POWER FACTOR READING ON ADE7953

help me please

Did you phase calibrate?  Verify phase calibration by reading energy at pf1 and pf 0.5  the energy register should read half the value at pf.5. You can use any pf just scale the expected value in the energy register. 

Dave

i am reading 0x10A register for PF . how is the pf reading is converted into actual reading is there any equation or any other way.

pf 1 = 0x7FFF=   32767

pf/lsb = 1/32,767= 3.051850947599719e-5 = 2^-15

pf 0x10A = 266 *  3.051850947599719e-5 = 0.0081179235206153 or pf 0 

Dave

pf 1 = 0x7FFF=   32767

pf/lsb = 1/32,767= 3.051850947599719e-5 = 2^-15

pf 0x10A = 266 *  3.051850947599719e-5 = 0.0081179235206153 or pf 0 

Dave

thanks for me to helping me

as per above calculation

PFreading (1PF in reference meter.and also a resistive load)=0x613B=24891

PF=24891 * 3.0518509475997192297128208258309e-5   = 0.75963621936704

which are the other  registers affect the  PF(0x10A) readings.

Phase compensation register PHCALA and PHCALB and WATT and VA gain

Pf uses Active and apparent power so calibrate phase first. Then active power gain  and apparent power gain. 

Dave

Thanks for your valuble answer thanks dave