5.0 Operation

5.4 Line voltage bar graph

Oy¡¸ ¸ ¸

766 ny¡ 786 ny¡ 86D ny¡

88658965 8=6 ny¡

116

109

102

96

90

84

130

123

116

110

104

98

237

225

212

200

187

175

260

246

232

220

208

196

The line voltage bar graph displays the UPS's input voltage in discrete steps. Line voltage is displayed when the I/Test pushbutton is pressed and held. The example above shows that the UPS's input line voltage is between 116 and 123 Vac (120 Vac version UPS, see table for values for other versions). If no bars are illuminated, and the UPS is plugged into a known working wall outlet, the line voltage is extremely low. Low input voltage could be a result of an overloaded branch circuit, a misadjusted service pole transformer or intentional local service brownout. The UPS will compensate for this problem by boosting the load voltage supplied to your computer equipment. If all six bars are illuminated, the line voltage is high and should be checked by a qualified electrician.

5.5 Audible alarm

The UPS contains a beeper that emits sound through the ventilation openings. Events that cause the beeper to sound are listed below.

5.5.1 On-battery operation

The UPS emits four short beeps every 30 seconds following failure of the utility. The audible alarm is silenced until the next utility failure when the I/Test pushbutton is pressed.

5.5.2 Low battery

During an extended utility failure, the UPS will eventually emit continuous beeps to indicate that less than 2 minutes (or 5 minutes, see section5.6) of run time remain before shut down due to battery capacity exhaustion. The low battery warning cannot be muted.

Page20

Page 22
Image 22
APC 900, 2000, 1250 user manual Line voltage bar graph, Audible alarm, On-battery operation, Low battery

900, 1250, 2000 specifications

The APC series, particularly models 2000, 1250, and 900, represents a cornerstone in the uninterruptible power supply (UPS) landscape, providing robust solutions for protecting sensitive electrical equipment from power disruptions. These models are designed to ensure high availability and power reliability for a range of applications, from personal use to larger enterprise systems.

The APC 2000 is known for its high power capacity, rated at 2000VA/1600W. It features an advanced LCD interface that provides essential information, such as battery status and load capacity. This model incorporates pure sine wave output, making it ideal for devices that require a stable and clean power source. It also offers multiple outlets and communication ports, including USB and SmartSlot for additional network management capabilities. The integration of PowerChute software allows users to efficiently monitor and manage the UPS, ensuring proactive response to any power-related issues.

The APC 1250, with a capacity of 1250VA/750W, is tailored for medium-sized setups. Its compact design makes it suitable for small offices and home workstations. The model boasts similar features to the 2000, including an intuitive LCD display and pure sine wave output. The APC 1250 also provides automatic voltage regulation, ensuring that connected devices receive consistent voltage without unnecessary battery usage. The unit’s design prioritizes user-friendliness with tools for easy installation and monitoring.

Meanwhile, the APC 900 operates at 900VA/480W, catering specifically to individual users and smaller electronics. This model is designed for basic use, such as providing backup power for personal computers, networking equipment, or smaller electronics. The APC 900’s standout features include user-friendly status indicators, fuse protection, and several outlets to ensure multiple devices can be connected simultaneously. Its compact size makes it particularly appealing for home environments where space is at a premium.

Each of these models leverages cutting-edge technologies including advanced battery management systems that prolong battery life and performance. They incorporate surge protection and noise filtering to safeguard sensitive equipment. In terms of physical characteristics, the UPS units are built with a focus on durability and ease of transport, featuring sturdy casings and integrated handles.

In conclusion, the APC 2000, 1250, and 900 models offer a range of features that cater to diverse power needs, ensuring reliable power protection and management for both personal and business applications. Their deployment of advanced technologies and user-friendly functionalities make them a preferred choice in the UPS market.