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low battery voltage

 
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Kathy Esquivel



Joined: 26 Feb 2001
Posts: 2
Location: Belize City, Belize

PostPosted: Mon Feb 26, 2001 10:13 am    Post subject: low battery voltage Reply with quote

A customer has complained that his MBK520 gives 115 volts output on ac but when on battery only provides 85 Volts. We tested a new MBK680 when fully charged and found that when working on battery the output is only 85 Volts. Please advise.
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rcalhoun



Joined: 30 Mar 2000
Posts: 79
Location: Carrollton, TX 75007

PostPosted: Mon Feb 26, 2001 10:42 am    Post subject: Reply with quote

quote:
Originally posted by Kathy Esquivel:
[b]A customer has complained that his MBK520 gives 115 volts output on ac but when on battery only provides 85 Volts. We tested a new MBK680 when fully charged and found that when working on battery the output is only 85 Volts. Please advise.[/b]

Kathy Esquivel,
The MBK series has a simulated sine wave output. To properly measure the output voltage of any UPS with a simulated sine wave, a True RMS voltmeter must be used. If a True RMS voltmeter is not used then the voltage that is measured will be incorrect (85Vac). When using a True RMS voltmeter the voltage will read 115Vac.

RCalhoun

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