Phil Camera wrote:
> I've been familiar with Loos gauges for years on the boat and now
> with my guyed tower. Tension is tension and it won't make a bit of
> difference what the material of construction is. If you know the way
> the gauge works, a precalibrated spring/level is used to measure the
> tension. The tension in a sailboat mast guy is the same as a tension
> in a tower guy. Use the Loos gauge with no qualms; you're doing it
> the right way then. Phil KB9CRY
Not exactly Phil - the stiffness of the guy has a significant effect
on the accuracy of a deflection type gauge. For a given tension, a
flexible guy (i.e. aircraft cable) will deflect the gauge less than
a stiff guy (EHS).
My Penntech gauge (same basic type as the Loos but for larger guys)
came with a table to convert deflection readout to tension for various
guy material and size.
For example, 5/8" 1x7 EHS will deflect the gauge almost twice as
far as 5/8" 1x19 EHS in the 1000 lb range. With greater tensions
the difference is less (30% at 8000 lbs) but still substantial.
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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