i
q
i
i
q
i
i
note: the power factor indicates the ratio between the
actual and theoretical power consumption of an electrical
Energiekostenmessgeraet_Content_PM240S_1.indd 51
between the two round cell batteries is removed, the
wattmeter is automatically in this mode.
The LCD 2 now indicates the present mains voltage in
V (volts).
Measure mains frequency
Press the DOWN button 4 until the mains frequency sym-
bol 11 (Hz) appears in the centre of the LCD display 2 .
The LCD 2 now indicates the present mains frequency
in Hz (Hertz).
note: the wattmeter indicates mains frequencies in a
range of 40 to 70 Hz. In Europe a frequency of 50 Hz is
used for the general power supply system.
Show power factor
Press the DOWN button 4 until the Power Factor sym-
bol 16 appears in the centre of the LCD display 2 .
The LCD 2 now indicates the power factor.
Operation
GB
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09.03.09 12:53