Calculation Of The Power Factor; Frequency Measurements - AEMC 205 User Manual

4.2.18 Calculation of the Power Factor

Measurement Range
Specified Measurement
Range
Accuracy
Resolution
Note (1)
If one of the terms in the calculation of the power factor is displayed
as "OL", or forced to zero, the display of the power factor is an
indeterminate value "----".
Note (8) - Sign of the power factor according to the four-quadrant rule (§4.2.12):
Quadrant 1:
Quadrant 2:
Quadrant 3:
Quadrant 4:
Specific characteristics in MAX/MIN mode (from 10Hz to 1kHz):
•
•

4.2.19 Frequency Measurements

4.2.19.1 Voltage
Measurement Range
Specified Measurement
Range
Accuracy
Resolution
4.2.19.2 Current
Measurement Range
Specified Measurement
Range
Accuracy
Resolution

Note : The display is "----" if the input signal is too low (V<3V or I<3A) or if
the frequency is less than 5Hz.
(1)
0 to 50% of the
measurement range
Power factor PF
Cos Φ
Power factor PF
Cos Φ
Power factor PF
Cos Φ
Power factor PF
Cos phi
Accuracy: add 1% R to the values in the table above.
Capture time: approximately 100ms.
5.0 to
(1)
599.9Hz
1 to 100% of the
measurement range
0.1Hz
(1)
5.0 to 599.9Hz
1 to 100% of the
measurement range
-1.00 to +1.00
± (3% R +3cts)
sign + (inductive system)
sign +
sign - (inductive system)
sign -
sign + (inductive system)
sign -
sign - (inductive system)
sign +
± (0.4% R +1ct)
± (0.4% R +1ct)
0.1Hz
44
50 to 100% of the
measurement range
± (2% R +3cts)
0.01
600 to
6.00 to 19.99kHz
5999Hz
0 to 100% of the
measurement range
1Hz
600 to 2999 Hz
0 to 100% of the
measurement range
1Hz
10Hz