Question about APC (BE500U-WEB) (BE500UWEB) UPS System

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My ups is giving dc suppy regular

My microtek ups is giving dc supply regular it not generating ac supply i don't know what to do.

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Do you mean that the UPS runs on battery but does not transfer to AC even when AC main supply is Available? If yes check the AC fuses inside the UPS. I assume you know how to disassemble a UPS, but if no please let an experienced technician handle this as you are expose to electric shock if you make mistake while the unit is open.

Posted on May 31, 2010

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1 Answer

The genarator if there is one regular? gives no pover to the battery


it generates less than 9 amps. they don't need a regulator to control voltage. some generate ac and dc current... for charging the battery is dc and running the headlights is ac

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My digitech rp 500 has power supply but it won't


Make sure you have the OFFICIAL Digitech power adapter. Universal adapters or those for MOST other pedals will NOT work... things may light up but you will NOT get audio. This unit requires an adapter supplying 9 VAC (not DC) at about 1 amp. These AC output adapters are not very common and people get the units without an adapter and try using universal adapters and they do not work. An AC adapter is used by Digitech so they can generate both plus and minus voltages internally. I don't know what your utility power voltage is in Cebu, so you need to get an adapter for your voltage that will give 9 VAC output and fit the power jack on the unit.

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What type of power supply is required for this speaker system? If available, how much can I expect to spend for the power supply? I have the speakers but no power supply.


Check the power-connector on the speaker for the rating:
* AC versus DC
* 4.5 versus 5 versus 9 versus 12 versus 18 volts
* 0.5 versus 1.0 versus 1.5 amps
* pole-negative-ring-positive versus pole-positive-ring-negative

Try the local "Thrift Stores", once you have the specifications. You may get the correct suppy for less than $5.

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I'm dumb. Can I hook an inverater to my generator and produce more enegry than my generator produces???


Please understand that the generator produces power from fuel with an engine wheras the invertor is one which genrerates power from a stored battery using the principle of frequency switching a DC source to induct and produce AC.
Now you can have an uninterupted power supply setting with the invertor backed up by the generator so that when the battery voltage goes down you can start and charge the invertor and also supply the extra energy .
the ratings of both must also be considered.

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1 Answer

Microtek 715c power supply requirements. I found this monitor by the curb and gave it a 17.5 vdc switched power supply. It works quite well except the power light goes blank while asleep and acts like...


SuperWarehouse.com just says it requires anywhere from 110-240 volts AC (which isn't very specific) and uses 48 watts. I don't see anywhere online that lists the DC power output... sorry. If you could get a manual for it that might help.

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1 Answer

Hey i want to know whether fridge requires DC power supply or AC power supply


DC applied to any standard refrigerator would quickly damage the compressor motor and any fans present since these are all AC only motors.
Some (probably no longer produced) units used DC in their operation; - Peltier Efffect units that used a semiconductor device that acts as a 'heat pump,' removing heat from inside the cabinet and dissipating it outside. - A new type of compressor that hummed like a low frequency speaker and surely used DC in the generation of the driving signal.
The first proved to be less efficient than our near century old compressor system and the odd low frequency noise produced by the second could not be contained adequately for home use. 

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I need a 5kW DC generator with -48v output.


I have 5kW generators that produce -48V DC. The problem is that unless your generator is designed to produce -48V DC it would be difficult to retrofit an existing AC voltage output with a DC output.

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1 Answer

IN NEED OF A POWER CHORD


Does the unit need an adaptor or just an AC power cord? If it has an input jack similar to other DC input devices that use a 'wall wart' type with a large plug (actually a primitive power supply), you need to determine what voltage and current it needs. 

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1 Answer

Microtek ScanMaker power AC/DC adapter


OK WELL I HAVE A MICROTEK SLIMSCAN C3 AND I HAVE THE CABLE FOR THE POWER AND FOR USB......BUT MY PROBLEM IS THAT I DON'T HAVE THE CD TO INSTALL THIS.
IS THERE ANY ONTHER WAY TO INSTALL THIS IN MY COMPUTER WITH OUT THE CD??????
PLEASE EMAIL ME TO gemalabonita92@hotmail.com IF U HAVE THE ANSWER TO MY QUESTION!
THANK YOU!

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1 Answer

Power supply


you are so lost... a short in anything after the power supply will shut down the horizontal driver signal. first check to see if horizontal output transitor is shorted. If not it should have about 110 volts dc on it. if not go back to Power suppy ...many things start here...check to see if you micros got power a 5v heatseeked regulater is common bad. also the startup circuits can be tricky...in the power suppy. I look for a kit online for power supplies ...they give you about every that fails. or you can start buying boards...best bet it is take to a professonal for you my freind havent a clue. CrazyLarry

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