Apc BK600EI User Manual download pdf (Page 13)

Page 11

capacity of the UPS, don’t worry. The next section describes a test that you can perform

to determine whether or not your equipment and the UPS are compatible, even if the

computed

power requirement of your equipment is 50% greater than the capacity of the

UPS!

3.6.5 Once all power requirement figures have been converted to VA units and added

together, simply determine whether the power requirements of your equipment is less

than or equal to the capacity of the UPS. If this is not the case, then it must be decided which

equipment should be left unprotected by the UPS. See section 3.8 covering overloads.

3.6.6 An example of how to determine the power requirements of a computer system is

given below.

Example - labels found at system equipment rear panels

The power requirements of the example computer, monitor and external tape drive may

be calculated as follows:

Computer VA = 230 x 1 A = 230 VA

Monitor VA = 70 x 1.4 = 98 VA

Tape Drive VA = 230 x .2A = 46 VA

_______________

Total = 374 VA

In this example, a UPS with at least 374 VA capacity can be employed to protect the

computer, monitor and external tape drive. However, a UPS with somewhat lower

capacity may still be used if the following test for proper operation is successful.

3.6.7 Once you have determined that your equipment and the UPS are compatible, plug

your equipment into the UPS’s rear panel output receptacles.

230 VAC, 70W

50/60

230 V~ .2A

230 V~ 1A

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Apc BK600EI User Manual Page 13