AEMC 205 - Calculation of the Power Factor; Frequency Measurements

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4.2.18 Calculation of the Power Factor
Measurement Range
(1)
-1.00 to +1.00
Specified Measurement
Range
0 to 50% of the
measurement range
50 to 100% of the
measurement range
Accuracy
± (3% R +3cts)
± (2% R +3cts)
Resolution
0.01
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: Power factor PF sign + (inductive system)
Cos Φ sign +
Quadrant 2: Power factor PF sign - (inductive system)
Cos Φ sign -
Quadrant 3: Power factor PF sign + (inductive system)
Cos Φ sign -
Quadrant 4: Power factor PF sign - (inductive system)
Cos phi sign +
Specific characteristics in MAX/MIN mode (from 10Hz to 1kHz):
• Accuracy: add 1% R to the values in the table above.
• Capture time: approximately 100ms.
4.2.19 Frequency Measurements
4.2.19.1 Voltage
Measurement Range
(1)
5.0 to
599.9Hz
600 to
5999Hz
6.00 to 19.99kHz
Specified Measurement
Range
1 to 100% of the
measurement range
0 to 100% of the
measurement range
Accuracy
± (0.4% R +1ct)
Resolution
0.1Hz
1Hz
10Hz
4.2.19.2 Current
Measurement Range
(1)
5.0 to 599.9Hz
600 to 2999 Hz
Specified Measurement
Range
1 to 100% of the
measurement range
0 to 100% of the
measurement range
Accuracy
± (0.4% R +1ct)
Resolution
0.1Hz
1Hz

Note : The display is "----" if the input signal is too low (V<3V or I<3A) or if
the frequency is less than 5Hz.