input needed. VHO testing...
Hey Andrew,
My plans for the box are so that it is only placed over the tube for measurements. Then teh lid is closed once it is taken. imagine a box 12" high 6 inches wide and 8" deep. A notch will be cut to fit around the tube on the sides. The meter will be placed on the top of this only for measurements.
I want to run this for a longer period of time so as to see what kind of "burn in" each ballast has on a lamp. As well I want a large amount of data collected. So as to minimize any erroneous data. two measurements or more will be made each day to also factor out changes in power to the ballast etc.
I do see your point about running them for a longer period in the day to make the test runs shorter. ie 18 hours a day and test three or more times. instead of 12 hours with two measurements.
Titus & Victor(or anyone else who has the following),
Do have, know anyone who has a good quality Oscilloscope I can use for this? I want to measure Amps drawn adn well as voltage into the balalst but need to know phase angle to calculate Watts and Not Volt Amps.
Victor, if you have a scope I could borrow for a bit, I am sure I can let ya use the lux meter for an extended period of time for your own testing of Overdriven NO's.
If no one has that what about a good wattmeter???? up to 400W or so.
Awaiting any responses.
[ 20 February 2002: Message edited by: DJ88 ]</p>
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