14 replies to this topic

[MrHappy]

Is it only me that worries about the quality of batteries,fitted in a UPS ?

Rather than a genesis or yuasa, there always (APC anyway)of the black lynteck, risco, texecom type now most of us would not use these in our systems but, have one between a 1k+ dvr & the main.....

[jameswilson]

Agreed, but my main concern with the UPS is the mains filtering. We chnage the batt to a yuasa as part of the service anyway

[Service Engineer]

Quote

my main concern with the UPS is the mains filtering

Please elaborate, what is the concern with the mains filtering.?

[jameswilson]

Service Engineer, on 22 May 2010 - 01:44 AM, said:

Please elaborate, what is the concern with the mains filtering.?

how well its filtered

[jb-eye]

jameswilson, on 22 May 2010 - 07:27 AM, said:

how well its filtered

get some of those pesky 50+Hz and the odd sneaky bit of DC that get in to the mix,

[IAS]

UPS?


CCTV?


is it that comman then?

[arfur mo]

IAS, on 22 May 2010 - 06:15 PM, said:

UPS?


CCTV?


is it that comman then?

with CCTv DVR's (and Telephone PABX's as it happens), fitting a UPS to the DVR is a very very wise precaution for what they cost, if not looking for massive long standbye times.

reduces the instances of locking up especially on the cheaper kits, due to usually superior filtering, but also hiccups caused from short local disconnections by the power co.

regs
Arfur Mo

[jameswilson]

we usually fit an apc ups on all our cctv unless the client wants all the little bits like that stripped out.

[IAS]

every days a school day, UPS now added to next quote, cheers

[Cubit]

IAS, on 22 May 2010 - 06:15 PM, said:

UPS?


CCTV?


is it that comman then?

Used to be a necessity on the older units.
Kicker was sites with backup generators. Genny kicks in, Hard Drives stuffed. Intellex were very susceptible.

[jameswilson]

Cubit, on 22 May 2010 - 08:10 PM, said:

Used to be a necessity on the older units.
Kicker was sites with backup generators. Genny kicks in, Hard Drives stuffed. Intellex were very susceptible.

agreed
even if you dont fit one, at least recommend one.

[arfur mo]

tbh the Maplins units i find pretty good for the 'bread & butter' systems at the price, generally always available reasonably locally and way better than any anti-surge extension lead.

really, on smaller budget systems your looking to protect against the short 'flick' power downs, as to protect against say an 8 hour outage, add in the cameras and your going to be paying the big bucks that shopping centers might command.

regs
Arfur Mo

[MrHappy]

arfur mo, on 22 May 2010 - 09:13 PM, said:

tbh the Maplins units i find pretty good for the 'bread & butter' systems at the price, generally always available reasonably locally and way better than any anti-surge extension lead.

but does it have IEC sockets ?

used to use belkin, but they appear to have vanished from the market so on with APC

http://www.ebuyer.com/product/196269

sure its gone up a tenner ?

handy to have std outlets to bang a 13amp plug top

[jameswilson]

arf
After testing a few brands we now only use APC. Usually a CS unit

[arfur mo]

no probs with that, for CCTv and PABX needs you rarely need more than 5 minutes standby.

cheap CCTv on a power down will usually mean cameras are dead anyway unless powe4ed from the DVR, so you looking to make sure the DVR is protected for when the power restores, PABX 5+ mins is enough to call the emergency service and/or evacuate staff for a suspected bomb scare for instance.

so a budget unit from Maplin will be fine for that need, obviously increase for the jobs that need it.

iirc the smaller Maplin units they have 3 x13 amp socket outputs, but only one socket is maintained. so the 'trick' is to use an extension lead if you need to power the PSU's as well.

regs
Arfur Mo

just to add, these units carry a hefty indemnity insurance for any damage not prevented from EMF or Lightning

http://www.maplin.co...ModuleNo=222105

regs
Arfur Mo