Works with 1.0 thru 6.0 kVA Rugged Power UPS Products and Battery Modules
ETI uses the highest quality, maintenance-free, immobilized electrolyte, lead-acid batteries in all of its Rugged Power™,World Power™and Military Power® UPS products. However as with all lead-acid batteries, there is an internal self discharge that will over time discharge the battery when not being charged. Three basic factors effect the shelf life of batteries: the charge state when stored, the storage temperature, and the length of time stored without being recharged. A battery should never be stored in a discharged state, otherwise it will form lead sulfate that permanently damages the battery. If a battery is stored fully charged at 68°F (20°C), then it would require are charge at least once every six months to maintain its design life. If the storage temperature is 88°F (40°C), the storage time between supplementary charges is less than three months. With some projects stretching out over many months, maintaining the charge state of the batteries in the UPS can be a problem. Secondly,attempting to stock spare battery packs or modules for deployed units becomes an even more difficult task since they do not have their own charger like the UPS.
Designed for either in a rack or on a bench top, the ETI0001-1151 Charger/Conditioner is ideally suited for periodic or continuous maintenance of the batteries in the UPS as well as spare Battery Modules. The ETI0001-1151 is specifically designed to support ETI UPS products from 1.0 kVA through 6.0 kVA, including the JMCIS, DTC-2, TAC-3 and TAC-4 UPS. The heavy-duty chassis, occupying only 3.5” of rack space, has rounded metal corners and rugged handles, aid in safe handling. Internally, all major components are well secured and electrically insulated to prevent damage due to shock and vibration. The front panel meters and LEDs keep the operator informed as to the unit’s status including charge voltage, current, and charge state.All controls and protective devices are brought to front panel and are recessed to prevent damage or accidental operation. The rear panel provides locking connectors for the input and output power. The four output connectors use adapter cables to interface directly with the UPS units and/or with the sparebattery modules. An output selector switch allows the operator to choose between the three nominal outputs. Output current is specifically regulated for optimal battery life, including compensating for ambient temperatures.
In addition to maintaining the correct charge on the battery, the ETI0001-1151 has a Battery Conditioner Section. Battery Conditioning is initiated by pressing a switch on the front panel. This starts a programmed cycle beginning with the first battery connected. It performs a gradual discharge of the battery to a specific level, then begins recharging the battery. This discharge/recharge cycle serves to freshen the battery so that it can perform better on demand. Once it has completed this cycle on the first battery connected, it starts the same cycle with each subsequent battery connected.
The internal input transformer provides galvanic isolation with provisions for both domestic (115 VAC, CONUS) and international (230 VAC, OCONUS) input voltages. The auto-ranging input voltage selection allows inputting either 115 VAC or 230 VAC without having to open the enclosure. The input switch and the galvanic isolation transformer provide a double pole isolated source for all installations including shipboard systems or overseas locations where phase references and grounding are not consistent.
Overall,the ETI0001-1151 provides a reliable yet simple solution to the issue of maintaining UPS batteries while in storage.