Hi
All
Here is a definition for another Hall Effect Current Sensor, range 0 to 30amps.
The ACS715 sensor is about the size of a postage stamp, made by Pololu and costs about $10
The shunt resistance is only 1.2 milliohms
Built in isolation of 2100 volts prevents any ground loops affecting the measurement.
Accuracy is about +/-1.5%
sensor={
id=HALL EFFECT SHUNT (ACS715)
function=AMPS
pins=C37_P4 C37_P6 C37_P7 C37_P8 C37_P9 C37_P10 C37_P11 C37_P12 C37_P20 C37_P21 C37_P22 C37_P23 C37_P31
name=AMPS
min_val=0
max_val=30
resolution=1
round=.1
is_piecewise=0
low_coeff={
c_x4=0
c_x3=0
c_x2=0
c_x1=7.5188
c_x0=-3.7594
}
low_resistance=NONE
low2high_cross=0
high_coeff={
c_x4=0
c_x3=0
c_x2=0
c_x1=0
c_x0=0
}
high_resistance=NONE
high2low_cross=0
shift=5
}
BTW there are other models available with different current ranges but will require a different definition
Doug
All
Here is a definition for another Hall Effect Current Sensor, range 0 to 30amps.
The ACS715 sensor is about the size of a postage stamp, made by Pololu and costs about $10
The shunt resistance is only 1.2 milliohms
Built in isolation of 2100 volts prevents any ground loops affecting the measurement.
Accuracy is about +/-1.5%
sensor={
id=HALL EFFECT SHUNT (ACS715)
function=AMPS
pins=C37_P4 C37_P6 C37_P7 C37_P8 C37_P9 C37_P10 C37_P11 C37_P12 C37_P20 C37_P21 C37_P22 C37_P23 C37_P31
name=AMPS
min_val=0
max_val=30
resolution=1
round=.1
is_piecewise=0
low_coeff={
c_x4=0
c_x3=0
c_x2=0
c_x1=7.5188
c_x0=-3.7594
}
low_resistance=NONE
low2high_cross=0
high_coeff={
c_x4=0
c_x3=0
c_x2=0
c_x1=0
c_x0=0
}
high_resistance=NONE
high2low_cross=0
shift=5
}
BTW there are other models available with different current ranges but will require a different definition
Doug