First, use our guide How to Specify a Cost Effective UPS system, in order to decide UPS
Type, Size, and required Backup Time. Next, consider the following helpful tips before
concluding your Power UPS buying deal.
And that you are covered against any malfunctions due to possible inadequacy
of the offered UPS with your critical hardware.
Type, Size, and required Backup Time. Next, consider the following helpful tips before
concluding your Power UPS buying deal.
- Connect to the UPS only critical loads which need to be protected. Certain
malfunctions in consumers connected to the UPS may cause total output shutdown.
- Increase UPS capacity to allow for future load capacity expansion.
- Take in account that rated battery backup time refers generally to new batteries and
deteriorates during battery's life time.
- Consider selecting the next UPS size to increase Backup time. Rated Battery backup
time refers generally to full load, increasing almost threefold at half load.
- Consider air conditioned location. Battery lifetime is strongly temperature dependant.
- Don't buy backup time that you don't need. Longer autonomy time does not mean
better equipment.
- When considering Online UPS, prefer systems with extended battery option and with
ability to increase power by adding parallel units when more power is needed.
- Unless you use a Distribution Board at the output of the UPS, make sure that the UPS
is equipped with the required types and amount of output receptacles.
- If you do not see a clear advantage for your application, don't pay more. Higher price
does not necessary mean a better or more reliable unit.
- Don't buy any extras if you are not sure that they are needed for your application.
Most can be added in the future whenever required.
- Some manufacturers provide 6-figure guarantee to cover damage to your equipment
the enormous sums are seldom meaningful, you won’t generally be paid above the
value of your backed up hardware. The main items, such as loss of data, or
discontinuity of service to your clients are not always covered.
- Make sure that the UPS comes with software which shuts down gracefully and
automatically all backed up computers.
- Make sure that the UPS includes surge protectors on input and communication lines.
- Make sure that the UPS performs automatic battery tests, warning whenever the
batteries should be replaced. Otherwise you will discover that your computer goes
down when the lights turn off. Don't be tempted to buy manually initiated test.
Nobody remembers to keep the routine.
- Avoid falling into a trap of misleading terms. Smart UPS should regulate output Semi-
sinusoidal output is not sinusoidal. On -Line must be Double Conversion and able to
regulate output frequency. Note that "Automatic self-test " does not always mean
battery test as well.
- Prefer hot swap-able Batteries. The batteries of some systems are not accessible by
- When purchasing the UPS, make sure that after sales service is in good hands. Check
- Check Guarantee Duration, Where and When it is provided. It is not uncommon to
get several years guarantee, 7 days per week at your premises.
- Check the make of the UPS you are going to buy. Check that manufacturing company
is at least ten years in the UPS business. Get recommendation if the company is
unknown, or check listing in our UPS Manufacturer's directory.
- Some UPS systems may not function properly with specific loads. Unless you have
professional consultation we strongly advise to make sure with the UPS
And that you are covered against any malfunctions due to possible inadequacy
of the offered UPS with your critical hardware.
| Help and Tips for Cost Effective Uninterruptible Power System |
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| What to look for when buying a Power UPS |
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