VOLTCRAFT SEM4500 Operating Instructions Manual page 50

The values for power, current, voltage and power factor are the current
measured values in each case.
The maximum power and maximum current values are the maximum
values for power and current measured since the last reset of the en-
ergy cost meter (maximum vales may be very brief maximum values,
e.g. at the point of switch-on).
The information in the lower display area can be toggled with the
The following indicators are available:
50
Energy in kWh ("TOTAL ENERGY")
Costs ("TOTAL COST")
CO emissions ("TOTAL CO
2
Current time
Operating time ("TOTAL TIME")
")
2
button (7).