by May 10, 2001 0 comments



We did not include this UPS in our shootout because of its 700 VA rating, which was below our minimum rating. However, we still performed all our standard tests on it. This compact UPS from Tata Liebert is a modified version of the PSA700 that we had reviewed last year. Let’s see how it fared on our torture bench.

It passed our qualifier load test at 100 percent load. We saw that it shows a good input voltage range, which varies from 163 V to 270 V. This range can handle almost all voltage fluctuations. The corresponding output voltage is also acceptable. When it comes to the battery performance, this UPS gives a backup of around five and a half minutes at 80 percent load. This is quite good in terms of the time you have in hand to wind-up something before you shut down your PC. This can be attributed to the 12V 10AH battery inside it. And the UPS switches to battery in a mere 7.4 milliseconds. In our tests the Droop voltage never fell below 217 V (DC). So there are no chances of your PC rebooting during any switchover.

Type: 700 VA line-interactive Price: Rs 9,725
Backup: 5.3 min Switchover voltage (max, min): 270 V, 163 V Switchover
time
: 7.4 ms Voltage regulation: 193-245 V

As for its features, it has a phone-line surge protector and a serial port for interfacing with a PC. It has four power outlets. It is priced at Rs 9,725 and has a two-year warranty on both the UPS and battery. Though it has optional control software, we were not provided with one. We were also not provided with a manual for the UPS, probably because it is supposed to be a new model.

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