> The calibration chart that comes with the instrument is correct only
for the 19-strand wire rope it was designed for, which is what they use for
sailboat rigging. The stiffness of the cable determines the reading as
much as does the tension. The chart that comes with the gauge is WAY off and
totally useless for EHS guy cable. I'm sure it would be just as far off,
if not more so, with phillystran.
> With the two pieces tied together, they both have the same tension, so
the tension reading on the wire rope has to be the same as the tension on
the EHS, thus allowing me to make up an accurate chart for 3/16 EHS. That
same procedure would work equally well with phillystran; I would make up a
separate chart for each.
Howdy --
Here's my 2 cents worth again. I conducted the same test only I also
had a segment of HPTG4000 inline and you proved my point, which is that they
all read the same. As a wire rope has tension increased on it, it becomes
more rod-like regardless of type of material. So what do your charts say?
Are they similar or what? Are you dealing with a couple of percent or
something else? Inquiring minds want to know.
BTW the Loos PT-2 will only measure HPTG4000 due to the size of the
jacket but it does fine on it.
Cheers,
Steve K7LXC
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