DCU20
User Manual rev. 21
Page 23/29
5.3.5 Operating time
Shows the device operating time. The counter shows the hours of operation (device
powered) since the manufacturing.
5.3.6 Battery installation date
Shows the battery installation date. This value can be edited pressing the OK KEY
or using the wizard (see §5.5). It is used by the system to calculate the battery
operating time.
5.3.7 Battery operating time
Shows the current battery operating time. The value is calculated from the date
entered in the battery installation date field. Once the operating time exceeds the
defined battery lifetime (see 5.2.13) an alarm is generated (see §6).
5.4 Logs
Every event is logged in the device FLASH memory. From the log menu the user
can view their history. Use the UP/DOWN KEYS to navigate between logs.
For each event the following information is given:
Timestamp
: The time and date at which the event happened.
Event name
: The name identifying the event, see §6 for the complete list of events
Value
: The value may be empty. See §6 for the detailed description of this field for
each event.
5.5 Wizard
The wizard assists the user during the DCU20 configuration. The wizard should be run once at
commissioning and every time the battery is replaced. The wizard shows the following screens:
1) The user must confirm with the
OK KEY or use the MENU KEY to
exit the wizard. Exiting the wizard
any time before the end leaves the
configuration unchanged.
2) Insert the input nominal
voltage and click next to
confirm. See §5.2.1 for more
details.
3) Insert the battery chemistry and
click next to confirm. See §5.2.2
for more details.
4) Insert the battery nominal
voltage and click next to
confirm. See §5.2.3 for more
details.
