Help Reqd. : Best 600Va UPS for Projector backup

[cmsajith]

Which is a reliable 600Va UPS (small form factor) for an Optoma HD20 projector (220w max) with fast change over? I require a backup of only 5 mins to shut it down properly and it will be used only for a projector.

I tried with an Intex 600Va, but the change over time is high that the projector is getting switched off on a power failure. I need to buy one immediately as it happened 2 or 3 times. I will be connecting the UPS after my Servo stabilizer.

Please mention the approx cost also.

Thanks in advance.

 

[just4kix]

I am looking for a similar solution. I tried a couple of UPS's - one of them was APC and they were designed for PC/desktop. While they worked for PC, they failed with the projector.

Vendor suggested trying out with an online UPS with 1 KVA rating but the price is fairly high - about 10K. Also such a UPS is very bulky.

 

[santhosh]

I am using an APC 800VA, works well with my projector. Not sure about the current prices.

 

[cmsajith]

I am using an APC 800VA, works well with my projector. Not sure about the current prices.

Online / OffLine?

 

[ashishkesarwani]

In the past I have used Microtek 1Kva offline UPS with projectors and they have worked fine with my requirement and costed just 3500.

 

[cmsajith]

In the past I have used Microtek 1Kva offline UPS with projectors and they have worked fine with my requirement and costed just 3500.

any idea about the power consumption of your projector?

 

[santhosh]

Online / OffLine?

UPS is Offline and projector is HD20, same as yours.

 

[cmsajith]

Any idea what is the maximum delay allowed to prevent a projector from switching off?

 

[ashishkesarwani]

The switchover time should be less than 20 mili seconds

 

[ashishkesarwani]

any idea about the power consumption of your projector?

A 1 KVA rated projector will give an output of 650 VA in operation mode which suits a projector's requirement.

 

[cmsajith]

A 1 KVA rated projector will give an output of 650 VA in operation mode which suits a projector's requirement.

Yes, a 650-750w should be supported on considering the PF. Just for the projector a 650va is enough, but i am worried about the switching time. Let me check the different models from APC /Micotek. Is there any other reliable brand which we can consider apart from these?

 

[aashish351]

I have recently setup the Panasonic PT-AE1000E with an APC Back-UPS 1KVA. Anything below 1 KVA does not work well. It may not swtich of the projector but there is a 1-sec black out every time there is changeover.

 

[sanj]

Try 1000VA Enlova Online UPS .

 

[cmsajith]

I have recently setup the Panasonic PT-AE1000E with an APC Back-UPS 1KVA. Anything below 1 KVA does not work well. It may not swtich of the projector but there is a 1-sec black out every time there is changeover.

1sec?!!! I think it will switchoff any PC also.

 

[cmsajith]

Try 1000VA Enlova Online UPS .

Online UPS will be expensive. I am looking for an offline option with a less change over time, preferably less than 20secs

 

[aashish351]

1-sec was just a figure of speech... it is more like a split-second black out which does not power off the Porjector completely.

 

[cmsajith]

I checked the spec from the Intex website, model Intex Protector 725 (mine is Protector 600). It says 3-4 milliseconds, i doubt the issue is because of a manufacturing defect or the spec is like PMPO vs RMS?

 

[cmsajith]

Is this good enough : APC Back UPS BR 600VA BILL + 2YR Onsite Warranty | eBay

But I couldnt see any changeover time related info.

 

[Shivam]

I am using a Microtek 1.5 KVA inverter/UPS with sinewave output with 2 tubular wet batteries. I use it for lights, fans and projector. Sometimes when the weather is fine, I watch a complete movie on this. For audio I use a small bar speaker with virtual surround, also on the same inverter/UPS. The switchover is instant and I sometimes don't even know it if the lights are completely switched off.

 

[avink]

Is this good enough : APC Back UPS BR 600VA BILL + 2YR Onsite Warranty | eBay

But I couldnt see any changeover time related info.

Here are the details from the APC site:

Transfer Time
50 Hz: 6ms typical, 10ms maximum
60 Hz: 5ms typical, 8ms maximum