Real power about emonlib HOT 7 OPEN

Can you provide a website link to the exact sensor you are using?

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http://www.sunrom.com/p/current-sensor-20a-acs712

from emonlib.

How are you connecting this to the AC supply you are measuring?

from emonlib.

Using supply of ac mains.
Supply-acs current sensor-choke-bulb-supply

Step down transformer parallel to load (choke + Bulb)

from emonlib.

Hii! My objective is to read P, S, FP, Vrms and Irms.
My currente calibration is 54.5 using a 33 burden resistor, SCT-013-000.
I am using a 230/9 Vrms transformer, R1=120K e R2=10K, so the voltage calibration i use is 234.26 but the voltage values is stay less than 3V, why?
Help me please!

CODE:
{
Serial.begin(9600);

emon1.voltage(2, 234.26, 1.7); // Voltage: input pin, calibration, phase_shift
emon1.current(1, 54.5); // Current: input pin, calibration (2000/33).
}

void loop()
{
emon1.calcVI(20,2000); // Calculate all. No.of half wavelengths (crossings), time-out
emon1.serialprint(); // Print out all variables (realpower, apparent power, Vrms, Irms, power factor)

float realPower = emon1.realPower; //extract Real Power into variable
float apparentPower = emon1.apparentPower; //extract Apparent Power into variable
float powerFActor = emon1.powerFactor; //extract Power Factor into Variable
float supplyVoltage = emon1.Vrms; //extract Vrms into Variable
float Irms = emon1.Irms; //extract Irms into Variable
delay(1000);
}

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Hi!
I fix the problem, was in the hardware not in the software.
But when the sensor or the voltage transformer are disconnected it should be all zero (0), how to fix that.
Any help would be helpfull.

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Hello @Aldair170496, What kind of values do you see? can you give more detail?

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