Tescom DS300B Series, User Manual

Page: 61 / 69

59
Take notes if possible when you are examining the UPS. Compare the notes with previous ones and try to
determine if there is a change or not. If there is a difference between the previous notes and the new ones,
search for and record any new load added to UPS output between two records and the magnitude, place
and type of the new load, if possible. This information may help to technical authority who will search for
the cause of event in case of a failure.
If there is a remarkable difference between the records without any obvious reason, call technical service
immediately.
7.4 Annual Maintenance
Annual maintenance by authorized service should be done at least two times a year in order to provide
safe and efficient operation your UPS and battery group. UPS generates a warning message when the
maintenance time has expired.
7.5 Storage Conditions and Transportation of UPS
1- Check battery charge status by performing a manual battery test before living the UPS in a storage
place. If charge level is not high enough, leave the UPS for at least 12 hours to charge the batteries.
2- Disconnection oft he cables should be done by an authorized service personnel.
3- Batteries should be recharged once every 6 months during storage.
4- Store the UPS and the batteries in a cool and dry place.
Ideal storage temperature for UPS: 0
0
C to 40
0
C max.
Ideal storage temperature for batteries:10
0
C to 35
0
C max.
5- UPS should be fixed on its pallet for transporting. It should be carried by a forklift with ist pallet.