You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
3. Service<br />
Battery Set for UPS 60, Order No. 77 3450 00<br />
To ensure the safe function of the system, batteries should be replaced every 3 years - depending on<br />
the ambient temperature (Refer to diagram 1, Item 4). After 3 – 5 years, the battery capacity has<br />
dropped to approx. 60%.<br />
4. Battery service life<br />
The battery set UPS 60 comes with sealed, service-free and rechargeable lead-gel batteries VRLA.<br />
According to the EUROBAT classification, these batteries have a useful service life of 5 – 7 years.<br />
This time, however, strongly depends on the relevant ambient temperature. (Up to 20 °C: 7 – 8 years<br />
as shown in diagram 1)<br />
If the system will not be used for an extended period of time, the batteries should be fully charged to<br />
prevent a total discharge. (Refer to item 5 "Storage") While the system is not used, the battery fuse<br />
(located between the two batteries) has to be removed to prevent total discharge. After the charging<br />
process has been completed, the battery set for UPS 60 has to be disconnected from the power<br />
supply unit UPS 60 by disconnecting the battery connection cable (see chapter 2.) or by removing the<br />
battery fuse.<br />
Battery service life (years)<br />
Temperature<br />
Diagram 1: Battery service life in relation to ambient temperature<br />
4.1 Battery change<br />
Pb<br />
Lead-gel batteries contain harmful toxic substances. Observe valid safety directives when<br />
during handling and transport. For disposal, comply with local directives.<br />
Batteries bear the risk of excessive short-circuit currents. Never create any direct contact<br />
between the battery posts and or other conductive component parts. Therefore remove any<br />
wristband, watch, finger rings or other metal objects when working at the open unit. Always<br />
use tools with standard isolating handles.<br />
Batteries may be replaced only by the same type of battery (2 x 12 V; 24 Ah). We recommend the use<br />
of the battery type BAT 12-24, <strong>Tunstall</strong> Order No. 00 0648 87. The use of other makes may create<br />
problems due to different connecting terminals or differing dimensions.<br />
1. Shut off mains supply to the power supply unit UPS !!!<br />
2. Release the 6 fastening screws for the cover and remove the cover to the front.<br />
3. Confirm the position of the old batteries and after their removal, install the new batteries<br />
in the same manner.<br />
4. Make sure, the new batteries are in the same position and check for the correct battery<br />
contacts. False connections may damage the power supply unit UPS !<br />
5. Put the rubber grommets back on the connection screws.<br />
6. Fix the battery position by securing it with the Velcro tape.<br />
© <strong>Tunstall</strong> <strong>GmbH</strong>, Orkotten 66, 48291 Telgte, Germany, www.tunstall.de, 00 8802 82, Rev. 2.1 (05/2008) English - 3<br />
<strong>Technical</strong> <strong>Manual</strong> Page 152
Change language