Servicing the UPS

A client of ours, WDST in Woodstock, NY, has this Best FE7KVA UPS. This unit is several years old and has already been through a couple of battery replacements.  These are good units, however, Best Power has been bought up by Eaton/Powerware and they are no longer made apparently are still made.

Best Power FE7KVA UPS
Best Power FE7KVA UPS

Regardless of that, the UPS is still functional, but like all UPS’s, it needs battery replacement every so often.  This unit has three battery cases, each holding four 75 Ah (20 hour rate) 12 volt sealed lead acid batteries.  Each battery is slightly larger than an average car battery.  There is one important detail here, the batteries must be gas recombinant because the UPS has a four stage battery charging system.  Gel or AGM batteries will not make it past the first or second equalizing charge.

Best Power FE7KVA individual battery
Best Power FE7KVA individual battery

A bit about batteries and battery charging.  Most battery chargers are three stage units; bulk, absorption, and float.  The rate of charge depends on the voltage of the battery.  Bulk charging sends the most current to the battery and for 12 volt cells, this anything below 12.5 volts or so.  Absorption stage reduces the charging current and supplies a steady current until the battery reaches full charge of 13.8 volts or so.  Float or trickle charging draws very little current, just enough to maintain the battery at full charge.

The forth stage of charging is equalizing which is important for multiple battery series/parallel installations.  This is when the batteries are deliberately overcharged for a period of time.  The reason for equalizing charges is to intentionally boil off some hydrogen gas and knock any sulfur crystals off of the lead plates.  With multiple battery banks in a parallel configuration, it is important to maintain the battery resistances as close as possible so that each bank of batteries is drawn on and charged equally.

In flooded lead acid batteries, this works well and the battery either vents off the hydrogen gas or recombines it will oxygen to make water again.  In non-gas recombinant cells, the hydrogen will be released into the room which may pose an explosion hazard.  Additionally, the electrolyte level will need to be checked after every equalization charge. With a sealed non-recombinant battery, the case my bulge and split, spilling electrolyte and ruining the battery and battery enclosure.  Thus the importance of ordering the correct replacement batteries.

Best Power FE7KVA UPS and battery enclosures
Best Power FE7KVA UPS and battery enclosures

After all, the reason for the UPS is to protect the expensive computer equipment connected to it.  It simply will not do to install the wrong stuff and do more damage than if the UPS did not exist at all.

Panopticon

I have read an interesting series of articles on something called Panopticon. This is a concept put forward by an English social engineer where a prison is built in such a way that allows all inmates to be observed at any time without knowing whether they are under observation.   Jeremy Bentham described it alternatively as “a new mode of obtaining power of mind over mind, in quantity hitherto without example,” or “a mill for grinding rogues honest.”

Panopticon, courtesy of Wikipedia
Panopticon, courtesy of Wikipedia

A few examples were built and used for a while:

Presidio Modelo Prison, Cuba
Presidio Modelo Prison, Cuba

This is, of course, tied to the current situation that the nation finds itself in with the NSA. The defenders of these actions have two common refrains; nothing we did is against the law and if you are not doing anything wrong than you have nothing to fear. Both are wrong, of course.

First, the notion that constitutional rights can be regulated away is incorrect. The US Supreme Court has ruled that (Marbury V. Madison) in the Constitution, the people established a government of limited powers: “The powers of the Legislature are defined and limited; and that those limits may not be mistaken or forgotten, the Constitution is written.” The limits established in the Constitution would be meaningless “if these limits may at any time be passed by those intended to be restrained.” Chief Justice John Marshall observed that the Constitution is “the fundamental and paramount law of the nation”, and that it cannot be altered by an ordinary act of the legislature. Therefore, “an act of the Legislature repugnant to the Constitution is void.” The limits of government intrusion provided in the fourth amendment to the Constitution of the United States stand, regardless of what the USA PATRIOT Act or any other recently passed federal legislation says.

Secondly, things have not ended well when a government has given itself this much power. In conjunction with the NSA’s all-seeing eye, the executive branch has also acquired the power to detain and hold indefinitely without charge anyone deemed a threat (defined as “terrorist”) to the government (NDAA 2012, 2013) and the ability to extra-judicially kill all they see fit (Justice Department: US drone strikes constitutional). Of course, neither of these things are constitutional either.

As the former East German Stasi officer Wolfgang Schmidt states “It is the height of naivete to think that once collected this information won’t be used.”  We have, through our own lethargy and inattention brought upon ourselves the overly attached government, only not as cute as that, something like this:

I will be your girlfriend
I will be your girlfriend

Heaven forbid.

I wrote, a while back, that we have not reached a Runnymede moment. I retract that statement, we have indeed reached a point in time where civil disobedience may be necessary in order to restore our constitutional republic.  The time for being safe, sitting on the fence, flying under the RADAR is over.  As Aleksandr Solzhenitsyn said:

And how we burned in the camps later, thinking: What would things have been like if every Security operative, when he went out at night to make an arrest, had been uncertain whether he would return alive and had to say good-bye to his family? Or if, during periods of mass arrests, as for example in Leningrad, when they arrested a quarter of the entire city, people had not simply sat there in their lairs, paling with terror at every bang of the downstairs door and at every step on the staircase, but had understood they had nothing left to lose and had boldly set up in the downstairs hall an ambush of half a dozen people with axes, hammers, pokers, or whatever else was at hand?… The Organs would very quickly have suffered a shortage of officers and transport and, notwithstanding all of Stalin’s thirst, the cursed machine would have ground to a halt! If…if…We didn’t love freedom enough. And even more – we had no awareness of the real situation…. We purely and simply deserved everything that happened afterward.

Let us not learn the hard way.