performance parameters definition
Sensitivity & Linearity
Sensitivity: the Sensitivity G_B is defined as the slope of the linear regression line for a magnetic field cycle between ± B mT,
where B is the magnetic field for full scale output.
Linearity error: for a field strength b in a cycle whose maximum field strength is B, the linearity error is:
Error (b) = ((V_S (b) - (bG_B)) / BG_B) x 100 %
where V_S (b) is the output voltage, relative to the reference voltage, for the field b.
The maximum value of Error (b) is given in the electrical data.
Temperature coefficient of G: TCG
This is refered to 25 degrees.
Response and reaction times:
The response time t_r, and the reaction time t_ra are shown in figure 13. The primary current rise time is 1 µs.
V,I
100 %
90 %
Ip
Primary
current
10 %
Minisens
outputs
t_r
tra
t
Figure 13: response time t_r and reaction time t_ra
100727/10
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
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