baijuxavior
Well-Known Member
An online UPS was always on my radar for a long time. Took the plunge recently and bought 1KVA UPS from Emerson Liebert.
Liebert GXT MT+ 1,2 & 3 kVA Online UPS
Even though APC is the market leader, I mainly went for Emerson as this brand is used by some of our forum members for powering their AV gears and are satisfied by its performance.
I contacted the Kochi dealer of Emerson and upon confirming the order, they brought the UPS to my home and did the installation. Prices quoted were 17.5K +5% tax for 1KVA (800W) and 28.5K+tax for 2KVA model both with internal battery. 2KVA was out of my budget. As I needed extended backup I went for 1KVA 'Long Run' model with external battery. 2KVA requires 6 batteries further raising the budget.They quoted 25K for 1KVA UPS, 3 batteries (18AH) and a battery rack. Since they didn't bring the rack, they reduced the final price to 24.2K. This includes transportation to my home (80KMs from Kochi) and installation.
The package contains UPS, Power input cable, power out cable, Driver CD and USB cable. Build Quality is very good. It is lighter than normal 600VA UPS as there is no internal battery. This makes moving the UPS very easy.
Front View:
There is a big blue LCD display and a round button with three switches at the front. The power ON button also acts as a mute button pressing which battery mode alarm can be disabled. The alarm can be completely disabled by configuring the UPS using PC. Other settings like configuring the output voltage, viewing different status like Line Voltage, Battery Voltage, Load Level, Output Voltage, Temperature etc. can be done using these three buttons.
Back View:
At the back, there are 4 IEC type power outlets. Two of these are configurable. We can set a time delay to shut off these two outlets when in battery mode. Less critical devices can be connected to these outlets to get maximum backup time. The outlets require IEC type connector. Luckily it is also provided with the UPS. We have to terminate the other end and join to the extension box. For communicating with a PC, both USB and RS232 ports are available. The fan noise is quite high and is not suited in HT room. Add to this the bright LCD.
PC Monitoring
Using the USB port, the UPS can be completely monitored from a computer. The software provides various information about the UPS, options to monitor UPS events, shutdown PC conditionally, change settings etc. We can also turn on and off the ups using scheduled tasks.
UPS Status:
UPS Settings:
Performance
I ran Denon 1612 AVR, HTPC, TV, Subwoofer and STB through the UPS and it handled all these loads easily. The average load level was 15-20% only. The batteries will give a backup time of 40-50 minutes. It will give around 6 hour backup time if TV and STB only are used. The working voltage is from 160V-250 only eventhough the website says it can work from as low as 110V depending on load. Beyond these limits it will switch to battery mode completely. Since in my place the voltage hovers around 150-180V, the UPS alone cannot be used. The UPS is connected to servo stab if the voltage is too low.
Pros:
Rock steady output
Easy to use
Light weight
Comes with all accessories.
PC monitoring
Cons
Bright blue LCD display
Fan noise
Expensive
Increased power consumption than normal UPS or stabilizer.
Needs stabilizer if input voltage is too low.
Liebert GXT MT+ 1,2 & 3 kVA Online UPS
Even though APC is the market leader, I mainly went for Emerson as this brand is used by some of our forum members for powering their AV gears and are satisfied by its performance.
I contacted the Kochi dealer of Emerson and upon confirming the order, they brought the UPS to my home and did the installation. Prices quoted were 17.5K +5% tax for 1KVA (800W) and 28.5K+tax for 2KVA model both with internal battery. 2KVA was out of my budget. As I needed extended backup I went for 1KVA 'Long Run' model with external battery. 2KVA requires 6 batteries further raising the budget.They quoted 25K for 1KVA UPS, 3 batteries (18AH) and a battery rack. Since they didn't bring the rack, they reduced the final price to 24.2K. This includes transportation to my home (80KMs from Kochi) and installation.
The package contains UPS, Power input cable, power out cable, Driver CD and USB cable. Build Quality is very good. It is lighter than normal 600VA UPS as there is no internal battery. This makes moving the UPS very easy.
Front View:
There is a big blue LCD display and a round button with three switches at the front. The power ON button also acts as a mute button pressing which battery mode alarm can be disabled. The alarm can be completely disabled by configuring the UPS using PC. Other settings like configuring the output voltage, viewing different status like Line Voltage, Battery Voltage, Load Level, Output Voltage, Temperature etc. can be done using these three buttons.
Back View:
At the back, there are 4 IEC type power outlets. Two of these are configurable. We can set a time delay to shut off these two outlets when in battery mode. Less critical devices can be connected to these outlets to get maximum backup time. The outlets require IEC type connector. Luckily it is also provided with the UPS. We have to terminate the other end and join to the extension box. For communicating with a PC, both USB and RS232 ports are available. The fan noise is quite high and is not suited in HT room. Add to this the bright LCD.
PC Monitoring
Using the USB port, the UPS can be completely monitored from a computer. The software provides various information about the UPS, options to monitor UPS events, shutdown PC conditionally, change settings etc. We can also turn on and off the ups using scheduled tasks.
UPS Status:
UPS Settings:
Performance
I ran Denon 1612 AVR, HTPC, TV, Subwoofer and STB through the UPS and it handled all these loads easily. The average load level was 15-20% only. The batteries will give a backup time of 40-50 minutes. It will give around 6 hour backup time if TV and STB only are used. The working voltage is from 160V-250 only eventhough the website says it can work from as low as 110V depending on load. Beyond these limits it will switch to battery mode completely. Since in my place the voltage hovers around 150-180V, the UPS alone cannot be used. The UPS is connected to servo stab if the voltage is too low.
Pros:
Rock steady output
Easy to use
Light weight
Comes with all accessories.
PC monitoring
Cons
Bright blue LCD display
Fan noise
Expensive
Increased power consumption than normal UPS or stabilizer.
Needs stabilizer if input voltage is too low.
