The date/time must be set:
On first power up.
Whenever the power supply is interrupted.
When switching between summer and winter time and vice versa.
If the auxiliary power supply is interrupted, the device retains the date and time setting from immediately before the interruption. The device uses the date and time parameter to time-tag the system insulation faults recorded. The date is displayed in the format: dd/mm/yyyy. The time is displayed using the 24-hour clock in the format: hh/mm
When the device is powered up, the clock icon flashes on the system monitoring screens to indicate that the clock needs to be set. To set the date and time, see Parameter modification using the display.