Sucks to be using "D******".
Those devices have mis-represented the disturbances on the AC line for decades.
Costing several Corps a few millions of dollars.
The "D******" devices miss, cannot measure nor read, any of the real world AC
line disturbances, that are disrupting today's technologies.
Their technology seems to be stuck in past, the way, way, back in the past.
Solution is to get an EMC engineer with a spectrum analyze and an
oscilloscope.Your consultant will advise false information based on "D*******"
reports.I have had to solve a number of field problems that were not problems
using the "D******".
They are a fine old company, using old technology, for old problems that no
longer exist.
They are not wrong. They are not applicable for today.
From: Ed Price <edpr...@cox.net>
To: EMC-PSTC@LISTSERV.IEEE.ORG
Sent: Friday, July 28, 2017 10:53 AM
Subject: [PSES] Dranetz Hardware
<!--#yiv4624533315 _filtered #yiv4624533315 {font-family:Calibri;panose-1:2 15
5 2 2 2 4 3 2 4;} _filtered #yiv4624533315 {font-family:"Century
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p.yiv4624533315MsoNormal, #yiv4624533315 li.yiv4624533315MsoNormal,
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{margin:0in;margin-bottom:.0001pt;font-size:11.0pt;font-family:"Calibri",
"sans-serif";}#yiv4624533315 a:link, #yiv4624533315
span.yiv4624533315MsoHyperlink
{color:blue;text-decoration:underline;}#yiv4624533315 a:visited, #yiv4624533315
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1.0in 1.0in 1.0in;}#yiv4624533315 div.yiv4624533315WordSection1 {}-->A friend
of mine is a consulting engineer in the hospital industry, and he has a sick
Dranetz 626 Powerline Disturbance Analyzer. This unit is a boxy mainframe which
accepts a dozen or so “input modules”, a bit like the older Tektronix
oscilloscopes had special purpose plug-in modules. Anyway, he would really like
to get a schematic and documentation on the “AC to Neutral Line Monitor”
plug-in (sorry, that’s the best he can describe it, no model number) so that he
can get his analyzer fully operational again. He has already tried Dranetz,
but they said the early 80’s hardware is no longer supported by them. Can
anyone help out with some electronic documentation or maybe just some
photocopies? Thanks in advance! Ed Price
WB6WSN
Chula Vista, CA USA -
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