OPTI-UPS DS20KBT - Manual (Page 16)

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8. Maintenance
With a minimal amount of maintenance, you can expect the UPS to application, otherwise
consider changing the batteries. have a long life free of trouble. The most critical issues for
the reliability of the UPS are environmental issues. Ensure that the temperature and humidity
are always according to specifications and keep the area around the unit clean and dust free.
At a temperature of 25°C, the typical battery lifetime is 4 years.
Also check at regular intervals of 6 to 12 months whether the back-up time of the battery is
adequate for its
WARNING!
Batteries may cause electrical shock or burn from high short circuit
currents. Please observe the following precautions: 1. Remove jewelry and metal
objects such as watches and rings. 2. Use tools that have insulated handles. 3. Keep
tools and other metal objects from contacting and away from the batteries.
ELECTRIC ENERGY HAZARD. Do not attempt to rewire, alter, or change any
battery wiring or connectors. Attempting to make such alterations can cause
injury.
Replace the batteries with the same number and type as originally installed
batteries.
DO NOT DISCONNECT the batteries while UPS is in Battery mode.
9. Warranty
Warranty on this product is valid against defects in material and workmanship
for a period of 24 months from its original date of purchase.
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10. Technical Specifications
GENERAL
Rated power 6000 VA, 8000 VA, 10000 VA, 12000VA,15000VA, 20000VA
at p.f 0.7
Technology On-line, double conversion topology with automatic bypass
INPUT
Phase Single phase with ground or Three phase with netural+ground
Bypass Voltage: 184-265 VAC (user selectable)
Input Voltage range: 120/140/160/180 VAC-276 VAC (Single phase)
208/242/277/312 VAC-478 VAC (Three phase)
Frequency: 50/60 Hz. Auto selection
Frequency window from mains 45-65 Hz
Synchronization window ± 3Hz.
Input current 6000 VA 23.0A, 8000 VA 30.7A, 10000 VA 38.3A,
12000VA 46.0A, 15000VA 57.5A, 20000VA 76.6A (Single phase)
8K VA 10.2A, 10K VA 12.8A, 12K VA 15.3A,
15 KVA 19.2A, 20 KVA 25.5A (Three phase)
Input Power factor: 0.97(Single phase) ; >0.95 (Three phase)
OUTPUT
Output Voltage: 208/220/230/240 VAC, selectable from LCD panel
Voltage regulation: ± 2%
Voltage distortion: < 5% THD at full non-linear load, < 3% THD at full linear load
Frequency regulation ± 0.25 Hz (battery or free running mode)
* 120V at 25% load, 140V at 50%, 160V at 75%, 180V at 100%.
Dynamic response: ± 9 % max from 100% to 20 % or from 20% to 100 % linear load
Overload capacity: 110-125% 1 min, 126-150% 10 sec (Line mode)
110-130% 10 sec, 131-150% 1.5 sec (Battery mode)
Efficiency: greater than 88%
ENVIRONMENTAL
Ambient temperature: +0 °C to +40 °C
Recommended temperature: +15 °C to +25 °C
Storage temperature: -15 °C to +50 °C
Cooling: Forced air-cooling
Humidity: 0-95%, non-condensing
Audible noise: < 55 db normal and battery mode (5000-6000 VA)
< 65 db normal and battery mode (8000-20000 VA)
STANDARDS
Safety: EN50091-1-1
Emissions: EN50091-2 class B
Immunity: EN50091-2