SOURCE: Use of a hyphen
either way is correct, you can also put it as (up front) with a space between the words.
Erratic operation up to and including load loss due to radio or camera flash operation. Do not operate or let customers operate a radio or a camera flash near the critical power systems, especially if the doors are open. Various manufacturers have recommend not to use these devices near the UPS or other Critical Power Systems. 1. Depending on the physical layout and components used on the control boards, the controls may be affected by an Radio Frequency (RF) signal of relatively low strength at the right (wrong to the control circuits) frequency from a hand held radio. 3. Analog circuits with high gains, high impedances, and diodes, may demodulate the RF signal and cause the controls to malfunction. 4. So far, cellular phones have not been detected to cause a problem, but it is still a good idea not to get them too close to the control circuits when in use. NOTE: Units built for certain military applications must meet RF interference susceptibility specifications. They have special shielding installed, but even they may not meet the susceptibility specifications with the doors opened. 5. It has been witnessed for a UPS to blow inverter fuses when a strobe flash on a camera was charging and the UPS doors were open. The RF from the strobe oscillator caused an inverter bridge to misfire. 6. It has also been seen to knock down a microprocessor controlled UPS when the strobe flashed and caused an EPROM to misread even though the UV eraser window on the EPROM was covered with a label. light still penetrated enough to garble the instruction to the CPU and cause it to lock up.
2. Microprocessor circuits which often have a crystal for clock frequency, may modulate the signal in with the clock frequency and cause the CPU to lock up due to a missed or garbled instruction.
There are 4 possible ways to try and clear the battery timer alarm.
1. Press and hold the fault reset button for 3-5 seconds.
2. Press and hold the fault reset and security key simultaneously for 3-5 seconds.
3. Press and hold the fault and alarm silence buttons simultaneously for 3-5 seconds.
4. Cycle logic power
Visit this site for more details. Type in the site name "Electro-help" either Google or Yahoo search box [not
in the address bar of your browser], and click search. It is an electronic equipments service help
site. All details you want are
there. Note the position of
hyphen in between words in site name, when you type it in. The site will appear as it is in
web; subtitled as Service help to electronic home entertainement equipments.
Pull up older posts.
You can get all details.
Site is listed in Google, and you can locate it either at
the bottom part of first search page, or at the top of second page.
Click on associated ads too. Sometimes, it might help you.
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