Microtek UPS Problems (And A Solution)
Blog | Tech Blog | Secure Coding | Twitter | RSS Feed | Get Email Updates
—-
I got myself a Microtek 800VA UPS (MDP800+) a couple of weeks ago to save my PS3 from the frequent power outages that we are seeing in Hyderabad but the purpose was rather lost when I found that it worked fine only till the mains power was on. As soon as there was an outage, it couldn’t stop the PS3 from an abrupt shut down. I ran around the pathetic Microtek customer service for days and they finally sent an “engineer” down to my place (after a week) to diagnose the issue and he couldn’t say anything more than that the UPS is meant for a PC and nothing else. All logical discussions to tell him that PS3 is essentially a PC but in a different form were kind of like pouring water on a well-oiled rock and hoping it would stick.
Kind of disappointed, I had a hunch which solved it for me though today 
. When I tried to read the output voltage from the output ports on the UPS, it showed me 225–230V when main supply was on. As soon as it was switched off, the output dropped to around 160V. On connecting the PS3, it went up a bit (to around 180V). Now, the load should not have been an issue because a PS3 requires 180–350W I think, which can easily be given by even a 500VA UPS. So far, all suggestions given to me were to remove everything else from the UPS except the PS3, but that was actually my setup in the very first place.
The weird idea that I had was that the problem is, in fact, that the PS3 is not enough load for it. Call me crazy but as soon as I connected my TV also to the UPS, it started working just fine and dandy. No trip ups now, and I can even cold-boot my PS3 and TV from the UPS backup alone.
Now, I ain’t the sharpest tool in the shed when it comes to electrical stuff (in fact this was one of my most dreaded subjects during my graduation). So, if anyone can give me a sound reasoning behind what I just saw would be very much appreciated. Or is this a real fault with the unit that I got, or maybe it is a defect in all the Microtek UPS’s? Anyways, I ain’t complaining till it’s working for me and if you are seeing the same issues you could try the same as well.
© Shantanu Goel | Microtek UPS Problems (And A Solution)
|
Liked this post? Get FREE Updates Subscribe to RSS feed 
|
This post has 7 comments
May 19th, 2009
Hey.
It seems to me that 800VA != 800W,because there should be Power factor taken into account,which is generally 70-80%(0.7-0.8).So formaula to convert it into Watts would be something like
V*A*(power factor)=800*0.8=640 W.Now if your PS3 requires upto 350 W.And its working when you applied more load.I would guess that UPS is considering your PS3 load as “NO-Load” condition.No-load thresold is generally defined by manufactureres.There could be two solutions
1.As you already did,Increase the load
2.adjust the UPS “load load” circuit sensitivity so that no-load thresold is decreased.Regarding this you should ask Microtek.
-Dheeraj
June 9th, 2009
same problem here ,but with my pc with 650w smps
when playing games pc shuts down when no power
i dont know what to do . i got a replacement ups after so many arguments from microtek still the problem remains . There is a hissing noise from the transformer and the system shuts down I have the same Microtek 800VA UPS
I think it is its inherent problem this model
..if anybody can help please…
June 30th, 2009
Dude , Shanti .. i got the same UPS :wallbash: should have read your blog before
my setup = PS3 + HDTV to the UPS during backup the HDTV restarts
that idiot service guy tells me that UPS’s are meant for computers not for I have got it for .
now WTF what sort of a reason is that :loco:
June 30th, 2009
but your PS3 remains on or that also restarts? Anyways, the solution didn’t work too long for me and the UPS is acting up again..Microtek service is pathetic..I am calling them again for last 2 weeks. Lets see what happens..
June 30th, 2009
(during backup) PS3 is on working gr8 , TV restarts and works fine there on. my only concern is that stupid restart in the TV which want to get ridd of … TV load = 200watts PS3 load = :unsure:
load capacity of UPS in watts = :unsure:
however the TV does not restart during backup when the PS3 is not running , so i assume it has something to do with the load on the UPS and tripping of the TV :scratchchin:
October 30th, 2009
My son has purchase a 600VA UPS producing trable
December 21st, 2009
My son has purchase a microtek UPS 800 at Vir Shavarkar block shakarpur, Delhi but it not working upto mark. As light goes the UPS did not go off automatically after 30 seconds and hapen other good quality UPS.
I have registred a complaint on line with address and mobile no but more than two months has elpsed but no one turn up or any communication from this good company. So I think the UPS system is not upto quality only taking advantages of Inverters. Will any one in microtek is monitoring such complaints. I hope.
S.P. Dimri,
Sector 4A/1155,
Vasundhara
Gaziabad(UP)-201012
Moblie No. 9717245246 and
9891222224